JP2007105644A - Operation controller and operation support device of membrane filtration apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation controller which can control even a membrane filtration apparatus having a plurality of series so that the operation cost of a water purification plant including a waste water treatment apparatus besides the filtration apparatus can be kept within a given set range. <P>SOLUTION: This operation controller of the membrane filtration apparatus having the plurality of the series is provided with an operation condition calculation part calculating a flow distribution for each system of the membrane filtration apparatus on the basis of a planned water amount to be treated in the membrane filtration apparatus, membrane pressure differences of the membrane filtration apparatus of the respective series, information of operation/stopping of the membrane filtration apparatus of the respective series, and the target value of the operation cost of the membrane filtration apparatus; a flow controller controlling the flow of respective series on the basis of the calculation results of the flow distribution, and a display device displaying distributed flow information of each system being the calculation results of the flow distribution. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、原水に含まれる濁質や病原性原虫などの分離除去のために設置される浄水場向け膜ろ過処理装置の運転制御装置および運転支援装置に関する。   The present invention relates to an operation control device and an operation support device for a membrane filtration treatment device for a water purification plant installed for separating and removing turbidity and pathogenic protozoa contained in raw water.

膜ろ過処理は、有機物やセラミック等の膜面で濁質や有機物を漉し取り除去する単位操作である。必要とする水量が増減した場合には、ろ過ポンプの圧力調整や起動・停止により対応が可能であり、かつ同水質の処理水を継続して得ることが可能である特徴を持つ。従って、水量変化に対する運転管理が容易である。一方、既存の浄水場に広く適用されている急速ろ過法は、凝集剤と濁質の化学反応とフロック沈降の物理現象を利用しており、必要な処理水量が変わった場合には処理水質が変動する。従って、水量変化に対する運転管理は容易ではなく、現在の多くの浄水場では水量が急変しないよう、できるだけ一定となるように運転計画が策定されている。しかしながら、実際には需要量の日間変動や年間の需要水量変動があるため、一定の幅ではあるが流量を制御する場合がありうる。さらに、今後は夜間電力の積極活用による運転費低減や複数の浄水場の広域連携運転による省エネルギー運転が検討される方向にあり、浄水場ではこれまで以上に流量変動に対応した運転が要求されることが想定される。この点において、膜ろ過処理は急速ろ過法などの処理方式に比べて有利になりつつある。   Membrane filtration is a unit operation that removes and removes turbidity and organic matter on the membrane surface of organic matter and ceramics. When the required amount of water increases or decreases, it is possible to respond by adjusting the pressure or starting / stopping the filtration pump, and it is possible to continuously obtain treated water of the same water quality. Therefore, operation management with respect to a change in the amount of water is easy. On the other hand, the rapid filtration method widely applied to existing water treatment plants uses the physical phenomenon of flocs sedimentation and chemical reaction of flocculant and turbidity. fluctuate. Therefore, operation management with respect to changes in the amount of water is not easy, and in many current water treatment plants, an operation plan is formulated so as to be as constant as possible so that the amount of water does not change suddenly. However, in actuality, there are daily fluctuations in demand and fluctuations in annual water demand, so there is a possibility that the flow rate is controlled with a certain range. Furthermore, in the future, there is a direction to consider operating energy savings by reducing operation costs by actively using nighttime power and wide-area cooperative operation of multiple water treatment plants, and water treatment plants are required to operate more in response to flow fluctuations than before. It is assumed that In this respect, membrane filtration treatment is becoming more advantageous than treatment methods such as rapid filtration.

浄水場に導入される膜ろ過処理装置は、一般に複数の処理系列を有する。１つの系列には複数の膜ろ過処理ユニットが備えられ、１つの膜ろ過処理ユニットには複数の膜モジュールが備えられる。それぞれの系列にはろ過ポンプが備えられ、このろ過ポンプを起動／停止することで流量を制御できる。また、定流量弁やろ過ポンプの回転数制御を系列ごとに備えた膜ろ過処理装置も多く見られる。処理系列が１系列の場合には、必要な水量に対する適切な制御方法を決定することは容易である。しかし、複数の処理系列があり、かつ各系列で膜差圧など膜ろ過処理装置の特性条件が異なる場合、各系列の流量と制御方式，制御目標値の最適な組合せを知ることは容易ではない。   A membrane filtration treatment apparatus introduced into a water purification plant generally has a plurality of treatment sequences. One series includes a plurality of membrane filtration processing units, and one membrane filtration processing unit includes a plurality of membrane modules. Each series is provided with a filtration pump, and the flow rate can be controlled by starting / stopping the filtration pump. There are also many membrane filtration treatment apparatuses equipped with constant flow valves and rotation control of filtration pumps for each series. When the number of treatment series is one, it is easy to determine an appropriate control method for the required amount of water. However, when there are multiple processing sequences and the characteristics of the membrane filtration device such as membrane differential pressure are different for each sequence, it is not easy to know the optimal combination of flow rate, control method, and control target value for each sequence. .

複数系列を有する膜ろ過処理装置の流量を制御する方式や技術に関しては、ＵＦ膜や
ＭＦ膜を用いた例としては見当たらない。ＲＯ膜を用いた膜ろ過処理装置の運転であれば、例えば非特許文献１の記載がある。これは高圧ＲＯ設備の生産水量に関する内容であり、生産水量は高圧ＲＯユニットの運転台数の調整により設定すると述べられている。 Regarding the method and technique for controlling the flow rate of the membrane filtration processing apparatus having a plurality of series, it is not found as an example using a UF membrane or an MF membrane. For example, Non-Patent Document 1 describes the operation of a membrane filtration apparatus using an RO membrane. This is a content related to the amount of water produced by the high-pressure RO facility, and it is stated that the amount of produced water is set by adjusting the number of operating high-pressure RO units.

“会社案内”、［高圧ＲＯ設備］、協和機電工業株式会社、［平成１５年８月８日検索］、インターネット＜ＵＲＬ：http://www.kyowa-kk.co.jp/info/prev.asp?fol_id=2463＞“Company Information”, [High Voltage RO Equipment], Kyowa Denki Kogyo Co., Ltd. [Search August 8, 2003], Internet <URL: http://www.kyowa-kk.co.jp/info/prev. asp? fol_id = 2463>

従来の凝集沈殿ろ過処理に比べ、膜ろ過処理は多量の電力を消費する。この中でも膜にろ過圧力を加えるろ過ポンプが消費する電力が大きく、この動力費の低減が運転費抑制につながる。   Compared with the conventional coagulation sedimentation filtration process, the membrane filtration process consumes a large amount of power. Among these, the electric power consumed by the filtration pump that applies the filtration pressure to the membrane is large, and the reduction of the power cost leads to the suppression of the operation cost.

非特許文献１で述べられるように、膜ろ過処理の流量を変更する場合には、運転する系列や台数の増減により対応することが一般的な手段の一つである。しかし、運転系列数の増減による流量制御では、例えば計画水量が少ない場合、利用しない系列が一部生じることになる。すなわち、有効に利用できない膜モジュールが生じるため、非効率である可能性がある。また、定流量弁を用いた流量の制御では、弁での圧力損失が生じ、効率が低下する。回転数制御を用いた流量制御ではインバータでの損失が生じるが、定流量弁より損失は小さい。従って動力費の面では、定流量弁より回転数制御のほうが好ましい。その場合でも、各系列の膜差圧が等しくない場合、あるいは系列の一部の膜ユニットが休止している場合には、各系列に設定すべき最適な流量、および回転数を知る技術はなかった。   As described in Non-Patent Document 1, when changing the flow rate of the membrane filtration process, it is one of the common means to cope with the increase or decrease in the number of operating series or the number of units. However, in the flow control by increasing / decreasing the number of operation series, for example, when there is a small amount of planned water, some series are not used. That is, since a membrane module that cannot be used effectively is generated, it may be inefficient. Further, in the control of the flow rate using the constant flow valve, a pressure loss occurs in the valve, and the efficiency is lowered. In the flow control using the rotational speed control, a loss occurs in the inverter, but the loss is smaller than that of the constant flow valve. Therefore, in terms of power cost, the rotational speed control is more preferable than the constant flow valve. Even in that case, there is no technique for knowing the optimum flow rate and rotation speed to be set for each series when the differential pressures of each series are not equal, or when some membrane units of the series are at rest. It was.

さらに、回転数制御で各系列の流量を適正化できた場合でも、流量が異なる場合には膜の目詰まり進行状況が異なる。目詰まりは流量が多い系列ほど早く進行する。その結果、逆洗工程への適切な切替タイミングも系列により異なる。しかし、流量が時間的に変化する場合に、ろ過ポンプの動力費を最小とするような逆洗工程への切替タイミングを求める技術はこれまで無かった。   Further, even when the flow rate of each series can be optimized by the rotational speed control, the progress of clogging of the film differs if the flow rate is different. Clogging progresses faster as the flow rate increases. As a result, the appropriate switching timing to the backwashing process also differs depending on the series. However, until now, there has been no technique for obtaining the switching timing to the backwashing process that minimizes the power cost of the filtration pump when the flow rate changes with time.

このように、膜の目詰まりはろ過する水量の影響を受けるが、これに加えて前処理装置の運転状況の影響も受ける。例えば、前処理装置として凝集処理が用いられる場合がある。その場合、凝集剤注入量がどの程度であれば膜の目詰まりを抑制でき、ろ過ポンプの動力費をどの程度低減できるか、流量が時間的に変化する場合に予測する技術もこれまで無かった。   Thus, clogging of the membrane is affected by the amount of water to be filtered, but in addition to this, it is also affected by the operating condition of the pretreatment device. For example, an aggregation process may be used as the pretreatment device. In that case, there has been no technology for predicting when the flow rate changes with time, how much the flocculant injection amount can suppress the clogging of the membrane and how much the power cost of the filtration pump can be reduced. .

上記では簡単のためろ過ポンプの動力費のみについて述べたが、「運転費」には逆洗ポンプ動力費，循環ポンプ動力費，薬品費，汚泥処分費，膜の薬品洗浄費，膜交換費などの項目が含まれる。従って、これらの項目を全て考慮するためには排水処理装置の運転費も含めた考慮が必要となるが、この点を含めて評価できる技術もこれまで無かった。   In the above, only the power cost of the filtration pump has been described for simplicity, but the "operating cost" includes backwash pump power cost, circulation pump power cost, chemical cost, sludge disposal cost, membrane chemical cleaning cost, membrane replacement cost, etc. This item is included. Therefore, in order to consider all these items, it is necessary to consider the operation cost of the waste water treatment equipment, but there has been no technology that can be evaluated including this point.

本発明の目的は上記の従来技術の問題点に鑑み、複数系列を有する膜ろ過処理装置であっても、前処理装置と排水処理装置まで含めた浄水場の運転費があらかじめ設定した範囲内となるような制御を可能とする運転制御装置および運転支援装置を提供することにある。   In view of the above-mentioned problems of the prior art, the object of the present invention is that the operating cost of the water treatment plant including the pretreatment device and the wastewater treatment device is within a preset range, even for a membrane filtration treatment device having a plurality of series. It is an object to provide an operation control apparatus and an operation support apparatus that enable such control.

上記目的を達成するための本発明は、複数系列を有する膜ろ過処理装置の運転制御装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の膜差圧，各系列の前記膜ろ過処理装置の運転／休止情報、前記膜ろ過処理装置の運転費目標値とに基づき、前記膜ろ過処理装置の系列毎の流量配分を計算する運転条件計算部と、流量配分の計算結果に基づき各系列の流量を制御する流量制御装置と、流量配分の計算結果である系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   In order to achieve the above object, the present invention provides an operation control device for a membrane filtration device having a plurality of series, a planned water amount to be treated by the membrane filtration device, a membrane differential pressure of the membrane filtration device for each series, An operating condition calculation unit that calculates flow rate distribution for each series of the membrane filtration processing device based on operation / pause information of the membrane filtration processing device of each series and an operating cost target value of the membrane filtration processing device, The flow rate control device for controlling the flow rate of each series based on the calculation result of the above and the display device for displaying the distribution flow rate information for each series, which is the calculation result of the flow rate distribution, are provided.

あるいは、複数系列を有する膜ろ過処理装置の運転制御装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の膜差圧，各系列の前記膜ろ過処理装置の運転／休止情報とに基づき、前記膜ろ過処理装置の系列毎の流量配分を求め、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費を計算し、該運転費と前記膜ろ過処理装置の運転目標値とを比較判定して、前記運転費が前記運転目標範囲内となる条件を計算する運転条件計算部と、流量配分の計算結果に基づき各系列の流量を制御する流量制御装置と、流量配分の計算結果である系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation control device of the membrane filtration processing device having a plurality of series, the planned water amount to be treated by the membrane filtration processing device, the membrane differential pressure of the membrane filtration treatment device of each series, the membrane filtration treatment device of each series Based on the operation / pause information, flow distribution for each series of the membrane filtration device is obtained, and an operation cost including a power cost of the filtration pump of the membrane filtration device is calculated, and the operation cost and the membrane filtration device are calculated. An operation condition calculation unit that calculates a condition that the operation cost is within the operation target range, and a flow rate control device that controls the flow rate of each series based on the calculation result of the flow rate distribution. And a display device for displaying distribution flow information for each series, which is a calculation result of flow distribution, on a screen.

