JP7650482B2 - Remote monitoring system for coagulation and settling equipment - Google Patents

Description

The present invention relates to a remote monitoring system for a coagulation sedimentation device, and more specifically, to a remote monitoring system for a coagulation sedimentation device that monitors in real time the status of wastewater treated and discharged by the coagulation sedimentation device, visualizes the treatment status, and utilizes collected operation data of the coagulation sedimentation device to enable users to improve their water treatment operation techniques and ensure the benefits to users.

In recent years, water treatment systems have become known to have a display means for storing measurement data in a database, displaying the measurement data on the web, and creating reports using measured and calculated values.

A technology has been disclosed for performing water treatment so that actual measurement data collected from various water treatment facilities results in results equivalent to indicators based on test data from tests.

JP 2019-207629 A

However, Patent Document 1 describes a water treatment control and monitoring device that controls and monitors chemical injection during cooling water treatment, and although it can monitor water treatment control, it does not provide a mechanism for acquiring operational data that can identify the cause of errors, etc., or for using the acquired operational data to improve the driver's driving skills.

The objective of the present invention is to provide a remote monitoring system for a coagulation sedimentation device that can monitor in real time the status of wastewater treated and discharged by the coagulation sedimentation device, visualize the treatment status, and utilize collected operation data of the coagulation sedimentation device to improve users' water treatment operation techniques and ensure user benefits.

Other objects of the present invention will become apparent from the following description.

The above problems are solved by the following inventions:

At least one coagulation sedimentation device that includes a tank, supplies a liquid to be treated to the tank, and discharges the treated liquid to the outside after adding a coagulant; an analysis server that generates operation information of the coagulation sedimentation device by analyzing received data; and a monitoring device that receives the operation information and monitors the state of the coagulation sedimentation device, all of which are connected via an electric communication line;
The coagulation and settling device acquires various data on the liquid to be treated, the coagulant, and the treatment liquid, and transmits the acquired various data to an analysis server;
The analysis server analyzes the received various data to generate operation information of the coagulation sedimentation apparatus and transmits the operation information to the monitoring device,
The monitoring device monitors the status of the coagulation sedimentation device in real time based on the received operation information, and accumulates the operation information to improve operating techniques utilizing the operation information.

According to the present invention, it is possible to provide a remote monitoring system for a coagulation sedimentation device that can monitor in real time the status of wastewater treated and discharged by the coagulation sedimentation device, visualize the treatment status, and utilize the collected operation data of the coagulation sedimentation device to improve the user's water treatment operation techniques and ensure the user's profits.

FIG. 1 is a schematic diagram showing an example of a monitoring system for a coagulation sedimentation apparatus according to the present invention. FIG. 1 shows an example of a coagulation and sedimentation device. FIG. 1 is a diagram showing an example of a process flow of a monitoring system for a coagulating sedimentation apparatus according to the present invention. FIG. 1 is a flow chart showing an example of the coagulation and sedimentation treatment of the present invention. FIG. 11 is a flow diagram showing an example of a process for checking an error item in the operation control unit. FIG. 11 is a flow diagram showing an example of a process for checking an error item in the operation control unit. FIG. 11 is a flow diagram showing an example of a process for checking an error item in the operation control unit. FIG. 1 is a diagram showing an example of an overall monitoring screen of a monitoring device according to the present invention. FIG. 13 is a diagram showing an example of an error history screen of the monitoring device according to the present invention. FIG. 13 is a diagram showing an example of a history information screen of the monitoring device according to the present invention. FIG. 1 is a diagram showing an example of a real-time monitoring screen of a monitoring device according to the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram showing an example of a monitoring system for a coagulating sedimentation apparatus according to the present invention, and FIG. 2 is a diagram showing an example of a coagulating sedimentation apparatus.

In FIG. 1, the monitoring system 1 includes a coagulation and sedimentation device 2, a coagulation and sedimentation device 3, an analysis server 4, and a monitoring device 5, which are connected via a telecommunications line 6. In addition, multiple coagulation and sedimentation devices may be connected, but the illustrated example shows two devices connected.

