JP6918754B2 - MBR plant management equipment, MBR plant cleaning chemicals ordering system, and MBR plant chemicals ordering method - Google Patents
MBR plant management equipment, MBR plant cleaning chemicals ordering system, and MBR plant chemicals ordering method Download PDFInfo
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- 239000000126 substance Substances 0.000 title claims description 350
- 238000004140 cleaning Methods 0.000 title claims description 192
- 238000000034 method Methods 0.000 title claims description 20
- 238000007726 management method Methods 0.000 claims description 124
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 121
- 239000012528 membrane Substances 0.000 claims description 83
- 238000000926 separation method Methods 0.000 claims description 45
- 238000009472 formulation Methods 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 30
- 230000007704 transition Effects 0.000 claims description 25
- 230000008859 change Effects 0.000 claims description 24
- 239000010802 sludge Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000004907 flux Effects 0.000 claims description 16
- 238000005273 aeration Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000013439 planning Methods 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- 238000007654 immersion Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000012384 transportation and delivery Methods 0.000 description 5
- 239000005708 Sodium hypochlorite Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 235000006408 oxalic acid Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009118 appropriate response Effects 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Description
本発明は、ＭＢＲプラントの管理装置、ＭＢＲプラントの洗浄薬液発注システム及びＭＢＲプラントの薬液発注方法に関する。 The present invention relates to an MBR plant management device, an MBR plant cleaning chemical ordering system, and an MBR plant chemical ordering method.
特許文献１には、浸漬型膜分離装置に備えた膜カートリッジの駆動圧力と透過水量に基づいて交換時期を判断し、交換用の膜カートリッジを発注処理する浸漬型膜分離装置の維持管理方法が提案されている。
当該維持管理方法は、膜カートリッジの膜面に作用する駆動圧及び処理水取出系を流れる透過水量の測定値を指標として、予め経験則として求めた駆動圧力および透過水量と浸漬型膜分離装置の運転状況および活性汚泥の性状との相関データに当該指標を適用することにより、浸漬型膜分離装置の運転状況および活性汚泥の性状を判断し、判断結果に基づいて薬液洗浄時期や膜カートリッジの交換の要否を決定し、判断結果および決定を現地維持管理業者に通信回線を通して指示するとともに、交換用の膜カートリッジの配送を部材センタに通信回線を通して指示するように構成され、浸漬型膜分離装置の運転状況および活性汚泥の性状の判断処理を中央監視センタのコンピュータで行なうことにより、浸漬型膜分離装置を備えた各水処理施設の稼動状態が集中監視できるように構成されている。 The maintenance method uses the measured values of the driving pressure acting on the membrane surface of the membrane cartridge and the amount of permeated water flowing through the treated water extraction system as indexes, and the driving pressure and the amount of permeated water obtained in advance as an empirical rule and the immersion type membrane separation device. By applying the index to the correlation data between the operating status and the properties of the active sludge, the operating status of the immersion type membrane separation device and the properties of the active sludge are judged, and based on the judgment result, the chemical solution cleaning time and the replacement of the membrane cartridge are performed. The immersion type membrane separation device is configured to determine the necessity of the above, instruct the local maintenance contractor through the communication line, and instruct the member center to deliver the replacement membrane cartridge through the communication line. By using the computer of the central monitoring center to determine the operating status and the properties of active sludge, the operating status of each water treatment facility equipped with an immersion type membrane separation device can be centrally monitored.
しかし、従来の浸漬型膜分離装置の維持管理方法は、経験則に基づき得られた相関データに基づいて薬液洗浄時期や膜カートリッジの交換の要否を決定するため、経験則から外れた非定常な状況、例えば急激に膜間差圧が上昇するような状況に適切に対応することができないという問題があった。 However, the conventional maintenance method of the immersion type membrane separation device is unsteady, which deviates from the empirical rule because it determines the timing of chemical cleaning and the necessity of replacing the membrane cartridge based on the correlation data obtained based on the empirical rule. There is a problem that it is not possible to appropriately cope with such a situation, for example, a situation in which the intermembrane differential pressure rises sharply.
また、膜分離装置を用いたＭＢＲプラントでは、通常、複数の水処理系統を備えているが、従来の浸漬型膜分離装置の維持管理方法によれば、経験則に基づき１月から２月ごとの定められた所定運転時間の終期に膜間差圧が上昇すると一律に薬液洗浄時期であると判断されることになり、各系統の膜分離装置に対する薬液洗浄時期が重なる場合に備えて、洗浄用薬液の在庫を過剰に抱える必要があるという問題もあった。 In addition, an MBR plant using a membrane separation device is usually equipped with a plurality of water treatment systems, but according to the conventional maintenance method of the immersion type membrane separation device, every January to February based on an empirical rule. If the differential pressure between the membranes rises at the end of the specified predetermined operation time, it is uniformly judged that it is the chemical cleaning time, and cleaning is performed in case the chemical cleaning time for the membrane separation device of each system overlaps. There was also the problem that it was necessary to hold an excessive inventory of chemicals.
本発明の目的は、上述した問題に鑑み、非定常な状況が生じても適切な洗浄時期を策定でき、洗浄用薬液の過剰な在庫を回避可能なＭＢＲプラントの管理装置、ＭＢＲプラントの洗浄薬液発注システム及びＭＢＲプラントの薬液発注方法を提供する点にある。 In view of the above-mentioned problems, an object of the present invention is an MBR plant management device, an MBR plant cleaning chemical solution, which can formulate an appropriate cleaning timing even when an unsteady situation occurs and can avoid an excessive stock of cleaning chemicals. The point is to provide an ordering system and a method for ordering chemicals in an MBR plant.
上述の目的を達成するため、本発明によるＭＢＲプラントの管理装置の第一の特徴構成は、膜分離装置を用いたＭＢＲプラントの管理装置であって、前記膜分離装置が設置された水処理系統の運転情報を管理する管理端末から通信媒体を介して送信された運転情報及び洗浄薬液在庫情報を受信する水処理施設情報受信部と、前記運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測部と、前記膜間差圧予測部により予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定部と、を備えている点にある。 In order to achieve the above object, the first characteristic configuration of the MBR plant management device according to the present invention is the MBR plant management device using the membrane separation device, and the water treatment system in which the membrane separation device is installed. The water treatment facility information receiving unit that receives the operation information and the cleaning chemical inventory information transmitted from the management terminal that manages the operation information of the water treatment system and the membrane differential pressure of the water treatment system based on the operation information. The intermembrane differential pressure prediction unit that predicts the transition of the membrane and the intermembrane differential pressure prediction unit predicts the value or rate of change of the intermembrane differential pressure so that the chemical solution is washed before the set value is reached. It has a chemical cleaning plan formulation department that formulates plans.
膜分離装置が設置された水処理系統の運転情報を管理する管理端末から水処理施設情報受信部を介して受信した運転情報に基づいて、膜間差圧予測部によって水処理系統の膜間差圧の推移が予測され、薬液洗浄計画策定部によって膜間差圧の推移の予測値またはその変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画が策定されるので、膜間差圧が異常に上昇するような事態の発生が回避される。 The difference between membranes of the water treatment system by the intermembrane differential pressure prediction unit based on the operation information received from the management terminal that manages the operation information of the water treatment system in which the membrane separation device is installed via the water treatment facility information receiving unit. Since the change in pressure is predicted and the chemical cleaning plan formulation department formulates the chemical cleaning plan so that the chemical cleaning is performed before the predicted value of the transition of the intermembrane differential pressure or the rate of change reaches the set value. The occurrence of a situation in which the intermembrane differential pressure rises abnormally is avoided.
同第二の特徴構成は、膜分離装置が設置された水処理系統の運転情報を管理する管理端末が組み込まれたＭＢＲプラントの管理装置であって、前記膜分離装置が設置された水処理系統の運転情報及び洗浄薬液在庫情報を収集する水処理施設情報収集部と、前記運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測部と、前記膜間差圧予測部により予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定部と、を備えている点にある。 The second characteristic configuration is the management device of the MBR plant in which the management terminal for managing the operation information of the water treatment system in which the membrane separation device is installed is incorporated, and the water treatment system in which the membrane separation device is installed. Water treatment facility information collection unit that collects operation information and cleaning chemical inventory information, an intermembrane differential pressure prediction unit that predicts the transition of the intermembrane differential pressure of the water treatment system based on the operation information, and the intermembrane. It has a chemical cleaning plan formulation department that formulates a chemical cleaning plan so that the chemical cleaning is performed before the time when the value or rate of change of the intermembrane differential pressure predicted by the differential pressure prediction unit reaches the set value. It is in.
上述した第一の特徴構成に示した管理装置では、複数のＭＢＲプラントに備えた各管理端末から通信媒体を介して受信された運転情報及び洗浄薬液在庫情報に基づいて、各ＭＢＲプラントに対する薬液洗浄計画が策定されるが、第二の特徴構成によれば、各ＭＢＲプラントに備えた管理端末が第一の特徴構成の管理装置として機能し、自己が管理するＭＢＲプラントに対して薬液洗浄計画を策定することにより、膜間差圧が異常に上昇するような事態の発生が回避される。 In the management device shown in the first feature configuration described above, the chemical solution cleaning for each MBR plant is based on the operation information and the cleaning chemical solution inventory information received from each management terminal provided in the plurality of MBR plants via the communication medium. A plan is formulated, but according to the second feature configuration, the management terminal provided for each MBR plant functions as a management device for the first feature configuration, and a chemical cleaning plan is provided for the MBR plant that it manages. By formulating, the occurrence of a situation in which the intermembrane differential pressure rises abnormally can be avoided.