あるいは、複数系列を有する膜ろ過処理装置の運転制御装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の膜差圧，各系列の前記膜ろ過処理装置の運転／休止情報に基づき、前記膜ろ過処理装置の系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、前記運転条件判定部の判定結果に基づき各系列の流量を制御する流量制御装置と、前記運転条件判定部の判定結果である系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation control device of the membrane filtration processing device having a plurality of series, the planned water amount to be treated by the membrane filtration processing device, the membrane differential pressure of the membrane filtration treatment device of each series, the membrane filtration treatment device of each series Based on the operation / pause information, the operating condition calculation unit for calculating the flow rate distribution for each series of the membrane filtration processing device, and the operation cost including the power cost of the filtration pump of the membrane filtration processing device, An operation condition determination unit that extracts a condition that falls within the operation target range, a flow rate control device that controls a flow rate of each series based on a determination result of the operation condition determination unit, and a series that is a determination result of the operation condition determination unit And a display device for displaying the distributed flow rate information on the screen.

あるいは、複数系列を有する膜ろ過処理装置の運転制御装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，各系列の前記膜ろ過処理装置の膜差圧および過去からの膜差圧上昇量またはろ過流量の減少量に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、前記運転条件判定部の判定結果である前記膜ろ過処理装置推奨運転操作量の計算値に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、前記運転条件判定部の判定結果に基づき各系列の流量を制御する流量制御装置と、前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation control device of the membrane filtration processing device having a plurality of series, the planned water amount to be processed by the membrane filtration processing device, the operation / pause information of the membrane filtration processing device of each series, the membrane filtration processing device of each series Operating conditions to calculate the recommended operating volume of the membrane filtration system, including backwash time and filtration time, and flow distribution for each series, based on the membrane differential pressure and the amount of increase in the membrane differential pressure from the past or the decrease in the filtration flow rate A calculation unit, an operation condition determination unit that extracts a condition in which an operating cost including a power cost of the filtration pump of the membrane filtration processing device is within an operation target range of the membrane filtration processing device, and a determination of the operation condition determination unit Based on the calculated value of the membrane filtration processing device recommended operation amount as a result, the filtration / backwash control unit for controlling the start and stop of each series of filtration pumps and backwash pumps, and the determination result of the operation condition determination unit Based on each series A flow rate control device that controls a flow rate, and a display device that displays a membrane filtration processing device recommended operation amount, which is a determination result of the operation condition determination unit, and distribution flow rate information for each series on a screen are provided. .

あるいは、複数系列を有する膜ろ過処理装置の運転制御装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量の計算値に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、前記運転条件判定部の判定結果に基づき各系列の流量を制御する流量制御装置と、前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation control device of the membrane filtration processing device having a plurality of series, based on the planned water amount to be treated by the membrane filtration treatment device, the operation / pause information of the membrane filtration treatment device of each series, and the turbidity measurement value of the raw water The recommended operation amount of the membrane filtration treatment device including the backwash time and the filtration time, the operation condition calculation unit for calculating the flow rate distribution for each series, and the operation cost including the power cost of the filtration pump of the membrane filtration treatment device, Based on the calculated value of the operation amount of the membrane filtration processing device recommended operation amount, which is the determination result of the operation condition determination unit, the operation condition determination unit that extracts the condition within the operation target range of the membrane filtration processing device Filtration / backwash control unit for controlling start and stop of pump and backwash pump, flow rate control device for controlling flow rate of each series based on determination result of operation condition determination unit, and determination result of operation condition determination unit Membrane filtration The allocation rate information management device recommended driving operation amount and each series is characterized in that a display device for displaying on the screen.

あるいは、膜ろ過処理装置の膜差圧上昇を抑制する前処理装置を備え、複数系列を有する前記膜ろ過処理装置の運転制御装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、前記運転条件判定部の判定結果である前処理装置運転操作量の計算値に基づき、前記前処理装置の運転を制御する前処理装置制御装置と、前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量の計算値に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、前記運転条件判定部の判定結果である流量配分の計算値に基づき各系列の流量を制御する流量制御装置と、前記運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation control device of the membrane filtration device having a plurality of series, a pretreatment device that suppresses the increase in the membrane differential pressure of the membrane filtration device, the planned amount of water to be treated by the membrane filtration device, Based on the operation / pause information of the membrane filtration device and the measured turbidity of raw water, the amount of pretreatment device operation, the recommended amount of membrane filtration device operation including backwash time and filtration time, flow distribution for each series An operating condition calculation unit for calculating the operating condition including the operating cost including the power cost of the filtration pump of the membrane filtration treatment device is within the operation target range of the membrane filtration treatment device, and the operation A pretreatment device controller that controls the operation of the pretreatment device based on a calculated value of the pretreatment device operation amount that is a decision result of the condition decision unit, and a membrane filtration treatment device that is the decision result of the operation condition decision unit Recommended operation amount Based on the calculated value, the filtration / backwash control unit for controlling the start and stop of each series of filtration pumps and backwash pumps, and the flow rate of each series based on the calculated value of the flow rate distribution which is the determination result of the operating condition determination unit And a display device for displaying on the screen the pretreatment device operation amount, the filtration processing device recommended operation amount, and the distribution flow rate information for each series, which are the determination results of the operation condition determination unit. It is characterized by that.

あるいは、膜ろ過処理装置の膜差圧上昇を抑制する機能を有する前処理装置と、前記膜ろ過処理装置の逆洗排水を高濁度分と低濁度分に分離する排水処理装置とを備え、複数の系列を有する前記膜ろ過処理装置の運転制御装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分，排水処理装置運転操作量を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、前記運転条件判定部の判定結果である前処理装置運転操作量の計算値に基づき、前処理装置の運転を制御する前処理装置制御部と、前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量の計算結果に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、前記運転条件判定部の判定結果である流量配分の計算値に基づき各系列の流量を制御する流量制御装置と、前記運転条件判定部の判定結果である排水処理装置運転操作量の計算値に基づき、排水処理装置の運転を制御する排水処理装置制御部と、前記運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報，排水処理装置運転操作量を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, a pretreatment device having a function of suppressing an increase in the membrane differential pressure of the membrane filtration device and a wastewater treatment device for separating backwash wastewater of the membrane filtration device into a high turbidity component and a low turbidity component In the operation control device of the membrane filtration device having a plurality of series, the planned water amount to be treated by the membrane filtration device, the operation / pause information of the membrane filtration device of each series, and the turbidity measurement value of raw water Based on the pretreatment device operation amount, the recommended operation amount of the membrane filtration processing device including the backwash time and filtration time, the flow rate distribution for each series, the operation condition calculation unit for calculating the wastewater treatment device operation amount, and the membrane An operating condition determination unit that extracts a condition in which an operating cost including a power cost of a filtration pump of the filtration processing device is within an operation target range of the membrane filtration processing device, and a preprocessing device that is a determination result of the operating condition determination unit Based on the calculated value of the operation amount, Based on the calculation result of the recommended amount of operation of the membrane filtration treatment device, which is the determination result of the operation condition determination unit, the pretreatment device control unit that controls the operation of the treatment device, and the activation of the filtration pumps and backwash pumps of each series A filtration / backwash control unit that controls stop, a flow rate control device that controls the flow rate of each series based on a calculation value of flow rate distribution that is a determination result of the operation condition determination unit, and a determination result of the operation condition determination unit Based on the calculated value of the operation amount of a certain wastewater treatment device, the wastewater treatment device control unit that controls the operation of the wastewater treatment device, the pretreatment device operation operation amount that is the determination result of the operation condition determination unit, and the recommended operation of the filtration treatment device It is characterized by comprising a display device for displaying the operation amount, the distribution flow rate information for each series, and the operation amount of the waste water treatment device on the screen.

あるいは、複数系列を有する膜ろ過処理装置の運転支援装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の膜差圧，各系列の前記膜ろ過処理装置の運転／休止情報に基づき、前記膜ろ過処理装置の系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、該運転条件判定部の判定結果である系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation support device of the membrane filtration processing device having a plurality of series, the planned water amount to be treated by the membrane filtration processing device, the membrane differential pressure of the membrane filtration processing device of each series, the membrane filtration processing device of each series Based on the operation / pause information, the operating condition calculation unit for calculating the flow rate distribution for each series of the membrane filtration processing device, and the operation cost including the power cost of the filtration pump of the membrane filtration processing device, An operation condition determination unit that extracts a condition that falls within the operation target range, and a display device that displays distribution flow rate information for each series, which is a determination result of the operation condition determination unit, are provided on the screen.

あるいは、複数系列を有する膜ろ過処理装置の運転支援装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，各系列の前記膜ろ過処理装置の膜差圧および過去からの膜差圧上昇量またはろ過流量の減少量に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、該運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation support device of the membrane filtration processing device having a plurality of series, the planned water amount to be processed by the membrane filtration processing device, the operation / pause information of the membrane filtration processing device of each series, the membrane filtration processing device of each series Operating conditions to calculate the recommended operating volume of the membrane filtration system, including backwash time and filtration time, and flow distribution for each series, based on the membrane differential pressure and the amount of increase in the membrane differential pressure from the past or the decrease in the filtration flow rate A calculation unit, an operation condition determination unit that extracts a condition in which an operation cost including a power cost of a filtration pump of the membrane filtration processing device is within an operation target range of the membrane filtration processing device, and a determination of the operation condition determination unit It is characterized by comprising a display device that displays the result of the recommended operation amount of the membrane filtration processing device and the distribution flow rate information for each series on the screen.

あるいは、複数系列を有する膜ろ過処理装置の運転支援装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、該運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, in the operation support device of the membrane filtration processing apparatus having a plurality of series, based on the planned water amount to be treated by the membrane filtration treatment apparatus, the operation / pause information of the membrane filtration treatment apparatus of each series, and the turbidity measurement value of the raw water The recommended operation amount of the membrane filtration treatment device including the backwash time and the filtration time, the operation condition calculation unit for calculating the flow rate distribution for each series, and the operation cost including the power cost of the filtration pump of the membrane filtration treatment device, An operation condition determination unit that extracts a condition that falls within the operation target range of the membrane filtration processing device, a membrane filtration treatment device recommended operation amount that is a determination result of the operation condition determination unit, and distribution flow information for each series are displayed on the screen. And a display device for displaying.

あるいは、膜ろ過処理の膜差圧上昇を抑制する機能を有する前処理装置を備え、複数の系列を有する膜ろ過処理装置の運転支援装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、該運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, a pretreatment device having a function of suppressing an increase in the membrane differential pressure in the membrane filtration treatment is provided, and in the operation support device of the membrane filtration treatment device having a plurality of series, the planned water amount to be treated by the membrane filtration treatment device, Based on the operation / pause information of the membrane filtration device of the series and the measured turbidity of raw water, the amount of pretreatment device operation, the recommended amount of membrane filtration treatment operation including backwash time and filtration time, An operation condition calculation unit that calculates flow rate distribution, an operation condition determination unit that extracts a condition in which an operation cost including a power cost of a filtration pump of the membrane filtration processing device falls within an operation target range of the membrane filtration treatment device, and And a display device that displays on the screen the pretreatment device operation amount, the filtration processing device recommended operation amount, and the distribution flow rate information for each series, which are the determination results of the operation condition determination unit.

あるいは、膜ろ過処理装置の膜差圧上昇を抑制する機能を有する前処理装置と、前記膜ろ過処理装置の逆洗排水を高濁度分と低濁度分に分離する排水処理装置とを備え、複数の系列を有する前記膜ろ過処理装置の運転支援装置において、前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分，排水処理装置運転操作量を計算する運転条件計算部と、前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、前記運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報，排水処理装置運転操作量を画面に表示する表示装置とを備えたことを特徴とする。   Alternatively, a pretreatment device having a function of suppressing an increase in the membrane differential pressure of the membrane filtration device and a wastewater treatment device for separating backwash wastewater of the membrane filtration device into a high turbidity component and a low turbidity component In the operation support device of the membrane filtration device having a plurality of series, the planned water amount to be treated by the membrane filtration device, operation / pause information of the membrane filtration device of each series, and turbidity measurement value of raw water Based on the pretreatment device operation amount, the recommended operation amount of the membrane filtration processing device including the backwash time and filtration time, the flow rate distribution for each series, the operation condition calculation unit for calculating the wastewater treatment device operation amount, and the membrane An operating condition determination unit that extracts a condition in which an operating cost including a power cost of a filtration pump of the filtration processing device is within an operation target range of the membrane filtration processing device, and a preprocessing device that is a determination result of the operating condition determination unit Operating volume, filtration equipment recommended Rolling operation amount, allocation rate information for each sequence, characterized in that the waste water treatment apparatus driving operation amount and a display device for displaying on the screen.

本発明によると、複数系列を有する膜ろ過処理装置全体としての運転費を低減できるような前処理装置の制御と、膜ろ過処理装置の各系列のろ過ポンプの流量制御およびろ過・逆洗切替制御と、排水処理装置の制御を実現できる。   According to the present invention, the control of the pretreatment device that can reduce the operating cost of the entire membrane filtration processing apparatus having a plurality of series, the flow rate control of the filtration pump of each series of the membrane filtration processing apparatus, and the filtration / backwash switching control And control of the waste water treatment device can be realized.

複数系列を有する膜ろ過処理装置であっても、前処理装置と排水処理装置まで含めた浄水場の運転費があらかじめ設定した範囲内となるような制御を可能とするという目的を、簡単な手法で実現した。   Even if it is a membrane filtration treatment device having a plurality of systems, a simple method aims to enable control so that the operating cost of the water treatment plant including the pretreatment device and the wastewater treatment device is within a preset range. Realized.

以下、本発明の実施例について図面を参照しながら詳細に説明する。なお、各実施例を通して同一の符号は同等のものを示している。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol has shown the equivalent thing through each Example.

