JP6394084B2 - Remote management control system for river water filtration equipment - Google Patents

Description

  The present invention relates to a remote management control system for a river water filtration device that remotely controls a plurality of river water filtration devices installed in an area of the same river water source.

Conventionally, a remote monitoring control system including a plurality of water treatment devices and a remote monitoring control device that is connected to be able to communicate with the plurality of water treatment devices and remotely monitors and controls the plurality of water treatment devices is known ( For example, see Patent Document 1). In the remote monitoring control system described in Patent Literature 1, based on the analysis result of monitoring information acquired from a plurality of water treatment devices, the same water treatment device as the water treatment device from which the monitoring information is obtained, or the monitoring information It is said that comprehensive remote monitoring and control can be performed on a water treatment device different from the water treatment device from which it is acquired.
In the remote monitoring and control system described in Patent Document 1, the plurality of water treatment devices filter (treat) waste water discharged from a factory.

Japanese Patent No. 5259467

  When the water treatment device is a river water filtration device, the river water filtration device captures the polluted material (for example, suspended matter, algae, microorganisms, etc.) contained in the river water by the turbidity membrane module and supplies the treated water. To manufacture. In such a river water filtration apparatus, as treated water is produced, a cake layer (deposition layer of pollutants) grows on the surface of the turbidity membrane, and the water flow resistance increases. Therefore, in order to suppress clogging of the turbidity membrane module and maintain the filtration performance, the reverse cleaning mode in which the primary side of the turbidity membrane module is backwashed, or the order in which the primary side of the turbidity membrane module is sequentially washed (flushing) is used. Cleaning operations such as a cleaning mode and other cleaning modes (for example, chemical cleaning) are periodically performed. Increasing or decreasing the frequency of these cleaning operations is one of the important management items in securing the required permeation flux of treated water. In addition, the degree of progression of blockage of the turbidity membrane module in the river water filtration device varies depending on the setting range of the water flow rate during the filtration process and the quality of the river water introduced into the river water filtration device.

Therefore, in a configuration including a plurality of river water filtration devices, when fluctuations in the quality of river water introduced into the plurality of river water filtration devices occur, an operation for suppressing the blockage of the turbidity removal membrane module is performed in a timely manner. Is preferred. And, in a plurality of river water filtration devices, if it is possible to remotely control the operation of suppressing the blockage of the turbidity removal membrane module from a remote location, it is possible to comprehensively manage the plurality of river water filtration devices, which is very useful It is.
Therefore, in a configuration including a plurality of river water filtration devices, when the water quality of the river water fluctuates, the river water filtration devices are remotely controlled for the operation of suppressing the blockage of the turbidity removal membrane module. It is desirable to comprehensively manage the water filtration device.

  The present invention provides a comprehensive control of a plurality of river water filtration devices by remotely controlling a plurality of river water filtration devices with respect to an operation for suppressing clogging of the turbidity removal membrane module when fluctuations in river water quality occur. It aims at providing the remote management control system of the river water filtration apparatus which can be managed to.

The present invention provides a plurality of rivers that are installed in the area of the same river water source, and remove the pollutants contained in the river water by introducing the river water from the same river water source into the turbidation membrane module to produce treated water. A water filtration device and a plurality of river water filtration devices that are disposed in remote locations geographically separated from the plurality of river water filtration devices, and are communicably connected to the plurality of river water filtration devices. A remote control unit for remotely controlling the water, total organic carbon, chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand, and adenosine An analysis data storage unit that stores analysis data relating to any one or more water quality items of phosphoric acid, and the analysis data includes another river water filtration device that is different from the river water filtration device whose settings are changed. Including Wherein an analytical data of the time series of a plurality of water sampling date of river water in river water filtration device or the detection date, the remote control unit, according to the water quality of the river water that has been stored before Symbol analytical data storage unit When the detection value of the water quality item of the river water stored in the analysis data storage unit increases based on analysis data information that is information of the analysis data in the plurality of river water filtration devices , the plurality of rivers When determining whether or not the differential pressure between the primary side and the secondary side of the water filtration device has increased, and determining that the differential pressure between the primary side and the secondary side of the plurality of river water filtration devices has increased , An operation for increasing the frequency of execution of a reverse cleaning mode in which the primary side of the turbidity membrane module is reversely cleaned for each of the plurality of river water filtration devices, and a sequential cleaning mode in which the primary side of the turbidity membrane module is sequentially cleaned Increase the frequency of Operation, an operation for adjusting the amount of fungicide to be added to the river water to be introduced into the dividing Nigomaku module, and to adjust the amount of aggregating agent to be added to the river water introduced into the dividing Nigomaku module run by remote control one of the operations, it relates to a remote management control system of river water filtration device.

  In addition, the remote control unit performs an operation for increasing the frequency of execution of the reverse cleaning mode when performing an operation for increasing the frequency of execution of the reverse cleaning mode and / or an operation for increasing the frequency of execution of the forward cleaning mode. And / or after performing an operation to increase the frequency of execution of the sequential cleaning mode, the analysis data relating to the water quality item of the river water stored in the analysis data storage unit is the data of the plurality of river water filtration devices When returning to the level before the differential pressure increases, the frequency of execution of the reverse cleaning mode and / or the frequency of execution of the forward cleaning mode is determined for each of the plurality of river water filtration devices. It is preferable to change the setting by remote control so that the frequency before the differential pressure of the apparatus increases.

  Further, the remote control unit, when performing an operation of adjusting the amount of the flocculant added to the river water introduced into the turbidity membrane module, all the river water stored in the analysis data storage unit When organic carbon is increased and the differential pressure of the plurality of river water filtration devices is increased, the remote control is performed so as to increase the preset amount of the flocculant added to each of the plurality of river water filtration devices. It is preferable to change the setting by control.

  According to the present invention, a plurality of river water filtration devices can be controlled by remotely controlling a plurality of river water filtration devices for the operation of suppressing the blockage of the turbidity removal membrane module when the water quality of the river water changes. It is possible to provide a remote management control system for a river water filtration device that can be comprehensively managed.

It is a whole lineblock diagram of remote management control system 1 of a river water filtration device concerning one embodiment of the present invention. It is a block diagram which shows the structure of the water quality detection apparatus 9 of this embodiment. It is a functional block diagram which concerns on control of the remote management control system 1 of the river water filtration apparatus of this embodiment. It is a flowchart which shows the process sequence of the 1st operation example of the remote management control system 1 of the river water filtration apparatus of this embodiment. It is a flowchart which shows the process sequence of the 2nd operation example of the remote management control system 1 of the river water filtration apparatus of this embodiment. It is a flowchart which shows the process sequence of the 3rd operation example of the remote management control system 1 of the river water filtration apparatus of this embodiment. It is a flowchart which shows the process sequence of the 4th operation example of the remote management control system 1 of the river water filtration apparatus of this embodiment. It is a flowchart which shows the process sequence of the 5th operation example of the remote management control system 1 of the river water filtration apparatus of this embodiment. It is a flowchart which shows the process sequence of the 6th operation example of the remote management control system 1 of the river water filtration apparatus of this embodiment.

  Hereinafter, an embodiment of a remote management control system 1 for a river water filtration device according to the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a remote management control system 1 for a river water filtration device according to the present invention. FIG. 2 is a block diagram showing the configuration of the water quality detection device 9 of the present embodiment. FIG. 3 is a functional block diagram relating to the control of the remote management control system 1 of the river water filtration device of the present embodiment.

  As shown in FIG. 1, the remote management control system 1 for a river water filtration device according to this embodiment remotely controls a plurality of river water filtration devices 2 a to 2 c by communication from a remote location via a network 3. The network 3 is a wide-area communication network using wired communication or wireless communication.

  The river water filtration device remote management control system 1 includes a river water source 4, a plurality of river water filtration devices 2a to 2c, a remote control device 5, a plurality of river water lines L1a to L1c, and a plurality of treated water lines L2a. ~ L2c, a plurality of concentrated water outlet lines L3a to L3c, a plurality of concentrated water return lines L31a to L31c, a plurality of concentrated water discharge lines L32a to L32c, a plurality of proportional control valves 10a to 10c, and a plurality of sterilizers Agent addition devices 6a to 6c, a plurality of flocculant addition devices 7a to 7c, a plurality of intercellular information transmission substance addition devices 8a to 8c, and a plurality of water quality detection devices 9a to 9c. “Line” is a general term for lines capable of flowing fluid such as flow paths, paths, and pipelines.

  The plurality of river water filtration devices 2 a to 2 c are installed in the area of the same river water source 4. The area in the same river water source 4 means an area in which the river water W1 from the same river water source 4 can be supplied. The plurality of river water filtering devices 2a to 2c installed in the region of the same river water source 4 include, for example, a plurality of river waters installed in different geographically separated establishments or separated sites in the same company. Examples include a filtering device, a plurality of river water filtering devices used by a plurality of users in geographically separated areas, and a plurality of river water filtering devices installed in geographically separated areas in another company. The plurality of river water filtration devices 2a to 2c may not be all installed apart from each other, and some or all of them may be installed nearby.

  The river water filtration device 2a is, for example, a river water filtration device used by the user X. The river water filtration device 2b is, for example, a river water filtration device used by the user Y. The river water filtration device 2c is, for example, a river water filtration device used by the user Z. In addition, the user who uses several river water filtration apparatus 2a-2c is not limited to this, For example, river water filtration apparatus 2a and 2b may be the river water filtration apparatus which user X uses, and river water The river water filtration device used by the user Y may be used as the filtration device 2c. In this case, for example, the river water filtration devices 2a and 2b used by the user X are installed at close positions, and the river water filtration device 2c used by the user Y is changed from the river water filtration devices 2a and 2b used by the user X. It may be installed at geographically separated positions.

