JP3417113B2 - Filter pond washing control device and control method using chromaticity meter - Google Patents
Filter pond washing control device and control method using chromaticity meterInfo
- Publication number
- JP3417113B2 JP3417113B2 JP01117095A JP1117095A JP3417113B2 JP 3417113 B2 JP3417113 B2 JP 3417113B2 JP 01117095 A JP01117095 A JP 01117095A JP 1117095 A JP1117095 A JP 1117095A JP 3417113 B2 JP3417113 B2 JP 3417113B2
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- Prior art keywords
- cleaning
- water
- air
- chromaticity
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
【０００１】[0001]
【産業上の利用分野】本発明は浄水場とか下水処理場の
濾過池の洗浄操作を実施する際の洗浄状態を判断して、
表面洗浄とか空気洗浄又は逆流洗浄等の洗浄時間を最適
にコントロールする洗浄制御装置及び制御方法に関する
ものである。BACKGROUND OF THE INVENTION The present invention judges the washing condition when carrying out the washing operation of a filter tank of a water purification plant or a sewage treatment plant,
The present invention relates to a cleaning control device and a control method for optimally controlling cleaning time such as surface cleaning, air cleaning, or backflow cleaning.
【０００２】[0002]
【従来の技術】一般に浄水場とか下水処理場では、除鉄
とか除マンガン用の濾過装置とか凝集沈殿、砂濾過処理
等の濾過システム、又は高度浄水処理におけるオゾン・
活性炭処理用の活性炭濾過池、更には下水処理水用の砂
濾過池等が用いられているが、通常これら各種濾過池の
洗浄は、表面洗浄とか空気洗浄及び逆流洗浄等を組み合
わせて濾層内のごみ等を洗浄水とか気泡によって追い出
す洗浄方法が採用されている。2. Description of the Related Art Generally, in a water purification plant or a sewage treatment plant, a filter device for removing iron or manganese, a filtration system such as coagulation sedimentation, sand filtration, or ozone in advanced water treatment.
Activated carbon filter basins for activated carbon treatment, and sand filter basins for sewage treatment water are used, but these various filter basins are usually washed by combining surface washing, air washing and backwashing. A cleaning method is used in which dust and the like are expelled with cleaning water or air bubbles.
【０００３】前記表面洗浄とは、図４に示したように濾
過池１内の収納した濾過層２の表面下１０ｃｍ程度の位
置に表洗管３を配置して、ポンプ５を駆動して濾過水処
理水槽６から得られる洗浄水を表洗管３からシャワー状
の水流として吹き付けて濾過層２の内表面を膨張させ、
ごみ等が出やすくする方法であり、空気洗浄とは同図の
濾過層２底部からブロワ４を利用して空気を吹き込み、
気泡の剪断力を利用して濾過層２に付着したごみを水中
に追い出す方法である。逆流洗浄とはポンプ７を駆動し
て濾過水処理水槽６から得られる洗浄水を濾過層２底部
から送り込んで洗浄する方法である。８は濾過層２から
オーバーフローした洗浄排水、９は原水である。The above-mentioned surface cleaning means, as shown in FIG. 4, a surface washing pipe 3 is arranged at a position of about 10 cm below the surface of the filtration layer 2 accommodated in the filtration basin 1 and the pump 5 is driven to perform filtration. The washing water obtained from the water treatment water tank 6 is sprayed from the surface washing pipe 3 as a shower-like water flow to expand the inner surface of the filtration layer 2,
This is a method to make it easier for dust and the like to come out, and air cleaning is to blow air using the blower 4 from the bottom of the filtration layer 2 in the same figure,
This is a method of expelling dust adhering to the filtration layer 2 into water by utilizing the shearing force of bubbles. The backwashing is a method in which the pump 7 is driven and the washing water obtained from the filtered water treated water tank 6 is sent from the bottom of the filtration layer 2 for washing. Reference numeral 8 is washing waste water overflowing from the filtration layer 2, and 9 is raw water.
【０００４】通常は上記表面洗浄と空気洗浄及び逆流洗
浄を組み合わせた洗浄操作が実施されており、表洗管３
からの水流によって濾過層２の内表面を１.５倍程度に
膨張させてから空気洗浄又は逆流洗浄を行う手段が多用
されている。Normally, a washing operation is performed by combining the above-mentioned surface washing, air washing, and backwashing.