同第三の特徴構成は、上述の第一または第二の特徴構成に加えて、前記膜間差圧予測部で予測される膜間差圧の値または変化率が３〜７日先の膜間差圧の値または変化率である点にある。 The third feature structure, in addition to the first or second characteristic feature of the above mentioned, the value or the change rate of the transmembrane pressure difference expected in the transmembrane pressure difference prediction unit is 3-7 days destination It is the value or rate of change of the differential pressure between membranes.
膜間差圧予測部で予測される膜間差圧の値または変化率が３〜７日先の値であれば、精度のよい予測が可能となり、また余裕を持って洗浄時期を策定できる。 If the value of the intermembrane differential pressure predicted by the intermembrane differential pressure prediction unit or the rate of change is a value 3 to 7 days ahead, accurate prediction is possible, and the cleaning time can be determined with a margin.
同第四の特徴構成は、上述の第一から第三の何れかの特徴構成に加えて、ＭＢＲプラントが複数の水処理系統を備え、前記膜間差圧予測部により予測される前記水処理系統毎の膜間差圧の設定値到達時期が重ならないように、前記水処理系統毎の膜間差圧の設定値到達時期を前後何れかに調整する運転条件調整情報を生成する運転条件調整情報生成部と、前記運転条件調整情報を前記管理端末に送信する運転条件調整情報送信部と、を備え、前記薬液洗浄計画策定部は、前記運転条件調整情報を加味して前記薬液洗浄計画を策定する、ように構成されている点にある。 The fourth characterizing feature of the from the first upper mentioned in addition to the third one of characteristic structure of the water MBR plant comprises a plurality of water treatment system, it is predicted by the transmembrane pressure difference prediction unit Operating conditions that adjust the time to reach the set value of the intermembrane differential pressure for each water treatment system before or after so that the time to reach the set value of the intermembrane differential pressure for each treatment system does not overlap. The adjustment information generation unit and the operation condition adjustment information transmission unit that transmits the operation condition adjustment information to the management terminal are provided, and the chemical solution cleaning plan formulation unit adds the operation condition adjustment information to the chemical solution cleaning plan. The point is that it is structured so as to formulate.
運転条件調整情報生成部によって生成された運転条件調整情報が管理端末に送信され、各管理端末で運転管理される水処理施設の水処理系統に対する運転条件が調整される結果、膜間差圧予測部により予測される膜間差圧の設定値到達時期が前後の何れかに調整される。そして、薬液洗浄計画策定部によって運転条件調整情報を加味した薬液洗浄計画が策定される。例えば、係員が不在の休日に薬液洗浄時期が訪れないように運転条件が調整されると、膜間差圧の急激な上昇による運転不能事態が回避され、洗浄薬液の在庫が不足すると予測される場合に、洗浄薬液が入手可能な時期まで薬液洗浄時期を遅らせるように運転条件が調整される。 The operating condition adjustment information generated by the operating condition adjustment information generator is transmitted to the management terminals, and as a result of adjusting the operating conditions for the water treatment system of the water treatment facility operated and managed by each management terminal, the differential pressure between membranes is predicted. The time to reach the set value of the intermembrane differential pressure predicted by the unit is adjusted to either before or after. Then, the chemical cleaning plan formulation department formulates a chemical cleaning plan that takes into account the operating condition adjustment information. For example, if the operating conditions are adjusted so that the chemical cleaning time does not come on holidays when the staff is absent, it is predicted that the inoperability due to the sudden rise in the intermembrane differential pressure will be avoided and the cleaning chemical stock will be insufficient. In some cases, operating conditions are adjusted to delay the cleaning period until the cleaning agent is available.
同第五の特徴構成は、上述の第四の特徴構成に加えて、前記運転条件調整情報はフラックス、余剰汚泥引抜量、汚泥循環量、曝気風量、薬液洗浄時期の何れかが含まれる点にある。 The fifth characterizing feature of, in addition to the fourth characterizing feature of the above mentioned, the operating conditions and tuning information flux, excess sludge withdrawal amount, sludge circulation rate, aeration volume, points contained either chemical cleaning timing It is in.
各水処理系統に対する運転条件として、フラックス、余剰汚泥引抜量、汚泥循環量、曝気風量、薬液洗浄時期の何れかを好適に用いることができる。例えば、膜分離装置のフラックスを増減することで膜間差圧の変化を緩急何れかに調整でき、余剰汚泥引抜量を増減することでＢＯＤ負荷を調整可能となり、ファウリング物質の存在量などの調整ができる。 As the operating conditions for each water treatment system, any one of flux, excess sludge withdrawal amount, sludge circulation amount, aeration air amount, and chemical solution cleaning time can be preferably used. For example, the change in the differential pressure between membranes can be adjusted slowly or rapidly by increasing or decreasing the flux of the membrane separation device, and the BOD load can be adjusted by increasing or decreasing the amount of excess sludge drawn out, such as the abundance of fouling substances. Can be adjusted.
同第六の特徴構成は、上述の第一から第五の何れかの特徴構成に加えて、前記運転情報は前記水処理系統の膜間差圧、フラックス、水温、曝気風量、濁度、処理水量、ｐＨ、ＤＯ、ＯＲＰ、ＭＬＳＳ、ＴＯＣ、ＣＯＤ、ＢＯＤ、ＮＨ３の何れかまたはそれらの組み合わせで構成されている点にある。 The sixth characterizing feature of from the first upper mentioned in addition to the fifth one of characteristic structure of the operation information is transmembrane pressure, flux, water temperature, aeration amount of the water treatment system, turbidity, of treated water, some pH, DO, ORP, MLSS, TOC, COD, BOD, in that it is constituted by any or a combination thereof NH 3.
水処理系統の膜間差圧の推移を予測するために必要な運転情報として、水処理系統の膜間差圧、フラックス、水温、曝気風量、濁度、処理水量、ｐＨ、ＤＯ、ＯＲＰ、ＭＬＳＳ、ＴＯＣ、ＣＯＤ、ＢＯＤ、ＮＨ３の何れかまたはそれらを組み合わせた値を好適に用いることができる。 As the operation information necessary for predicting the transition of the intermembrane differential pressure of the water treatment system, the intermembrane differential pressure, flux, water temperature, aeration air volume, turbidity, treated water volume, pH, DO, ORP, MLSS of the water treatment system , TOC, COD, BOD, NH 3 or a combination thereof can be preferably used.
同第七の特徴構成は、上述の第一から第六の何れかの特徴構成に加えて、前記薬液洗浄計画策定部は、前記膜間差圧予測部により予測される膜間差圧の上昇傾向及び／または前記運転情報に含まれる膜間差圧の上昇傾向から薬液洗浄に用いる薬液の種類を決定する、ように構成されている点にある。 The seventh characterizing feature of the from the first upper mentioned in addition to the sixth one of characteristic structure of the chemical cleaning program developer is the transmembrane pressure, which is predicted by the transmembrane pressure difference prediction unit The point is that the type of the chemical solution used for the chemical solution cleaning is determined from the upward tendency and / or the upward tendency of the intermembrane differential pressure included in the operation information.
膜間差圧予測部により予測される膜間差圧の上昇傾向及び／または運転情報に含まれる膜間差圧の上昇傾向から薬液洗浄に用いる薬液として、例えば塩酸、シュウ酸またはクエン酸のような無機系のファウリング物質に対して有効な薬剤が好ましいのか、次亜塩素酸ナトリウムのような有機系のファウリング物質に対して有効な薬液が好ましいのかが適切に判断できる。 The chemical solution used for chemical cleaning is, for example, hydrochloric acid, oxalic acid or citric acid, based on the increasing tendency of the intermembrane differential pressure predicted by the intermembrane differential pressure predictor and / or the increasing tendency of the intermembrane differential pressure included in the operation information. It can be appropriately determined whether a drug effective for an inorganic fouling substance is preferable or a drug solution effective for an organic fouling substance such as sodium hypochlorite is preferable.
本発明によるＭＢＲプラントの洗浄薬液発注システムの特徴構成は、前記薬液洗浄計画及び前記洗浄薬液在庫情報に基づいて薬液発注情報を生成する薬液発注情報生成部をさらに備えた上述の第一の特徴構成を備えたＭＢＲプラントの管理装置と、膜分離装置が設置された水処理系統の運転情報を管理し、前記管理装置に前記運転情報及び洗浄薬液在庫情報を送信する管理端末と、前記管理装置から送信された薬液発注情報に基づいて薬液を供給手配する薬液の供給業者端末と、を含み、通信可能に接続されている点にある。 Characteristic feature of the wash liquor ordering system of MBR plant according to the invention, before Symbol chemical cleaning plan and the wash liquor inventory further above first aspect comprising the chemical order information generation unit for generating a chemical order information based on the information An MBR plant management device having a configuration, a management terminal that manages operation information of a water treatment system in which a membrane separation device is installed, and transmits the operation information and cleaning chemical stock information to the management device, and the management device. The point is that it is communicably connected to the terminal of the chemical solution supplier that arranges the supply of the chemical solution based on the chemical solution ordering information transmitted from.