An example of the coagulation and sedimentation apparatus of the present invention will be described with reference to FIG.
2, the coagulation sedimentation device 2 includes a coagulation sedimentation device main body 20, an operation control unit 21, a data acquisition unit 22, and a data transmission/reception unit 23. Since the coagulation sedimentation device 2 and the coagulation sedimentation device 3 have the same configuration, the description of the coagulation sedimentation device 2 described below is used for the coagulation sedimentation device 3, and the description thereof will be omitted.

The coagulation sedimentation device main body 20 supplies the liquid to be treated from the water supply line to a tank via a water supply pump, supplies a pH adjuster to the tank so that the liquid to be treated supplied from the supply line has a predetermined pH, and also introduces a coagulant into the tank from a coagulant supply line. The coagulation sedimentation device main body 20 stirs the liquid with an agitator provided in the tank to perform coagulation and precipitation, and is equipped with a drainage line that discharges the treated water via a drainage pump.
In this embodiment, for example, a storage tank (not shown) may be provided in which the liquid to be treated is stored before being supplied to the tank of the coagulation sedimentation device 20, and a pH adjuster may be supplied to the storage tank. In this case, it is preferable that a pH adjuster supply line is provided to the storage tank. This ensures that the liquid to be treated supplied to the tank has a predetermined pH, and simplifies the operation of the coagulation sedimentation device main body 20.

The operation control unit 21 can operate to add a flocculant when the liquid to be treated is supplied to the tank in accordance with control information that defines the amount of flocculant to be added based on the properties of the liquid to be treated that have been stored in advance. Examples of flocculants include polymers and PAC.

The operation control unit 21 can also preset a processing time based on the supply volume of the tank, and can operate to perform the coagulation and sedimentation process for the set processing time.

Furthermore, the operation control unit 21 can manage the amount of flocculant. If the amount of flocculant added to the flocculant storage unit (not shown) is insufficient, a display unit (not shown) can be displayed to prompt the operator operating the flocculation settling device 2 to supply flocculant.

The operation control unit 21 may also use a timer (not shown) or the like to supply the liquid to be treated and drain the treatment liquid at a predetermined time.

In the operation control unit 21, the flocculation and settling device main body 20 can store the amount of flocculant added and the timing of addition, and can have the data acquisition unit 22 acquire it. Also, in the case of batch processing, the correspondence between the number of batches per day and the processing volume can be stored, and can be acquired by the data acquisition unit 22.

The data acquisition unit 22 can acquire necessary data from various sensors connected to various locations of the coagulation and sedimentation device main body 20. For example, it can acquire operating data such as the pressure, flow rate, and pH of the water supply line, the water level in the tank, the amount of coagulant supplied from the coagulant supply line, the amount of pH adjuster supplied from the pH adjuster supply line, the flow rate and pH of the drainage line.

In addition, the data acquisition unit 22 can also acquire data to the effect that the supply of coagulant or pH adjuster is not completed in time during supply.

The data acquisition unit 22 can also acquire data on whether the supply of the liquid to be treated by the operation control unit 21 and the discharge of the treatment liquid exceeded a predetermined time, and data on the time required.

Furthermore, the data acquisition unit 22 can acquire data on the operating status of the operation control unit 21.

The data transmission/reception unit 23 transmits the data acquired by the data acquisition unit 22 to an analysis server on the cloud.

The operation control unit 21 causes the data acquisition unit 22 to acquire the various error items that have been set.

An error item is an emergency stop, which occurs when the emergency stop button provided in the coagulation and settling device 2 is pressed.

Next, if an abnormality occurs in the inverter that operates the water supply pump, drainage pump, or agitator, the error items will be water supply pump abnormality, drainage pump abnormality, and tank agitator abnormality, respectively.

Next, if the flow rate measured by the flow meter installed in the supply line or drain line does not meet the specified flow rate standard, an error will be displayed indicating a water supply flow abnormality or a drain flow abnormality, respectively.

Next, if the flow rates measured by the flow meters installed in the flocculant supply line and the pH adjuster supply line do not meet the specified flow rate standards, an error item will be an abnormality in the flocculant flow or an abnormality in the pH adjuster flow, respectively.
Next, if the pressure in the supply line exceeds a predetermined pressure standard, a water supply line pressure abnormality becomes an error item.

Next, if the flocculant or pH adjuster supplied to the tank is not added in time, for example, if the addition process cannot be completed within the specified time, the error items will be "failed to add flocculant" and "failed to add pH adjuster."