There is often used means for expanding the inner surface of the filter layer 2 by a factor of about 1.5 with a water flow from and then performing air washing or backwashing.
【０００５】又、図５に示したように表面洗浄又は空気
洗浄による１次洗浄（イ）をＴ1分間行った後、濾過水
を用いて逆流洗浄（ロ）をＴ2分間実施する。この
（イ）（ロ）の間に同時洗浄（ハ）をＴ3分間行う場合
もある。これらの洗浄時間Ｔ1，Ｔ2，Ｔ3の各時間の設
定は、予備実験等によって洗浄効果を確認しながら事前
に決定するのが通例である。又、洗浄効果を濁度計とか
濃度計、更には連続式有機汚濁モニタ装置を利用して確
認する手段も使用されている。Further, as shown in FIG. 5, after the primary cleaning (a) by surface cleaning or air cleaning is performed for T 1 minute, a backflow cleaning (b) is performed using filtered water for T 2 minutes. In some cases, the simultaneous cleaning (C) may be performed for T 3 minutes during (A) and (B). The setting of each of these cleaning times T 1 , T 2 and T 3 is usually determined in advance while confirming the cleaning effect by preliminary experiments or the like. Further, a means for confirming the cleaning effect using a turbidity meter, a densitometer, or a continuous organic pollution monitor is also used.
【０００６】[0006]
【発明が解決しようとする課題】このような濾過池の洗
浄制御方法は制御因子がきわめて多く、実態に則して系
統的な洗浄操作を実施することが困難であって、多くは
作業者の経験に基づいた操作を実施しているのが実状で
ある。例えば前記表面洗浄とか空気洗浄及び逆流洗浄の
組み合わせ方法はきわめて多く、且つ洗浄時間もＴ1，
Ｔ2，Ｔ3の設定時間が無数に存在する。特に洗浄操作の
パラメータである洗浄時間とか洗浄方法を最適に決定す
ることは困難である。Such a cleaning control method for a filter basin has many control factors, and it is difficult to perform a systematic cleaning operation according to the actual conditions. The reality is that operations are carried out based on experience. For example, the combination of the surface cleaning, the air cleaning, and the backwashing is very many, and the cleaning time is T 1 ,
There are innumerable set times of T 2 and T 3 . In particular, it is difficult to optimally determine the cleaning time and the cleaning method that are parameters of the cleaning operation.
【０００７】更に四季を通しての水温の変化がある上、
濾過池へ流れ込む流入水の水質が変動することも多いの
で、水温による粘性の変化とか剪断力が変わることがあ
り、濾過層の表面だけが汚れているかもしくは濾過層の
内部まで汚れているかによっても洗浄条件は異なる。Furthermore, there are changes in water temperature throughout the four seasons,
Since the quality of the inflow water that flows into the filtration pond often changes, the viscosity may change due to the water temperature and the shearing force may change, depending on whether only the surface of the filter layer is dirty or the inside of the filter layer is also dirty. Washing conditions are different.
【０００８】他方で作業者が洗浄効果をリアルタイムで
確認することができず、この洗浄効果を濁度計とか濃度
計等で確認する場合には、洗浄初期に高濃度の汚れが流
出し、濁度計もしくは濃度計がスケールオーバーになっ
たり、濁度計のセル部が汚れやすくなって以降の測定精
度が低下するという難点がある。On the other hand, when the operator cannot confirm the cleaning effect in real time and confirms the cleaning effect with a turbidity meter or a densitometer, a high-concentration dirt flows out in the early stage of cleaning and becomes turbid. There are problems that the densitometer or the densitometer is scaled over, and the cell part of the turbidity meter is easily contaminated and the subsequent measurement accuracy is reduced.
【０００９】本発明は上記の問題点に鑑み、濾過池の洗
浄を制御する因子として色度計を採用したことにより、
実態に則して系統的な洗浄操作を実施することができる
濾過池洗浄制御装置及び制御方法を提供することを目的
とするものである。In view of the above problems, the present invention adopts a chromaticity meter as a factor for controlling the cleaning of the filter basin,
It is an object of the present invention to provide a filter basin cleaning control device and a control method capable of performing a systematic cleaning operation according to the actual situation.