  The plurality of river water filtration devices 2a to 2c include pressurization pumps 21a to 21c, turbidity removal membrane modules 22a to 22c, turbidity control units 23a to 23c, and control valves (channel switching valves) (not shown). And comprising. River water W1 is supplied from the same river water source 4 (river) to each of the plurality of river water filtering devices 2a to 2c via the river water lines L1a to L1c. General river water lines L1a to L1c are composed of water pipe networks (for example, industrial water supply and waterworks) laid and managed by local governments and local public bodies, and water supply lines laid and managed by each user. It is configured. The river water lines L1a to L1c are connected to the river water source 4 on the upstream side, and are connected to the plurality of river water filtration devices 2a to 2c on the downstream side. Details of the plurality of river water filtration devices 2a to 2c will be described later.

  In the middle of the river water lines L1a to L1c, from the upstream side toward the downstream side, the water quality detection devices 9a to 9c, the bactericidal agent addition devices 6a to 6c, the flocculant addition devices 7a to 7c, and the intercellular information transmission material addition device 8a-8c are connected in order. The disinfectant adding devices 6a to 6c are respectively connected to connection portions J1a to J1c in the middle of the river water lines L1a to L1c. Each of the flocculant addition apparatuses 7a to 7c is connected to connection portions J2a to J2c in the middle of the river water lines L1a to L1c. Each of the intercellular information transmission substance adding devices 8a to 8c is connected to connection portions J3a to J3c in the middle of the river water lines L1a to L1c. Each of the water quality detection devices 9a to 9c is connected to connection portions J4a to J4c in the middle of the river water lines L1a to L1c.

  The disinfectant adding devices 6a to 6c are devices for adding a disinfectant to the river water W1 supplied to the turbidity removing film modules 22a to 22c of the river water filtering devices 2a to 2c. A disinfectant is a chemical used to suppress the growth of microorganisms in water, and is also called a slime control agent. As the bactericidal agent, for example, an isothiazoline-based compound can be used. Specifically, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, and the like Is mentioned. The disinfectant addition devices 6 a to 6 c are connected to the remote control device 5 via the network 3 and are remotely controlled by the remote control unit 51.

  The flocculant addition devices 7a to 7c are devices that add the flocculant to the river water W1 supplied to the turbidity removal film modules 22a to 22c of the river water filtration devices 2a to 2c. The aggregating agent is a chemical used for aggregating (flocculating) suspended substances in water to facilitate removal. As the flocculant, for example, an inorganic flocculant can be used, and specific examples include polyaluminum chloride (PAC) and aluminum sulfate (LAS). The flocculant addition devices 7 a to 7 c are connected to the remote control device 5 via the network 3 and are remotely controlled by the remote control unit 51.

  The intercellular information transmitters 8a-8c are intercellular transmitters or biofilms that promote biofilm dispersion in the river water W1 supplied to the turbidity membrane modules 22a-22c of the river water filters 2a-2c. It is a device that adds an intercellular signal transduction substance that inhibits formation.

  An intercellular information transmission substance that promotes biofilm dispersion is also called a biofilm dispersion signal substance. By adding an intercellular information transmission substance that promotes biofilm dispersion to the river water W1, the biofilm penetrates into the biofilm and gives a signal that induces the bacteria to float in the biofilm. Can be dispersed. The biofilm is a film in which organic substances contained in river water are deposited, bacteria adhere to the organic substances to form slime, and the slime forms colonies to be formed on the film surface. Intercellular information transmitters (intercellular signal substances) are substances that transmit information between cells.

  The intercellular signal transduction substance that inhibits biofilm formation corresponds to an inhibitor having a structure similar to that of a biofilm formation signal substance, and examples thereof include AHL (acylated homoserine lactone). By adding an intercellular information transfer substance that inhibits biofilm formation to the river water W1, quorum sensing can be suppressed and slime growth can be suppressed. Quorum sensing is also called an intercellular information transmission mechanism, and is a mechanism that senses the cell density using an intercellular information transmission substance (intercellular signal substance) and controls the production of the substance accordingly.

  The water quality detection devices 9a to 9c detect water quality items of the river water W1 flowing through the river water lines L1a to L1c. The water quality items of the river water W1 include total organic carbon, chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand, and adenosine triphosphate. The water quality detection devices 9 a to 9 c are connected to the remote control device 5 via the network 3.

  As shown in FIG. 2, the water quality detection devices 9a to 9c include a total organic carbon sensor (hereinafter also referred to as “TOC sensor”) 91, a chlorophyll sensor 92, a temperature sensor 93, a total phosphorus concentration sensor 94, and total nitrogen. It has a concentration sensor 95, a biochemical oxygen demand sensor (hereinafter also referred to as “BOD sensor”) 96, and an adenosine triphosphate sensor (hereinafter also referred to as “ATP sensor”) 97. The detection values detected by the TOC sensor 91, chlorophyll sensor 92, temperature sensor 93, total phosphorus concentration sensor 94, total nitrogen concentration sensor 95, BOD sensor 96, and ATP sensor 97 are transmitted via the network 3 to the remote control device 5. Is input.

  The TOC sensor 91 is a sensor that analyzes or detects the total organic carbon concentration (hereinafter also referred to as “TOC concentration”) of the river water W1 flowing through the river water line L1. The TOC concentration represents the total amount of organic substances present in water as a carbon amount. The TOC concentration of the sample water collected and the TOC concentration detected in the river water filtration devices 2a to 2c are analyzed or detected by the TOC sensor 91. The TOC sensor 91 is a device that detects the amount of carbon in organic matter in water.

  The chlorophyll sensor 92 is a sensor that analyzes or detects the chlorophyll concentration of the river water W1 that flows through the river water line L1. Chlorophyll is also called chlorophyll and is classified into chlorophyll a, b and the like. Chlorophyll a is a photosynthetic pigment present in all green plants, and its concentration indicates the amount of phytoplankton in water. In the present embodiment, the chlorophyll concentration is used as an indicator of the amount of algae. As the chlorophyll sensor 92, a sensor that detects the chlorophyll concentration using the method of spectrophotometric determination described in JIS K0400-80-10 “Water quality—measurement of biochemical parameters—photometric determination of chlorophyll concentration” is used. Can do.

  The temperature sensor 93 is a sensor that analyzes or detects the water temperature of the river water W1 flowing through the river water line L1. The water temperature of the river water W1 is used as an index indicating an increase or decrease in the amount of algae. When the water temperature of the river water W1 rises, the amount of algae tends to increase.

The total phosphorus concentration sensor 94 is a sensor that analyzes or detects the total phosphorus concentration of the river water W1 flowing through the river water line L1. The total nitrogen concentration sensor 95 is a sensor that analyzes or detects the total nitrogen concentration of the river water W1 flowing through the river water line L1. The total phosphorus and total nitrogen in the river water W1 are used as indicators for eutrophication. When a large amount of nutrients (phosphorus, nitrogen) flows into the river water, it becomes eutrophic and a large amount of phytoplankton is likely to be generated.
As the total phosphorus concentration sensor 94, for example, a sensor that detects the total phosphorus concentration using molybdenum blue (ascorbic acid reduction) absorptiometry can be used.
As the total nitrogen concentration sensor 95, for example, a sensor that detects the total nitrogen concentration using an ultraviolet absorption photometry method, a copper / cadmium column reduction method, and a hydrazinium sulfate reduction method can be used.

  The BOD sensor 96 is a sensor that analyzes or detects a biochemical oxygen demand (hereinafter also referred to as “BOD”) of the river water W1 flowing through the river water line L1. BOD refers to the amount of oxygen consumed when microorganisms consume organic substances in water, and is used as an indicator of organic pollution in rivers. In general, when the value of BOD is large, the microorganism is consuming a lot of oxygen and decomposing organic matter, that is, the amount of organic matter present in water is large, and the degree of water pollution by organic matter is large. On the other hand, when the river water is clean, the BOD value is small because the amount of oxygen consumed by microorganisms is small, that is, the amount of organic matter present in the water is small. As the BOD sensor 96, it is possible to use a sensor in which river water is allowed to stand at room temperature (20 ° C.) for 5 days and oxygen consumption by microorganisms during that period is measured.

  The ATP sensor 97 is a sensor that analyzes or detects adenosine triphosphate (hereinafter also referred to as “ATP”) in the river water W1 flowing through the river water line L1. ATP is an energy transfer substance (nucleotide) contained in the cells and foods of all living organisms, and is used as an indicator of the degree of activity of microorganisms. As the ATP sensor 97, for example, ATP is combined with a luminescent element (for example, luciferin) and an enzyme (for example, luciferase) to emit light, and the amount of luminescence (for example, fluorescence intensity) is measured to detect the ATP concentration. Things can be used.

  Each of the plurality of river water filtration devices 2a to 2c introduces the river water W1 from the same river water source 4 into the turbidity membrane modules 22a to 22c, thereby removing the pollutants contained in the river water W1 and treating the treated water W2a. -W2c is manufactured. Each of the plurality of river water filtration devices 2a to 2c supplies the manufactured treated water W2a to W2c to the demand point via the treated water lines L2a to L2c. The treated water lines L2a to L2c are connected to each of the plurality of river water filtration devices 2a to 2c on the upstream side, and connected to a demand point on the downstream side. Contaminants include algae and slime (adhesive soft mud that contains microorganisms such as bacteria, adhesives secreted by those microorganisms, and inorganic substances such as earth and sand that are incorporated into these adhesives. Substance).

  In addition, in the following description, when it is not necessary to distinguish plural or singular, plural river water filtration devices 2a to 2c, plural pressurizing pumps 21a to 21c, plural turbidity removal membrane modules 22a to 22c, plural Turbidity control units 23a-23c, a plurality of turbidity storage units 24a-24c, treated water W2a-2c, washing waste water W3a-W3c, bactericidal agent addition devices 6a-6c, flocculant addition devices 7a-7c, and intercellular information The identification symbols “a”, “b” and “c” of the transmitter substance adding devices 8a to 8c and the water quality detecting devices 9a to 9c are omitted, and simply “river water filtration device 2” and “pressure pump 21” are omitted. ”,“ Turbidation membrane module 22 ”,“ turbidation control unit 23 ”,“ treated water W2 ”,“ washing wastewater W3 ”,“ bactericidal agent addition device 6 ”,“ flocculant addition device 7 ”,“ intercellular information ” Transmitter addition device 8 ”,“ Water quality detection device It described as ".