第一の特徴構成を備えたＭＢＲプラントの管理装置にさらに薬液発注情報生成部が設けられ、当該管理装置に前記運転情報及び洗浄薬液在庫情報を送信する管理端末と、管理装置から送信された薬液発注情報に基づいて薬液を供給手配する薬液の供給業者端末と、が通信可能に接続されることにより、非定常な状況が生じても適切な洗浄時期を策定でき、洗浄用薬液の過剰な在庫を回避可能な洗浄薬液発注システムが構築できる。 The management device of the MBR plant having the first characteristic configuration is further provided with a chemical solution ordering information generation unit, a management terminal for transmitting the operation information and the cleaning chemical solution inventory information to the management device, and a chemical solution transmitted from the management device. By connecting to the terminal of the supplier of the chemical solution that arranges the supply of the chemical solution based on the order information in a communicable manner, it is possible to formulate an appropriate cleaning time even if an unsteady situation occurs, and an excessive inventory of the chemical solution for cleaning can be established. A cleaning chemical ordering system that can avoid the problem can be constructed.
本発明によるＭＢＲプラントの薬液発注方法の第一の特徴構成は、膜分離装置が設置された水処理系統の運転情報を管理する管理端末から通信媒体を介して運転情報及び洗浄薬液在庫情報を管理装置に送信する運転情報送信ステップと、前記管理装置に備えた膜間差圧予測部により、前記運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測ステップと、前記管理装置に備えた薬液洗浄計画策定部により、前記膜間差圧予測ステップで予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定ステップと、前記管理装置に備えた薬液発注情報生成部により、前記薬液洗浄計画及び前記洗浄薬液在庫情報に基づいて薬液発注情報を生成する薬液発注情報生成ステップと、を備えている点にある。 The first characteristic configuration of the chemical solution ordering method of the MBR plant according to the present invention is to manage the operation information and the cleaning chemical solution inventory information from the management terminal that manages the operation information of the water treatment system in which the membrane separation device is installed via a communication medium. An operation information transmission step to be transmitted to the apparatus and an intermembrane differential pressure prediction step for predicting a transition of the intermembrane differential pressure of the water treatment system based on the operation information by the intermembrane differential pressure prediction unit provided in the management apparatus. Then, the chemical cleaning planning department provided in the management device cleans the chemical solution before the time when the value or rate of change of the intermembrane differential pressure predicted in the intermembrane differential pressure prediction step reaches the set value. A chemical solution ordering information generation step for generating a chemical solution ordering information based on the chemical solution cleaning plan and the cleaning chemical solution inventory information by the chemical solution ordering information generation unit provided in the management device and the chemical solution cleaning plan formulation step for formulating the chemical solution cleaning plan. And, it is in the point that it has.
同第二の特徴構成は、上述の第一の特徴構成に加えて、前記管理装置に備えた薬液発注情報送信部により、前記薬液発注情報生成ステップで生成された薬液発注情報を、前記管理端末を含む外部装置に送信する薬液発注情報送信ステップと、薬液の供給業者端末により、前記管理装置または前記管理端末を含む外部装置から受信した薬液発注情報に基づいて、前記水処理系統を備えたＭＢＲプラントに洗浄薬液を発送処理する洗浄薬液発送処理ステップと、を備えている点にある。 The second feature structure, in addition to the first characteristic feature of the above mentioned, by chemical order information transmitting section provided in the management apparatus, the chemical ordering information generated by the chemical ordering information generating step, the management The water treatment system is provided based on the chemical solution ordering information transmission step to be transmitted to the external device including the terminal and the chemical solution ordering information received from the management device or the external device including the management terminal by the chemical solution supplier terminal. The point is that it is provided with a cleaning chemicals shipping processing step for shipping and processing the cleaning chemicals to the MBR plant.
同第三の特徴構成は、前記管理装置に備えた薬液発注情報送信部により、前記薬液発注情報生成ステップで生成された薬液発注情報を、外部装置に送信する薬液発注情報送信ステップと、薬液の供給業者端末により、前記管理装置または前記外部装置から受信した薬液発注情報に基づいて、前記水処理系統を備えたＭＢＲプラントに洗浄薬液を発送処理する洗浄薬液発送処理ステップと、を備えている点にある。 The third feature structure, the chemical order information transmitting section which is provided in front Symbol management device, the chemical ordering information generated by the chemical ordering information generating step, and the chemical ordering information transmitting step of transmitting to the external device, chemical The supplier terminal includes a cleaning chemical solution shipping processing step for shipping the cleaning chemical solution to the MBR plant provided with the water treatment system based on the chemical solution ordering information received from the management device or the external device. At the point.
同第四の特徴構成は、上述の第三の特徴構成に加えて、前記管理装置に備えた薬液発注情報送信部により、前記薬液発注情報生成ステップで生成された薬液発注情報を、外部装置に送信する薬液発注情報送信ステップと、薬液の供給業者端末により、前記管理装置または前記管理端末から受信した薬液発注情報に基づいて、前記水処理系統を備えたＭＢＲプラントに洗浄薬液を発送処理する洗浄薬液発送処理ステップと、を備えている点にある。 The fourth characterizing feature of, in addition to the third characteristic feature of the above mentioned, by chemical order information transmitting section provided in the management apparatus, the chemical ordering information generated by the chemical ordering information generating step, an external device Based on the chemical solution ordering information transmission step to be transmitted to, and the chemical solution ordering information received from the management device or the management terminal by the chemical solution supplier terminal, the cleaning chemical solution is shipped to the MBR plant provided with the water treatment system. The point is that it is equipped with a cleaning chemical delivery processing step.
同第五の特徴構成は、上述の第一から第四の何れかの特徴構成に加えて、前記膜間差圧予測ステップで予測される膜間差圧の値または変化率が３〜７日先の膜間差圧の値または変化率である点にある。 The fifth characterizing feature of the from the first upper mentioned in addition to the fourth one of characteristic structure, the value or the change rate of the transmembrane pressure difference expected in the transmembrane pressure difference prediction step 3-7 The point is that it is the value or rate of change of the intermembrane pressure at the day ahead.
以上説明した通り、本発明によれば、非定常な状況が生じても適切な洗浄時期を策定でき、洗浄用薬液の過剰な在庫を回避可能なＭＢＲプラントの管理装置、ＭＢＲプラントの洗浄薬液発注システム及びＭＢＲプラントの薬液発注方法を提供することができるようになった。 As described above, according to the present invention, an appropriate cleaning time can be determined even if an unsteady situation occurs, and an MBR plant management device and an MBR plant cleaning chemical ordering that can avoid an excessive inventory of cleaning chemicals can be ordered. It has become possible to provide a method for ordering chemicals for systems and MBR plants.
以下に、本発明によるＭＢＲプラントの管理装置、ＭＢＲプラントの洗浄薬液発注システム及びＭＢＲプラントの薬液発注方法を説明する。 The MBR plant management device, the MBR plant cleaning chemical ordering system, and the MBR plant chemical ordering method according to the present invention will be described below.
［ＭＢＲプラントの洗浄薬液発注システムの構成］
図１に示すように、膜分離装置を用いたＭＢＲプラントの洗浄薬液発注システム１００は、複数のＭＢＲプラントを集中管理するサーバコンピュータで構成される管理装置２０と、各ＭＢＲプラントに備えた端末コンピュータで構成される管理端末１（１１，１２，・・・，１ｎ）及び同じく端末コンピュータで構成される薬液の供給業者端末３０を備え、それぞれがインターネットを介して通信可能に構成されている。以下では、ＭＢＲプラントを単に「水処理施設」と表記する。
[Configuration of cleaning chemical ordering system for MBR plant]
As shown in FIG. 1, the cleaning
管理端末１は、各水処理施設に設置され、膜分離装置が設置された水処理系統の運転情報を管理し、管理装置２０に運転情報及び洗浄薬液在庫情報を送信するように構成されている。また、薬液の供給業者端末３０は、管理装置２０から送信された薬液発注情報に基づいて対応する水処理施設に薬液を供給手配するように構成されている。水処理系統とは、原水から膜分離装置を介して処理水を得るために生物処理される一連の水処理設備をいい、通常は一つの水処理施設に複数の水処理系統が設けられ、各水処理系統の運転情報が一つの管理端末１により管理されている。
The
即ち、当該管理端末１は、膜分離装置が設置された各水処理系統の運転情報を管理すべく、各水処理系統に設置された膜間差圧ＴＭＰ（Trans Membrane Pressure）、膜透過流束Ｆｌｕｘ、余剰汚泥引抜量、汚泥循環量、曝気風量などの運転パラメータをモニタするセンサの検出値が入力され、或いはセンサに代えて作業者により調整されたパラメータが入力される入力インタフェースを備えている。そして、入力インタフェースを介して入力されたパラメータが運転情報として管理端末１に備えたメモリに格納され、メモリに格納された運転情報及び在庫情報がインターネットを介して管理装置２０に出力されるように構成されている。なお、在庫情報とは、各水処理施設に設けられた洗浄薬液の保管庫にストックされている薬液の在庫情報であり、入力インタフェースを介して作業者により入力される洗浄薬液の種類及び在庫量をいう。
That is, the
当該管理端末１には、管理装置２０から送信された後述の薬液洗浄計画に含まれる膜透過流束Ｆｌｕｘ、余剰汚泥引抜量、汚泥循環量、曝気風量、薬液洗浄などの運転パラメータを表示出力する表示部が設けられ、表示部に表示された運転パラメータを目視確認した作業者が水処理系統を運転制御するように構成されている。なお、当該管理端末に膜透過流束Ｆｌｕｘ、余剰汚泥引抜量、汚泥循環量、曝気風量などの一部を自動制御する機能が備わっていてもよい。
The
管理装置２０は、記憶部２２と、水処理施設情報受信部２１と、膜間差圧予測部２３と、薬液洗浄計画策定部２４と、運転条件調整情報送信部２６と、薬液発注情報生成部２７と、薬液発注情報送信部２８の各機能ブロックを備えている。各機能ブロックは、サーバコンピュータを構成するＣＰＵボード、通信ボード、メモリボードなどのハードウェアと、ＣＰＵボードに搭載されたＣＰＵで実行され、メモリボードに搭載されたメモリに格納された洗浄薬液発注用のアプリケーションプログラムにより構成され、ＣＰＵによって当該アプリケーションプログラムが実行されることにより、各機能ブロックが具現化される。
The management device 20 includes a storage unit 22, a water treatment facility
水処理施設情報受信部２１は、膜分離装置が設置された水処理系統の運転情報を管理する管理端末１から通信媒体であるインターネットを介して送信された運転情報及び洗浄薬液在庫情報を受信し、受信した運転情報及び洗浄薬液在庫情報を記憶部２２に格納する機能ブロックである。
The water treatment facility
膜間差圧予測部は、記憶部２２に格納された運転情報に基づいて各水処理系統の膜間差圧ＴＭＰの推移を予測する機能ブロックである。 The intermembrane differential pressure prediction unit is a functional block that predicts the transition of the intermembrane differential pressure TMP of each water treatment system based on the operation information stored in the storage unit 22.