【００１０】[0010]
【課題を解決するための手段】本発明は上記の目的を達
成するために、濾過水処理水槽から得られる洗浄水を濾
過池中の濾過層の内表面に吹付ける表面洗浄系の管路
と、該洗浄水を濾過池底部から送り込んで洗浄する逆流
洗浄系の管路と、ブロワを利用して濾過池の底部から空
気を吹き込む空気洗浄系の管路と、洗浄水の排水路とを
具備して成る濾過池洗浄装置において、上記濾過水処理
水槽に第１の色度計を配備するとともに洗浄水の排水路
に第２の色度計を配備し、この第１，第２の色度計によ
って測定された色度値と、前記洗浄水流量及び洗浄用空
気流量とに基づいて、濾過層に対する洗浄水用の管路と
空気洗浄用の管路の開閉制御を実施するようにした濾過
池洗浄制御装置を提供する。前記第１，第２の色度計と
して、ワイパ洗浄、薬液洗浄機能付きの色度計を用いて
いる。In order to achieve the above object, the present invention provides a surface cleaning system conduit for spraying cleaning water obtained from a filtered water treatment water tank onto the inner surface of a filtration layer in a filtration pond. A backflow cleaning system pipe for feeding the cleaning water from the bottom of the filter basin for cleaning, an air cleaning system pipe for blowing air from the bottom of the filter basin using a blower, and a drainage channel for the cleaning water In the filter pond cleaning device configured as described above, a first chromaticity meter is provided in the filtered water treatment water tank, and a second chromaticity meter is provided in the drainage channel of the cleaning water. Filtration so as to perform opening / closing control of the washing water pipe and the air washing pipe with respect to the filtration layer based on the chromaticity value measured by a meter and the washing water flow rate and the washing air flow rate. A pond cleaning control device is provided. As the first and second colorimeters, colorimeters with wiper cleaning and chemical cleaning functions are used.
【００１１】更に前記第１，第２の色度計によって測定
された色度値と、前記洗浄水流量及び洗浄用空気流量と
に基づいて、濾過池の膨張時間（立上げ時間）、表面洗
浄又は空気洗浄を行う時間、逆流洗浄を行う時間、同時
洗浄の時間を決定して洗浄水用の管路と空気洗浄用の管
路の開閉制御を実施するようにした色度計を用いた濾過
池洗浄制御方法を提供する。Further, based on the chromaticity values measured by the first and second chromaticity meters and the flow rates of the cleaning water and the cleaning air, the expansion time (startup time) of the filter basin and the surface cleaning are performed. Alternatively, a filtration using a colorimeter that determines the time for air washing, the time for backwashing, and the time for simultaneous washing to control the opening and closing of the washing water pipeline and the air washing pipeline. A pond cleaning control method is provided.
【００１２】[0012]
【作用】かかる制御装置及び方法によれば、濾過水処理
水槽から得られる洗浄水が表面洗浄系の管路を介して濾
過層の内表面に吹付けられ、逆流洗浄系の管路を介して
洗浄水が濾過池底部から送り込まれて濾過層の洗浄が行
われる。これと併用して濾過池の底部から空気を吹き込
むことによって気泡の剪断力を利用して濾過層に付着し
たごみを水中に追い出し、洗浄水を排水路から流出す
る。このような洗浄操作時において排水路の色度と濾過
水処理水槽の色度が第１，第２の色度計によって計測さ
れ、更に逆流洗浄水の洗浄水流量、空気洗浄系の空気流
量を用いて各操作時間のファジイ推論による決定が行わ
れ、洗浄水用の管路と空気洗浄用の管路の開閉制御が実
施される。According to such a control device and method, the cleaning water obtained from the filtered water treatment water tank is sprayed onto the inner surface of the filtration layer through the pipe line of the surface cleaning system, and is passed through the pipe line of the backwash system. The washing water is sent from the bottom of the filter pond to wash the filter layer. In combination with this, air is blown from the bottom of the filtration pond to expel the dust adhering to the filtration layer into the water by utilizing the shearing force of the bubbles, and the wash water is discharged from the drainage channel. During such a washing operation, the chromaticity of the drainage channel and the chromaticity of the filtered water treatment water tank are measured by the first and second chromaticity meters, and the flow rate of the backwash water and the air flow rate of the air washing system are measured. The fuzzy inference for each operation time is used to determine the operating time, and the opening / closing control of the washing water line and the air washing line is performed.