  As described above, the river water filtration devices 2a to 2c are configured by the pressurizing pumps 21a to 21c provided on the upstream side and the turbidity membrane modules 22a to 22c provided on the downstream side, respectively.

  The turbidity removal membrane module 22 produces treated water W2 from which contaminants have been removed from the river water W1 pumped by the pressure pump 21. The turbidity removal membrane module 22 accommodates, for example, a bundle of polyvinylidene fluoride (PVDF) hollow fiber membranes in a vessel, and a sealant between the inner peripheral surface of the vessel and the outer peripheral surface of the hollow fiber membrane at both ends of the vessel. It is formed by filling. The turbidity-eliminating module 22 can be either an external pressure type or an internal pressure type, but is preferably an external pressure type in which the inside of the hollow fiber is difficult to block. Moreover, as a filtration system, any of a whole quantity filtration system or a cross flow filtration system may be sufficient. In general, the total amount filtration method consumes less energy during the filtration operation, but the growth of the cake layer is fast, and therefore it is necessary to shorten the execution interval of the reverse cleaning and the forward cleaning (flushing). On the other hand, the cross flow filtration method consumes a lot of energy due to water circulation during the filtration operation, but because the growth of the cake layer is gradual, it is possible to extend the interval between backwashing and forwardwashing. .

  A membrane having coarser pores than a reverse osmosis membrane (also referred to as “RO membrane”) is used for the hollow fiber membrane incorporated in the turbidity removal membrane module 22. As the turbidity removal membrane module, a UF membrane module having an ultrafiltration membrane, an MF membrane module having a microfiltration membrane, or the like can be applied. Commercially available products such as the HFU series manufactured by Toray Industries, Inc., and the HFS series manufactured by Toray Industries, Inc. can be suitably used as the former. In the present embodiment, the following configuration of the apparatus, operation, and the like will be described assuming that the turbidity removal membrane module 22 is an external pressure UF membrane module of a total amount filtration method.

  The pressurizing pump 21 pressurizes the river water W <b> 1 supplied from the river water source 4 and sends it to the turbidity membrane module 22. Here, a flow rate sensor (not shown) for detecting the flow rate of the treated water W2 from the turbidation membrane module 22, an inverter (not shown) for changing the rotation speed of the pressurizing pump 21 according to the drive frequency, It is preferable to include a flow rate control unit 232 (see FIG. 3, which will be described later) that outputs a command signal to the inverter based on a flow rate detection signal from the flow rate sensor. According to this configuration, control can be performed so as to maintain the flow rate of the treated water W2 constant by feedback control based on the flow rate of the treated water W2 detected by the flow sensor.

  Thereby, even if the water flow resistance between the membranes increases with the growth of the cake layer on the membrane surface, the rotational speed of the pressurizing pump 21 is automatically adjusted by the flow rate control unit 232, and the flow rate of the treated water W2 Can be controlled to be constant.

  According to this river water filtration device remote management control system 1, the river water W1 supplied from the same river water source 4 is sent to the river water filtration device 2 via the river water line L1. The river water W1 flowing into the river water filtration device 2 becomes treated water W2 that is finally purified by the river water filtration device 2. The treated water W2 is supplied to the demand point via the treated water line L2. The cake layer (deposited layer of the pollutant) that has grown on the membrane surface by continuing the filtration operation is peeled off by performing the reverse cleaning mode or the forward cleaning mode, and is removed from the system via the drainage line L3 together with the cleaning drainage W3. Discharged.

  In the vicinity of the river water filtration device 2, a treated water line L2 through which treated water W2 can circulate, a drain line L3 for discharging the washed waste water W3 out of the system, and a backwash water W4 (treated water W2) are turbidized. A backwash water line L4 that supplies the module 22 is provided.

  The treated water line L2 is a line for deriving treated water W2 that has passed through the UF membrane to the outside of the apparatus. The treated water line L2 is connected to the turbidity membrane module 22, and supplies (derived) the treated water W2 produced by the turbidity membrane module 22 to the demand point. A part of the treated water W2 is stored in a backwash water tank (not shown), and the stored treated water W2 is used as backwash water W4 (described later).

  The backwash water line L4 is a line that supplies the treated water W2 as the backwash water W4 to the secondary side of the turbidation membrane module 22 in the backwash mode. The downstream end of the backwash water line L4 is connected to the treated water line L2 at the connection portion J5. The backwash water line L4 is provided with a backwash pump 20 for pumping backwash water W4 (treated water W2) from a backwash water tank (not shown).

  The drainage line L3 is a line through which the cleaning wastewater W3 generated in the reverse cleaning mode and the forward cleaning mode flows. The drainage line L3 is connected to the primary side of the turbidity-eliminating membrane module 22, and discharges the cleaning wastewater W3 containing suspended substances out of the system. A drain valve 10 is provided in the middle of the drain line L3. The drain valve 10 is composed of, for example, an electric valve, and is configured to open and close the drain line L <b> 3 under the control of the remote control unit 51.

  Each of the plurality of river water filtering devices 2a to 2c is included in the river water W1 by switching the control valve (not shown) to introduce the river water W1 from the same river water source 4 into the turbidity membrane modules 22a to 22c. A water treatment process for removing treated pollutants to produce treated water W2a to W2c, a washing process for washing the primary side of the internal turbidity removal membrane modules 22a to 22c (reverse washing mode and / or forward washing mode), Can be executed.

  In the back washing mode of the washing process, the back washing water W4 (treated water W2) is caused to flow from the inside to the outside of the hollow fiber membrane incorporated in the turbidity membrane module 22. Specifically, a predetermined valve mechanism provided in the river water line L1 and the treated water line L2 downstream of the connection portion J5 is closed, the drain valve 10 is opened, and the backwash pump 20 is backwashed. It is operated to pump water W4 (treated water W2). Thereby, the cake layer grown on the outer surface of the hollow fiber membrane is peeled off. The washing waste water W3 after washing is discharged out of the system through the drain line L3. After the back washing of the hollow fiber membrane, the washing waste water W3 remaining in the primary side of the turbidity removal membrane module 22 is discharged and the river water W1 is introduced. The reverse cleaning mode is executed at a frequency of once every 30 minutes to 1 hour, for example, according to the water quality of the river water W1.

  In the forward washing mode of the washing process, the river water W1 is caused to flow at a high flow rate on the outer surface of the hollow fiber membrane incorporated in the turbidity removal membrane module 22. Specifically, a predetermined valve mechanism provided in the backwash water line L4 and the treated water line L2 downstream of the connecting portion J5 is closed, the drain valve 10 is opened, and the pressurizing pump 21 is connected to the river water. It is operated to pump W1 at a higher flow rate than the water treatment process. Thereby, the cake layer grown on the outer surface of the hollow fiber membrane is washed away. The washing waste water W3 after washing is discharged out of the system through the drain line L3. The forward cleaning mode is executed once every 5 to 10 minutes, for example, according to the water quality of the river water W1.

  In addition, in the plurality of river water filtration devices 2a to 2c, the execution of the back washing mode and the forward washing mode may be set so that only one of them is executed, or set so that both are executed. May be. When both the reverse cleaning mode and the forward cleaning mode are executed, every time the execution of the forward cleaning mode reaches a predetermined number of times (for example, 2 to 5 times), the reverse cleaning mode is operated once.

As shown in FIG. 3, the turbidity control unit 23 includes a process execution unit 231 and a flow rate control unit 232.
The process execution unit 231 executes a water treatment process and a cleaning process (reverse cleaning mode and / or forward cleaning mode) by controlling opening and closing of a control valve (not shown) provided in the river water filtration device 2.

The process execution unit 231 can perform flow rate cleaning, time cleaning, or periodic cleaning with respect to execution timing control of the cleaning process. The flow rate cleaning executed in the cleaning process of the process execution unit 231 is executed when the integrated water flow rate of the river water W1 flowing into the river water filtration device 2 reaches a preset upper limit water flow rate. The time cleaning executed in the cleaning process of the process execution unit 231 is executed when the accumulated water passing time of the river water W1 flowing into the river water filtering device 2 reaches a preset upper water passing time. The periodic cleaning executed in the cleaning process of the process execution unit 231 is executed when the number of elapsed days counted by a timer unit (not shown) reaches a preset number of periodic days.
The frequency of execution of the cleaning process (that is, the upper limit water flow rate in the flow rate cleaning, the upper limit water flow time in the time cleaning, and the periodic days in the periodic cleaning) is set in advance. The setting is changed by a remote control unit 51 of the remote control device 5 described later according to the pressure difference between the side and the secondary side.

  The flow rate controller 232 calculates the drive frequency of the pressurizing pump 21 and outputs a frequency designation signal (current value signal or voltage value signal) corresponding to the calculated value of the drive frequency to an inverter (not shown).

The remote control device 5 remotely controls the plurality of river water filtration devices 2a to 2c. The remote control device 5 includes a remote control unit 51 and an analysis data storage unit 52.
The analysis data storage unit 52 includes the total organic carbon, chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand, and adenosine of the river water W1 introduced into the acquired plurality of river water filtration devices 2a to 2c. Analytical data relating to one or more water quality items of triphosphate is stored. For example, as the obtained analysis data, the river water W1 introduced into the river water filtration device 2 is collected as sample water, and the collected sample water is analyzed at an analysis center (not shown), All organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD), and adenosine triphosphate (ATP) in river water W1 introduced into the river water filtration device 2 One or more water quality items include analysis data obtained by on-site measurement using the above-described water quality detection devices 9a to 9c.