薬液洗浄計画策定部２４は、膜間差圧予測部２３により予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する機能ブロックである。 The chemical solution cleaning plan formulation unit 24 has a function of formulating a chemical solution cleaning plan so that the chemical solution cleaning is performed before the time when the value or rate of change of the intermembrane differential pressure predicted by the intermembrane differential pressure prediction unit 23 reaches the set value. It is a block.
薬液発注情報生成部２７は、薬液洗浄計画及び記憶部２２に格納された洗浄薬液在庫情報に基づいて薬液発注情報を生成する機能ブロックであり、薬液発注情報送信部２８は、薬液発注情報生成部２７により生成された薬液発注情報を薬液の供給業者端末３０に送信する機能ブロックである。
The chemical solution ordering information generation unit 27 is a functional block that generates chemical solution ordering information based on the cleaning chemical solution inventory information stored in the chemical solution cleaning plan and the storage unit 22, and the chemical solution ordering
供給業者端末３０は、薬液発注情報送信部２８から送信された薬液発注情報を受信すると、薬液発注情報で特定される納入先の水処理施設に納入期日に間に合うように必要な薬液を必要な量だけ確保して発送処理を行なう。
When the
なお、本実施形態では、薬液発注情報送信部２８から供給業者端末３０に薬液発注情報が送信されるように構成されているが、薬液発注情報送信部２８から供給業者端末３０以外の外部装置に薬液発注情報が送信されるように構成されていてもよい。
In the present embodiment, the chemical solution ordering
外部装置とは、管理端末１、水処理施設の管理業者端末、薬液の供給業者端末などをいい、管理端末１に薬液発注情報が送信されると、当該管理端末１が設置された水処理施設の管理者が当該薬液発注情報に基づいて薬液供給業者に手配することができ、水処理施設の管理を委託された管理業者が管理する管理業者端末に薬液発注情報が送信されると、当該管理業者の係員が当該薬液発注情報に基づいて薬液供給業者に手配することができる。
The external device refers to a
［膜間差圧予測と薬液洗浄計画策定の説明］
図２には、水処理施設として、膜分離装置を備えた水処理系統を４系統備えたＭＢＲ（Membrane Bioreactor）プラントを例に、従来から行なわれている膜透過流束Ｆｌｕｘ制御とそれに伴う膜間差圧ＴＭＰ（Trans Membrane Pressure）の推移、膜間差圧ＴＭＰの過剰上昇（ＴＭＰジャンプともいう。）に対応した膜分離装置の薬液洗浄時期と薬液の在庫の推移が示されている。横軸は時間経過を示している。
[Explanation of intermembrane differential pressure prediction and chemical solution cleaning plan formulation]
FIG. 2 shows an example of an MBR (Membrane Bioreactor) plant equipped with four water treatment systems equipped with a membrane separation device as a water treatment facility, and the conventional membrane permeation flux control and the associated membrane. The transition of the intermembrane differential pressure TMP (Trans Membrane Pressure), the transition of the chemical solution cleaning time of the membrane separation device corresponding to the excessive increase of the intermembrane differential pressure TMP (also referred to as TMP jump), and the transition of the chemical solution inventory are shown. The horizontal axis shows the passage of time.
２系等分の洗浄に必要な膜洗浄薬液量を保管可能な保管庫を備え、薬液の発注から納入までの期間が４日を要する施設である。膜透過流束Ｆｌｕｘは定格０．５ｍ／ｄで、上限値(許容可能)は０．８ｍ／ｄである。膜洗浄目安のＴＭＰを１０ｋＰａとする。なお、Ｆｌｕｘを上限値以上で運転し或いは洗浄目安のＴＭＰを超えて運転すると膜寿命の早期化につながる。 This facility is equipped with a storage that can store the amount of membrane cleaning chemicals required for cleaning the two systems equally, and it takes four days from ordering to delivery of the chemicals. The membrane permeation flux Lux is rated at 0.5 m / d, and the upper limit (acceptable) is 0.8 m / d. The TMP of the membrane cleaning standard is 10 kPa. If the Lux is operated above the upper limit value or exceeds the TMP of the cleaning standard, the membrane life will be shortened.
第１系統（以下、単に「１系」などと記す。）でＴＭＰが洗浄目安を超えた時期に薬液洗浄され、さらにその後に２系でＴＭＰが洗浄目安を超えた初回に薬液洗浄されると薬液の在庫が無くなり、薬液発注して４日後に薬液が入荷する。この４日の間に３系及び４系でＴＭＰが洗浄目安を超えても薬液洗浄ができず、ＴＭＰが過剰上昇する。この間、３系及び４系のＦｌｕｘが定格を下回るため、１系及び２系のＦｌｕｘで補うべく、一時的にＦｌｕｘが上限値以上に設定される。 When the chemical solution is washed in the first system (hereinafter, simply referred to as "1 system") when the TMP exceeds the cleaning standard, and then in the second system, the chemical solution is washed for the first time when the TMP exceeds the cleaning standard. The chemicals are out of stock, and the chemicals arrive 4 days after the order is placed. Even if the TMP in the 3rd and 4th systems exceeds the cleaning standard during these 4 days, the chemical solution cannot be washed and the TMP rises excessively. During this period, since the Lux of the 3rd system and the 4th system is lower than the rating, the Lux is temporarily set to the upper limit value or more in order to supplement with the Lux of the 1st system and the 2nd system.
薬液が入荷すると、３系及び４系で時間をずらせて薬液洗浄が行なわれるとともにさらに次回の洗浄に備えて薬液発注される。その後、２系でＴＭＰが洗浄目安を超えた時に、たまたま作業者が不在となる休日のためにＴＭＰが過剰上昇する。また、豪雨が発生すると、処理量が増加して同時に複数の系統でＴＭＰが洗浄目安を超えたような場合には、在庫薬液量の不足により処理が破綻する場合もあった。 When the chemicals arrive, the chemicals are washed in the 3rd and 4th systems at different times, and the chemicals are ordered in preparation for the next cleaning. After that, when the TMP exceeds the cleaning standard in the second system, the TMP rises excessively due to a holiday when the worker happens to be absent. In addition, when heavy rain occurs, the amount of treatment increases, and when TMP exceeds the cleaning standard in a plurality of systems at the same time, the treatment may fail due to insufficient amount of chemicals in stock.
つまり、薬液在庫がなくなった時点で薬液を補充発注しているため、複数系統で同時期にＴＭＰジャンプが発生すると、薬液不足が発生して一部の系列の膜に負担のかかる運転を余儀なくされ、膜の寿命に大きな影響を与えていた。 In other words, since the chemical solution is replenished when the chemical solution stock is exhausted, if TMP jumps occur in multiple systems at the same time, the chemical solution shortage will occur and some series of membranes will be forced to operate. , It had a great influence on the life of the film.
図３には、本発明が適用された場合、つまり上述した膜間差圧予測部２３によりＴＭＰジャンプの発生時期が予測され、薬液洗浄計画策定部２４により各系の薬液洗浄時期が調整されることにより、洗浄薬液の過剰在庫を伴わずに適切に運転される場合の膜分離装置の薬液洗浄時期と薬液の在庫の推移が示されている。 In FIG. 3, when the present invention is applied, that is, the timing of occurrence of TMP jump is predicted by the above-mentioned intermembrane differential pressure prediction unit 23, and the timing of chemical solution cleaning of each system is adjusted by the chemical solution cleaning plan formulation unit 24. This shows the timing of cleaning the chemical solution of the membrane separation device and the transition of the inventory of the chemical solution when the membrane separating device is properly operated without excessive inventory of the cleaning chemical solution.