【００１３】上記動作時における洗浄制御のパターン
は、濾過池の膨張時間Ｔ1（立上げ時間）、表面洗浄又
は空気洗浄を行う時間Ｔ2、逆流洗浄を行う時間Ｔ4、同
時洗浄の時間Ｔ3のように設定され、この洗浄制御のパ
ターンによって濾過層の洗浄と排水が実施される。The cleaning control pattern during the above operation is as follows: expansion time T 1 (rise time) of the filter, time T 2 for surface cleaning or air cleaning, time T 4 for backflow cleaning, time T for simultaneous cleaning. The filter layer is set as shown in FIG. 3, and the filter layer is cleaned and drained according to this cleaning control pattern.
【００１４】[0014]
【実施例】以下、本発明にかかる色度計を用いた濾過池
洗浄制御装置及び制御方法の具体的な実施例を、前記従
来の構成部分と同一の構成部分に同一の符号を付して詳
述する。図１は本発明の実施例を全体的に示す概要図で
あり、先ず構成を説明すると、図中の１は濾過池、６は
濾過水処理水槽、１０は制御装置であり、この濾過池１
と濾過水処理水槽６との間には表面洗浄系の管路１１と
逆流洗浄系の管路１２とが配設されている。１３は電動
弁、１４，１５は流量計である。EXAMPLES Specific examples of a filter pond cleaning control device and control method using a colorimeter according to the present invention will be described with reference to the same components as those of the above-mentioned conventional components. Detailed description. FIG. 1 is a schematic view showing an embodiment of the present invention as a whole. First, in the figure, 1 is a filter basin, 6 is a filtered water treatment water tank, and 10 is a controller.
A pipe line 11 for a surface cleaning system and a pipe line 12 for a backflow cleaning system are provided between and the filtered water treatment water tank 6. Reference numeral 13 is a motorized valve, and 14 and 15 are flowmeters.
【００１５】上記濾過池１内には濾過層２ａ，２ｂが形
成されていて、該濾過層２ａ内に前記表面洗浄系の管路
１１に連結された表洗管３が配置されている。１６は空
気洗浄系の管路、４はブロワ、１７は電動弁、１８は流
量計、１９は濾過池１の底部に配置された空気吹出口、
２０は洗浄水の排水路である。Filter beds 2a and 2b are formed in the filter basin 1, and a surface washing pipe 3 connected to a pipe line 11 of the surface cleaning system is arranged in the filter layer 2a. Reference numeral 16 is a pipe line for an air cleaning system, 4 is a blower, 17 is an electric valve, 18 is a flow meter, 19 is an air outlet arranged at the bottom of the filter basin 1,
Reference numeral 20 is a drainage channel for washing water.
【００１６】前記濾過水処理水槽６には第１の色度計Ｃ
2が配備され、排水路２０に第２の色度計Ｃ1が配備され
ていて、この第１，第２の色度計Ｃ2とＣ1によって測定
された色度値〔Ｃ2〕〔Ｃ1〕が制御装置１０に入力され
ている。又、表面洗浄系の管路１１と逆流洗浄系の管路
１２にそれぞれ設けられた前記流量計１４，１５によっ
て測定された洗浄水流量Ｑと流量計１８によって測定さ
れた洗浄用空気流量ｑとが同様に制御装置１０に入力さ
れている。制御装置１０は上記各入力信号から電動弁１
３と電動弁１７に開閉制御を実施するようになってい
る。The filtered water treatment tank 6 has a first colorimeter C.
2 is provided, and the second chromaticity meter C 1 is provided in the drainage channel 20, and the chromaticity value [C 2 ] [C 2 ] measured by the first and second chromaticity meters C 2 and C 1 C 1 ] is input to the control device 10. Further, a flow rate Q of cleaning water measured by the flowmeters 14 and 15 provided in the pipeline 11 for the surface cleaning system and a pipeline 12 for the backwash system, and a cleaning air flow rate q measured by the flowmeter 18. Is similarly input to the control device 10. The control device 10 controls the motor-operated valve 1 based on the input signals.
3 and the motor-operated valve 17 are controlled to be opened and closed.
【００１７】尚、本実施例では第１，第２の色度計Ｃ2
と色度計Ｃ1として、ワイパ洗浄、薬液洗浄機能付きの
色度計を用いており、この色度計Ｃ2と色度計Ｃ1によっ
て洗浄効果の確認を行うデータを得ていることが本実施
例の特徴となっている。In this embodiment, the first and second chromaticity meters C 2
And a color meter C 1, wiper cleaning, uses a colorimeter with chemical cleaning function, that are getting data to check the cleaning effect by the colorimeter C 2 and the chromaticity meter C 1 This is a feature of this embodiment.