図１は本発明の第１の実施例による膜ろ過処理装置の運転制御装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づいた計算により、膜ろ過処理装置の流量を制御する装置の機能ブロック図を示す。   FIG. 1 shows the configuration of an operation control apparatus for a membrane filtration processing apparatus according to a first embodiment of the present invention. The calculation is based on the membrane differential pressure information of each series of the membrane filtration treatment apparatus having a plurality of series. The functional block diagram of the apparatus which controls the flow volume of is shown.

各系列の膜ろ過処理装置１における１次側と２次側の圧力計測値の差で求められる各系列膜差圧２の値は、運転条件計算部６に与えられる。運転条件計算部６には、浄水場全体としての計画水量３の値と、各系列膜ろ過処理装置運転／休止情報５が与えられる。これらの値は、オペレータがその都度マンマシンインタフェイスから入力しても良く、あるいは別途存在するソフトウェアやハードウェアの出力値として与えられても良い。運転条件計算部６では、後述するアルゴリズムを用いて運転条件に対する運転費が計算される。この計算結果である運転条件と運転費計算結果２０は、運転条件判定部１６に与えられる。運転条件判定部１６には、運転費目標範囲４の値が与えられ、運転費目標範囲４を満足する運転条件と運転費計算結果２０を抽出する。抽出した結果のうち、系列ごとの流量配分７の値は、表示装置８と各系列の流量制御装置９に与えられる。表示装置８は系列ごとの流量配分７の値、あるいは系列ごとの流量配分７の値を比率に換算した値を画面に表示する。各系列の流量制御装置９は、系列ごとの流量配分７の値に基づき、各系列の膜ろ過処理装置１の流量を制御する。   The value of each series membrane differential pressure 2 obtained by the difference between the measured pressure values on the primary side and the secondary side in each series of membrane filtration apparatus 1 is given to the operating condition calculation unit 6. The operating condition calculation unit 6 is provided with the value of the planned water volume 3 as the entire water purification plant and each series membrane filtration processing device operation / pause information 5. These values may be input by the operator from the man-machine interface each time, or may be given as output values of separately existing software or hardware. The operating condition calculation unit 6 calculates an operating cost for the operating conditions using an algorithm described later. The operation condition and the operation cost calculation result 20 which are the calculation results are given to the operation condition determination unit 16. The operating condition determination unit 16 is given a value of the operating cost target range 4 and extracts operating conditions that satisfy the operating cost target range 4 and the operating cost calculation result 20. Among the extracted results, the value of the flow distribution 7 for each series is given to the display device 8 and the flow control apparatus 9 for each series. The display device 8 displays the value of the flow distribution 7 for each series or the value obtained by converting the value of the flow distribution 7 for each series into a ratio on the screen. The flow control device 9 for each series controls the flow rate of the membrane filtration apparatus 1 for each series based on the value of the flow distribution 7 for each series.

運転条件計算部６と運転条件判定部１６において、系列ごとの流量配分７の値を計算する手法の一例を以下に述べる。   An example of a method for calculating the value of the flow rate distribution 7 for each series in the operation condition calculation unit 6 and the operation condition determination unit 16 will be described below.

懸濁物質を含む水をろ過する場合、流束Ｊｖ（ｍ／ｓ）は次式で与えられる。   When filtering water containing suspended solids, the flux Jv (m / s) is given by:

（数１）
Ｊｖ＝ΔＰ／（μ・（Ｒｍ＋Ｒｃ）） …（１） (Equation 1)
Jv = ΔP / (μ · (Rm + Rc)) (1)

（数２）
Ｑ＝Ａ・Ｊｖ …（２）
ここで、Ｊｖ：ろ過流束（ｍ／ｓ）,Ａ：膜面積（ｍ²）,ΔＰ：ろ過時の膜差圧(Ｐａ)，μ：水の粘性係数（Ｐａ・ｓ），Ｒｍ：膜のろ過抵抗（１／ｍ），Ｒｃ：ケーク抵抗
（１／ｍ），Ｑ：ろ過流量（ｍ³／ｓ）である。 (Equation 2)
Q = A · Jv (2)
Here, Jv: Filtration flux (m / s), A: Membrane area (m ² ), ΔP: Membrane differential pressure (Pa) during filtration, μ: Water viscosity coefficient (Pa · s), Rm: Membrane Filtration resistance (1 / m), Rc: cake resistance (1 / m), Q: filtration flow rate (m ³ / s).

式（１）と式（２）からＪｖを消去すると、式（３）が得られる。   When Jv is eliminated from the expressions (1) and (2), the expression (3) is obtained.

（数３）
ΔＰ＝μ・（Ｒｍ＋Ｒｃ）・Ｑ／Ａ …（３）
一般に、ポンプの動力は送液流量とヘッド（吐出圧）に比例し、式（４）で計算される。 (Equation 3)
ΔP = μ · (Rm + Rc) · Q / A (3)
In general, the power of the pump is proportional to the liquid flow rate and the head (discharge pressure), and is calculated by the equation (4).

（数４）
ｋＷ＝０.１６３・γ・Ｗ・Ｈ／（η₁・η₂） …（４）
ここで、ｋＷ：ポンプ所要動力（ｋＷ），γ：液比重（ｇ／ｍ³），Ｗ：送液流量（ｍ³／min），Ｈ：ヘッド（kg／cm²），η₁：電動機効率（−），η₂：ポンプ効率（−）である。 (Equation 4)
kW = 0.163 · γ · W · H / (η ₁ · η ₂ ) (4)
Here, kW: pump required power (kW), γ: liquid specific gravity (g / m ³ ), W: liquid feed flow rate (m ³ / min), H: head (kg / cm ² ), η ₁ : motor efficiency (−), Η ₂ : Pump efficiency (−).

式（３）のＱを式（４）のＷに、式（３）のΔＰを式（４）のＨに単位換算し、係数をＣとおくと式（５）が導出される。   When Q in Equation (3) is converted to W in Equation (4), ΔP in Equation (3) is converted to H in Equation (4), and the coefficient is C, Equation (5) is derived.

（数５）
ｋＷ＝Ｃ・Ｑ² …（５）
ここで、Ｃ：係数（ｋＷ・ｓ²／ｍ⁶）であり、この値は（Ｒｍ＋Ｒｃ）の値に比例し、膜面積Ａの値に反比例する。この式（５）に示すように、膜ろ過で消費されるろ過ポンプの動力は流量の二乗に比例することが分かる。 (Equation 5)
kW = C · Q ² (5)
Here, C is a coefficient (kW · s ² / m ⁶ ), and this value is proportional to the value of (Rm + Rc) and inversely proportional to the value of the film area A. As shown in this equation (5), it can be seen that the power of the filtration pump consumed in membrane filtration is proportional to the square of the flow rate.

係数ＣにはＲｍおよびＲｃが含まれているため、膜ろ過処理装置，膜ろ過処理ユニット，膜ろ過処理モジュールが異なると値が異なる。また、Ｒｃの値はろ過工程や逆洗工程に伴い経時的に変化するため、Ｃの値は時間的にも値が変わる。さらに、Ｃには水の粘性係数μや液比重γが含まれているため、水温が変化しても値が変化する。   Since the coefficient C includes Rm and Rc, the values are different when the membrane filtration apparatus, the membrane filtration unit, and the membrane filtration module are different. Moreover, since the value of Rc changes with time with a filtration process or a backwashing process, the value of C also changes over time. Further, since C includes the viscosity coefficient μ of water and the liquid specific gravity γ, the value changes even if the water temperature changes.

今、図２で示すように４系列から構成される膜ろ過処理装置を想定する。これが図１の膜ろ過処理装置１に相当する。ある時刻での各系列の流量をＱ₁，Ｑ₂，Ｑ₃，Ｑ₄とする。系列１のろ過ポンプにおいて消費される動力ｋＷ₁は式（６）で示される。 Now, assume a membrane filtration apparatus composed of four systems as shown in FIG. This corresponds to the membrane filtration apparatus 1 in FIG. Let Q ₁ , Q ₂ , Q ₃ , and Q ₄ be the flow rates of each series at a certain time. The power kW ₁ consumed in the series 1 filtration pump is expressed by equation (6).

（数６）
ｋＷ₁＝Ｃ₁・Ｑ₁ ² …（６）
同様にして、系列２から系列４までの動力も求められる。各系列膜差圧２の比率がａ₁：ａ₂：ａ₃：ａ₄であった場合、係数Ｃ₁，Ｃ₂，Ｃ₃，Ｃ₄の比率もａ₁：ａ₂：ａ₃：ａ₄となる。従って、全系列で消費される動力の総和は次式で表される。 (Equation 6)
kW ₁ = C ₁ · Q ₁ ² (6)
Similarly, power from series 2 to series 4 is also obtained. When the ratio of each series membrane pressure difference 2 is a ₁ : a ₂ : a ₃ : a ₄ , the ratios of the coefficients C ₁ , C ₂ , C ₃ and C ₄ are also a ₁ : a ₂ : a ₃ : a. ₄ Therefore, the sum of the power consumed in all the series is expressed by the following equation.

（数７）
ｋＷ_total＝Ｃ₁・Ｑ₁ ²＋Ｃ₂・Ｑ₂ ²＋Ｃ₃・Ｑ₃ ²＋Ｃ₄・Ｑ₄ ²
＝Ｃ₀・（ａ₁・Ｑ₁ ²＋ａ₂・Ｑ₂ ²＋ａ₃・Ｑ₃ ²＋ａ₄・Ｑ₄ ²） …（７）
ここで、ｋＷ_total：全系列で消費される動力の総和（ｋＷ）、Ｃ₀：定数（ｋＷ・ｓ²／ｍ⁶）である。これに対し、この膜ろ過処理装置の計画水量をＱ_total（ｍ³／ｓ）とすると、次式が成立する。 (Equation 7)
kW _total = C ₁ · Q ₁ ² + C ₂ · Q ₂ ² + C ₃ · Q ₃ ² + C ₄ · Q ₄ ²
= C ₀ · (a ₁ · Q ₁ ² + a ₂ · Q ₂ ² + a ₃ · Q ₃ ² + a ₄ · Q ₄ ² ) (7)
Here, kW _total is the total power (kW) consumed in all series, and C _{0 is a} constant (kW · s ² / m ⁶ ). On the other hand, when the planned water volume of this membrane filtration apparatus is Q _total (m ³ / s), the following equation is established.

（数８）
Ｑ_total＝Ｑ₁＋Ｑ₂＋Ｑ₃＋Ｑ₄ …（８）
通常、浄水場では需要予測の値などに基づき計画水量Ｑ_total が定められる。これが図１の計画水量３に相当する。この計画水量Ｑ_total を確保した上で、ろ過ポンプの動力費を含んだ運転費をできるだけ低くすることが施設を運転する側からは望ましい。運転費にはろ過ポンプの動力費のほかに、逆洗ポンプの動力費，膜の薬品洗浄費，膜の交換費，逆洗時に添加する薬品費なども含まれ得るが、以下では簡単のためろ過ポンプの動力費を運転費の評価指標とした実施例について述べる。なお、動力費は動力に費用原単位である電力量料金単価を乗じた値で求められ、動力費は動力と比例関係にあるとする。 (Equation 8)
Q _total = Q ₁ + Q ₂ + Q ₃ + Q ₄ (8)
Usually, in the water purification plant, the planned water quantity Q _total is determined based on the value of demand prediction. This corresponds to the planned water volume 3 in FIG. From the side of operating the facility, it is desirable to secure the planned amount of water Q _total and to reduce the operating cost including the power cost of the filtration pump as much as possible. The operating cost can include the power cost of the filtration pump, the power cost of the backwash pump, the chemical cleaning cost of the membrane, the replacement cost of the membrane, the chemical cost added at the time of backwashing, etc. An embodiment in which the power cost of the filtration pump is used as an evaluation index for operating cost will be described. It is assumed that the power cost is obtained by multiplying the power by a unit price of electric power, which is a cost unit, and the power cost is proportional to the power.

ろ過ポンプの動力をできるだけ抑制する条件を得るためには、式（８）の制約条件下で式（７）のｋＷ_total の値を最小化できるようＱ₁〜Ｑ₄の配分を決定する最適化演算を実施する必要がある。運転条件計算部６には、上記計算式と最適化演算を実施するモジュールが組み込まれる。最適化演算のアルゴリズムとしては総当り法，遺伝アルゴリズム，非線形計画法，最急勾配法などの数学的手段を使っても良いし、あらかじめ設定した複数の運転パターンから最適な１つを選択する手段でも良い。以下、具体的な数値を用いて最適化演算を実施した結果を記す。
いま、系列１と系列２の膜差圧に対し、系列３と系列４の膜差圧が１.３ 倍であった場合を想定する。すなわち、ａ₁〜ａ₄の値が１.０，１.０，１.３，１.３であるとする。最も簡単な流量制御として、各系列の流量を等しく設定した場合の動力の総和は、式（７）から０.２８８・Ｃ₀・Ｑ_total ²と求められる。これに対し、流量の最適化計算を総当り法によって実施した。 In order to obtain a condition that suppresses the power of the filtration pump as much as possible, an optimization that determines the distribution of Q _{1 to} Q ₄ so that the value of kW _total in Expression (7) can be minimized under the constraint condition in Expression (8). It is necessary to perform an operation. The operating condition calculation unit 6 incorporates a module for performing the above calculation formula and optimization calculation. Mathematical means such as brute force method, genetic algorithm, nonlinear programming method, steepest gradient method, etc. may be used as an algorithm for optimization calculation, or a method for selecting an optimal one from a plurality of preset operation patterns. But it ’s okay. Hereinafter, the result of performing the optimization calculation using specific numerical values will be described.
Assume that the membrane differential pressures of Series 3 and Series 4 are 1.3 times the membrane differential pressures of Series 1 and Series 2. That is, the values of a _{1 to} a ₄ are assumed to be 1.0, 1.0, 1.3, and 1.3. As the simplest flow rate control, the total sum of power when the flow rates of each series are set equal is obtained as 0.288 · C ₀ · Q _total ² from the equation (7). On the other hand, optimization calculation of the flow rate was performed by the round robin method.