The operation control unit 21 also sets warning items in addition to error items. Although they are not classified as errors, they are set as warnings, for example, when a certain error criterion is met but a certain warning criterion is not met. These are also acquired by the data acquisition unit 22, just like the error items described above.

As described above, the operation control unit 21 stores predetermined criteria in advance in a storage unit (not shown) at each location, and if the data acquired by the actual data acquisition unit does not satisfy the predetermined criteria, it causes the data acquisition unit 22 to acquire the error items and warning items that have been set.

The analysis server 4 analyzes the acquired data received from the coagulation and settling device 2. The error history, which is the acquired data, is analyzed chronologically, for example, every 10 seconds, together with the error items. Specifically, if an error occurs between 15:57:40 and 15:57:50, the analysis is performed so that 15:57:40 to 15:57:50 is treated as one square and displayed on the error history screen. In detail, the time and item at which the error occurred are displayed on a detailed real-time screen together with the error items of the operation control unit 21, and are also analyzed so as to be displayed as an error count on the entire screen. Warning items are also analyzed in the same way as error items. This will be described in more detail later.

In addition, based on the data acquired by the data acquisition unit 22, the analysis server 4 analyzes the operation status (operating, stopped, etc.) of the coagulation sedimentation device, the communication status (connected, disconnected, delayed, etc.), the operation mode (automatic preparation, automatic operation, automatic stop, manual mode, etc.), the tank status (water supply, drainage, treatment, etc.), the average turbidity of the treated liquid according to a predetermined standard (OK if it meets, NG if it does not meet), etc.

The analysis server 4 transmits the analyzed data as operation information to the monitoring device 5. As the analysis server 4, for example, a cloud service such as IaaS (Infrastructure as a Service) can be used.

The monitoring device 5 includes a data transmission/reception unit 50, a display unit 51, a monitoring control unit 52, and a database 53.

The monitoring device 5 can monitor the flocculation and sedimentation device by visualizing the operation information received by the data transmission/reception unit 50 via the monitoring screen displayed on the display unit 51.

The monitoring control unit 52 is configured to monitor the state of the coagulation settling device 2 and to give instructions in the event of an abnormality. For example, if an emergency stop signal is sent from the operation control unit 21 due to the emergency stop button of the coagulation settling device 2 being pressed, or if a communication link with the operation control unit 21 is not established and it is determined that the operation of the coagulation settling device 2 is not operating normally, it is preferable that a mechanism is configured to display this on the display unit of the coagulation settling device and to contact the operation manager.

In the database 53, operation information is sequentially stored and accumulated in a searchable manner, and it is preferable that correspondences between error items set by the operation control unit 21, countermeasures for corresponding warning items, parts to be inspected, etc., are pre-established. This makes it possible to notify errors and their countermeasures in the number of notifications on the monitoring screen, which will be described later.

The telecommunications line 6 can be, for example, an Internet line, but any known telecommunications line can be used.

The processing steps of the monitoring system for the coagulation sedimentation device according to the present invention are explained with reference to Figures 3 to 7.

Figure 3 is a diagram showing an example of the process flow of the monitoring system for the coagulation and sedimentation device according to the present invention, and Figure 4 is a flow diagram showing an example of the coagulation and sedimentation process of the present invention. Figures 5 to 7 are flow diagrams showing an example of the process of checking error items in the operation control unit.

As shown in FIG. 3, first, a coagulation and sedimentation treatment is carried out by a coagulation and sedimentation device (S1).
An example of the coagulation and sedimentation process will be described with reference to Fig. 4. Here, by acquiring measurement data from various sensors and executing an error item checking process by the operation control unit during the coagulation and sedimentation process, operation data to be generated as operation information, which will be described later, is acquired. An example of the error item checking process will be described with reference to Figs. 5 to 7.

During the coagulation and sedimentation process, for example, when raw water is supplied through a water supply line, operation data is acquired using a flow meter, pressure gauge, and pH meter installed in the water supply line. In addition, the operation control unit operates the supply pump of the supply line so that the amount of raw water supplied from the supply line to the tank is supplied within a set predetermined time, and measures the time when the supply of raw water to the tank is completed. Thereafter, in each process step of the coagulation and sedimentation process, an abnormality check process based on the operation data is performed.