The analysis center is a facility that performs manual analysis of sample water outside the sampling site, and analyzes the sent sample water using the required analysis equipment. Sampling and sending of sample water is performed, for example, by a service engineer of a management company that has concluded a maintenance contract for the river water filtration device 2 with each user X to Z periodically visiting customers. The analysis data obtained at the analysis center is transmitted to the remote control device 5 via a dedicated terminal provided in the analysis center and recorded in the analysis data storage unit 52.
On the other hand, the water quality detection devices 9a to 9c perform automatic analysis of sample water at a water sampling site, and are provided at installation sites of the plurality of river water filtration devices 2a to 2c, specifically, river water lines L1a to L1c. Equipment. The analysis data measured by the water quality detection devices 9a to 9c are input to the plurality of river water filtration devices 2a to 2c, transmitted from the plurality of river water filtration devices 2a to 2c to the remote control device 5 via the network 3, It is recorded in the analysis data storage unit 52.

  The remote control unit 51 remotely controls the plurality of river water filtration devices 2a to 2c by communication from a remote place. When the differential pressure between the primary side and the secondary side of the plurality of river water filtration devices 2 increases, the remote control unit 51 stores the analysis data relating to the water quality item of the river water W1 stored in the analysis data storage unit 52. Based on the recent information, remote control is performed for each of the plurality of river water filtration devices 2 so as to suppress the blockage of the turbidity removal membrane module 22.

  The differential pressure between the primary side and the secondary side of the river water filtration device 2 is obtained by measuring the differential pressure between the primary side and the secondary side of the turbidity removal membrane module 22 with a differential pressure gauge (not shown). When the differential pressure measured by the differential pressure gauge increases, the progress of the blockage of the turbidity membrane module 22 is predicted. The differential pressure data of the river water filtration device 2 is stored in a memory of a microcomputer (not shown) of each of the plurality of river water filtration devices 2a to 2c, a database (not shown) of the remote control device 5, or the like.

  The recent information of the analysis data is not limited to the latest data, but is a concept that includes data that is somewhat dated (for example, data for the most recent N items). Since the recent information on the analysis data may require, for example, the number of days to be sent to the analysis center (not shown) of the sample water, the sample water is not collected in the order stored in the analysis data storage unit 52 described later. Judged based on the order of Wednesday. Sample water analysis data and total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD), and adenosine triphosphate (ATP) in river water W1 Even when the analysis data of the detection values of one or more water quality items are mixed and stored in the analysis data storage unit 52, based on the order of the detection date of the river water W1 and the sampling date of the sample water To be judged.

For example, a case will be described in which the average value of the two most recent analysis data is used as the recent information when the sampling date of the sample water and the storage date are different. Here, an operation for suppressing the blockage of the previous turbidity removal membrane module 22 (an operation for increasing the frequency of execution of the reverse cleaning mode, an operation for increasing the frequency of execution of the forward cleaning mode, an operation for adjusting the addition amount of the bactericide, and agglomeration It is assumed that the TOC of the river water is 4 gC / m ³ at the time of setting the operation for adjusting the addition amount of the agent and the operation for adding the intercellular information transmission substance.

  As in the analysis data stored as of February 8 below, for example, at the time of February 8, the order of the storage date of the analysis data stored in the analysis data storage unit 52 is as follows. Analysis data N1 and analysis data N3. The order of the sampling date is analysis data N3 and analysis data N1 in order of date.

◎ Analysis data stored as of February 8 N1: Date of water collection (January 5), TOC 4gC / m ³ , storage date (January 10)
N3: sampling date (February 2), TOC 6 gC / m ³ , storage date (February 7)

  On February 10, analysis data N2 is newly stored on February 10 in the analysis data storage unit 52, as in the analysis data stored as of February 10 below. Thereby, the storage date order of the analysis data stored in the analysis data storage unit 52 is the analysis data N2, the analysis data N3, and the analysis data N1 in order from the newest date. The order of the water sampling dates is different from the order of the storage dates, and is the analysis data N3, the analysis data N2, and the analysis data N1 in the order of date.

◎ Analysis data stored as of February 10 N1: Date of water collection (January 5), TOC 4 gC / m ³ , storage date (January 10)
N2: Date of water collection (January 20), TOC 6 gC / m ³ , storage date (February 10)
N3: Date of water collection (February 2), TOC3gC / m ³ , storage date (February 7)

Here, for example, at the time of February 8, the latest average value ([(4 + 3) /2=3.5]) of the two pieces of analysis data N1 and analysis data N3 is the recent information. At the time of February 8, the average value of the analysis data N1 and N3 is increased from the TOC 4 gC / m ³ at the time of setting the operation for suppressing the blockage of the turbidity removal module 22 last time.
On the other hand, for example, at the time of February 10, the average value ([(6 + 3) /2=4.5]) of the latest two pieces of analysis data N2 and analysis data N3 becomes recent information. As of February 10, the average value of the analytical data N2 and N3 are thus being reduced from TOC4gC / m ³ when setting the occlusion suppressing operation of the last dividing Nigomaku module 22, recently Depending on the timing at which the information is determined, the order of the sample water sampling date and the storage date may differ, but based on the order of the sample water sampling date, the analysis information of the sample water is used as recent information.

Further, the recent information of the analysis data is, for example, about any one or more of chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand, and adenosine triphosphate stored in the analysis data storage unit 52. Even in the case where the sampling date of the sample water is different from the storage date, the data is not limited to the latest data as in the TOC of the river water W1 described above. Data).
Recent data of analysis data in chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD), and adenosine triphosphate (ATP) of river water W1 stored in the analysis data storage unit 52 The explanation is different from the above description of the TOC of the river water W1 only in specific numerical values of chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD), and adenosine triphosphate (ATP). Since the other contents are the same, the description of the TOC of the river water W1 is used, and the description is omitted.

  The remote control unit 51 has a plurality of river water filtration devices 2a to 2c according to an increase in the detection value relating to the water quality item of the river water W1 or an increase in the differential pressure between the primary side and the secondary side of the river water filtration device 2. For each of them, any one of the following operations for suppressing clogging (clogging) of the turbidity removal membrane module 22 is selectively executed by remote control. The operation for suppressing the blockage of the turbidity membrane module 22 includes an operation for increasing the frequency of the reverse cleaning mode in which the primary side of the turbidity membrane module 22 is backwashed, and the order in which the primary side of the turbidity membrane module 22 is sequentially cleaned. An operation for increasing the frequency of execution of the cleaning mode, an operation for adjusting the addition amount of the bactericide added to the river water W1 introduced into the turbidity membrane module 22, and an addition to the river water W1 introduced into the turbidity membrane module 22 An operation for adjusting the addition amount of the flocculant, an operation for adding an intercellular information transmitting substance that promotes biofilm dispersion to the river water W1 introduced to the turbidity removal membrane module 22, and an introduction to the turbidity removal membrane module 22 There is an operation of adding an intercellular information transmitting substance that inhibits biofilm formation to the river water W1.

  When performing an operation to increase the frequency of execution of the reverse cleaning mode and / or the forward cleaning mode, by increasing the frequency of execution of each cleaning mode, the outer surface of the hollow fiber membrane is increased more than before the frequency of increase is increased. It is possible to effectively wash away the cake layer (deposited layer of pollutant) grown in step (1).

  The degree of increase in the execution frequency of the reverse cleaning mode and / or the forward cleaning mode changed by the remote control unit 51 is, for example, the degree of increase in the detection value related to the water quality item of the river water W1 or the primary of the river water filtration device 2 The pressure is appropriately determined according to the degree of increase in the differential pressure between the side and the secondary side. That is, when the degree of increase in the detection value relating to the water quality item of the river water W1 is large or when the degree of increase in the differential pressure between the primary side and the secondary side of the river water filtration device 2 is large, the remote control unit 51 Then, the setting is changed so as to increase the degree of increase in the execution frequency of each cleaning mode. In addition, in the memory of the microcomputer of the remote control device 5, it corresponds to the degree of increase in the detected value related to the water quality item of the river water W1 and the degree of increase in the differential pressure between the primary side and the secondary side of the river water filtration device 2. A data table regarding the frequency of execution of each cleaning mode may be included.

  The remote control unit 51 performs the operation of increasing the frequency of execution of each cleaning mode in the operation of increasing the frequency of execution of the reverse cleaning mode or the forward cleaning mode, and then the river water W1 stored in the analysis data storage unit 52. When the analysis data relating to the water quality item returns to the level before the differential pressure of the plurality of river water filtration devices 2a to 2c increases, the frequency of execution of each washing mode is determined for each of the plurality of river water filtration devices 2. The setting is changed by remote control so that the frequency before the differential pressure of the plurality of river water filtering devices 2a to 2c increases. It should be noted that the level before the differential pressure of the plurality of river water filtering devices 2 increases includes a value in the vicinity of the detection value of the analysis data relating to the water quality item of the river water W1 before the differential pressure increases. Thereby, when the water quality of the river water W1 returns to a good state, the implementation frequency of the reverse cleaning mode or the forward cleaning mode is changed to the previous frequency to suppress waste of water used for membrane cleaning. Can do.

  In the operation of adjusting the addition amount of the bactericidal agent added to the river water W1 introduced into the turbidation membrane module 22, the remote control unit 51 sets a predetermined bactericidal agent for each of the plurality of river water filtration devices 2. Change the setting to increase the amount of added. By increasing the amount of the bactericide added to the river water W1, the growth of microorganisms on the membrane of the turbidity removal membrane module 22 is suppressed, and the formation of biofilm on the membrane surface is suppressed. Rings can be suppressed. Biofouling means membrane fouling (clogging) by microorganisms. Therefore, obstruction | occlusion of the turbidity membrane module 22 can be suppressed.