動力費が最小となる条件を探索する最適化演算フローの一例を図３に示す。最適化すべき変数はＱ₁〜Ｑ₄の４つであり、ここではそれぞれの値をＱ_total の１／１００ずつ変更して動力総和ｋＷ_totalを計算する。総当り法の例であるので、試行するＱ₁の値は０〜
Ｑ_total，Ｑ₂〜Ｑ₃の値も０〜Ｑ_totalとなり、今回のフローでの計算回数は１００⁴ 回となる。より高速に解を得る必要がある場合には、この他の最適化計算手法を選択することが望ましい。図３ではループ計算に用いる中間変数として、Ｑ_{1_tmp}〜Ｑ_{4_tmp}を用いた。ボックス（ａ）の比較演算において、より小さい値のｋＷ_total が得られれば、その都度ボックス（ｂ）の処理演算においてｋＷ_totalとＱ_{1_tmp}〜Ｑ_{4_tmp}を、最小値ｓｕｍ_{_min}およびその最小値を与えるＱ_{1_min}〜Ｑ_{4_min}に置換する。このような手順をＱ₁〜Ｑ₄のとりうる全条件に対して反復することで、最終的に動力費が最小となる条件を得ることができる。 An example of an optimization calculation flow for searching for a condition that minimizes the power cost is shown in FIG. There are _four variables Q _{1 to} Q ₄ to be optimized. Here, the power sum kW _total is calculated by changing each value by 1/100 of Q _total . Since this is an example of the brute force method, the value of Q ₁ to be tried is 0 to
Q _total, Q ₂ ~Q ₃ values also 0～Q _total, and the number of calculations in this flow is 100 ^four times. When it is necessary to obtain a solution at a higher speed, it is desirable to select another optimization calculation method. In FIG. 3, Q 1 — _{tmp to} Q 4 — _tmp are used as intermediate variables used for loop calculation. In comparison operation box (a), as long obtained kW _total smaller value, the kW _total and _Q 1_tmp ~Q 4_tmp in processing operations each time the box (b), gives the minimum value sum _{_min} and the minimum value thereof Replace with _{Q1_min} to _{Q4_min} . By repeating such a procedure for all possible conditions of Q _{1 to} Q ₄ , it is possible to finally obtain a condition that minimizes the power cost.

本フローに従って動力費が最小となる条件を探索した結果、Ｑ_{1_min}＝０.２８３・
Ｑ_total，Ｑ_{2_min}＝０.２８３・Ｑ_total，Ｑ_{3_min}＝０.２１７・Ｑ_total，Ｑ_{4_min}＝
０.２１７・Ｑ_total、との値が求められた。これが図１で示した系列ごとの流量配分７の値に相当する。この場合の動力の総和は０.２８３・Ｃ₀・Ｑ_total ²となり、ろ過ポンプの動力を１.７％ 低減できる。膜ろ過モジュールには適正な使用流量範囲が定められているのが一般的であり、その制約条件やインバータ効率および使用可能範囲も加味して流量の適正化計算を実施することになる。 As a result of searching for a condition that minimizes the power cost according to this flow, Q _{1_min} = 0.283 ·
Q _total , Q _{2_min} = 0.283 · Q _total , Q _{3_min} = 0.217 · Q _total , Q _{4_min} =
A value of 0.217 · Q _total was determined. This corresponds to the value of the flow rate distribution 7 for each series shown in FIG. The total power in this case is 0.283 · C ₀ · Q _total ² and the power of the filtration pump can be reduced by 1.7%. In general, an appropriate use flow range is determined for the membrane filtration module, and the optimization of the flow rate is performed in consideration of the constraint conditions, the inverter efficiency, and the usable range.

このように求められた系列ごとの流量配分７の値は流量制御装置９に与えられ、実際の運転制御が実施される。流量制御装置としては、高効率にポンプの回転数制御を実施できる装置、例えばインバータ装置が望ましい。   The value of the flow rate distribution 7 for each series thus obtained is given to the flow rate control device 9, and actual operation control is performed. As the flow rate control device, a device capable of controlling the rotational speed of the pump with high efficiency, for example, an inverter device is desirable.

また、膜破断やメンテナンスのため、系列の膜ろ過処理ユニットを１ユニットだけ休止するなどのケースが現実的にはありうる。これは、図１の各系列膜ろ過処理装置運転／休止情報５として与えられる。系列１において、系列１に備えられた膜ろ過処理ユニット全体の膜面積に対し、系列１で運転可能な膜ろ過処理ユニットの膜面積の割合をｎ（−）とすると、式（７）は次式に変形できる。   In addition, there may actually be a case where only one unit of the membrane filtration processing unit is suspended due to membrane breakage or maintenance. This is given as each series membrane filtration processing apparatus operation / pause information 5 of FIG. In the series 1, when the ratio of the membrane area of the membrane filtration unit operable in the series 1 to the membrane area of the entire membrane filtration unit provided in the series 1 is n (−), the equation (7) is Can be transformed into a formula.

（数９）
ｋＷ_total＝Ｃ₁・ｎ・Ｑ₁ ²＋Ｃ₂・Ｑ₂ ²＋Ｃ₃・Ｑ₃ ²＋Ｃ₄・Ｑ₄ ²
＝Ｃ₀・（ａ₁・Ｑ₁ ²／ｎ＋ａ₂・Ｑ₂ ²＋ａ₃・Ｑ₃ ²＋ａ₄・Ｑ₄ ²）…（９）
いま、系列１に５つの膜ろ過処理ユニットがあり、そのうち１ユニットが休止状態であるとする。すなわち、ｎ₁＝０.８とする。最も簡単な流量制御として、各系列の流量を等しく設定した場合の動力の総和は、式（７）から０.２６６・Ｃ₀・Ｑ_total ²と求められた。これに対し、流量の適正化計算を実施した結果、Ｑ₁＝０.２１１・Ｑ_total，Ｑ₂＝
０.２６３・Ｑ_total，Ｑ₃＝０.２６３・Ｑ_total，Ｑ₄＝０.２６３・Ｑ_total、 との値が求められた。この場合の動力の総和は０.２６３・Ｃ₀・Ｑ_total ²となり、流量を適正化することでろ過動力を１.０％低減できた。 (Equation 9)
kW _total = C ₁ · n · Q ₁ ² + C ₂ · Q ₂ ² + C ₃ · Q ₃ ² + C ₄ · Q ₄ ²
= C ₀ · (a ₁ · Q ₁ ² / n + a ₂ · Q ₂ ² + a ₃ · Q ₃ ² + a ₄ · Q ₄ ² ) (9)
Now, it is assumed that there are five membrane filtration processing units in series 1, and one of them is in a dormant state. That is, n ₁ = 0.8. As the simplest flow rate control, the total sum of power when the flow rates of the respective lines were set equal was obtained from Equation (7) as 0.266 · C ₀ · Q _total ² . On the other hand, Q ₁ = 0.211 · Q _total , Q ₂ =
The following values were obtained: 0.263 · Q _total , Q ₃ = 0.263 · Q _total , Q ₄ = 0.263 · Q _total . The total power in this case was 0.263 · C ₀ · Q _total ² , and the filtration power could be reduced by 1.0% by optimizing the flow rate.

次に、計画水量が季節や時間ごとに変化する場合を考える。例えば計画水量を膜全体での定格値の７５％に減らした場合を考える。最も簡単な流量制御として、４系列ある膜ろ過処理装置のうち１系列を停止し、３系列のみを運転する方法がある。ａ₁〜ａ₄の値を全て等しく１.０として、系列１の流量Ｑ₁＝０とした計算を実施すると、動力の総和は
０.１８８・Ｃ₀・Ｑ_total ²と求められた。これに対し、流量の適正化計算を実施した結果、全ての系列を用いる場合の動力の総和が最も小さく、Ｑ₁＝０.１８７５・Ｑ_total，Ｑ₂＝０.１８７５・Ｑ_total，Ｑ₃＝０.１８７５・Ｑ_total，Ｑ₄＝０.１８７５・Ｑ_total、との値が求められた。この場合の動力の総和は０.１４１・Ｃ₀・Ｑ_total ²となり、流量を適正化することでろ過動力を２５％低減できた。 Next, consider the case where the planned water volume changes with the season and time. For example, consider a case where the planned water volume is reduced to 75% of the rated value of the entire membrane. As the simplest flow rate control, there is a method in which one of the four systems of membrane filtration devices is stopped and only three systems are operated. When the calculation was performed with all the values of a _{1 to} a ₄ equal to 1.0 and the flow rate Q ₁ of the series 1 was set to 0, the total sum of power was obtained as 0.188 · C ₀ · Q _total ² . On the other hand, as a result of calculating the optimization of the flow rate, the sum of the powers when using all the sequences is the smallest, Q ₁ = 0.1875 · Q _total , Q ₂ = 0.1875 · Q _total , Q ₃ = 0.1875 · Q _total , Q ₄ = 0.1875 · Q _total . The total power in this case was 0.141 · C ₀ · Q _total ² , and the filtration power could be reduced by 25% by optimizing the flow rate.

以上の例では、ろ過ポンプの動力を最小化する計算結果について述べた。この内容をまとめて図４に示す。   In the above example, the calculation result for minimizing the power of the filtration pump has been described. The contents are collectively shown in FIG.

ろ過動力は最小値でなくても、その近傍の値が得られる運転条件であれば現実的に問題の無い場合も多いため、その範囲に関する情報を運転費目標範囲４として運転条件判定部１６に与える。動力費が目標範囲内となる条件を探索する最適化演算フローの一例を図５に示す。図３との違いは、ボックス（ｃ）（ｄ）（ｅ）にて変数flagを有する点、ボックス（ｆ）での判定条件、ボックス（ｇ）での演算処理、ボックス（ｈ）（ｉ）での結果表示である。ここで、変数flagは初期値を０としている。目標範囲内となる条件が１つでも存在すれば、変数flagの値は１となり、ボックス（ｇ）や（ｉ）の処理を実行する。逆に、目標範囲内となる条件が１つも存在しない場合には、ボックス（ｈ）の処理を実行し、目標範囲の最小値Ｚ₁と最大値Ｚ₂の値を変更するメッセージを表示する。 Even if the filtering power is not the minimum value, there are many cases where there is practically no problem as long as it is an operating condition in which a value in the vicinity thereof is obtained. give. FIG. 5 shows an example of an optimization calculation flow for searching for a condition where the power cost is within the target range. The difference from FIG. 3 is that the variable flag is included in the boxes (c), (d), and (e), the determination condition in the box (f), the calculation process in the box (g), and the box (h) (i). It is a result display in. Here, the variable flag has an initial value of 0. If there is at least one condition that falls within the target range, the value of the variable flag becomes 1, and the processing of boxes (g) and (i) is executed. Conversely, if there is no condition that falls within the target range, the process of box (h) is executed, and a message for changing the minimum value Z ₁ and the maximum value Z ₂ of the target range is displayed.

図６に表示装置８の画面例を示す。表示装置８には系列ごとの流量配分７の値、あるいは系列ごとの流量配分７の値を比率に換算した値が示される。表示装置の具体的な実現手段としては、ＰＣ，計装盤，グラフィックパネル，情報携帯端末，携帯電話のいずれでも良い。   FIG. 6 shows a screen example of the display device 8. The display device 8 shows the value of the flow distribution 7 for each series or the value obtained by converting the value of the flow distribution 7 for each series into a ratio. Specific means for realizing the display device may be a PC, an instrument panel, a graphic panel, an information portable terminal, or a mobile phone.

以上の構成により、第１の実施例では複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づき、ろ過に必要な動力を目標範囲内に抑制できるような流量分配条件を計算して各系列の流量を制御するとともに、その制御値を操作員に提示することが可能となる。   With the above configuration, in the first embodiment, based on the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series, the flow distribution condition is calculated so that the power required for filtration can be suppressed within the target range. Thus, the flow rate of each series can be controlled and the control value can be presented to the operator.

図７は本発明の第２の実施例による膜ろ過処理装置の運転制御装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づいた計算により、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えを制御する装置の機能ブロック図を示す。   FIG. 7 shows the configuration of the operation control device of the membrane filtration apparatus according to the second embodiment of the present invention. The membrane filtration apparatus is calculated by calculation based on the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. The functional block diagram of the apparatus which controls the flow volume of each series and switching of a filtration and backwashing process is shown.

第１の実施例と異なり、運転条件計算部６には膜ろ過処理装置１から、過去からの差圧上昇量あるいはろ過流量減少量１０が与えられる。また、運転条件判定部１６からは膜ろ過処理装置推奨運転操作量１１が出力され、表示装置８とろ過・逆洗制御部１２に与えられる。ろ過・逆洗制御部１２は膜ろ過処理装置推奨運転操作量１１に基づいてろ過・逆洗ポンプ起動／停止信号１３を膜ろ過処理装置１に与える。それ以外の点については第１の実施例と同様の機能を有する。   Unlike the first embodiment, the operating condition calculation unit 6 is given from the membrane filtration apparatus 1 the differential pressure increase amount or the filtration flow rate decrease amount 10 from the past. Further, the membrane filtration processing device recommended operation amount 11 is output from the operation condition determination unit 16 and is given to the display device 8 and the filtration / backwash control unit 12. The filtration / backwash control unit 12 gives a filtration / backwash pump start / stop signal 13 to the membrane filtration apparatus 1 based on the recommended operation amount 11 of the membrane filtration apparatus. In other respects, it has the same function as the first embodiment.