【００１８】本実施例の作用を以下に説明する。基本的
な操作は従来と同様に濾過水処理水槽６から得られる洗
浄水を表面洗浄系の管路１１を介して表洗管３からシャ
ワー状の水流として吹き付けて濾過層２ａ，２ｂの内表
面を膨張させ、ごみ等が出やすくしてから逆流洗浄系の
管路１２を用いて濾過水処理水槽６から得られる洗浄水
を濾過池１底部から送り込んで洗浄する。これと併用し
てブロワ４を利用して濾過池１の底部から空気吹出口１
９を介して空気を吹き込み、気泡の剪断力を利用して濾
過層２ａ，２ｂに付着したごみを水中に追い出す。洗浄
水は排水路２０から流出する。The operation of this embodiment will be described below. The basic operation is the same as in the prior art, in which the cleaning water obtained from the filtered water treatment water tank 6 is sprayed as a shower-like water flow from the surface cleaning pipe 3 through the surface cleaning system pipe 11 to form the inner surface of the filtration layers 2a, 2b. Is expanded to easily generate dust and the like, and then the cleaning water obtained from the filtered water treatment water tank 6 is sent from the bottom of the filter basin 1 to be cleaned using the backflow cleaning system pipe line 12. In addition to this, the blower 4 is used to connect the air outlet 1 from the bottom of the filter basin 1.
Air is blown in through 9 to expel the dust attached to the filtration layers 2a and 2b into the water by utilizing the shearing force of the bubbles. The wash water flows out from the drainage channel 20.
【００１９】本実施例では、このような洗浄操作とし
て、（１）表面洗浄系の管路１１と逆流洗浄系の管路１
２とを利用した「表面洗浄＋逆流洗浄」及び（２）空気
洗浄系の管路１６と逆流洗浄系の管路１２とを利用した
「空気洗浄と逆流洗浄」の２系統に大別される。そして
該２系統のそれぞれにおいて、排水路２０の色度
〔Ｃ1〕、濾過水処理水槽６の色度〔Ｃ2〕、逆流洗浄水
の洗浄水流量Ｑ、空気洗浄系の管路１６の空気流量ｑを
用いて制御装置により各操作時間のファジイ推論による
決定を行い、電動弁１３，１７の開閉状態を制御して洗
浄水流量Ｑと空気流量ｑを制御する。排水路２０内の排
水は濁質、鉄、マンガン成分等により茶褐色系統の色度
成分が主である。従って洗浄効果が上がれば排水路２０
の色度〔Ｃ1〕が低下する。In this embodiment, as such a cleaning operation, (1) the surface cleaning system pipeline 11 and the backflow cleaning system pipeline 1 are used.
2 and "surface cleaning + backflow cleaning" and (2) "air cleaning and backflow cleaning" using the air cleaning system pipeline 16 and the backflow cleaning system pipeline 12 are roughly divided into two systems. . And in each of the two systems, the chromaticity of the drainage channel 20 [C 1], the chromaticity of filtrate treated water tank 6 [C 2], the washing water flow rate Q of the backwash water, air, in line 16 of the air cleaning system The control device determines each operation time by fuzzy reasoning using the flow rate q, controls the open / closed states of the motor-operated valves 13 and 17, and controls the wash water flow rate Q and the air flow rate q. The effluent in the drainage channel 20 is mainly a brownish chromaticity component due to turbidity, iron, manganese components and the like. Therefore, if the cleaning effect improves, the drainage channel 20
The chromaticity [C 1 ] of the above decreases.
【００２０】上記動作時における洗浄制御のパターン
は、図２に示したように濾過池１の膨張時間Ｔ1（立上
げ時間）、表面洗浄又は空気洗浄を行う時間Ｔ2、逆流
洗浄を行う時間Ｔ4、同時洗浄の時間Ｔ3のように設定さ
れていて、この洗浄制御のパターンによって濾過層２
ａ，２ｂの洗浄と排水を実施する。このような濾過層２
ａ，２ｂの洗浄時において、排水路２０の色度計Ｃ1で
測定された色度値〔Ｃ1〕と濾過水処理水槽６の色度計
Ｃ2で測定された色度値〔Ｃ2〕とが図２中に図示した関
係にある。As shown in FIG. 2, the pattern of the cleaning control during the above operation is the expansion time T 1 (start-up time) of the filter basin 1, the time T 2 for surface cleaning or air cleaning, and the time for backflow cleaning. T 4 and the simultaneous cleaning time T 3 are set, and according to this cleaning control pattern, the filtration layer 2
Clean and drain a and 2b. Such a filter layer 2
a, during 2b washing, color meter measured chromaticity values C 1 [C 1] and the measured chromaticity value colorimeter C 2 of the filtration water treatment water tank 6 of the drainage channel 20 [C 2 ] Has the relationship illustrated in FIG.