膜間差圧予測部２３により１系でＴＭＰジャンプの発生時期が予測され、次に２系でＴＭＰジャンプの発生時期が予測されると、薬液洗浄計画策定部２４によりＴＭＰジャンプの発生時期に１系の薬液洗浄時期が策定されるとともに、１系の薬液洗浄時期の薬液の消費に応じて事前に薬液発注される。
When the intermembrane differential pressure prediction unit 23 predicts the occurrence time of the TMP jump in the first system and then the occurrence time of the TMP jump in the second system, the chemical solution washing planning unit 24 predicts the occurrence time of the TMP jump by 1. The chemical solution cleaning time of the system is determined, and the chemical solution is ordered in advance according to the consumption of the chemical solution during the chemical solution cleaning period of the
その後、膜間差圧予測部２３により３系及び４系のＴＭＰジャンプの発生時期が予測され、その時期に薬液が不足すると予測される場合に、薬液洗浄計画策定部２４により運転条件調整条件が策定され、２系の薬液洗浄時期がＴＭＰジャンプの発生予測時期よりも前倒しで設定されるとともに、３系、４系のＦｌｕｘを定格よりも小さくした状態で運転し、ＴＭＰジャンプの発生時期を先延ばしするように制御する。
After that, when the intermembrane differential pressure prediction unit 23 predicts the occurrence time of the TMP jumps of the 3rd system and the 4th system and it is predicted that the chemical solution will be insufficient at that time, the chemical solution cleaning planning unit 24 will set the operating condition adjustment condition. It is formulated and the chemical solution cleaning time of
また、膜間差圧予測部２３により２系でＴＭＰジャンプの発生時期が休日になると予測される場合に、薬液洗浄計画策定部２４により策定された運転条件調整条件に基づいて前倒しで薬液洗浄時期が策定され、或いはＦｌｕｘを定格よりも小さくした状態で運転して休日明け以降にＴＭＰジャンプが発生するように制御する。 In addition, when the intermembrane differential pressure prediction unit 23 predicts that the TMP jump will occur on a holiday in the 2nd system, the chemical solution cleaning time will be advanced based on the operating condition adjustment conditions formulated by the chemical solution cleaning plan formulation unit 24. Is established, or the Lux is operated in a state where it is smaller than the rating, and the TMP jump is controlled so as to occur after the end of the holiday.
膜間差圧予測部２３により１系、３系、４系でのＴＭＰジャンプの発生時期が重なると予測されると、薬液洗浄計画策定部２４はＴＭＰジャンプの発生時期がずれるように各系統のＦｌｕｘを増減調整し、策定した薬液洗浄時期に対応するように薬液を発注する。なお、各系統の膜透過水量のトータル量が計画量となるように、各系統のＦｌｕｘが増減調整される。この例では、ＴＭＰジャンプの発生時期よりも前倒しで薬液洗浄された２系では余裕をもってＦｌｕｘを定格値より上昇させることができる。 When the intermembrane differential pressure prediction unit 23 predicts that the TMP jumps in the 1st, 3rd, and 4th systems will occur at the same time, the chemical cleaning planning unit 24 will move the TMP jumps in the 1st, 3rd, and 4th systems so that the TMP jumps will occur at different times. Adjust the amount of Flex to increase or decrease, and order the chemical solution so that it corresponds to the specified chemical solution cleaning time. The amount of Lux in each system is adjusted to increase or decrease so that the total amount of water permeated through the membrane of each system becomes the planned amount. In this example, the Lux can be raised above the rated value with a margin in the two systems that have been washed with the chemical solution earlier than the time when the TMP jump occurs.
膜間差圧予測部２３によりＴＭＰジャンプの発生時期が予測できることで、薬液の事前発注が可能になり薬液不足を回避できる。また薬液洗浄計画策定部２４により策定される運転条件調整条件に基づいて各系のＦｌｕｘを制御することによって、人員を揃えられない休日のＴＭＰジャンプの発生回避や、複数系列の同時期のＴＭＰジャンプ発生を回避することが可能になる。 Since the time when the TMP jump occurs can be predicted by the intermembrane differential pressure prediction unit 23, it is possible to pre-order the chemical solution and avoid the chemical solution shortage. In addition, by controlling the Lux of each system based on the operating condition adjustment conditions formulated by the chemical cleaning plan formulation department 24, it is possible to avoid the occurrence of TMP jumps on holidays when personnel cannot be arranged, and TMP jumps of multiple series at the same time. It becomes possible to avoid the occurrence.
［管理装置の構成］
図３に示した膜分離装置の薬液洗浄時期と薬液の在庫の推移を実現するための管理装置２０の構成について詳述する。
[Management device configuration]
The configuration of the management device 20 for realizing the chemical solution cleaning timing of the membrane separation device and the transition of the chemical solution inventory shown in FIG. 3 will be described in detail.
膜間差圧予測部２３は、各水処理系統の運転情報に基づいてそれぞれの膜間差圧ＴＭＰの推移を予測演算する。例えば、３〜７日先迄の膜間差圧ＴＭＰを、１日に４〜５回の頻度で予測演算する。予測演算アルゴリズムとしてニューラルネットワーク演算や統計演算などを好適に用いることができる。 The intermembrane differential pressure prediction unit 23 predicts and calculates the transition of each intermembrane differential pressure TMP based on the operation information of each water treatment system. For example, the intermembrane differential pressure TMP up to 3 to 7 days ahead is predicted and calculated at a frequency of 4 to 5 times a day. Neural network calculation, statistical calculation and the like can be preferably used as the prediction calculation algorithm.
例えば膜間差圧ＴＭＰを目的変数とし、膜分離槽および前後の反応槽(好気槽・嫌気槽・原水槽など)からモニタリング可能な膜間差圧ＴＭＰ、Ｆｌｕｘ、水温、曝気風量、濁度、処理水量、ｐＨ、ＤＯ（Dissolved Oxygen）、ＯＲＰ（Oxidation- Reduction Potential）、ＭＬＳＳ（Mixed Liquor Suspended Solids）、運転時間(前回薬洗からの経過時間)の何れかまたはそれらの組み合わせを説明変数として、一般的な多変量解析手法で予測することができる。膜間差圧ＴＭＰの推移の予測演算手法は公知の予測演算手法を適宜用いることが可能である。つまり、運転情報として、水処理系統の膜間差圧、フラックス、水温、曝気風量、濁度、処理水量、ｐＨ、ＤＯ、ＯＲＰ、ＭＬＳＳ、ＴＯＣ、ＣＯＤ、ＢＯＤ、ＮＨ３の何れかまたはそれらの組み合わせで構成することができる。 For example, with the intermembrane differential pressure TMP as the objective variable, the intermembrane differential pressure TMP, Lux, water temperature, aeration air volume, and turbidity that can be monitored from the membrane separation tank and the reaction tanks before and after (aerobic tank, anaerobic tank, raw water tank, etc.) , Treatment water amount, pH, DO (Dissolved Oxygen), ORP (Oxidation-Reduction Potential), MLSS (Mixed Liquor Suspended Solids), operating time (elapsed time from the previous drug wash) or a combination thereof as explanatory variables , Can be predicted by a general multivariate analysis method. As a predictive calculation method for the transition of the intermembrane differential pressure TMP, a known predictive calculation method can be appropriately used. That is, as the operation information, any one of the intermembrane differential pressure, flux, water temperature, aeration air volume, turbidity, treated water volume, pH, DO, ORP, MLSS, TOC, COD, BOD, NH 3 of the water treatment system or theirs. It can be composed of combinations.
薬液洗浄計画策定部２４には、膜間差圧予測部２３により予測される膜間差圧の設定値到達時期を前後何れかに調整する運転条件調整情報を生成する運転条件調整情報生成部２５と、運転条件調整情報を管理端末に送信する運転条件調整情報送信部２６が設けられ、薬液洗浄計画策定部２４は、運転条件調整情報を加味して薬液洗浄計画を策定するように構成されている。 In the chemical cleaning plan formulation unit 24, the operation condition adjustment information generation unit 25 that generates the operation condition adjustment information for adjusting the arrival time of the set value of the intermembrane differential pressure predicted by the intermembrane differential pressure prediction unit 23 either before or after. An operating condition adjustment information transmitting unit 26 for transmitting the operating condition adjustment information to the management terminal is provided, and the chemical solution cleaning plan formulation unit 24 is configured to formulate the chemical solution cleaning plan in consideration of the operating condition adjustment information. There is.
薬液発注情報生成部２７は、策定された薬液洗浄計画と薬液の在庫情報と、薬液の納品までに要する時間を加味して、計画された洗浄時期に必要な薬液が必要量確保できるように薬液発注情報を生成し、記憶部２２に記憶する。 The chemical solution ordering information generation unit 27 takes into account the formulated chemical solution cleaning plan, the chemical solution inventory information, and the time required for delivery of the chemical solution, so that the required amount of the chemical solution can be secured at the planned cleaning time. Order information is generated and stored in the storage unit 22.