式（１）で示したケーク抵抗Ｒｃの値は、ろ過工程の開始後次第に増大する。このケーク蓄積現象を簡単な式で表すと式（１０）となる。   The value of the cake resistance Rc shown in the equation (1) gradually increases after the start of the filtration step. When this cake accumulation phenomenon is expressed by a simple equation, equation (10) is obtained.

（数１０）
ｄＲｃ／ｄｔ＝ｃ・Ｊｖ …（１０）
ここで、ｃ：単位ろ液量に含まれるケーク抵抗成分比率（１／ｍ²）である。 (Equation 10)
dRc / dt = c · Jv (10)
Here, c is the cake resistance component ratio (1 / m ² ) contained in the unit filtrate amount.

単位ろ液量に含まれるケーク抵抗成分比率ｃは、異なった２時刻の動力費とその場合の流束Ｊｖあるいはろ過流量の変化と式（１０）に基づき決定することができる。すなわち図７の、過去からの差圧上昇量またはろ過流量減少量１０の情報により決定することができる。   The cake resistance component ratio c contained in the unit filtrate amount can be determined based on the power cost at two different times, the change in the flux Jv or the filtration flow rate in that case, and the equation (10). That is, it can be determined by the information of the differential pressure increase amount or the filtration flow rate decrease amount 10 from the past in FIG.

式（１０），式（２），式（３），式（４）から、ろ過ポンプで消費される動力は流量の関数として次式で示される。   From the equations (10), (2), (3), and (4), the power consumed by the filtration pump is expressed by the following equation as a function of the flow rate.

ここで、ｋＷｆ：ろ過ポンプの消費動力（ｋＷ），Ｄ：比例係数である。

Here, kWf: consumption power (kW) of the filtration pump, D: proportionality coefficient.

次に、逆洗モデルを式（１２），式（１３）のように仮定する。   Next, the backwash model is assumed as shown in equations (12) and (13).

（数１２）
Ｊｖｂ＝ΔＰｂ／（μ・Ｒｍ） …（１２） (Equation 12)
Jvb = ΔPb / (μ · Rm) (12)

（数１３）
Ｑｂ＝Ａ・Ｊｖｂ …（１３）
ここで、Ｊｖｂ：逆洗流束（ｍ／ｓ），ΔＰｂ：逆洗時の膜差圧（Ｐａ），Ｑｂ：逆洗流量（ｍ³／ｓ ）である。また、逆洗を開始した瞬間に膜面のケークが全量剥離すると仮定した。式（１２）と式（１３）からＪｖｂを消去すると式（１４）が得られる。 (Equation 13)
Qb = A · Jvb (13)
Here, Jvb is the backwash flux (m / s), ΔPb is the membrane differential pressure (Pa) during backwashing, and Qb is the backwash flow rate (m ³ / s). Further, it was assumed that the entire film surface peeled off at the moment when backwashing was started. When Jvb is eliminated from the equations (12) and (13), the equation (14) is obtained.

（数１４）
ΔＰｂ＝μ・Ｒｍ・Ｑｂ／Ａ …（１４）
従って、逆洗ポンプで消費される動力は逆洗流量Ｑｂの二次関数として次式で示される。 (Equation 14)
ΔPb = μ · Rm · Qb / A (14)
Therefore, the power consumed by the backwash pump is expressed by the following equation as a quadratic function of the backwash flow rate Qb.

（数１５）
ｋＷｂ＝Ｄ・Ｑｂ²・Ｒｍ …（１５）
１サイクルにおけるろ過時間をｔｆ、逆洗時間をｔｂとすると、ろ過工程と逆洗工程から構成される１サイクルでの実ろ過流量Ｑ_realは式（１６）で示される。 (Equation 15)
kWb = D · Qb ² · Rm (15)
When the filtration time in one cycle tf, and tb backwash time, the actual filtration flowrate Q _real in one cycle consists of the filtration step and the backwash step is represented by the formula (16).

式（１６）の実ろ過流量を得るために消費される動力ｋＷ_sumは式（１１）と式(１５)の和となる。

The power kW _sum consumed to obtain the actual filtration flow rate of Expression (16) is the _sum of Expression (11) and Expression (15).

式（１６）と式（１７）は、ろ過時間ｔｆ，逆洗時間ｔｂ，ろ過ポンプの流量Ｑ，逆洗ポンプの流量Ｑｂにより値が変動する。これらのうち、逆洗ポンプの流量Ｑｂ以外の項目は運転操作量として調整でき場合が多い。そこで、式（１７）で示される動力ｋＷ_sum の全系列での和ｋＷ_total を評価指標として、各系列のろ過時間ｔｆ，逆洗時間ｔｂ，ろ過ポンプの流量Ｑの値を最適化する最適化演算アルゴリズムを運転条件計算部６に備える。ただし、制約条件として式（１６）の各系列の値の総和が、式（８）に示す膜ろ過処理装置での計画水量の総和Ｑ_totalを満足することが必要である。

The values of Equation (16) and Equation (17) vary depending on the filtration time tf, the backwash time tb, the flow rate Q of the filtration pump, and the flow rate Qb of the backwash pump. Of these, items other than the flow rate Qb of the backwash pump can often be adjusted as the operation amount. Therefore, the optimization of optimizing the filtration time tf, backwash time tb, and the flow rate Q of the filtration pump for each series using the sum kW _total of all the series of power kW _{sum represented} by Expression (17) as an evaluation index. An operation algorithm is provided in the operating condition calculation unit 6. However, as a constraint condition, the sum of the values of each series in Expression (16) needs to satisfy the _total amount Q _total of the planned water amount in the membrane filtration apparatus shown in Expression (8).

最適化演算アルゴリズムには総当り法，遺伝アルゴリズム，非線形計画法，最急勾配法などの数学的手段を使っても良いし、あらかじめ設定した複数の運転パターンから最適な１つを選択する手段でも良い。上記実施例では少なくともろ過時間ｔｆと逆洗時間ｔｂとろ過ポンプの流量Ｑを適正化する一例を示したが、本発明の範囲はこのアルゴリズムに限定されない。過去の実績運転データを用いて同様の指標、すなわち実ろ過流量と動力を算出し、そのデータを基にろ過時間ｔｆ，逆洗時間ｔｂ，ろ過ポンプの流量Ｑを適正化するアルゴリズムを用いても良い。   For the optimization algorithm, mathematical means such as brute force method, genetic algorithm, nonlinear programming method, steepest gradient method, etc. may be used, or a method for selecting the optimum one from a plurality of preset operation patterns. good. In the above embodiment, an example of optimizing at least the filtration time tf, the backwash time tb, and the flow rate Q of the filtration pump has been shown, but the scope of the present invention is not limited to this algorithm. A similar index, that is, an actual filtration flow rate and power is calculated using past actual operation data, and an algorithm for optimizing the filtration time tf, the backwash time tb, and the flow rate Q of the filtration pump is used based on the data. good.

運転条件判定部１６の出力のうち、各系列のろ過時間ｔｆ，逆洗時間ｔｂは膜ろ過処理装置推奨運転操作量１１として、ろ過・逆洗制御部１２に与えられる。ろ過・逆洗制御部１２にはスイッチが含まれており、ろ過・逆洗ポンプ起動／停止信号１３を膜ろ過処理装置に与えてろ過ポンプと逆洗ポンプの制御を実施する。膜ろ過処理装置推奨運転操作量
１１は表示装置８にも与えられる。運転条件判定部１６の出力のうち、ろ過ポンプの流量Ｑは系列ごとの流量配分７として、表示装置８と流量制御装置９に与えられる。 Among the outputs of the operating condition determination unit 16, the filtration time tf and backwash time tb of each series are given to the filtration / backwash control unit 12 as the membrane filtration processing device recommended operation amount 11. The filtration / backwash control unit 12 includes a switch, and a filtration / backwash pump start / stop signal 13 is given to the membrane filtration apparatus to control the filtration pump and the backwash pump. The recommended operation amount 11 of the membrane filtration apparatus is also given to the display device 8. Among the outputs of the operating condition determination unit 16, the flow rate Q of the filtration pump is given to the display device 8 and the flow rate control device 9 as the flow rate distribution 7 for each series.

以上の構成により、第２の実施例では、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づき、必要な動力を目標範囲内に抑制できるような流量分配条件とろ過・逆洗工程の切替条件を計算して各系列の流量とろ過・逆洗工程の切替えを制御するとともに、その制御値を操作員に画面上で提示することが可能となる。   With the above configuration, in the second embodiment, based on the membrane pressure difference information of each series of membrane filtration processing apparatuses having a plurality of series, flow distribution conditions and filtration / reverse conditions that can suppress the necessary power within the target range. It is possible to calculate the switching conditions of the washing process and control the switching of the flow rate of each series and the filtration / back washing process and present the control value to the operator on the screen.

図８は本発明の第３の実施例による膜ろ過処理装置の運転制御装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づいた計算により、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えを制御する装置の機能ブロック図である。   FIG. 8 shows the configuration of the operation control device of the membrane filtration apparatus according to the third embodiment of the present invention, which is based on the calculation based on the membrane differential pressure information and the raw water quality information of each series of the membrane filtration device having a plurality of series. It is a functional block diagram of the apparatus which controls the flow volume of each series of a membrane filtration processing apparatus, and switching of a filtration and backwashing process.

第２の実施例と異なり、運転条件計算部６の入力情報として、過去からの差圧上昇量またはろ過流量減少量１０ではなく、原水濁度１４の情報を用いる。それ以外の点については第２の実施例と同様の機能を有する。   Unlike the second embodiment, information on the raw water turbidity 14 is used as input information to the operating condition calculation unit 6 instead of the differential pressure increase amount or filtration flow rate decrease amount 10 from the past. In other respects, it has the same function as the second embodiment.

第２の実施例では、過去からの差圧上昇量またはろ過流量減少量１０を用いてパラメータを同定したが、第３の実施例では単位ろ液量に含まれるケーク抵抗成分比率ｃの値を原水水質の情報に基づいて求める。このｃの値は原水濁度１４や、有機物，溶解性Ｍｎ濃度の影響を受ける。Ｃの値は、例えば原水濁度１４の値をＴｕ₀ として式（１８）で示される。 In the second embodiment, the parameter is identified using the differential pressure increase amount or the filtration flow rate decrease amount 10 from the past. In the third embodiment, the value of the cake resistance component ratio c included in the unit filtrate amount is set. Calculated based on raw water quality information. The value of c is affected by the raw water turbidity 14, the organic matter, and the soluble Mn concentration. The value of C is expressed by the equation (18), for example, with the raw water turbidity value of 14 being Tu ₀ .

（数１８）
ｃ＝ｋ₅・Ｔｕ₀ …（１８）
あるいは、膜ろ過水の濁度をＴｕｆとすると式（１９）で示され、このほうがより正確である。 (Equation 18)
c = k ₅ · Tu ₀ (18)
Alternatively, when the turbidity of the membrane filtration water is Tuf, it is expressed by Equation (19), which is more accurate.

（数１９）
ｃ＝ｋ₅・（Ｔｕ₀−Ｔｕｆ） …（１９）
紫外線吸光度Ｅ２６０やＴＯＣとして計測した有機物濃度の指標や溶解性Ｍｎ濃度との相関関係を使い、ｃの値を推算することも良い。これ以外の水質項目や水温、ｐＨなどによってもｃの値が異なることもあるが、その場合には係数ｋ₅の同定で対応可能である。このようにして、式（１１）から式（１７）までを第２の実施例と同様に計算することができる。 (Equation 19)
c = k ₅ · (Tu ₀ −Tuf) (19)
It is also possible to estimate the value of c using an index of organic substance concentration measured as ultraviolet absorbance E260 or TOC or a correlation with soluble Mn concentration. Other water quality and temperature, there is a value of c differs depending like pH, in which case it is possible to cope with the identification of the coefficients k _5. In this way, equations (11) to (17) can be calculated in the same manner as in the second embodiment.

以上の構成により、第３の実施例では、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づき、必要な動力を目標範囲内に抑制できるような流量分配条件とろ過・逆洗工程の切替条件を計算し、各系列の流量とろ過・逆洗工程の切替えを制御するとともに、その制御値を操作員に画面上で提示することが可能となる。   With the above configuration, in the third embodiment, the flow rate distribution that can suppress the necessary power within the target range based on the membrane differential pressure information and raw water quality information of each series of the membrane filtration apparatus having a plurality of series. It is possible to calculate the conditions and the switching conditions of the filtration / backwashing process, control the flow rate of each series and the switching of the filtration / backwashing process, and present the control values to the operator on the screen.

図９は本発明の第４の実施例による膜ろ過処理装置の運転制御装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づいた計算により、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えとその前段の前処理装置の運転を制御する装置の機能ブロック図である。   FIG. 9 shows the configuration of the operation control device of the membrane filtration apparatus according to the fourth embodiment of the present invention. By the calculation based on the membrane differential pressure information of each series and the raw water quality information of the membrane filtration apparatus having a plurality of series. It is a functional block diagram of the apparatus which controls the flow of each series of a membrane filtration processing apparatus, switching of a filtration and backwashing process, and operation | movement of the pre-processing apparatus of the front stage.

第３の実施例と異なり、運転条件判定部１６からは前処理装置運転操作量１５が出力され、前処理装置１７が制御される機能が付加される。原水濁度１４は前処理装置１７へ流入する原水の情報として取り扱う。それ以外の点については第３の実施例と同様の機能を有する。   Unlike the third embodiment, the operating condition determination unit 16 outputs a preprocessing device driving operation amount 15 and adds a function of controlling the preprocessing device 17. The raw water turbidity 14 is handled as information of raw water flowing into the pretreatment device 17. In other respects, it has the same function as the third embodiment.