【００２１】従って本実施例では色度値〔Ｃ1〕と色度
値〔Ｃ2〕の関係を利用して、図２に示した各洗浄操作
時間（Ｔ1〜Ｔ4，洗浄総時間Ｔt）をファジイ推論を利
用して決定する。Therefore, in the present embodiment, the relationship between the chromaticity value [C 1 ] and the chromaticity value [C 2 ] is utilized to make each cleaning operation time (T 1 to T 4 , total cleaning time T shown in FIG. 2). t ) is determined using fuzzy reasoning.
【００２２】更に四季の水温とか流入水の水質変化に応
じて逆流洗浄流量とか空気洗浄風量の最適化を行う。洗
浄開始信号は、濾過池の損失水頭である水位が上限に達
した時か、又は濾過水の水質を図外の紫外線吸光度測定
手段で測定して、ＵＶ信号が上限に達した時の何れか早
い方を採用する。Further, the backwashing flow rate and the air washing air flow rate are optimized according to the water temperature of the four seasons or the change of the inflowing water quality. The washing start signal is either when the water level, which is the head loss of the filtration pond, reaches the upper limit, or when the water quality of the filtered water is measured by an ultraviolet absorbance measuring means (not shown) and the UV signal reaches the upper limit. Adopt the earlier one.
【００２３】図３によって具体的な制御フローを示す。
先ずステップ100により洗浄総時間Ｔtを決定してからス
テップ101で立上げ時間Ｔ1を決定する。ステップ102で
は空気洗浄又は表面洗浄時間Ｔ2を決定し、ステップ103
で逆流洗浄時間Ｔ4を決定する。このステップ101,102,1
03は前記したファジイ推論を利用して決定する。FIG. 3 shows a specific control flow.
First, the total cleaning time T t is determined in step 100, and then the start-up time T 1 is determined in step 101. In step 102, the air cleaning or surface cleaning time T 2 is determined, and step 103
The backwashing time T 4 is determined by. This step 101, 102, 1
03 is determined using the fuzzy inference described above.
【００２４】次にステップ104によって同時洗浄の時間
Ｔ3を決定し、ステップ105で逆流洗浄水の流量を調整
し、ステップ106で洗浄用空気の風量ｑを調整して洗浄
操作を行う。Next, in step 104, the time T 3 for simultaneous cleaning is determined, in step 105 the flow rate of the backwash water is adjusted, and in step 106 the air volume q of the cleaning air is adjusted to perform the cleaning operation.
【００２５】[0025]
【発明の効果】以上詳細に説明したように、本発明によ
れば濾過池の洗浄操作時に、排水路の色度と濾過水処理
水槽の色度を各色度計によって計測し、更に逆流洗浄水
の洗浄水流量、空気洗浄系の空気流量を用いてファジイ
推論によって各操作時間を決定し、洗浄水用の管路と空
気洗浄用の管路の開閉制御を実施したことにより、実態
に則して系統的な洗浄操作を実施することが可能とな
り、洗浄操作のパラメータである洗浄時間とか洗浄方法
が最適に選択されて、単に作業者の経験に基づいた操作
と比較して洗浄効果を挙げることができる。洗浄効果は
作業者がリアルタイムで確認することができる。As described in detail above, according to the present invention, the chromaticity of the drainage channel and the chromaticity of the filtered water treatment water tank are measured by each chromaticity meter during the washing operation of the filter basin, and the backwash water is further washed. Each operation time was determined by fuzzy inference using the wash water flow rate and the air flow rate of the air wash system, and the opening and closing control of the wash water pipe and the air wash pipe line was performed, and in accordance with the actual situation. It is possible to perform a systematic cleaning operation, and the cleaning time and the cleaning method that are parameters of the cleaning operation are optimally selected, and the cleaning effect is improved compared to the operation based on the experience of the operator. You can The cleaning effect can be confirmed in real time by the operator.