Below, we will explain the coagulation and sedimentation process based on Figure 4, and then explain an example of the error item confirmation process shown in Figures 5 to 7.

As shown in FIG. 4, the coagulation and sedimentation process begins with supplying raw water (the liquid to be treated) (S11). Here, a process is performed to check for abnormalities in the raw water supply flow based on FIG. 5.

As shown in FIG. 5, raw water is supplied (S11), the flow rate is measured by the flow meter, and the operation control unit acquires the flow rate data from the flow meter (S110).

Next, it is determined whether the measured flow rate data reaches the specified set flow rate (S111).

If the flow rate reaches the specified set value (YES in S111), no feedwater flow abnormality has been confirmed, and the raw water flow abnormality confirmation process is terminated. On the other hand, if the flow rate does not reach the specified set value (NO in S111), a feedwater flow abnormality has been confirmed, and the data acquisition unit is caused to acquire information indicating that an error item, feedwater flow abnormality, has occurred, along with the time at which the feedwater flow rate abnormality occurred (S112).

This completes the process of checking for abnormalities in the water supply flow. Once water has been supplied, the process of checking for abnormalities in the water supply line pressure and the process of checking for excess water supply time can be carried out almost simultaneously from the measurement data of various sensors. Furthermore, if the flow meter on the water supply line is unable to measure anything for a specified period of time, a process of checking for a flow meter failure or an abnormality in the water supply pump may be carried out. These may be notified to the operator, etc., once the error item has been confirmed by the operation control unit.

Next, a pH adjuster is supplied so that the liquid to be treated (raw water) supplied to the tank has a predetermined pH (S12). It is preferable to set a predetermined standard in advance and supply the liquid to be treated supplied to the tank until it reaches the predetermined pH. Here, the pH adjuster flow anomaly confirmation process will be explained based on FIG. 6.

As shown in FIG. 6, the pH adjuster is supplied (S12), the flow rate is measured by a flow meter in the pH adjuster line, and the operation control unit acquires the flow rate data from the flow meter (S120).

Next, it is determined whether the measured flow rate data reaches a predetermined set flow rate (S121).

If the flow rate reaches the predetermined set value (YES in S121), no pH adjuster flow anomaly has been confirmed, and the process of confirming the pH adjuster flow anomaly is terminated. On the other hand, if the flow rate does not reach the predetermined set value (NO in S121), a pH adjuster flow anomaly is confirmed, and the occurrence of a pH adjuster flow anomaly error item is acquired by the data acquisition unit along with the time when the pH adjuster flow anomaly occurred (S122). It is preferable to calculate in advance the supply amount of pH adjuster that will bring the pH of the liquid to be treated (raw water) to a predetermined set value, and then supply the pH adjuster.

Next, a flocculant is supplied to the pH-adjusted raw water (S13). Here, the flocculant flow abnormality confirmation process will be explained based on FIG. 7.

As shown in FIG. 7, the flocculant is supplied (S13), the flow rate is measured by a flow meter in the flocculant line, and the operation control unit acquires the flow rate data from the flow meter (S130).

Next, it is determined whether the measured flow rate data reaches the specified set flow rate (S131).

If the flow rate reaches the specified set value (YES in S131), no flocculant flow abnormality has been confirmed, and the flocculant flow abnormality confirmation process is terminated. On the other hand, if the flow rate does not reach the specified set value (NO in S131), a flocculant flow abnormality has been confirmed, and the data acquisition unit is caused to acquire information indicating that an error item for flocculant flow abnormality has occurred, together with the time at which the flocculant flow rate abnormality occurred (S132).

This completes the process of checking for abnormalities in the coagulant flow. Even when the coagulant has been supplied, the same confirmation process based on error items is carried out based on the measurement data of the various sensors as when raw water is supplied. Furthermore, when coagulant is added during the raw water supply, an error item can be set to check whether the coagulant was not added in time, and a confirmation process can be carried out. In this case, whether the addition has failed can be checked by setting items such as a physical valve control error, whether coagulant was supplied within the set time, etc. The operator, etc. may be notified of these error items when they are confirmed by the operation control unit.

Next, the raw water and the coagulant are mixed with an agitator (S14). After a predetermined time has passed, a coagulation reaction occurs, flocs are formed, and the flocs precipitate to produce a treated liquid.