膜ろ過処理装置１は単独で用いられることもあるが、原水を河川など表流水から取水している浄水場の場合には、凝集処理，凝集沈殿処理，凝集沈殿ろ過処理，高速繊維ろ過処理など、膜ろ過処理の膜差圧上昇を抑制する機能を有する前処理装置１７と組合せて用いられることが多い。   The membrane filtration apparatus 1 may be used alone, but in the case of a water purification plant taking raw water from surface water such as rivers, coagulation treatment, coagulation sedimentation treatment, coagulation sedimentation filtration treatment, high-speed fiber filtration treatment, etc. In many cases, it is used in combination with a pretreatment device 17 having a function of suppressing an increase in membrane differential pressure in membrane filtration treatment.

濁質は前処理装置１７でも膜ろ過処理装置１でも除去できるため、前処理装置１７で十分除去して膜ろ過処理装置１の負荷を低減する方法や、前処理装置１７の処理を軽減し、膜ろ過処理装置１に負荷をかける方法など運転方法の選択肢がありうる。第４の実施例は、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えに加え、前処理装置１７と膜ろ過処理装置１の負荷配分を適正化して、浄水場全体の処理費用の合計をあらかじめ設定した範囲内に抑制するものである。   The turbidity can be removed by either the pretreatment device 17 or the membrane filtration treatment device 1, so the method of reducing the load of the membrane filtration treatment device 1 by sufficiently removing it by the pretreatment device 17 or the treatment of the pretreatment device 17 is reduced. There may be options of operation methods such as a method of applying a load to the membrane filtration apparatus 1. In the fourth embodiment, in addition to switching the flow rate and filtration / backwashing process of each series of membrane filtration treatment devices, the load distribution of the pretreatment device 17 and the membrane filtration treatment device 1 is optimized to treat the entire water purification plant. The total cost is controlled within a preset range.

前処理装置運転操作量１５を出力するため、運転条件計算部６の中には膜ろ過処理装置１の処理を模擬するアルゴリズムが備えられる。この中身はあらかじめ蓄積していたテーブルに基づいて計算するアルゴリズムでも良いし、物理化学現象をモデル化したシミュレータによる計算アルゴリズムでも良い。前処理装置１７の処理を模擬するアルゴリズムの出力は、前処理装置の処理費用と前処理後の水の水質条件である。前処理後の水の水質条件の計算結果はその後段の膜ろ過処理装置の計算アルゴリズムに与えられ、練成計算が実施される。一方、前処理装置の処理費用は膜ろ過処理装置の処理費用と合算され、運転費目標範囲４を満足する費用であるかを運転条件判定部１６にて判定する。   In order to output the pretreatment device operation amount 15, the operation condition calculation unit 6 is provided with an algorithm for simulating the processing of the membrane filtration processing device 1. The contents may be an algorithm that is calculated based on a previously stored table, or may be a calculation algorithm by a simulator that models a physicochemical phenomenon. The output of the algorithm that simulates the treatment of the pretreatment device 17 is the treatment cost of the pretreatment device and the water quality condition after the pretreatment. The calculation result of the water quality condition after the pretreatment is given to the calculation algorithm of the subsequent membrane filtration apparatus, and the kneading calculation is performed. On the other hand, the processing cost of the pretreatment device is added to the processing cost of the membrane filtration processing device, and the operating condition determination unit 16 determines whether the cost satisfies the operating cost target range 4.

以上の構成により、第４の実施例では、原水水質の情報と、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づき、運転費を目標範囲内に抑制できるような前処理装置の運転条件と、膜ろ過処理装置の流量分配条件とろ過・逆洗工程の切替条件を計算し、前処理装置の運転操作量、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えを制御するとともに、それぞれの制御値を操作員に画面上で提示することが可能となる。   With the above configuration, in the fourth embodiment, pretreatment that can suppress the operating cost within the target range based on the raw water quality information and the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. Calculate the operating conditions of the equipment, the flow distribution conditions of the membrane filtration processing equipment and the switching conditions of the filtration / backwashing process, the operation amount of the pretreatment equipment, the flow rate of each series of the membrane filtration processing equipment and the filtration / backwashing process The control values can be controlled and the control values can be presented to the operator on the screen.

図１０は本発明の第５の実施例による膜ろ過処理装置の運転制御装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づいた計算により、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えとその前段の前処理装置の運転と排水処理装置の運転を制御する装置の機能ブロック図である。   FIG. 10 shows the configuration of the operation control device of the membrane filtration apparatus according to the fifth embodiment of the present invention. The calculation is based on the membrane differential pressure information of each series and the raw water quality information of the membrane filtration apparatus having a plurality of series. It is a functional block diagram of the apparatus which controls the flow of each series of a membrane filtration processing apparatus, the switching of a filtration and backwashing process, the operation | movement of the pre-processing apparatus of the front | former stage, and the operation | movement of a waste water treatment apparatus.

第４の実施例と異なり、運転条件判定部１６から排水処理装置運転操作量１８が出力され、排水処理装置１９が制御される機能が付加される。それ以外の点については第４の実施例と同様の機能を有する。   Unlike the fourth embodiment, the operation condition determining unit 16 outputs the wastewater treatment device operation amount 18 and adds a function of controlling the wastewater treatment device 19. The other points have the same functions as in the fourth embodiment.

膜ろ過処理装置１の逆洗工程では、高濁度の逆洗排水が発生する。この排水は排水処理装置１９により高濁度分と低濁度分の排水に分離処理されることが一般的である。このうち低濁度分の排水は原水あるいは前処理水あるいは膜ろ過水に混合される。一方、高濁度分は濃縮・脱水工程を経た汚泥となり、産業廃棄物として廃棄処分されることが多い。   In the backwashing process of the membrane filtration apparatus 1, high turbidity backwash wastewater is generated. In general, the waste water is separated into waste water having high turbidity and low turbidity by the waste water treatment device 19. Of these, low turbidity wastewater is mixed with raw water, pretreated water or membrane filtered water. On the other hand, the high turbidity content becomes sludge that has undergone a concentration / dehydration process and is often disposed of as industrial waste.

汚泥の主要成分は原水に含まれる粒子、例えば濁質が中心的であるが、前処理装置１７で凝集剤を用いる場合、汚泥に凝集剤が無視できない割合で含まれる。従って運転費として汚泥処分費まで考慮する場合には、前処理装置１７の運転条件と膜ろ過処理装置１の運転条件を排水処理装置１９の運転条件と練成した計算が必要となる。第５の実施形態は、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えに加え、前処理装置１７と膜ろ過処理装置１と排水処理装置１９の負荷配分を適正化して、浄水場全体の処理費用の合計をあらかじめ設定した範囲内に抑制するものである。   The main component of the sludge is mainly particles contained in the raw water, for example, turbidity, but when the flocculant is used in the pretreatment device 17, the flocculant is included in the sludge at a rate that cannot be ignored. Therefore, when the sludge disposal cost is taken into consideration as the operating cost, a calculation in which the operating conditions of the pretreatment device 17 and the operating conditions of the membrane filtration device 1 are combined with the operating conditions of the waste water treatment device 19 is required. In the fifth embodiment, in addition to switching the flow rate and filtration / backwashing process of each series of membrane filtration devices, the load distribution of the pretreatment device 17, the membrane filtration device 1, and the wastewater treatment device 19 is optimized, The total treatment cost of the entire water treatment plant is controlled within a preset range.

排水処理装置運転操作量１８を出力するため、運転条件計算部６の中には排水処理装置１９の処理を模擬するアルゴリズムが備えられる。この中身はあらかじめ蓄積していたテーブルに基づいて計算するアルゴリズムでも良いし、物理化学現象をモデル化したシミュレータによる計算アルゴリズムでも良い。アルゴリズムの出力項目は汚泥処分費を含む処理費用である。この処理費用は前処理装置の処理費用、および膜ろ過処理装置の処理費用と合算され、運転費目標範囲４を満足できる費用であるか運転条件判定部１６において判定される。   In order to output the operation amount 18 of the waste water treatment device, the operation condition calculation unit 6 is provided with an algorithm that simulates the processing of the waste water treatment device 19. The contents may be an algorithm that is calculated based on a previously stored table, or may be a calculation algorithm by a simulator that models a physicochemical phenomenon. The output items of the algorithm are treatment costs including sludge disposal costs. This processing cost is added to the processing cost of the pre-processing device and the processing cost of the membrane filtration processing device, and the operating condition determination unit 16 determines whether the cost can satisfy the operating cost target range 4.

以上の構成により、第５の実施例では、原水水質の情報と、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報の情報に基づき、運転費を目標範囲内に抑制できるような前処理装置の運転条件と、膜ろ過処理装置の流量分配条件とろ過・逆洗工程の切替条件と、排水処理装置の運転条件を計算し、前処理装置の運転操作量、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替え、排水処理装置の運転操作量を制御するとともに、それぞれの制御値を操作員に画面上で提示することが可能となる。   With the above configuration, in the fifth embodiment, the operating cost can be suppressed within the target range based on the raw water quality information and the information of the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. Calculate the operating conditions of the pretreatment device, the flow distribution conditions of the membrane filtration device, the switching conditions of the filtration / backwash process, and the operating conditions of the wastewater treatment device. It is possible to control the flow rate of each series and the switching of the filtration / backwash process, the operation amount of the waste water treatment device, and present the respective control values to the operator on the screen.

図１１は本発明の第６の実施例による膜ろ過処理装置の運転支援装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づいた計算により、膜ろ過処理装置の流量配分を計算して表示する装置の機能ブロック図を示す。   FIG. 11 shows the configuration of the operation support apparatus for a membrane filtration apparatus according to the sixth embodiment of the present invention. The membrane filtration apparatus is calculated by calculation based on the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. The functional block diagram of the apparatus which calculates and displays the flow volume distribution of this is shown.

第１の実施例と異なり、運転条件判定部１６から出力される系列ごとの流量配分７の情報は表示装置８のみに与えられ、自動制御は実施せず、操作員に計算結果を示す機能のみに限定される。それ以外の点については第１の実施の形態と同様の機能を有する。また、自動制御は実施しないため、膜ろ過処理装置１から与えられる各系列膜差圧２は直接回線などで与えられる必要はなく、オペレータがキーボードから入力することでも良い。さらに、運転支援装置であるため、単に適正な運転条件を出力するのみではなく、その都度オペレータが入力した設定値に対する運転費を表示する機能が付加されていることが望ましい。   Unlike the first embodiment, the information on the flow rate distribution 7 for each series output from the operating condition determination unit 16 is given only to the display device 8, and the automatic control is not performed, and only the function of showing the calculation result to the operator is provided. It is limited to. The other points have the same functions as in the first embodiment. Further, since automatic control is not performed, each series membrane differential pressure 2 given from the membrane filtration processing device 1 does not need to be given directly by a line or the like, and may be input by an operator from a keyboard. Furthermore, since it is a driving support device, it is desirable that a function for displaying the operating cost for the set value input by the operator is added in addition to simply outputting an appropriate driving condition.

図１２に表示装置８の画面例を示す。表示装置８には系列ごとの流量配分７の値、あるいは系列ごとの流量配分７の値を比率に換算した値が示される。表示装置の具体的な実現手段としては、ＰＣ，計装盤，グラフィックパネル，情報携帯端末，携帯電話のいずれでも良い。   FIG. 12 shows a screen example of the display device 8. The display device 8 shows the value of the flow distribution 7 for each series or the value obtained by converting the value of the flow distribution 7 for each series into a ratio. Specific means for realizing the display device may be a PC, an instrument panel, a graphic panel, an information portable terminal, or a mobile phone.

以上の構成により、第６の実施例では複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づき、ろ過に必要な動力を目標範囲内に抑制できるような流量分配条件を計算し、その条件を操作員に提示することが可能となる。   With the above configuration, in the sixth embodiment, the flow distribution condition is calculated so that the power required for filtration can be suppressed within the target range based on the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. The condition can be presented to the operator.

図１３は本発明の第７の実施例による膜ろ過処理装置の運転支援装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づいた計算により、膜ろ過処理装置の各系列の流量配分とろ過・逆洗工程の切替えを計算して表示する装置の機能ブロック図を示す。   FIG. 13 shows the configuration of the operation support device of the membrane filtration apparatus according to the seventh embodiment of the present invention, and the membrane filtration apparatus is calculated by calculation based on the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. The functional block diagram of the apparatus which calculates and displays the flow distribution of each series and the switching of the filtration / backwash process is shown.

第２の実施例と異なり、運転条件判定部１６から出力される系列ごとの流量配分７の情報と膜ろ過処理装置推奨運転操作量１１は表示装置８のみに与えられ、自動制御は実施せず、操作員に計算結果を示す機能のみに限定される。それ以外の点については第２の実施例と同様の機能を有する。また、自動制御は実施しないため、膜ろ過処理装置１から与えられる各系列膜差圧２は直接回線などで与えられる必要はなく、オペレータがキーボードから入力することでも良い。さらに、運転支援装置であるため、単に適正な運転条件を出力するのみではなく、その都度オペレータが入力した設定値に対する運転費を表示する機能が付加されていることが望ましい。   Unlike the second embodiment, the information on the flow rate distribution 7 for each series output from the operating condition determination unit 16 and the membrane filtration processing device recommended operation amount 11 are given only to the display device 8, and automatic control is not performed. , Limited to the function of showing the calculation result to the operator. In other respects, it has the same function as the second embodiment. Further, since automatic control is not performed, each series membrane differential pressure 2 given from the membrane filtration processing device 1 does not need to be given directly by a line or the like, and may be input by an operator from a keyboard. Furthermore, since it is a driving support device, it is desirable that a function for displaying the operating cost for the set value input by the operator is added in addition to simply outputting an appropriate driving condition.