  In the case of executing an operation for adjusting the addition amount of the flocculant added to the river water W1 introduced into the turbidity removal membrane module 22, the remote control unit 51 performs the TOC of the river water stored in the analysis data storage unit 52. When the pressure increases and the differential pressures of the plurality of river water filtration devices 2 increase, the setting is changed so as to increase the preset addition amount of the flocculant for each of the plurality of river water filtration devices 2. Increasing the amount of flocculant added to the river water W1 makes it easier to agglomerate (flocculate) suspended substances in the water and remove them, suppress the adhesion of algae to the membrane surface, and reduce the algae fouling. Can be suppressed. Algal fouling means fouling (occlusion) of the membrane by algae. Therefore, obstruction | occlusion of the turbidity membrane module 22 can be suppressed.

  In the case of executing an operation of adding an intercellular information transmission substance that promotes biofilm dispersion to the river water W1 introduced into the turbidity removal membrane module 22, the remote control unit 51 intercellular information that promotes biofilm dispersion. The setting is changed for each of the plurality of river water filtration devices 2 so that the transmission substance is started to be added to the river water W1 or the addition amount is increased. Thereby, the intercellular information transmission substance that promotes biofilm dispersion penetrates into the biofilm, and gives the biofilm a signal that induces bacteria to float, thereby dispersing the biofilm. Therefore, obstruction | occlusion of the turbidity membrane module 22 can be suppressed.

  In the case of executing an operation of adding an intercellular information transmission substance that inhibits biofilm formation to the river water W1 introduced into the turbidity removal membrane module 22, the remote control unit 51 intercellular information that inhibits biofilm formation. The setting is changed for each of the plurality of river water filtration devices 2 so that the addition of a transmission substance (for example, AHL) is started to the river water W1 or the addition amount is increased. Thereby, the intercellular information transmission substance (for example, AHL) which inhibits biofilm formation can suppress quorum sensing, and can suppress the growth of slime. Therefore, obstruction | occlusion of the turbidity membrane module 22 can be suppressed.

  The degree of increase in the addition amount of the bactericide changed by the remote control unit 51, the addition amount of the flocculant, the addition amount of the intercellular information transmitting substance that promotes biofilm dispersion, and the inhibition of biofilm formation The degree of addition of the intercellular communication substance depends on, for example, the degree of increase in the detected value relating to the water quality item of the river water W1 and the degree of increase in the differential pressure between the primary side and the secondary side of the river water filtration device 2 It is determined appropriately. That is, when the degree of increase in the detection value relating to the water quality item of the river water W1 is large or when the degree of increase in the differential pressure between the primary side and the secondary side of the river water filtration device 2 is large, the remote control unit 51 The setting is changed so as to increase the degree of increase of the bactericidal agent or the flocculant and the addition amount of the intercellular information transmitting substance. In addition, in the memory of the microcomputer of the remote control device 5, it corresponds to the degree of increase in the detected value related to the water quality item of the river water W1 and the degree of increase in the differential pressure between the primary side and the secondary side of the river water filtration device 2. In addition, a data table regarding the degree of increase of the bactericidal agent or the flocculant and the addition amount of the intercellular information transmitting substance may be provided.

  The remote management control system 1 of the river water filtration apparatus configured as described above can execute the processes of the following first remote control example and second remote control example for each of the users X to Z. Processing of the first remote control example and the second remote control example will be described with reference to flowcharts.

A 1st remote control example is an example in the case of performing operation which increases the implementation frequency of back washing mode and / or the implementation frequency of forward washing mode about river water filtration apparatus 2a-2c. 4 to 6, the first operation example to the third operation example of the first remote control example will be described.
The second remote control example is an operation for adjusting the addition amount of a bactericidal agent or an aggregating agent for the river water filtration devices 2a to 2c, or an intercellular information transmission substance or biofilm formation that promotes biofilm dispersion in the river water W1. This is an example in which an operation of adding an intercellular information transmission substance that inhibits the above is executed by remote control. 7 to 9, the fourth operation example to the sixth operation example of the second remote control example will be described.
For the three-digit number of the step S number in each flowchart, the hundreds of the step S number is a number corresponding to the number of the operation example number. For example, in the first operation example to the sixth operation example in the step S number, the hundreds place is “1” to “6”.

  First, the 1st remote control example of the remote management control system 1 of a river water filtration apparatus is demonstrated. The first remote control example is a control example in which an operation for increasing the frequency of execution of the reverse cleaning mode or an operation for increasing the frequency of execution of the forward cleaning mode is executed. A first operation example of the first remote control example will be described. FIG. 4 is a flowchart showing the processing procedure of the first operation example of the remote management control system 1 for the river water filtration device of the present embodiment. The process of the flowchart shown in FIG. 4 is repeatedly executed during the operation of the remote management control system 1 of the river water filtration device. Moreover, the several river water filtration apparatus 2a-2c is performing the water treatment process and the washing process (back washing mode and / or forward washing mode).

  In step S121 in the river water filtration apparatus 2a shown in FIG. 4, the total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand of the river water W1 introduced into the river water filtration apparatus 2a (BOD) and adenosine triphosphate (ATP) are detected by the water quality detection device 9a according to one or more water quality items. Data of the detected value relating to the detected water quality item is transmitted to the remote control device 5 as analysis data.

  In step S111 of the remote control device 5, the analysis data of the detected value relating to the water quality item of the river water W1 detected in step S121 of the river water filtration device 2a is stored in the analysis data storage unit 52.

  In step S131 in the river water filtration device 2b, total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD) of the river water W1 introduced into the river water filtration device 2b, And adenosine triphosphate (ATP), a detection value relating to one or more water quality items is detected by the water quality detection device 9b. Data of the detected value relating to the detected water quality item is transmitted to the remote control device 5 as analysis data.

  In step S112 of the remote control device 5, the analysis data of the detected value relating to the water quality item of the river water W1 detected in step S131 of the river water filtration device 2b is stored in the analysis data storage unit 52.

  In step S141 in the river water filtration device 2c, total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD) of the river water W1 introduced into the river water filtration device 2c, And adenosine triphosphate (ATP) are detected by the water quality detection device 9c according to one or more water quality items. Data of the detected value relating to the detected water quality item is transmitted to the remote control device 5 as analysis data.

  In step S113 of the remote control device 5, the analysis data of the detected value relating to the water quality item of the river water W1 detected in step S141 of the river water filtration device 2c is stored in the analysis data storage unit 52.

  In step S <b> 114 in the remote control device 5, the remote control device 5 determines whether or not the detection value related to the water quality item stored in the analysis data storage unit 52 has increased. Here, the remote control device 5 does not use the analysis data of the detection values relating to the water quality items stored in the analysis data storage unit 52 but the river data filtering devices 2a to 2c in the order stored in the analysis data storage unit 52. Based on the recent information based on the time-series analysis data of the detection date of the river water W1, the average value of the detection values related to the water quality item is calculated. For example, the latest two pieces of analysis data are used as the recent information. Specifically, the analysis data of the sample water detected in step S141 in the river water filtration device 2c and the analysis data of the sample water detected in step S131 in the river water filtration device 2b are the two most recent analysis data. The average value of the detection values related to the water quality item is calculated. When it is determined by the remote control device 5 that the detection value related to the water quality item has increased (YES), the process proceeds to step S115. On the other hand, when it is determined by the remote control device 5 that the detection value related to the water quality item has not increased (NO), the process proceeds to step S116.

  In step S115 in the remote control device 5, the remote control device 5 determines whether or not the differential pressure has increased in each of the plurality of river water filtration devices 2a to 2c. When it is determined by the remote control device 5 that the differential pressure has increased in each of the plurality of river water filtration devices 2a to 2c (YES), the process proceeds to step S117. On the other hand, when it is determined by the remote control device 5 that the differential pressure has not increased in each of the plurality of river water filtration devices 2a to 2c (NO), the process ends (returns to step S111).

  In step S116 in the remote control device 5 in the case where it is determined that the detection value related to the water quality item has not increased in step S114 (NO), the remote control device 5 performs the reverse cleaning mode and / or the forward cleaning mode. It is determined whether or not an operation for increasing the value has been executed previously and whether or not the detection value relating to the water quality item stored in the analysis data storage unit 52 has returned to a level (for example, less than a preset reference level) To do. When it is determined by the remote control device 5 that an operation for increasing the frequency of execution of the reverse cleaning mode and / or the forward cleaning mode has been performed before and the detection value related to the water quality item has returned to the standard (YES) The process proceeds to step S117. On the other hand, it has been determined by the remote control device 5 that the operation for increasing the frequency of execution of the reverse cleaning mode and / or the forward cleaning mode has not been performed before, or the detection value related to the water quality item has not returned to the standard. In the case (NO), the process ends (returns to step S111).

  In step S117 in the remote control device 5, in the processing after it is determined that the differential pressure has increased in each of the plurality of river water filtration devices 2a to 2c in step S115 (YES), the remote control device 5 For each of the filtering devices 2a to 2c, an operation for increasing the execution frequency of the reverse cleaning mode and / or an operation for increasing the execution frequency of the forward cleaning mode is executed. Thereby, the pollutant adhering to the film | membrane of the turbidity-elimination membrane module 22 can be washed away more effectively than before increasing the implementation frequency of each washing | cleaning mode.

  Moreover, in step S117 in the remote control device 5, it is determined that the detection value related to the water quality item in step S116 has returned to the standard (YES), the remote control device 5 includes a plurality of river water filtration devices 2a. For each of ˜2c, the setting frequency is changed by remote control so that the frequency of execution of the reverse cleaning mode and / or the frequency of execution of the forward cleaning mode is the frequency before the differential pressure of the river water filtration devices 2a to 2c increases. Thereby, when the water quality of the river water W1 returns to the original level, the frequency of performing each cleaning mode is returned to the frequency before the differential pressure of the river water filtration devices 2a to 2c is increased, and used for membrane cleaning. Waste water can be suppressed. After the process of step S117, the process of the remote control device 5 ends (returns to step S111).

  In steps S122, S132, and S142 in the river water filtration devices 2a, 2b, and 2c, the frequency of executing the reverse cleaning process of the turbidity removal membrane modules 22a to 22c or the frequency of executing the flushing operation is determined by remote control of the remote control device 5. The setting is changed. After the processes of steps S122, S132, and S142, the processes of the river water filtration devices 2a, 2b, and 2c are completed (return to steps S121, S131, and S141).