運転条件調整情報生成部２５によって生成された運転条件調整情報が管理端末１に送信され、各管理端末１で運転管理される水処理施設の水処理系統に対する運転条件が調整される結果、膜間差圧予測部２３により予測される膜間差圧の設定値到達時期が前後の何れかに調整される。
The operating condition adjustment information generated by the operating condition adjustment information generation unit 25 is transmitted to the
そして、薬液洗浄計画策定部２４によって運転条件調整情報を加味した薬液洗浄計画が策定される。つまり、運転条件調整情報に基づいて各水処理系統の運転条件が変更された結果更新される新たな運転情報に基づいて予測される膜間差圧ＴＭＰの推移に基づいて薬液洗浄計画が策定される。 Then, the chemical solution cleaning plan formulation department 24 formulates the chemical solution cleaning plan in consideration of the operating condition adjustment information. In other words, a chemical cleaning plan is formulated based on the transition of the intermembrane differential pressure TMP predicted based on the new operating information that is updated as a result of changing the operating conditions of each water treatment system based on the operating condition adjustment information. NS.
例えば、係員が不在の休日に薬液洗浄時期が訪れないように運転条件が調整されると、膜間差圧の急激な上昇による運転不能事態が回避され、洗浄薬液の在庫が不足すると予測される場合に、洗浄薬液が入手可能な時期まで薬液洗浄時期が遅れるように運転条件が調整され、その結果の膜間差圧ＴＭＰの予測値に基づいて薬液洗浄計画が策定される。 For example, if the operating conditions are adjusted so that the chemical cleaning time does not come on holidays when the staff is absent, it is predicted that the inoperability due to the sudden rise in the intermembrane differential pressure will be avoided and the cleaning chemical stock will be insufficient. In this case, the operating conditions are adjusted so that the chemical cleaning time is delayed until the cleaning chemicals are available, and the chemical cleaning plan is formulated based on the predicted value of the resulting intermembrane differential pressure TMP.
図３に示したように、複数の水処理系統を備えた水処理施設に対して、膜間差圧予測部２３は水処理系統毎に膜間差圧の推移を予測し、運転条件調整情報生成部２５は、膜間差圧予測部２３により予測された水処理系統毎の膜間差圧の推移に基づいて、水処理系統毎の膜間差圧の設定値到達時期が重ならないように水処理系統毎に運転条件調整情報を生成し、薬液洗浄計画策定部２４は水処理系統毎に予測される膜間差圧の設定値到達時期の前に薬液洗浄するように薬液洗浄計画を策定するように構成されている。従って、大きな保管スペースに多量の薬液を準備しておく必要が無く、薬液の在庫量を最小に止めることができる。 As shown in FIG. 3, for a water treatment facility provided with a plurality of water treatment systems, the intermembrane differential pressure prediction unit 23 predicts the transition of the intermembrane differential pressure for each water treatment system, and operates condition adjustment information. The generation unit 25 is based on the transition of the intermembrane differential pressure for each water treatment system predicted by the intermembrane differential pressure prediction unit 23 so that the set value arrival times of the intermembrane differential pressure for each water treatment system do not overlap. Operating condition adjustment information is generated for each water treatment system, and the chemical solution cleaning plan formulation unit 24 formulates a chemical solution cleaning plan so that the chemical solution is washed before the time when the set value of the intermembrane differential pressure predicted for each water treatment system is reached. It is configured to do. Therefore, it is not necessary to prepare a large amount of the chemical solution in a large storage space, and the inventory amount of the chemical solution can be minimized.
運転条件調整情報は、膜間差圧予測部２３によって得られた膜間差圧ＴＭＰの予測値を変更調節するための運転条件の目標値であり、例えばフラックス、余剰汚泥引抜量、汚泥循環量、曝気風量、薬液洗浄時期の何れかが含まれる。例えば、膜分離装置のフラックスを増減し或いは曝気風量を増減することで、ファウリング物質の膜面への付着量を調整して膜間差圧の変化を緩急何れかに調整でき、余剰汚泥引抜量を増減することでＢＯＤ負荷を調整可能となり、ファウリング物質の存在量などの調整ができる。 The operating condition adjustment information is a target value of the operating condition for changing and adjusting the predicted value of the intermembrane differential pressure TMP obtained by the intermembrane differential pressure prediction unit 23, and is, for example, a flux, an excess sludge withdrawal amount, and a sludge circulation amount. , Aeration air volume, or chemical cleaning time is included. For example, by increasing or decreasing the flux of the membrane separation device or increasing or decreasing the amount of aerated air, the amount of fouling substance adhering to the membrane surface can be adjusted to adjust the change in the differential pressure between membranes either slowly or rapidly, and excess sludge can be drawn out. The BOD load can be adjusted by increasing or decreasing the amount, and the abundance of fouling substances can be adjusted.
薬液洗浄計画策定部２４は、膜間差圧予測部２３により予測される膜間差圧の上昇傾向及び／または運転情報に含まれる膜間差圧の上昇傾向から薬液洗浄に用いる薬液の種類を決定するように構成されている。 The chemical solution cleaning plan formulation unit 24 determines the type of chemical solution used for chemical solution cleaning from the upward tendency of the intermembrane differential pressure predicted by the intermembrane differential pressure prediction unit 23 and / or the increasing tendency of the intermembrane differential pressure included in the operation information. It is configured to determine.
膜間差圧の上昇傾向から微生物代謝成分である有機物によりファウリングが進行する通常のケースでは、洗浄薬液として有機系のファウリング物質に対する洗浄薬液である次亜塩素酸ナトリウムを選択することができる。 In a normal case where fouling progresses due to an organic substance that is a microbial metabolic component due to an increasing tendency of the differential pressure between membranes, sodium hypochlorite, which is a cleaning chemical solution for organic fouling substances, can be selected as the cleaning chemical solution. ..
通常のケースと異なる挙動を検知すると、洗浄に用いる薬液の種類を変更し適切に対応することができる。例えば、過去の傾向と比較して、無機成分由来のファウリングによる膜差圧上昇であると判断できれば塩酸、シュウ酸またはクエン酸のような無機系のファウリング物質に対する洗浄薬液を選択することができる。 If a behavior different from that of a normal case is detected, the type of chemical solution used for cleaning can be changed and an appropriate response can be taken. For example, if it can be determined that the membrane differential pressure is increased due to fouling derived from an inorganic component as compared with the past tendency, a cleaning chemical solution for an inorganic fouling substance such as hydrochloric acid, oxalic acid or citric acid can be selected. can.
無機由来のファウリングによる膜差圧上昇の場合は通常時に比べ、次亜塩素酸ナトリウムによる洗浄後も初期圧が高く、膜差圧上昇の傾きが大きいなどの傾向が見られる。 In the case of an increase in the membrane differential pressure due to fouling derived from an inorganic substance, the initial pressure is higher even after washing with sodium hypochlorite and the slope of the membrane differential pressure increase is larger than in the normal case.
即ち、薬液洗浄計画策定部２４は、膜間差圧予測部２３により予測される膜間差圧の上昇傾向及び／または運転情報に含まれる膜間差圧の上昇傾向から薬液洗浄に用いる薬液として、例えば塩酸、シュウ酸またはクエン酸のような無機系のファウリング物質に対する洗浄薬液が好ましいのか、次亜塩素酸ナトリウムのような有機系のファウリング物質に対する洗浄薬液が好ましいのかを適切に判断するように構成されている。 That is, the chemical solution cleaning plan formulation unit 24 uses the chemical solution as a chemical solution for chemical solution cleaning based on the increasing tendency of the intermembrane differential pressure predicted by the intermembrane differential pressure prediction unit 23 and / or the increasing tendency of the intermembrane differential pressure included in the operation information. Appropriately determine whether a cleaning solution for an inorganic fouling substance such as hydrochloric acid, oxalic acid or citric acid is preferable, or a cleaning solution for an organic fouling substance such as sodium hypochlorite is preferable. It is configured as follows.
上述した洗浄薬液発注システムによって、本発明による水処理施設の薬液発注方法が実行される。即ち、図５に示すように、膜分離装置が設置された水処理系統の運転情報を管理する管理端末から通信媒体を介して運転情報及び洗浄薬液在庫情報を管理装置に送信する運転情報送信ステップと（Ｓ１）、管理装置に備えた膜間差圧予測部により、運転情報に基づいて水処理系統の膜間差圧の推移を予測する膜間差圧予測ステップ（Ｓ２）と、管理装置に備えた薬液洗浄計画策定部により、膜間差圧予測ステップで予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定ステップと（Ｓ３）、策定された薬液洗浄計画を管理端末に送信するステップＳ７）と、管理装置に備えた薬液発注情報生成部により、薬液洗浄計画及び洗浄薬液在庫情報に基づいて薬液発注情報を生成する薬液発注情報生成ステップと（Ｓ８）、管理装置に備えた薬液発注情報送信部により、薬液発注情報生成ステップで生成された薬液発注情報を、管理端末を含む外部装置に送信する薬液発注情報送信ステップ（Ｓ９）と、薬液の供給業者端末により、管理装置または管理端末から受信した薬液発注情報に基づいて、水処理系統を備えた水処理施設に洗浄薬液を発送処理する洗浄薬液発送処理ステップと（図示せず。）、が実行される。 The cleaning chemical ordering system described above executes the chemical ordering method for a water treatment facility according to the present invention. That is, as shown in FIG. 5, an operation information transmission step of transmitting operation information and cleaning chemical stock information to the management device from the management terminal that manages the operation information of the water treatment system in which the membrane separation device is installed via a communication medium. And (S1), the intermembrane differential pressure prediction step (S2) that predicts the transition of the intermembrane differential pressure of the water treatment system based on the operation information by the intermembrane differential pressure prediction unit provided in the management device, and the management device The prepared chemical solution cleaning plan formulation department formulates a chemical solution cleaning plan so that the chemical solution cleaning is performed before the time when the value or rate of change of the intermembrane differential pressure predicted in the intermembrane differential pressure prediction step reaches the set value. The cleaning plan formulation step (S3), the step S7) of transmitting the formulated chemical solution cleaning plan to the management terminal, and the chemical solution ordering information generation unit provided in the management device, the chemical solution based on the chemical solution cleaning plan and the cleaning chemical solution inventory information. The chemical solution ordering information generation step for generating ordering information and the chemical solution ordering information transmitting unit provided in the management device transmit the chemical solution ordering information generated in the chemical solution ordering information generation step to an external device including the management terminal. Based on the chemical solution ordering information transmission step (S9) and the chemical solution ordering information received from the management device or the management terminal by the chemical solution supplier terminal, the cleaning chemical solution is shipped to a water treatment facility equipped with a water treatment system. The shipping processing step (not shown) is performed.