以上の構成により、第７の実施例では、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報に基づき、必要な動力を目標範囲内に抑制できるような流量分配条件とろ過・逆洗工程の切替条件を計算し、その条件を操作員に提示することが可能となる。   With the above configuration, in the seventh embodiment, based on the membrane differential pressure information of each series of the membrane filtration processing apparatus having a plurality of series, flow distribution conditions and filtration / reverse conditions that can suppress the necessary power within the target range. It is possible to calculate the washing process switching conditions and present the conditions to the operator.

図１４は本発明の第８の実施例による膜ろ過処理装置の運転支援装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づいた計算により、膜ろ過処理装置の各系列の流量配分とろ過・逆洗工程の切替えを計算して表示する装置の機能ブロック図である。   FIG. 14 shows the configuration of the operation support device of the membrane filtration apparatus according to the eighth embodiment of the present invention, which is based on the calculation based on the membrane differential pressure information and the raw water quality information of each series of the membrane filtration apparatus having a plurality of series. It is a functional block diagram of the apparatus which calculates and displays the flow distribution of each series of a membrane filtration processing apparatus, and the switching of a filtration and backwashing process.

第３の実施例と異なり、運転条件判定部１６から出力される系列ごとの流量配分７の情報と膜ろ過処理装置推奨運転操作量１１は表示装置８のみに与えられ、自動制御は実施せず、操作員に計算結果を示す機能のみに限定される。それ以外の点については第３の実施例と同様の機能を有する。また、自動制御は実施しないため、膜ろ過処理装置１から与えられる各系列膜差圧２は直接回線などで与えられる必要はなく、オペレータがキーボードから入力することでも良い。さらに、運転支援装置であるため、単に適正な運転条件を出力するのみではなく、その都度オペレータが入力した設定値に対する運転費を表示する機能が付加されていることが望ましい。   Unlike the third embodiment, the information on the flow rate distribution 7 for each series output from the operating condition determination unit 16 and the recommended membrane operation amount 11 are given only to the display device 8, and automatic control is not performed. , Limited to the function of showing the calculation result to the operator. In other respects, it has the same function as the third embodiment. Further, since automatic control is not performed, each series membrane differential pressure 2 given from the membrane filtration processing device 1 does not need to be given directly by a line or the like, and may be input by an operator from a keyboard. Furthermore, since it is a driving support device, it is desirable that a function for displaying the operating cost for the set value input by the operator is added in addition to simply outputting an appropriate driving condition.

以上の構成により、第８の実施例では、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づき、必要な動力を目標範囲内に抑制できるような流量分配条件とろ過・逆洗工程の切替条件を計算し、その条件を操作員に提示することが可能となる。   With the above configuration, in the eighth embodiment, the flow distribution that can suppress the necessary power within the target range based on the membrane differential pressure information and raw water quality information of each series of the membrane filtration apparatus having a plurality of series. It is possible to calculate the conditions and switching conditions of the filtration / backwash process and present the conditions to the operator.

図１５は本発明の第９の実施例による膜ろ過処理装置の運転支援装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づいた計算により、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えと前段に設けられた前処理装置の運転操作量を計算して表示する装置の機能ブロック図である。   FIG. 15 shows the configuration of the operation support apparatus of the membrane filtration apparatus according to the ninth embodiment of the present invention. The calculation is based on the membrane differential pressure information and the raw water quality information of each series of the membrane filtration apparatus having a plurality of series. It is a functional block diagram of the apparatus which calculates and displays the operation amount of the flow of each series of a membrane filtration processing apparatus, the switching of a filtration and backwashing process, and the pretreatment apparatus provided in the front | former stage.

第４の実施例と異なり、運転条件判定部１６から出力される系列ごとの流量配分７の情報と膜ろ過処理装置推奨運転操作量１１と前処理装置運転操作量１５は表示装置８のみに与えられ、自動制御は実施せず、操作員に計算結果を示す機能のみに限定される。それ以外の点については第４の実施例と同様の機能を有する。また、自動制御は実施しないため、膜ろ過処理装置１から与えられる各系列膜差圧２は直接回線などで与えられる必要はなく、オペレータがキーボードから入力することでも良い。さらに、運転支援装置であるため、単に適正な運転条件を出力するのみではなく、その都度オペレータが入力した設定値に対する運転費を表示する機能が付加されていることが望ましい。   Unlike the fourth embodiment, the flow rate distribution 7 information for each series output from the operating condition determination unit 16, the membrane filtration processing device recommended operating amount 11, and the pretreatment device operating amount 15 are given only to the display device 8. However, the automatic control is not performed, and the function is limited to the function of showing the calculation result to the operator. The other points have the same functions as in the fourth embodiment. Further, since automatic control is not performed, each series membrane differential pressure 2 given from the membrane filtration processing device 1 does not need to be given directly by a line or the like, and may be input by an operator from a keyboard. Furthermore, since it is a driving support device, it is desirable that a function for displaying the operating cost for the set value input by the operator is added in addition to simply outputting an appropriate driving condition.

以上の構成により、第９の実施例では、原水水質の情報と、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報の情報に基づき、運転費を目標範囲内に抑制できるような前処理装置の運転条件と、膜ろ過処理装置の流量分配条件とろ過・逆洗工程の切替条件を計算し、その条件を操作員に提示することが可能となる。   With the above configuration, in the ninth embodiment, the operating cost can be suppressed within the target range based on the raw water quality information and the information of the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. It is possible to calculate the operating conditions of the pretreatment apparatus, the flow rate distribution conditions of the membrane filtration apparatus and the switching conditions of the filtration / backwashing process, and present the conditions to the operator.

図１６は本発明の第１０の実施例による膜ろ過処理装置の運転支援装置の構成で、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報と原水水質の情報に基づいた計算により、膜ろ過処理装置の各系列の流量とろ過・逆洗工程の切替えとその前段の前処理装置の運転操作量と排水処理装置の運転操作量を計算して表示する装置の機能ブロック図である。   FIG. 16 shows the configuration of the operation support device of the membrane filtration apparatus according to the tenth embodiment of the present invention, and the calculation based on the membrane differential pressure information and the raw water quality information of each series of the membrane filtration apparatus having a plurality of series. FIG. 4 is a functional block diagram of a device for calculating and displaying the flow rate of each series of membrane filtration processing device, switching of the filtration / backwash process, the operation amount of the pretreatment device in the preceding stage, and the operation amount of the wastewater treatment device. .

第５の実施例と異なり、運転条件判定部１６から出力される系列ごとの流量配分７の情報と膜ろ過処理装置推奨運転操作量１１と前処理装置運転操作量１５と排水処理装置運転操作量１８は表示装置８のみに与えられ、自動制御は実施せず、操作員に計算結果を示す機能のみに限定される。それ以外の点については第５の実施の形態と同様の機能を有する。また、自動制御は実施しないため、膜ろ過処理装置１から与えられる各系列膜差圧２は直接回線などで与えられる必要はなく、オペレータがキーボードから入力することでも良い。さらに、運転支援装置であるため、単に適正な運転条件を出力するのみではなく、その都度オペレータが入力した設定値に対する運転費を表示する機能が付加されていることが望ましい。   Unlike the fifth embodiment, information on the flow rate distribution 7 for each series output from the operating condition determination unit 16, the membrane filtration treatment device recommended operation amount 11, the pretreatment device operation amount 15, and the wastewater treatment device operation amount. Reference numeral 18 is given only to the display device 8, and automatic control is not performed. The other points have the same functions as in the fifth embodiment. Further, since automatic control is not performed, each series membrane differential pressure 2 given from the membrane filtration processing device 1 does not need to be given directly by a line or the like, and may be input by an operator from a keyboard. Furthermore, since it is a driving support device, it is desirable that a function for displaying the operating cost for the set value input by the operator is added in addition to simply outputting an appropriate driving condition.

以上の構成により、第１０の実施の形態では、原水水質の情報と、複数系列を有する膜ろ過処理装置の各系列の膜差圧情報の情報に基づき、運転費を目標範囲内に抑制できるような前処理装置の運転条件と、膜ろ過処理装置の流量分配条件とろ過・逆洗工程の切替条件と、排水処理装置の運転条件を計算し、その条件を操作員に提示することが可能となる。   With the above configuration, in the tenth embodiment, the operating cost can be suppressed within the target range based on the raw water quality information and the information of the membrane differential pressure information of each series of the membrane filtration apparatus having a plurality of series. It is possible to calculate operating conditions for pretreatment equipment, flow distribution conditions for membrane filtration equipment, switching conditions for filtration and backwashing processes, and operating conditions for wastewater treatment equipment, and present them to the operator. Become.

本発明の第１の実施例を示し、複数系列を有する膜ろ過処理装置の流量を制御する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 1st Example of this invention and controls the flow volume of the membrane filtration processing apparatus which has multiple series. ４系列を有する膜ろ過処理装置の説明図。Explanatory drawing of the membrane filtration processing apparatus which has 4 series. 総当り法による流量の最適化演算フロー図（運転費最小化条件探索）。Flow chart for optimization of flow rate by brute force method (search for minimizing operating costs). 膜ろ過処理装置の流量制御に対する計算結果の一覧表。Table of calculation results for flow control of membrane filtration equipment. 総当り法による流量の最適化演算フロー図（設定運転費範囲内条件探索）。Flow optimization calculation flow diagram by brute force method (condition search within set operating cost range). 膜ろ過処理装置の流量を制御する装置の画面出力例を示す説明図。Explanatory drawing which shows the example of a screen output of the apparatus which controls the flow volume of a membrane filtration processing apparatus. 本発明の第２の実施例を示し、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替えを制御する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 2nd Example of this invention and controls the switching of the flow volume of the membrane filtration processing apparatus which has multiple series, and a filtration and backwashing process. 本発明の第３の実施例を示し、原水水質の情報に基づき、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替えを制御する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 3rd Example of this invention and controls the flow volume of the membrane filtration processing apparatus which has several series, and the switching of a filtration and backwashing process based on the information of raw | natural water quality. 本発明の第４の実施例を示し、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替えとその前段の前処理装置の運転を制御する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 4th Example of this invention and controls the flow of the membrane filtration processing apparatus which has several series, the switching of a filtration and a backwashing process, and the driving | operation of the pre-processing apparatus of the front stage. 本発明の第５の実施例を示し、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替えとその前段の前処理装置の運転と排水処理装置の運転を制御する装置の機能ブロック図。The function of the apparatus which shows the 5th Example of this invention and controls the flow of the membrane filtration processing apparatus which has several series, the switching of a filtration and a backwashing process, the driving | operation of the pre-processing apparatus of the front stage, and the driving | operation of a waste water treatment apparatus Block Diagram. 本発明に第６の実施例を示し、複数系列を有する膜ろ過処理装置の流量制御を支援する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 6th Example to this invention and supports the flow control of the membrane filtration processing apparatus which has multiple series. 膜ろ過処理装置の流量制御を支援する装置の画面出力例を示す説明図。Explanatory drawing which shows the example of a screen output of the apparatus which assists the flow control of a membrane filtration processing apparatus. 本発明の第７の実施例を示し、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替制御を支援する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 7th Example of this invention and assists the switching control of the flow volume of the membrane filtration processing apparatus which has several series, and a filtration and a backwashing process. 本発明の第８の実施例を示し、原水水質の情報に基づき、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替制御を支援する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 8th Example of this invention and supports the flow control of the membrane filtration processing apparatus which has several series, and the switching control of a filtration and a backwashing process based on the information of raw | natural water quality. 本発明の第９の実施例を示し、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替えとその前段の前処理装置の運転制御を支援する装置の機能ブロック図。The functional block diagram of the apparatus which shows the 9th Example of this invention, and supports the operation | movement control of the flow volume of the membrane filtration processing apparatus which has several series, the filtration and backwashing process, and the pre-processing apparatus of the front | former stage. 本発明の第１０の実施例を示し、複数系列を有する膜ろ過処理装置の流量とろ過・逆洗工程の切替えとその前段の前処理装置の運転と排水処理装置の運転制御を支援する装置の機能ブロック図。A tenth embodiment of the present invention, which is a device that supports the flow rate of a membrane filtration processing apparatus having a plurality of series, the switching of filtration and backwashing processes, the operation of the pretreatment apparatus in the previous stage, and the operation control of the wastewater treatment apparatus Functional block diagram.

符号の説明Explanation of symbols

１…膜ろ過処理装置、２…各系列膜差圧、３…計画水量、４…運転費目標範囲、５…各系列膜ろ過処理装置運転／休止情報、６…運転条件計算部、７…系列ごとの流量配分、８…表示装置、９…流量制御装置、１０…過去からの差圧上昇量またはろ過流量減少量、
１１…膜ろ過処理装置推奨運転操作量、１２…ろ過・逆洗制御部、１３…ろ過・逆洗ポンプ起動／停止信号、１４…原水濁度、１５…前処理装置運転操作量、１６…運転条件判定部、１７…前処理装置、１８…排水処理装置運転操作量、１９…排水処理装置、２０…運転条件と運転費計算結果。 DESCRIPTION OF SYMBOLS 1 ... Membrane filtration processing apparatus, 2 ... Each series membrane differential pressure, 3 ... Planned water amount, 4 ... Operating cost target range, 5 ... Each series membrane filtration processing apparatus operation / pause information, 6 ... Operating condition calculation part, 7 ... Series Flow distribution for each, 8 ... display device, 9 ... flow control device, 10 ... differential pressure increase or filtration flow decrease from the past,
DESCRIPTION OF SYMBOLS 11 ... Membrane filtration processing device recommended operation amount, 12 ... Filtration / backwash control unit, 13 ... Filtration / backwash pump start / stop signal, 14 ... Raw water turbidity, 15 ... Pretreatment device operation amount, 16 ... Operation Condition determining unit, 17 ... pretreatment device, 18 ... wastewater treatment device operation amount, 19 ... wastewater treatment device, 20 ... operation conditions and operation cost calculation results.