  Next, the 2nd operation example of the 1st remote control example of the remote management control system 1 of a river water filtration apparatus is demonstrated. FIG. 5 is a flowchart showing a processing procedure of the second operation example of the remote management control system 1 for the river water filtration device of the present embodiment. The second operation example shown in FIG. 5 is obtained by detecting the detection value related to the water quality item of the river water W1 by the water quality detection device 9c in the first operation example shown in FIG. The main difference is that the sample water of the sampled river water W1 is analyzed at the analysis center (not shown) as the analysis data of the detected value relating to the water quality item. The second operation example is the same as the first operation example in other points.

  In step S221 in the river water filtration device 2a shown in FIG. 5, sample water of the river water W1 introduced into the river water filtration device 2a is collected. The sample water of the river water W1 collected is sent to the analysis center (not shown), and the total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical at the time of sampling the river water W1. It is analyzed as analysis data of detection values relating to one or more water quality items of oxygen demand (BOD) and adenosine triphosphate (ATP).

  In step S211 in the remote control device 5, the analysis data of the detection value relating to the water quality item of the river water W1 collected in step S221 of the river water filtration device 2a is stored in the analysis data storage unit 52.

  In step S231 in the river water filtration device 2b, sample water of the river water W1 introduced into the river water filtration device 2b is collected. The sample water of the river water W1 collected is sent to the analysis center (not shown), and the total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical at the time of sampling the river water W1. It is analyzed as analysis data of detection values relating to one or more water quality items of oxygen demand (BOD) and adenosine triphosphate (ATP).

  In step S212 of the remote control device 5, the analysis data of the detected value relating to the water quality item of the river water W1 collected in step S231 of the river water filtration device 2b is stored in the analysis data storage unit 52.

  In step S241 in the river water filtration device 2c, sample water of the river water W1 introduced into the river water filtration device 2c is collected. The sample water of the river water W1 collected is sent to the analysis center (not shown), and the total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical at the time of sampling the river water W1. It is analyzed as analysis data of detection values relating to one or more water quality items of oxygen demand (BOD) and adenosine triphosphate (ATP).

  In step S213 in the remote control device 5, the analysis data of the detection value relating to the water quality item of the river water W1 collected in step S241 of the river water filtration device 2c is stored in the analysis data storage unit 52.

  In step S214 in the remote control device 5, the remote control device 5 determines whether or not the detection value relating to the water quality item stored in the analysis data storage unit 52 has increased. Here, the remote control device 5 does not use the analysis data of the detection values relating to the water quality items stored in the analysis data storage unit 52 but the river data filtering devices 2a to 2c in the order stored in the analysis data storage unit 52. Based on the recent information based on the time-series analysis data of the detection date of the river water W1, the average value of the detection values related to the water quality item is calculated. For example, the latest two pieces of analysis data are used as the recent information. Specifically, the analysis data of the sample water detected in step S241 in the river water filtration device 2c and the analysis data of the sample water detected in step S231 in the river water filtration device 2b are the two most recent analysis data. The average value of the detection values related to the water quality item is calculated. When it is determined by the remote control device 5 that the detection value related to the water quality item has increased (YES), the process proceeds to step S215. On the other hand, when it is determined by the remote control device 5 that the detection value related to the water quality item has not increased (NO), the process proceeds to step S216.

  The operations of steps S215 to S217 in the remote control device 5, step S222 in the river water filtration device 2a, step S232 in the river water filtration device 2b, and step S242 in the river water filtration device 2c are the same as those in the remote control device 5 of the first operation example. Steps S115 to S117, step S122 in the river water filtration device 2a, step S132 in the river water filtration device 2b, and step S142 in the river water filtration device 2c are the same as those in FIG.

Next, the 3rd operation example of the 1st remote control example of the remote management control system 1 of a river water filtration apparatus is demonstrated. FIG. 6 is a flowchart showing a processing procedure of the third operation example of the remote management control system 1 for the river water filtration device of the present embodiment. The process of the flowchart shown in FIG. 6 is repeatedly executed during the operation of the remote management control system 1 of the river water filtration device. Moreover, the some river water filtration apparatus 2a-2c is performing the water treatment process and the washing | cleaning process.
The third operation example in FIG. 6 differs from the first operation example and the second operation example in FIG. 4 and FIG. 5 in the analysis data acquisition method, acquisition time, and number of acquisitions.

  In step S321 in the river water filtration device 2a shown in FIG. 6, sample water of the river water W1 introduced into the river water filtration device 2a is collected. The sample water of the river water W1 collected is sent to the analysis center (not shown), and the total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical at the time of sampling the river water W1. It is analyzed as analysis data of detection values relating to one or more water quality items of oxygen demand (BOD) and adenosine triphosphate (ATP).

  In step S312 in the remote control device 5, the analysis data of the detection value relating to the water quality item of the river water W1 sampled in step S321 of the river water filtration device 2a is delayed by several days from the sampling date of the sample water, for example, It is stored in the analysis data storage unit 52.

  In step S322 in the river water filtration device 2a, total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD) of the river water W1 introduced into the river water filtration device 2a, And adenosine triphosphate (ATP) are detected by the water quality detection device 9c according to one or more water quality items. Data of the detected value relating to the detected water quality item is transmitted to the remote control device 5 as analysis data.

  In step S311 in the remote control device 5, for example, the analysis data of the detected value relating to the water quality item of the river water W1 detected in step S322 of the river water filtration device 2a at an earlier time than step S312 is the analysis data storage unit 52. Stored in

  In step S331 in the river water filtration device 2b, sample water of the river water W1 introduced into the river water filtration device 2b is collected. The sample water of the river water W1 collected is sent to the analysis center (not shown), and the total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical at the time of sampling the river water W1. It is analyzed as analysis data of detection values relating to one or more water quality items of oxygen demand (BOD) and adenosine triphosphate (ATP).

  In step S314 in the remote control device 5, the analysis data of the detection value relating to the water quality item of the river water W1 sampled in step S331 of the river water filtration device 2b is, for example, delayed by several days from the sampling date of the sample water. It is stored in the analysis data storage unit 52.

  In step S332 in the river water filtration device 2b, total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD) of the river water W1 introduced into the river water filtration device 2b, And adenosine triphosphate (ATP) are detected by the water quality detection device 9c according to one or more water quality items. Data of the detected value relating to the detected water quality item is transmitted to the remote control device 5 as analysis data.

  In step S313 in the remote control device 5, for example, the analysis data of the detection value relating to the water quality item of the river water W1 detected in step S332 of the river water filtration device 2b at a time earlier than step S314 is the analysis data storage unit 52. Stored in

  The operations of steps S315 to S318 in the remote control device 5, step S323 in the river water filtration device 2a, step S333 in the river water filtration device 2b, and step S341 in the river water filtration device 2c are the same as those in the remote control device 5 of the first operation example. Since the operations are the same as steps S114 to S117, step S122 in the river water filtration device 2a, step S132 in the river water filtration device 2b, and step S142 in the river water filtration device 2c, description thereof will be omitted.

  Here, in the river water filtering device 2c, the analysis data of the detection value relating to the water quality item of the river water W1 is not individually acquired at the time before step S341. However, the setting of the river water filtering device 2c is changed by remote control of the remote control device 5 so that the preset washing timing is the optimum washing timing corresponding to the water quality fluctuation. Here, in any of the plurality of river water filtration devices 2a to 2c, the river water W1 is introduced from the same river water source. Therefore, also in the river water filtration apparatus 2c from which individual analysis data has not been acquired, the setting of the cleaning timing is changed by remote control. Thereby, several river water filtration apparatus 2a-2c can be comprehensively managed as a group of river water filtration apparatuses.

  Next, the 2nd remote control example of the remote management control system 1 of a river water filtration apparatus is demonstrated. In the second remote control example, an operation for adjusting the addition amount of the bactericidal agent or the flocculant, or an intercellular information transmission material that promotes biofilm dispersion in the river water W1 or an intercellular information transmission material that inhibits biofilm formation. It is an example of control which performs operation to add by remote control. The fourth to sixth operation examples of the second remote control example will be described.

  The fourth operation example to the sixth operation example (FIGS. 7 to 9) of the second remote control example are the same as the first operation example to the third operation example (FIGS. 4 to 6) of the first remote control example described above. An operation to increase the frequency of execution of the mode and / or an operation to increase the frequency of execution of the forward cleaning mode by remote control, whereas an operation to adjust the addition amount of the disinfectant or flocculant, or a river The main difference is that the operation of adding an intercellular information transmission substance that promotes biofilm dispersion or an intercellular information transmission substance that inhibits biofilm formation to water W1 is changed by remote control. Regarding the timing to store in the analysis data storage unit 52 and the timing to acquire sample water, the fourth remote control example to the sixth remote control example (FIGS. 7 to 9) are the first remote control respectively. This corresponds to the first operation example to the third operation example (FIGS. 4 to 6) of the example, and is the same as the timing of the first operation example to the third operation example (FIGS. 4 to 6) of the first remote control example. It is.

  For the fourth operation example to the sixth operation example of the second remote control example, the steps S116, S216 and S317 in the first operation example to the third operation example of the first remote control example of FIGS. The process of “returning the detection value to the level” is not executed.

  A fourth operation example of the second remote control example of the remote management control system 1 for the river water filtration device will be described. FIG. 7 is a flowchart showing a processing procedure of a fourth operation example of the remote management control system 1 for a river water filtration device according to the present embodiment. The process of the flowchart shown in FIG. 7 is repeatedly performed during the operation of the remote management control system 1 of the river water filtration device.