そして、薬液洗浄計画策定ステップ（Ｓ３）で策定された計画は、その妥当性が評価され（Ｓ４）、適切であれば薬液発注情報生成ステップ（Ｓ８）が実行され、不適切であれば運転条件情報生成ステップが実行される（Ｓ５）。妥当性の評価として、策定された各系統の薬液洗浄時期に適量の薬液が確保されるか否か、策定された薬液洗浄時期が土日などの休日に該当するか否か、各系統からの全Ｆｌｕｘが所定の量から大きく変動しないか否かなどの基準が設定されている。 Then, the validity of the plan formulated in the chemical solution cleaning plan formulation step (S3) is evaluated (S4), the chemical solution ordering information generation step (S8) is executed if appropriate, and the operating conditions if inappropriate. The information generation step is executed (S5). As an evaluation of validity, whether or not an appropriate amount of chemical solution is secured at the formulated chemical solution cleaning time, whether or not the formulated chemical solution cleaning time corresponds to holidays such as Saturdays, Sundays, etc., all from each system Criteria such as whether or not the Lux does not fluctuate significantly from a predetermined amount are set.
膜間差圧予測ステップを実行することにより、膜間差圧が予測でき、薬品洗浄計画(人員確保、薬品確保など)の策定に活用できるほか、膜間差圧の上昇時期を遅らせるべく、運転条件を調整することが可能になる。膜間差圧の上昇に余裕が見込める状況であれば、省エネ、処理水量確保などの観点で定格Ｆｌｕｘ以上のＦｌｕｘで効率的な膜ろ過運転管理を実施することが可能になる。 By executing the intermembrane differential pressure prediction step, the intermembrane differential pressure can be predicted, which can be used for formulating a chemical cleaning plan (securing personnel, securing chemicals, etc.), and also operating to delay the rise time of the intermembrane differential pressure. It becomes possible to adjust the conditions. If there is a margin for the increase in the differential pressure between membranes, it is possible to carry out efficient membrane filtration operation management with a Lux having a rating of Flux or higher from the viewpoint of energy saving and securing the amount of treated water.
具体的に、膜差圧上昇期を予測して、薬液洗浄時期に合わせた薬品発注を行ない、最小限の在庫で済ませることができる。また、複数の系統間でＦｌｕｘを調整することにより、複数系統の同時破綻を回避することができる。 Specifically, it is possible to predict the period of increase in the differential pressure between membranes, place an order for chemicals according to the timing of cleaning the chemical solution, and minimize the inventory. Further, by adjusting the Lux between the plurality of systems, it is possible to avoid the simultaneous failure of the plurality of systems.
膜間差圧の上昇を抑制する運転管理手法として、Ｆｌｕｘの低減、汚泥引き抜き量の調整(ＭＬＳＳ調整)が好適に採用できる。汚泥当たりの負荷量が増大している際や低水温時汚泥活性が下がる時期に引き抜き量を減らしＭＬＳＳを高く維持すればよく、逆に汚泥が濃くなりすぎているケースでは引き抜き量を上げＳＲＴを短くすればよい。 As an operation management method for suppressing an increase in the differential pressure between membranes, reduction of Lux and adjustment of sludge extraction amount (MLSS adjustment) can be preferably adopted. When the load per sludge is increasing or when the sludge activity at low water temperature is low, the amount of withdrawal should be reduced and the MLSS should be kept high. Conversely, if the sludge is too thick, the amount of withdrawal should be increased and the SRT should be increased. You can shorten it.
以下、別実施形態を説明する。
上述した実施形態では、サーバコンピュータで構成される管理装置が、複数の水処理設備に設置された管理端末から運転情報及び薬液在庫情報を収集して、集中的に管理する態様を説明したが、各水処理施設の管理端末を当該水処理施設に対する管理を行なう管理装置として構成してもよい。
Hereinafter, another embodiment will be described.
In the above-described embodiment, the mode in which the management device composed of the server computer collects the operation information and the chemical liquid inventory information from the management terminals installed in the plurality of water treatment facilities and centrally manages them has been described. The management terminal of each water treatment facility may be configured as a management device for managing the water treatment facility.
即ち、膜分離装置が設置された水処理系統の運転情報を管理する管理端末が組み込まれた水処理施設の管理装置であって、膜分離装置が設置された水処理系統の運転情報及び洗浄薬液在庫情報を収集する水処理施設情報収集部と、運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測部と、膜間差圧予測部により予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定部と、薬液洗浄計画及び前記洗浄薬液在庫情報に基づいて薬液発注情報を生成する薬液発注情報生成部と、を備えていればよい。 That is, it is a management device of a water treatment facility incorporating a management terminal for managing the operation information of the water treatment system in which the membrane separation device is installed, and the operation information and the cleaning chemical solution of the water treatment system in which the membrane separation device is installed. Predicted by the water treatment facility information collection unit that collects inventory information, the intermembrane separation pressure prediction unit that predicts the transition of the intermembrane differential pressure of the water treatment system based on the operation information, and the intermembrane differential pressure prediction unit. Chemical solution cleaning plan formulation department that formulates a chemical solution cleaning plan so that chemical solution cleaning is performed before the time when the value or rate of change of the intermembrane differential pressure reaches the set value, and the chemical solution based on the chemical solution cleaning plan and the cleaning chemical solution inventory information. It suffices to have a chemical solution ordering information generation unit for generating ordering information.
この場合には、管理端末により、膜分離装置が設置された水処理系統の運転情報及び洗浄薬液在庫情報を管理装置に収集する運転情報収集ステップと、管理装置に備えた膜間差圧予測部により、運転情報に基づいて水処理系統の膜間差圧の推移を予測する膜間差圧予測ステップと、管理装置に備えた薬液洗浄計画策定部により、膜間差圧予測ステップで予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定ステップと、管理装置に備えた薬液発注情報生成部により、薬液洗浄計画及び前記洗浄薬液在庫情報に基づいて薬液発注情報を生成する薬液発注情報生成ステップと、管理装置に備えた薬液発注情報送信部により、薬液発注情報生成ステップで生成された薬液発注情報を、外部装置に送信する薬液発注情報送信ステップと、薬液の供給業者端末により、管理端末から受信した薬液発注情報に基づいて、水処理系統を備えた水処理施設に洗浄薬液を発送処理する洗浄薬液発送処理ステップと、を備えた薬液発注方法が実行される。 In this case, the management terminal collects the operation information and the cleaning chemical inventory information of the water treatment system in which the membrane separation device is installed in the management device, and the operation information collection step and the intermembrane differential pressure prediction unit provided in the management device. The intermembrane differential pressure prediction step that predicts the transition of the intermembrane differential pressure of the water treatment system based on the operation information, and the intermembrane differential pressure prediction step that is predicted by the chemical cleaning plan formulation department provided in the management device. The chemical solution cleaning plan formulation step for formulating a chemical solution cleaning plan so that the chemical solution cleaning is performed before the time when the value or rate of change of the intermembrane differential pressure reaches the set value, and the chemical solution ordering information generation unit provided in the management device are used for the chemical solution. The chemical solution ordering information generation step that generates the chemical solution ordering information based on the cleaning plan and the cleaning chemical solution inventory information, and the chemical solution ordering information generated in the chemical solution ordering information generation step by the chemical solution ordering information transmission unit provided in the management device, Based on the chemical solution ordering information transmission step to be transmitted to the external device and the chemical solution ordering information received from the management terminal by the chemical solution supplier terminal, the cleaning chemical solution is shipped to the water treatment facility equipped with the water treatment system. A process step and a method of ordering a chemical solution comprising.
上述した実施形態では、膜分離装置を備えた水処理施設がＭＢＲプラントであったが、膜分離装置を備えた水処理施設であれば、浄水処理プラント、海水淡水化プラントなどの水処理施設に対しても本発明を適用可能である。 In the above-described embodiment, the water treatment facility provided with the membrane separation device is an MBR plant, but if it is a water treatment facility equipped with a membrane separation device, it can be used as a water treatment facility such as a water purification plant or a seawater desalination plant. The present invention can also be applied to this.