Claims (10)

複数系列を有する膜ろ過処理装置の運転制御装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の膜差圧，各系列の前記膜ろ過処理装置の運転／休止情報に基づき、前記膜ろ過処理装置の系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
前記運転条件判定部の判定結果に基づき各系列の流量を制御する流量制御装置と、
前記運転条件判定部の判定結果である系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする膜ろ過処理装置の運転制御装置。 In the operation control device of the membrane filtration processing device having a plurality of series,
Based on the planned amount of water to be processed by the membrane filtration processing device, the membrane differential pressure of each membrane filtration processing device of each series, and the operation / pause information of each membrane filtration processing device of each series, for each series of the membrane filtration processing device An operating condition calculation unit for calculating flow distribution,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
A flow rate control device for controlling the flow rate of each series based on the determination result of the operating condition determination unit;
An operation control apparatus for a membrane filtration apparatus, comprising: a display device that displays distribution flow information for each series, which is a determination result of the operation condition determination unit, on a screen. 複数系列を有する膜ろ過処理装置の運転制御装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，各系列の前記膜ろ過処理装置の膜差圧および過去からの膜差圧上昇量またはろ過流量の減少量に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
前記運転条件判定部の判定結果である前記膜ろ過処理装置推奨運転操作量の計算値に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、
前記運転条件判定部の判定結果に基づき各系列の流量を制御する流量制御装置と、
前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転制御装置。 In the operation control device of the membrane filtration processing device having a plurality of series,
Planned water volume to be processed by the membrane filtration device, operation / pause information of the membrane filtration device of each series, membrane differential pressure of the membrane filtration device of each series, and the amount of increase in membrane differential pressure or filtration flow rate from the past Based on the amount of decrease, the membrane filter processing device recommended operation amount including backwash time and filtration time, the operation condition calculation unit to calculate the flow rate distribution for each series,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
Based on the calculated value of the membrane filtration treatment device recommended operation amount that is the determination result of the operation condition determination unit, a filtration / backwash control unit that controls the start and stop of each series of filtration pumps and backwash pumps,
A flow rate control device for controlling the flow rate of each series based on the determination result of the operating condition determination unit;
An operation control apparatus for a membrane filtration processing apparatus, comprising: a display device for displaying a membrane filtration treatment device recommended operation amount and a distribution flow rate information for each series as a determination result of the operation condition determination unit on a screen. 複数系列を有する膜ろ過処理装置の運転制御装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量の計算値に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、
前記運転条件判定部の判定結果に基づき各系列の流量を制御する流量制御装置と、
前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転制御装置。 In the operation control device of the membrane filtration processing device having a plurality of series,
Recommended operation of membrane filtration treatment equipment including backwash time and filtration time based on planned water volume to be treated by the membrane filtration treatment equipment, operation / pause information of the membrane filtration treatment equipment of each series, and turbidity measurement value of raw water An operation condition calculation unit for calculating an operation amount and a flow rate distribution for each series;
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
Based on the calculated value of the membrane filtration treatment device recommended operation amount that is the determination result of the operation condition determination unit, a filtration / backwash control unit that controls the start and stop of each series of filtration pumps and backwash pumps,
A flow rate control device for controlling the flow rate of each series based on the determination result of the operating condition determination unit;
An operation control apparatus for a membrane filtration processing apparatus, comprising: a display device for displaying a membrane filtration treatment device recommended operation amount and a distribution flow rate information for each series as a determination result of the operation condition determination unit on a screen. 膜ろ過処理装置の膜差圧上昇を抑制する前処理装置を備え、複数系列を有する前記膜ろ過処理装置の運転制御装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
前記運転条件判定部の判定結果である前処理装置運転操作量の計算値に基づき、前記前処理装置の運転を制御する前処理装置制御装置と、
前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量の計算値に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、
前記運転条件判定部の判定結果である流量配分の計算値に基づき各系列の流量を制御する流量制御装置と、
前記運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転制御装置。 In the operation control device of the membrane filtration processing apparatus comprising a pretreatment device that suppresses an increase in the membrane differential pressure of the membrane filtration treatment device,
Based on the planned amount of water to be processed by the membrane filtration treatment device, the operation / pause information of the membrane filtration treatment device of each series, and the measured turbidity of raw water, the pretreatment device operation amount, backwash time and filtration time are included. An operation condition calculation unit for calculating the recommended operation amount of the membrane filtration treatment device and the flow distribution for each series,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
A pre-processing device control device for controlling the operation of the pre-processing device based on a calculated value of the pre-processing device driving operation amount which is a determination result of the operating condition determination unit;
Based on the calculated value of the membrane filtration treatment device recommended operation amount that is the determination result of the operation condition determination unit, a filtration / backwash control unit that controls the start and stop of each series of filtration pumps and backwash pumps,
A flow rate control device for controlling the flow rate of each series based on the calculated value of the flow rate distribution which is the determination result of the operating condition determination unit;
A membrane filtration process comprising: a display device that displays a pretreatment device operation amount, a filtration processing device recommended operation amount, and a distribution flow rate information for each series, which are determination results of the operation condition determination unit, on a screen Operation control device of the device. 膜ろ過処理装置の膜差圧上昇を抑制する機能を有する前処理装置と、前記膜ろ過処理装置の逆洗排水を高濁度分と低濁度分に分離する排水処理装置とを備え、複数の系列を有する前記膜ろ過処理装置の運転制御装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分，排水処理装置運転操作量を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
前記運転条件判定部の判定結果である前処理装置運転操作量の計算値に基づき、前処理装置の運転を制御する前処理装置制御部と、
前記運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量の計算結果に基づき、各系列のろ過ポンプと逆洗ポンプの起動と停止を制御するろ過・逆洗制御部と、
前記運転条件判定部の判定結果である流量配分の計算値に基づき各系列の流量を制御する流量制御装置と、
前記運転条件判定部の判定結果である排水処理装置運転操作量の計算値に基づき、排水処理装置の運転を制御する排水処理装置制御部と、
前記運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報，排水処理装置運転操作量を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転制御装置。 A pretreatment device having a function of suppressing an increase in the membrane differential pressure of the membrane filtration device, and a wastewater treatment device for separating backwash wastewater of the membrane filtration device into a high turbidity component and a low turbidity component, and a plurality of In the operation control device of the membrane filtration processing device having a series of
Based on the planned amount of water to be processed by the membrane filtration treatment device, the operation / pause information of the membrane filtration treatment device of each series, and the measured turbidity of raw water, the pretreatment device operation amount, backwash time and filtration time are included. The operation condition calculation unit that calculates the recommended operation amount of the membrane filtration treatment device, the flow distribution for each series, the operation amount of the wastewater treatment device,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
Based on the calculated value of the preprocessing device driving operation amount that is the determination result of the operating condition determination unit, a preprocessing device control unit that controls the operation of the preprocessing device;
Based on the calculation result of the membrane filtration treatment device recommended operation amount that is the determination result of the operation condition determination unit, a filtration / backwash control unit that controls the start and stop of each series of filtration pumps and backwash pumps,
A flow rate control device for controlling the flow rate of each series based on the calculated value of the flow rate distribution which is the determination result of the operating condition determination unit;
A wastewater treatment device controller that controls the operation of the wastewater treatment device based on the calculated value of the wastewater treatment device operation amount that is the determination result of the operation condition determination unit;
A display device that displays on the screen the pretreatment device operation amount, the filtration processing device recommended operation amount, the distribution flow rate information for each series, and the wastewater treatment device operation amount that are the determination results of the operation condition determination unit An operation control device for a membrane filtration processing device. 複数系列を有する膜ろ過処理装置の運転支援装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の膜差圧，各系列の前記膜ろ過処理装置の運転／休止情報に基づき、前記膜ろ過処理装置の系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
該運転条件判定部の判定結果である系列毎の配分流量情報を画面に表示する表示装置とを備えたことを特徴とする膜ろ過処理装置の運転支援装置。 In the operation support device of the membrane filtration processing device having a plurality of series,
Based on the planned amount of water to be processed by the membrane filtration processing device, the membrane differential pressure of each membrane filtration processing device of each series, and the operation / pause information of each membrane filtration processing device of each series, for each series of the membrane filtration processing device An operating condition calculation unit for calculating flow distribution,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
An operation support apparatus for a membrane filtration apparatus, comprising: a display device that displays on a screen the distribution flow rate information for each series, which is a determination result of the operation condition determination unit. 複数系列を有する膜ろ過処理装置の運転支援装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，各系列の前記膜ろ過処理装置の膜差圧および過去からの膜差圧上昇量またはろ過流量の減少量に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
該運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転支援装置。 In the operation support device of the membrane filtration processing device having a plurality of series,
Planned water volume to be processed by the membrane filtration device, operation / pause information of the membrane filtration device of each series, membrane differential pressure of the membrane filtration device of each series, and the amount of increase in membrane differential pressure or filtration flow rate from the past Based on the amount of decrease, the membrane filter processing device recommended operation amount including backwash time and filtration time, the operation condition calculation unit to calculate the flow rate distribution for each series,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
An operation support apparatus for a membrane filtration processing apparatus, comprising: a display device for displaying a membrane filtration treatment device recommended operation amount as a determination result of the operation condition determination unit and distribution flow rate information for each series on a screen. 複数系列を有する膜ろ過処理装置の運転支援装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
該運転条件判定部の判定結果である膜ろ過処理装置推奨運転操作量と系列毎の配分流量情報を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転支援装置。 In the operation support device of the membrane filtration processing device having a plurality of series,
Recommended operation of membrane filtration treatment equipment including backwash time and filtration time based on planned water volume to be treated by the membrane filtration treatment equipment, operation / pause information of the membrane filtration treatment equipment of each series, and turbidity measurement value of raw water An operation condition calculation unit for calculating an operation amount and a flow rate distribution for each series;
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
An operation support apparatus for a membrane filtration processing apparatus, comprising: a display device for displaying a membrane filtration treatment device recommended operation amount as a determination result of the operation condition determination unit and distribution flow rate information for each series on a screen. 膜ろ過処理の膜差圧上昇を抑制する機能を有する前処理装置を備え、複数の系列を有する膜ろ過処理装置の運転支援装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
該運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転支援装置。 In a driving support device for a membrane filtration treatment apparatus having a plurality of systems, including a pretreatment device having a function of suppressing an increase in the membrane differential pressure of the membrane filtration treatment,
Based on the planned amount of water to be processed by the membrane filtration treatment device, the operation / pause information of the membrane filtration treatment device of each series, and the measured turbidity of raw water, the pretreatment device operation amount, backwash time and filtration time are included. An operation condition calculation unit for calculating the recommended operation amount of the membrane filtration treatment device and the flow distribution for each series,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
A membrane filtration process comprising: a display device for displaying a pretreatment device operation amount, a filtration processing device recommended operation amount, and a distribution flow rate information for each series as a determination result of the operation condition determination unit on a screen Device driving support device. 膜ろ過処理装置の膜差圧上昇を抑制する機能を有する前処理装置と、前記膜ろ過処理装置の逆洗排水を高濁度分と低濁度分に分離する排水処理装置とを備え、複数の系列を有する前記膜ろ過処理装置の運転支援装置において、
前記膜ろ過処理装置で処理すべき計画水量，各系列の前記膜ろ過処理装置の運転／休止情報，原水の濁度計測値に基づき、前処理装置運転操作量，逆洗時間とろ過時間を含んだ膜ろ過処理装置推奨運転操作量，系列毎の流量配分，排水処理装置運転操作量を計算する運転条件計算部と、
前記膜ろ過処理装置のろ過ポンプの動力費を含む運転費が、前記膜ろ過処理装置の運転目標範囲内となる条件を抽出する運転条件判定部と、
前記運転条件判定部の判定結果である前処理装置運転操作量，ろ過処理装置推奨運転操作量，系列毎の配分流量情報，排水処理装置運転操作量を画面に表示する表示装置とを
備えたことを特徴とする膜ろ過処理装置の運転支援装置。

A pretreatment device having a function of suppressing an increase in the membrane differential pressure of the membrane filtration device, and a wastewater treatment device for separating backwash wastewater of the membrane filtration device into a high turbidity component and a low turbidity component, and a plurality of In the operation support device of the membrane filtration processing device having a series of
Based on the planned amount of water to be processed by the membrane filtration treatment device, the operation / pause information of the membrane filtration treatment device of each series, and the measured turbidity of raw water, the pretreatment device operation amount, backwash time and filtration time are included. The operation condition calculation unit that calculates the recommended operation amount of the membrane filtration treatment device, the flow distribution for each series, the operation amount of the wastewater treatment device,
An operation condition determination unit that extracts a condition in which an operation cost including a power cost of the filtration pump of the membrane filtration apparatus is within an operation target range of the membrane filtration apparatus,
A display device that displays on the screen the pretreatment device operation amount, the filtration processing device recommended operation amount, the distribution flow rate information for each series, and the wastewater treatment device operation amount that are the determination results of the operation condition determination unit A driving support device for a membrane filtration processing device.

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