  The processing of step S421 in the river water filtration device 2a shown in FIG. 7, step S431 in the river water filtration device 2b, step S441 in the river water filtration device 2c, and steps S411 to S413 in the remote control device 5 are the river water shown in FIG. The processing corresponds to step S121 in the filtering device 2a, step S131 in the river water filtering device 2b, step S141 in the river water filtering device 2c, and steps S111 to S113 in the remote control device 5, respectively. Therefore, description of step S421 in the river water filtration device 2a, step S431 in the river water filtration device 2b, step S441 in the river water filtration device 2c, and steps S411 to S413 in the remote control device 5 is omitted.

  In step S414 in the remote control device 5, the remote control device 5 determines whether or not the detection value relating to the water quality item stored in the analysis data storage unit 52 has increased. Here, the remote control device 5 does not use the analysis data of the detection values relating to the water quality items stored in the analysis data storage unit 52 but the river data filtering devices 2a to 2c in the order stored in the analysis data storage unit 52. Based on the recent information based on the time-series analysis data of the detection date of the river water W1, the average value of the detection values related to the water quality item is calculated. For example, the latest two pieces of analysis data are used as the recent information. Specifically, the analysis data of the sample water detected in step S441 in the river water filtration device 2c and the analysis data of the sample water detected in step S431 in the river water filtration device 2b are the two most recent analysis data. The average value of the detection values related to the water quality item is calculated. When it is determined by the remote control device 5 that the detection value related to the water quality item has increased (YES), the process proceeds to step S415. On the other hand, when it is determined by the remote control device 5 that the detection value related to the water quality item has not increased (NO), the process ends (returns to step S411).

  In step S415 in the remote control device 5, the remote control device 5 determines whether or not the differential pressure has increased in each of the plurality of river water filtration devices 2a to 2c. When it is determined by the remote control device 5 that the differential pressure has increased in each of the plurality of river water filtration devices 2a to 2c (YES), the process proceeds to step S416. On the other hand, when it is determined by the remote control device 5 that the differential pressure has not increased in each of the plurality of river water filtration devices 2a to 2c (NO), the process ends (returns to step S411).

  In step S416 in the remote control device 5, the remote control device 5 adds the amount of the bactericide added to the river water W1 introduced into the turbidity membrane module 22 to each of the plurality of river water filtration devices 2a to 2c. Operation to change the setting to increase, operation to change the setting to increase the amount of flocculant added to the river water W1 introduced to the turbidity membrane module 22, and introduction to the turbidity membrane module 22 Operation for changing the setting so as to add an intercellular information transmitting substance that promotes biofilm dispersion to the river water W1, and intercellular information that inhibits biofilm formation in the river water W1 introduced into the turbidity membrane module 22 Any one of the operations to change the setting to add the transmitter substance is performed by remote control.

When the operation of changing the setting is performed so as to increase the amount of the bactericide added to the river water W1 introduced into the turbidity membrane module 22, the propagation of microorganisms to the membrane of the turbidity membrane module 22 is performed. Suppressing and suppressing the formation of a biofilm on the membrane surface can suppress biofouling. As a result, blockage of the turbidity removal membrane module 22 can be suppressed.
In addition, when an operation for changing the setting so as to increase the amount of the flocculant added to the river water W1 introduced into the turbidity membrane module 22 is performed, the amount of the flocculant added to the river water W1. By increasing the value, suspended substances in water can be aggregated (floced) and easily removed. In particular, when the TOC of river water stored in the analysis data storage unit 52 increases and the differential pressure of the plurality of river water filtration devices 2 increases, the amount of flocculant added to the river water W1 is increased. Thereby, adhesion of the algae to the membrane surface can be suppressed, and algae fouling can be suppressed. As a result, blockage of the turbidity removal membrane module 22 can be suppressed.

Moreover, when performing operation which changes a setting so that the intercellular information transmission material which accelerates | stimulates biofilm dispersion | distribution may be added to the river water W1 introduce | transduced into the turbidity membrane module 22, the cell which promotes biofilm dispersion | distribution The intermediary information transfer substance penetrates into the biofilm and gives the biofilm a signal that induces bacteria to float, thereby dispersing the biofilm. As a result, blockage of the turbidity removal membrane module 22 can be suppressed.
In addition, in the case of performing an operation of changing the setting so as to add an intercellular information transmission substance that inhibits biofilm formation to the river water W1 introduced into the turbidity membrane module 22, cells that inhibit biofilm formation An intermediary communication substance (for example, AHL) can suppress quorum sensing and suppress the growth of slime. As a result, blockage of the turbidity removal membrane module 22 can be suppressed.
After the process of step S416, the process of the remote control device 5 ends (returns to step S411).

  In steps S422, S432, and S442 in the river water filtration devices 2a, 2b, and 2c, remote control is performed so that the amount of the disinfectant added to the river water W1 introduced into the river water filtration devices 2a, 2b, and 2c is increased. The setting is changed by remote control of the device 5, and the setting is changed by remote control of the remote control device 5 so that the amount of the flocculant added to the river water W1 introduced into the river water filtration devices 2a, 2b, 2c is increased. The remote control device 5 is remote so that the addition of an intercellular information transmission substance that promotes biofilm dispersion is started or the addition amount is increased in the river water W1 introduced into the river water filtration devices 2a, 2b, 2c. Addition of intercellular information transmitters that inhibit biofilm formation to river water W1 that is changed by control or introduced into river water filtration devices 2a, 2b, and 2c is started. Set changed by remote control of the remote control device 5 as in or added amount is increased. After the processing of steps S422, S432, and S442, the processing of the river water filtration devices 2a, 2b, and 2c ends (returns to steps S421, S431, and S441).

  A fifth operation example of the second remote control example of the remote management control system 1 for the river water filtration device will be described. FIG. 8 is a flowchart showing the processing procedure of the fifth operation example of the remote management control system 1 for the river water filtration device of the present embodiment. The process of the flowchart shown in FIG. 8 is repeatedly executed during the operation of the remote management control system 1 of the river water filtration device.

  The processing of step S521 in the river water filtration device 2a shown in FIG. 8, step S531 in the river water filtration device 2b, step S541 in the river water filtration device 2c, and steps S511 to S513 in the remote control device 5 are the river water shown in FIG. The processing corresponds to step S121 in the filtering device 2a, step S131 in the river water filtering device 2b, step S141 in the river water filtering device 2c, and steps S111 to S113 in the remote control device 5, respectively. Therefore, description of step S521 in the river water filtration device 2a, step S531 in the river water filtration device 2b, step S541 in the river water filtration device 2c, and steps S511 to S513 in the remote control device 5 is omitted.

  The processing of steps S514 to S516 in the remote control device 5, S522 in the river water filtration device 2a, S532 in the river water filtration device 2b, and S542 in the river water filtration device 2c is performed in steps S414 to S416 in the remote control device 5 shown in FIG. , S422 in the river water filtration device 2a, S432 in the river water filtration device 2b, and S442 in the river water filtration device 2c are the same as the processing in steps S514 to S516 in the remote control device 5, and steps S514 in the remote control device 5 Description of S516, S522 in the river water filtration device 2a, S532 in the river water filtration device 2b, and S542 in the river water filtration device 2c is omitted.

  A sixth operation example of the second remote control example of the remote management control system 1 for the river water filtration device will be described. FIG. 9 is a flowchart showing the processing procedure of the sixth operation example of the remote management control system 1 for the river water filtration device of the present embodiment. The process of the flowchart shown in FIG. 9 is repeatedly executed during the operation of the remote management control system 1 of the river water filtration device.

  The processing of steps S621 and S622 in the river water filtration device 2a shown in FIG. 9, steps S631 and S632 in the river water filtration device 2b, and steps S611 to S614 in the remote control device 5 are the steps in the river water filtration device 2a shown in FIG. This corresponds to S321 and S322, steps S331 and S332 in the river water filtration device 2b, and steps S311 to S314 in the remote control device 5, respectively, and is the same as each processing. Therefore, explanation of steps S621 and S622 in the river water filtration device 2a, steps S631 and S632 in the river water filtration device 2b, and steps S611 to S614 in the remote control device 5 are omitted.

  The processing of steps S615 to S617 in the remote control device 5, S623 in the river water filtration device 2a, S633 in the river water filtration device 2b, and S641 in the river water filtration device 2c is performed in steps S414 to S416 in the remote control device 5 shown in FIG. , S422 in the river water filtration device 2a, S432 in the river water filtration device 2b, and S442 in the river water filtration device 2c are the same as steps S615 to S617 in the remote control device 5, S623 in the river water filtration device 2a, Description of S633 in the river water filtration device 2b and S641 in the river water filtration device 2c is omitted.

According to the remote management control system 1 of the river water filtration device of the present embodiment, for example, the following effects are exhibited.
The remote management control system 1 of the river water filtration apparatus of this embodiment removes the pollutants contained in the river water W1 by introducing the river water W1 from the same river water source 4 into the turbidity membrane modules 22a to 22c, and performs processing. A plurality of river water filtration devices 2a-2c for producing water W2, a remote control unit 51 for remotely controlling the plurality of river water filtration devices 2a-2c by communication from a remote location, and a plurality of obtained river water filtration devices 2a Any one of total organic carbon (TOC), chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand (BOD), and adenosine triphosphate (ATP) in river water W1 introduced in 2c An analysis data storage unit 52 that stores analysis data relating to the above water quality items, and the remote control unit 51 has increased differential pressure between the primary side and the secondary side of the plurality of river water filtration devices 2a to 2c. In case Based on the recent information of the analysis data related to the water quality item of the river water W1 stored in the analysis data storage unit 52, the primary side of the turbidity membrane modules 22a to 22c for each of the plurality of river water filtration devices 2a to 2c. Is introduced into the turbidity membrane modules 22a to 22c. An operation for adjusting the amount of the bactericide added to the river water W1, an operation for adjusting the amount of the flocculant added to the river water W1 introduced to the turbidity membrane modules 22a to 22c, and the turbidity membrane module 22a to Operation for adding an intercellular information transmitting substance that promotes biofilm dispersion to river water W1 introduced into 22c, and introduction into turbidity membrane modules 22a-22c Run by remote control one of the operations of adding intercellular mediators inhibit biofilm formation on river water W1.