上述した実施形態は本発明の一例に過ぎず、本発明による作用効果を奏する範囲において各機能ブロックの具体的構成は適宜変更設計可能であることはいうまでもない。 It goes without saying that the above-described embodiment is merely an example of the present invention, and the specific configuration of each functional block can be appropriately modified and designed within the range in which the action and effect according to the present invention are exhibited.
１：管理端末
２０：管理装置
２１：水処理施設情報受信部
２２：記憶部
２３：膜間差圧予測部
２４：薬液洗浄計画策定部
２５：運転条件調整情報生成部
２６：運転条件調整情報送信部
２７：薬液発注情報生成部
２８：薬液発注情報送信部
３０：外部装置（薬液供給業者端末）
１００：洗浄薬液発注システム
1: Management terminal 20: Management device 21: Water treatment facility information receiving unit 22: Storage unit 23: Intermembrane differential pressure prediction unit 24: Chemical solution cleaning plan formulation unit 25: Operating condition adjustment information generation unit 26: Operating condition adjustment information transmission Unit 27: Chemical solution ordering information generation unit 28: Chemical solution ordering information transmission unit 30: External device (chemical solution supplier terminal)
100: Cleaning chemical ordering system
Claims (13)
前記膜分離装置が設置された水処理系統の運転情報を管理する管理端末から通信媒体を介して送信された運転情報及び洗浄薬液在庫情報を受信する水処理施設情報受信部と、
前記運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測部と、
前記膜間差圧予測部により予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定部と、を備えているＭＢＲプラントの管理装置。 An MBR plant management device that uses a membrane separation device.
A water treatment facility information receiving unit that receives operation information and cleaning chemical inventory information transmitted via a communication medium from a management terminal that manages operation information of the water treatment system in which the membrane separation device is installed.
An intermembrane differential pressure prediction unit that predicts the transition of the intermembrane differential pressure of the water treatment system based on the operation information,
It is provided with a chemical solution cleaning plan formulation unit that formulates a chemical solution cleaning plan so that the chemical solution is washed before the time when the value or rate of change of the intermembrane differential pressure predicted by the intermembrane differential pressure prediction unit reaches a set value. MBR plant management equipment.
前記膜分離装置が設置された水処理系統の運転情報及び洗浄薬液在庫情報を収集する水処理施設情報収集部と、
前記運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測部と、
前記膜間差圧予測部により予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定部と、を備えているＭＢＲプラントの管理装置。 It is a management device of the MBR plant with a built-in management terminal that manages the operation information of the water treatment system in which the membrane separation device is installed.
A water treatment facility information collection unit that collects operation information and cleaning chemical inventory information of the water treatment system in which the membrane separation device is installed, and
An intermembrane differential pressure prediction unit that predicts the transition of the intermembrane differential pressure of the water treatment system based on the operation information,
It is provided with a chemical solution cleaning plan formulation unit that formulates a chemical solution cleaning plan so that the chemical solution is washed before the time when the value or rate of change of the intermembrane differential pressure predicted by the intermembrane differential pressure prediction unit reaches a set value. MBR plant management equipment.
前記膜間差圧予測部により予測される前記水処理系統毎の膜間差圧の設定値到達時期が重ならないように、前記水処理系統毎の膜間差圧の設定値到達時期を前後何れかに調整する運転条件調整情報を生成する運転条件調整情報生成部と、
前記運転条件調整情報を前記管理端末に送信する運転条件調整情報送信部と、
を備え、
前記薬液洗浄計画策定部は、前記運転条件調整情報を加味して前記薬液洗浄計画を策定する、ように構成されている請求項１から３の何れかに記載のＭＢＲプラントの管理装置。 The MBR plant has multiple water treatment systems
Before or after the time when the set value of the intermembrane pressure for each water treatment system is reached so that the time when the set value for the intermembrane pressure for each water treatment system is reached does not overlap. An operating condition adjustment information generator that generates operating condition adjustment information
An operating condition adjustment information transmitting unit that transmits the operating condition adjustment information to the management terminal,
With
The management device for an MBR plant according to any one of claims 1 to 3, wherein the chemical solution cleaning plan formulation unit is configured to formulate the chemical solution cleaning plan in consideration of the operating condition adjustment information.
膜分離装置が設置された水処理系統の運転情報を管理し、前記管理装置に前記運転情報及び洗浄薬液在庫情報を送信する管理端末と、
前記管理装置から送信された薬液発注情報に基づいて薬液を供給手配する薬液の供給業者端末と、
を含み、通信可能に接続されているＭＢＲプラントの洗浄薬液発注システム。 The management device for an MBR plant according to claim 1, further comprising a chemical solution ordering information generation unit that generates chemical solution ordering information based on the chemical solution cleaning plan and the cleaning chemical solution inventory information.
A management terminal that manages the operation information of the water treatment system in which the membrane separation device is installed and transmits the operation information and the cleaning chemical inventory information to the management device.
A drug solution supplier terminal that arranges the supply of the drug solution based on the drug solution ordering information transmitted from the management device, and
A cleaning chemical ordering system for MBR plants that is communicably connected, including.
前記管理装置に備えた膜間差圧予測部により、前記運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測ステップと、
前記管理装置に備えた薬液洗浄計画策定部により、前記膜間差圧予測ステップで予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定ステップと、
前記管理装置に備えた薬液発注情報生成部により、前記薬液洗浄計画及び前記洗浄薬液在庫情報に基づいて薬液発注情報を生成する薬液発注情報生成ステップと、を備えているＭＢＲプラントの薬液発注方法。 An operation information transmission step of transmitting operation information and cleaning chemical inventory information to the management device from a management terminal that manages operation information of the water treatment system in which the membrane separation device is installed via a communication medium.
An intermembrane differential pressure prediction step for predicting the transition of the intermembrane differential pressure of the water treatment system based on the operation information by the intermembrane differential pressure prediction unit provided in the management device, and
The chemical cleaning planning department provided in the management device performs chemical cleaning so that the chemical cleaning is performed before the time when the value or rate of change of the intermembrane differential pressure predicted in the intermembrane differential pressure prediction step reaches the set value. Chemical cleaning plan formulation steps to formulate a plan,
A method for ordering a chemical solution in an MBR plant, comprising: a chemical solution ordering information generation step for generating chemical solution ordering information based on the chemical solution cleaning plan and the cleaning chemical solution inventory information by a chemical solution ordering information generation unit provided in the management device.
薬液の供給業者端末により、前記管理装置または前記管理端末を含む外部装置から受信した薬液発注情報に基づいて、前記水処理系統を備えたＭＢＲプラントに洗浄薬液を発送処理する洗浄薬液発送処理ステップと、を備えている請求項９記載のＭＢＲプラントの薬液発注方法。 A chemical solution ordering information transmission step of transmitting the chemical solution ordering information generated in the chemical solution ordering information generation step to an external device including the management terminal by the chemical solution ordering information transmitting unit provided in the management device.
With the cleaning chemicals shipping processing step of shipping the cleaning chemicals to the MBR plant provided with the water treatment system based on the chemicals ordering information received from the management device or an external device including the management terminal by the chemicals supplier terminal. 9. The method for ordering a chemical solution for an MBR plant according to claim 9.
前記管理装置に備えた膜間差圧予測部により、前記運転情報に基づいて前記水処理系統の膜間差圧の推移を予測する膜間差圧予測ステップと、
前記管理装置に備えた薬液洗浄計画策定部により、前記膜間差圧予測ステップで予測される膜間差圧の値または変化率が設定値に到達する時期の前に薬液洗浄するように薬液洗浄計画を策定する薬液洗浄計画策定ステップと、
前記管理装置に備えた薬液発注情報生成部により、前記薬液洗浄計画及び前記洗浄薬液在庫情報に基づいて薬液発注情報を生成する薬液発注情報生成ステップと、を備えているＭＢＲプラントの薬液発注方法。 An operation information collection step that collects operation information and cleaning chemical inventory information of the water treatment system in which the membrane separation device is installed in the management device, and
An intermembrane differential pressure prediction step for predicting the transition of the intermembrane differential pressure of the water treatment system based on the operation information by the intermembrane differential pressure prediction unit provided in the management device, and
The chemical cleaning planning department provided in the management device performs chemical cleaning so that the chemical cleaning is performed before the time when the value or rate of change of the intermembrane differential pressure predicted in the intermembrane differential pressure prediction step reaches the set value. Chemical cleaning plan formulation steps to formulate a plan,
A method for ordering a chemical solution in an MBR plant, comprising: a chemical solution ordering information generation step for generating chemical solution ordering information based on the chemical solution cleaning plan and the cleaning chemical solution inventory information by a chemical solution ordering information generation unit provided in the management device.
薬液の供給業者端末により、前記管理装置または前記外部装置から受信した薬液発注情報に基づいて、前記水処理系統を備えたＭＢＲプラントに洗浄薬液を発送処理する洗浄薬液発送処理ステップと、
を備えている請求項１１記載のＭＢＲプラントの薬液発注方法。 A chemical solution ordering information transmission step for transmitting the chemical solution ordering information generated in the chemical solution ordering information generation step to an external device by the chemical solution ordering information transmitting unit provided in the management device, and a chemical solution ordering information transmission step.
A cleaning chemicals shipping processing step of shipping the cleaning chemicals to the MBR plant provided with the water treatment system based on the chemicals ordering information received from the management device or the external device by the chemicals supplier terminal.
11. The method for ordering a chemical solution for an MBR plant according to claim 11.
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