【００２６】本発明によれば洗浄排水の水質を色度で代
表することで高濃度から低濃度までの広い範囲の汚れに
対応可能であり、洗浄の頻度を低減させて濾過継続時間
の長期化を可能とし、且つ洗浄水としての濾過水の使用
量を減少するとともに洗浄時間の短縮をはかることがで
きる。更に四季を通しての水温の変化とか濾過池へ流れ
込む流入水の水質が変動して粘性の変化とか剪断力が変
わっても対処可能であり、且つ濾過層の汚れの程度に応
じて洗浄条件を変えることも可能となる。According to the present invention, it is possible to deal with a wide range of stains from high concentration to low concentration by representing the water quality of the cleaning wastewater by the chromaticity, reducing the frequency of cleaning and extending the duration of filtration. In addition, it is possible to reduce the amount of filtered water used as washing water and shorten the washing time. Furthermore, it is possible to deal with changes in the water temperature throughout the four seasons, changes in the water quality of the inflow water flowing into the filtration pond, and changes in the shearing force, and it is also possible to change the cleaning conditions according to the degree of contamination of the filtration layer. Will also be possible.
【００２７】以上説明したように、本発明は各種濾過池
（濾過装置を含む）の洗浄を制御する因子として色度計
を採用したことにより、実態に則して系統的な洗浄操作
を行うことができる濾過池洗浄制御装置及び制御方法を
提供する。As described above, the present invention employs a chromaticity meter as a factor for controlling the cleaning of various filter basins (including the filter), so that a systematic cleaning operation can be performed in accordance with the actual conditions. Provided are a filter basin cleaning control device and a control method.
【図１】本発明にかかる濾過池洗浄制御装置の具体的な
実施例を全体的に示す概要図。FIG. 1 is a schematic diagram generally showing a specific embodiment of a filter pond cleaning control device according to the present invention.
【図２】本実施例の制御例のパターンを示すグラフ。FIG. 2 is a graph showing a pattern of a control example of this embodiment.
【図３】本実施例の制御の実際を示すフロー図。FIG. 3 is a flowchart showing the actual control of the present embodiment.
【図４】従来の濾過池の洗浄方法の実際例を示す概要
図。FIG. 4 is a schematic diagram showing an actual example of a conventional method for cleaning a filter basin.
【図５】従来の洗浄方法における制御例のパターンを示
すグラフ。FIG. 5 is a graph showing a pattern of a control example in a conventional cleaning method.
１…濾過池 ２ａ，２ｂ…濾過層 ３…表洗管 ４…ブロワ ６…濾過水処理水槽 １０…制御装置 １１…表面洗浄系の管路 １２…逆流洗浄系の管路 １３，１７…電動弁 １４，１５，１８…流量計 １６…空気洗浄系の管路 １９…空気吹出口 ２０…排水路 1 ... Filter pond 2a, 2b ... filtration layer 3 ... Surface wash pipe 4 ... Blower 6 ... Filtered water treatment tank 10 ... Control device 11 ... Surface cleaning line 12 ... Backwash line 13, 17 ... Motorized valve 14, 15, 18 ... Flowmeter 16 ... Air cleaning system pipeline 19 ... Air outlet 20 ... Drainage channel
Claims (3)
過池中の濾過層の内表面に吹付ける表面洗浄系の管路
と、該洗浄水を濾過池底部から送り込んで洗浄する逆流
洗浄系の管路と、ブロワを利用して濾過池の底部から空
気を吹き込む空気洗浄系の管路と、洗浄水の排水路とを
具備して成る濾過池洗浄装置において、 上記濾過水処理水槽に第１の色度計を配備するとともに
洗浄水の排水路に第２の色度計を配備し、この第１，第
２の色度計によって測定された色度値と、前記洗浄水流
量及び洗浄用空気流量とに基づいて、濾過層に対する洗
浄水用の管路と空気洗浄用の管路の開閉制御を実施する
ようにしたことを特徴とする色度計を用いた濾過池洗浄
制御装置。1. A pipe for a surface cleaning system for spraying cleaning water obtained from a filtered water treatment tank onto the inner surface of a filtration layer in a filtration pond, and a backflow cleaning system for feeding the cleaning water from the bottom of the filtration pond for cleaning. In the filter pond cleaning device, which comprises a pipe for cleaning air, a pipe for an air cleaning system that blows air from the bottom of the filter using a blower, and a drain for the cleaning water, The first chromaticity meter is provided, and the second chromaticity meter is provided in the drainage channel of the washing water. The chromaticity value measured by the first and second chromaticity meters, the washing water flow rate, and the washing A filter pond cleaning control device using a chromaticity meter, characterized in that opening / closing control of a cleaning water pipe and an air cleaning pipe with respect to a filter layer is performed based on a flow rate of air for use.