  Therefore, when the river water quality of the same river water source 4 fluctuates, in the plurality of river water filtration devices 2a to 2c, an operation for suppressing the blocking of the turbidity membrane modules 22a to 22c is executed by remote control, The river water filtration devices 2a to 2c can be comprehensively managed as a group of river water filtration devices.

When an operation for increasing the frequency of execution of the reverse cleaning mode and / or an operation for increasing the frequency of execution of the forward cleaning mode is performed as an operation for suppressing the blockage of the turbidity removal membrane modules 22a to 22c, The cake layer (deposition layer of the pollutant) grown on the outer surface can be washed away effectively. As a result, a decrease in the permeation flux of the turbidity removal membrane module 22 can be suppressed and maintained in a predetermined range.
Moreover, when operation which changes to the setting which increases the addition amount of the coagulant | flocculant added to the river water W1 introduce | transduced into the turbidity membrane module 22 is performed as operation which suppresses obstruction | occlusion of the turbidity membrane modules 22a-22c. Can increase the amount of the flocculant added to the river water W1 so that suspended substances in the water can be aggregated (floced) and easily removed. As a result, a decrease in the permeation flux of the turbidity removal membrane module 22 can be suppressed and maintained in a predetermined range.

Moreover, when performing operation which adds the intercellular information transmission substance which promotes biofilm dispersion | distribution to the river water W1 introduce | transduced into the turbidity membrane module 22 as operation which suppresses obstruction | occlusion of the turbidity membrane modules 22a-22c. In this case, an intercellular signal transmitting substance that promotes biofilm dispersion penetrates into the biofilm, and gives the biofilm a signal that induces bacteria to float, thereby dispersing the biofilm. As a result, a decrease in the permeation flux of the turbidity removal membrane module 22 can be suppressed and maintained in a predetermined range.
Moreover, as operation which suppresses obstruction | occlusion of the turbidity membrane module 22a-22c, operation which changes to the setting which adds the intercellular information transmission substance which inhibits biofilm formation to the river water W1 introduce | transduced into the turbidity membrane module 22 is carried out. When executed, an intercellular signal transmitter (eg, AHL) that inhibits biofilm formation can suppress quorum sensing and suppress slime growth. As a result, a decrease in the permeation flux of the turbidity removal membrane module 22 can be suppressed and maintained in a predetermined range.

  Moreover, in the remote management control system 1 of the river water filtration apparatus of the present embodiment, the remote control unit 51 performs an operation for increasing the frequency of execution of the reverse cleaning mode and / or an operation for increasing the frequency of execution of the forward cleaning mode. In this case, after performing an operation for increasing the frequency of execution of the reverse cleaning mode and / or an operation for increasing the frequency of execution of the forward cleaning mode, the analysis relating to the water quality item of the river water W1 stored in the analysis data storage unit 52 is performed. When the data returns to the level before the differential pressure of the plurality of river water filtration devices 2a to 2c increases, the frequency and / or order of the reverse cleaning mode for each of the plurality of river water filtration devices 2a to 2c. The setting frequency of the cleaning mode is changed by remote control so that the frequency before the differential pressure of the plurality of river water filtration devices 2a to 2c increases.

  Therefore, when performing an operation to increase the frequency of execution of each washing mode in the river water filtration device 2, the analysis data related to the water quality item of the river water W1 stored in the analysis data storage unit 52 is a plurality of river water filtrations. When the differential pressure of the devices 2a to 2c returns to the level before the increase, the setting is changed so that the frequency becomes optimum. As a result, the frequency of execution of the reverse cleaning mode and / or the frequency of execution of the forward cleaning mode is optimized, wasteful consumption of cleaning water is suppressed, and the quality of the treated water W2 is maintained.

  Moreover, in the remote management control system 1 of the river water filtration apparatus of this embodiment, the remote control part 51 adjusts the addition amount of the coagulant | flocculant added to the river water W1 introduce | transduced into the turbidity membrane modules 22a-22c. In the case of executing the operation, when the TOC of the river water W1 stored in the analysis data storage unit 52 increases and the differential pressure between the plurality of river water filtration devices 2a to 2c increases, the plurality of river water filtration devices 2a. For each of ˜2c, the setting is changed by remote control so as to increase the preset amount of the flocculant added.

  Therefore, when performing operation which adjusts the addition amount of the coagulant | flocculant added to the river water W1 introduce | transduced into the turbidity membrane modules 22a-22c in the river water filter apparatus 2, several river water filter apparatuses 2a-2c are When the TOC of the river water W1 increases and the differential pressure of the river water filtration devices 2a to 2c increases, it is predicted that the blockage has progressed due to algae adhering to and depositing on the turbidity membrane modules 22a to 22c. And algal fouling can be suppressed appropriately by increasing the addition amount of the flocculant added to the river water W1 introduced into the turbidity removal membrane modules 22a to 22c.

As mentioned above, although preferred embodiment of this invention was described, this invention can be implemented with a various form, without being limited to embodiment mentioned above.
For example, in the above-described embodiment, three river water filtration devices have been described as a plurality of river water filtration devices, but the present invention is not limited to this. Since the present invention is intended for remote control of a group of river water filtration devices into which river water from the same river water source is introduced, the present invention is also applied to a group of river water filtration devices of tens to hundreds of scales. It is possible.

  Moreover, in the above-mentioned embodiment, although the setting change of the operation performed in all the apparatuses of several river water filtration apparatus 2a-2c was carried out by remote control, it is not restrict | limited to this. You may change the setting of the operation performed in the some river water filtration apparatus 2a-2c apparatus by remote control.

  In the above-described embodiment, an example in which the latest two pieces of analysis data are used as the recent information has been described. However, the present invention is not limited to this example. For example, the latest three pieces of analysis data are used. Also good.

  In the above-described embodiment, in the first operation example, the number of detections of the detection value relating to the water quality item of the river water is once for each device, and the analysis data is acquired and the analysis data storage unit 52 is obtained. The total number of times stored in was 3 times. In the second operation example, the sample water was sampled once for each apparatus, and the analysis data was acquired and stored in the analysis data storage unit 52 a total of three times. In the third operation example, in the river water filtration device 2a, the number of samplings of the sample water and the number of detections of the detection value relating to the water quality item of the river water are each one, and the sample water in the river water filtration device 2b is The number of times of sampling and detection of the detection value relating to the water quality item of the river water was one each, and the total number of times of acquiring the analysis data and storing it in the analysis data storage unit 52 was four. However, the number of times the analysis data is stored in the analysis data storage unit 52 is not limited to this. In the present invention, when analysis data in a plurality of river water filtration devices is obtained, the number of times the analysis data is acquired is not limited, and the analysis data in the plurality of river water filtration devices is sequentially stored in the analysis data storage unit 52. To do.

DESCRIPTION OF SYMBOLS 1 Remote management control system of river water filtration apparatus 2, 2a-2c River water filtration apparatus 22, 22a-22a Turbidity membrane module 4 River water source 51 Remote control part 52 Analysis data storage part W1 River water W2, W2a-W2c Treated water

Claims (3)

A plurality of river water filtration devices that are installed in the same river water source region, and remove the pollutants contained in the river water by introducing the river water from the same river water source into the turbidity membrane module, and produce treated water; ,
Remotely located remotely from the plurality of river water filtration devices, connected to the plurality of river water filtration devices in a communicable manner, and remotely controlling the plurality of river water filtration devices by communication from a remote location A control unit;
Any one or more of total organic carbon, chlorophyll, water temperature, total phosphorus, total nitrogen, biochemical oxygen demand, and adenosine triphosphate of river water introduced into the acquired plurality of river water filtration devices An analysis data storage unit for storing analysis data relating to water quality items,
The analysis data is time-series analysis data of river water sampling date or detection date in the plurality of river water filtration devices including other river water filtration devices different from the river water filtration device to be changed,
The remote control unit, based on the previous SL analysis data storage unit said plurality of analytical data information which is information of the analytical data in river water filtration device according to the water quality of the stored river water, the analytical data storage When the detected value of the water quality item of the river water stored in the section increases, it is determined whether the differential pressure between the primary side and the secondary side of the plurality of river water filtration devices has increased, the plurality of When the differential pressure between the primary side and the secondary side of the river water filtration device is determined to have increased , reverse cleaning is performed to back-wash the primary side of the turbidity membrane module for each of the plurality of river water filtration devices Operation to increase the frequency of mode operation, operation to increase the frequency of sequential cleaning mode to sequentially clean the primary side of the turbidity membrane module, addition of fungicide added to river water introduced to the turbidity membrane module operation to adjust the amount, Beauty, executed by a remote control one of the operations of adjusting the amount of flocculant to be added to the river water to be introduced into the dividing Nigomaku module,
Remote management control system for river water filtration equipment. The remote control unit performs an operation of increasing the frequency of execution of the reverse cleaning mode when performing an operation of increasing the frequency of execution of the reverse cleaning mode and / or an operation of increasing the frequency of execution of the forward cleaning mode. Alternatively, after performing an operation to increase the frequency of performing the sequential cleaning mode, the analysis data related to the water quality item stored in the analysis data storage unit is the differential pressure of the plurality of river water filtration devices. When the level returns to the level before the increase, the frequency of the reverse cleaning mode and / or the frequency of execution of the forward cleaning mode is set for each of the plurality of river water filtering devices. Change the setting by remote control so that the frequency before the differential pressure increases,
The remote management control system of the river water filtration apparatus of Claim 1. When the remote control unit executes an operation of adjusting the amount of the flocculant added to the river water introduced into the turbidity membrane module, the total organic carbon of the river water stored in the analysis data storage unit And the differential pressure of the plurality of river water filtration devices is increased by remote control so as to increase the preset amount of the flocculant added to each of the plurality of river water filtration devices. Change settings,
The remote management control system of the river water filtration apparatus of Claim 1.

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