洗浄、薬液洗浄機能付きの色度計を用いた請求項１記載
の色度計を用いた濾過池洗浄制御装置。2. A filter pond cleaning control device using a chromaticity meter according to claim 1, wherein a chromaticity meter with wiper cleaning and chemical cleaning functions is used as the first and second chromaticity meters.
過池中の濾過層の内表面に吹付ける表面洗浄系の管路
と、該洗浄水を濾過池底部から送り込んで洗浄する逆流
洗浄系の管路と、ブロワを利用して濾過池の底部から空
気を吹き込む空気洗浄系の管路と、洗浄水の排水路とを
具備して成る濾過池洗浄装置において、 上記濾過水処理水槽に第１の色度計を配備するとともに
洗浄水の排水路に第２の色度計を配備し、この第１，第
２の色度計によって測定された色度値と、前記洗浄水流
量及び洗浄用空気流量とに基づいて、濾過池の膨張時間
（立上げ時間）、表面洗浄又は空気洗浄を行う時間、逆
流洗浄を行う時間、同時洗浄の時間を決定して洗浄水用
の管路と空気洗浄用の管路の開閉制御を実施するように
したことを特徴とする色度計を用いた濾過池洗浄制御方
法。3. A pipe line of a surface cleaning system for spraying cleaning water obtained from a filtered water treatment water tank onto the inner surface of a filtration layer in a filtration pond, and a backflow cleaning system for feeding the cleaning water from the bottom of the filtration pond for cleaning. In the filter pond cleaning device, which comprises a pipe for cleaning air, a pipe for an air cleaning system that blows air from the bottom of the filter using a blower, and a drain for the cleaning water, The first chromaticity meter is provided, and the second chromaticity meter is provided in the drainage channel of the washing water. The chromaticity value measured by the first and second chromaticity meters, the washing water flow rate, and the washing Based on the flow rate of air for cleaning, the expansion time (start-up time) of the filter, the time for surface cleaning or air cleaning, the time for backflow cleaning, and the time for simultaneous cleaning are determined to determine the pipeline and air for cleaning water. A chromaticity meter is used that controls the opening and closing of the cleaning pipeline. Filtration pond cleaning control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01117095A JP3417113B2 (en) | 1995-01-27 | 1995-01-27 | Filter pond washing control device and control method using chromaticity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01117095A JP3417113B2 (en) | 1995-01-27 | 1995-01-27 | Filter pond washing control device and control method using chromaticity meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08196813A JPH08196813A (en) | 1996-08-06 |
| JP3417113B2 true JP3417113B2 (en) | 2003-06-16 |
Family
ID=11770585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01117095A Expired - Fee Related JP3417113B2 (en) | 1995-01-27 | 1995-01-27 | Filter pond washing control device and control method using chromaticity meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3417113B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11290614A (en) * | 1998-04-14 | 1999-10-26 | Meidensha Corp | Measuring instrument |
| JPH11333213A (en) * | 1998-05-29 | 1999-12-07 | Meidensha Corp | Apparatus and method for washing control of filtration basin |
| KR100759985B1 (en) * | 2006-09-29 | 2007-09-19 | 주식회사 그레넥스 | Sand filering apparatus and cleaning method for the same |
| CN101979786B (en) * | 2010-11-04 | 2012-05-02 | 张茂兴 | Multifunctional water saver |
| JP6599096B2 (en) * | 2014-11-25 | 2019-10-30 | 水ｉｎｇ株式会社 | Filtration basin cleaning method and water treatment apparatus |
| CN111908596A (en) * | 2020-08-05 | 2020-11-10 | 安徽华骐环保科技股份有限公司 | Method for preventing filter material from losing during backwashing of Biological Aerated Filter (BAF) |
-
1995
- 1995-01-27 JP JP01117095A patent/JP3417113B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08196813A (en) | 1996-08-06 |
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