Here, it is preferable to measure the pH of the treatment liquid, and if it is not the specified pH, to supply the pH adjuster again. The supply line for the pH adjuster at this time may be the supply line described above, or a separate supply line for the treatment liquid may be used. Then, depending on the pH value, it is preferable to supply an alkaline adjuster if it is acidic, and an acidic adjuster if it is alkaline.

Next, the treated liquid whose pH meets the discharge standard is discharged (S15). If a pH adjuster is not supplied to the treated liquid, the treated liquid may be returned to the storage tank for storing the liquid to be treated. In this embodiment, the process for checking for an abnormality in the (treated liquid) discharge flow can be performed in the same manner as the process for checking for an abnormality in the water supply flow.
This completes the coagulation and sedimentation process shown in FIG.

When the coagulation and sedimentation process shown in FIG. 4 is completed, as shown in FIG. 3, the operating data acquired during the coagulation and sedimentation process is transmitted to the analysis server 4, and the acquired operating data is analyzed (S2).

Next, the analysis server 4 analyzes the operation data and generates operation information (S3). The operation information is transmitted to the monitoring device 5.

Next, the monitoring device 5 displays the operation information on the monitoring screen (S4) and monitors the operation status of the coagulation sedimentation device in real time.

Below, an example of a monitoring screen displayed on the display unit 51 of the monitoring device 5 is described with reference to Figures 8 to 11.

FIG. 8 is a diagram showing an example of an overall monitoring screen of the monitoring screen.
In FIG. 8, the states of the coagulating sedimentation device 2 and the coagulating sedimentation device 3 are monitored.
The coagulating sedimentation device 2 and the coagulating sedimentation device 3 are used by different users, and desired data is acquired in each device as operation information.

In the illustrated example, the operating status of the coagulation sedimentation device 2 is "operating". This operating status is displayed as an item, with the status of the coagulation sedimentation device 2 being "operating" or "stopped". The operating time is displayed to the right of the operating status, showing the operating time of the coagulation sedimentation device 2. The graph shown in the background of the operating time shows the operating rate graph during the operating time. The operating rate is displayed chronologically as the percentage of time the coagulation sedimentation device 2 was operating between stops.

Below the operating status of the coagulation sedimentation device 2, the communication status is shown, which is "connected" in the illustrated example. This communication status is displayed as items such as "connected", "disconnected" and "delay". This communication status is the communication status between the monitoring device 5 and the coagulation sedimentation device 2. To the right of the communication status, the connection time is displayed, showing the connection time with the coagulation sedimentation device 2. The graph shown in the background of the connection time shows the connection status at the connection time.

To the right of the operating time and connection time, buttons for the number of errors, number of warnings, and number of notifications are displayed. The number of errors is displayed by accumulating the number of error items acquired by the data acquisition unit 22 in the operation control unit 21. The number of warnings is displayed by accumulating the number of warning items.

The number of notifications corresponds to the number of notifications of countermeasures such as how to deal with error items and warning items that have been stored in advance in the database 53 of the monitoring device 5 described above, and these can be made to notify the driver and users of the system as needed, whether on a regular or irregular basis, and the number of notifications made is displayed.
When these buttons are pressed, the display moves to an error history screen for the number of errors and warnings, and moves to a notice screen (not shown) for the number of notices.

FIG. 9 is a diagram showing an example of the error history screen.
9, error items A to L are listed. Error items A to L are shown according to the time when the error item and warning item set in the operation control unit 21 occurred. When each item occurs, that fact is recorded according to the time. This makes it possible to check the time and content of past errors and warnings.

You can return to the overall monitoring screen shown in Figure 8 by pressing the "Return to overall monitoring screen" button shown at the top of Figure 9.

Returning to the overall monitoring screen shown in Figure 8, to the right of the items for number of errors, number of warnings, and number of notifications are buttons to move to the history information screen and real-time monitoring screen. Pressing the history information screen button will move to the screen shown in Figure 10.

FIG. 10 shows an example of a history information screen.
In FIG. 10, the operation history including the operation history, communication history, operation mode, operation status, raw water (liquid to be treated) pH, and wastewater (liquid to be treated) pH are displayed.

In the illustrated example, the operation history will be described.
The operation history is a graph that records the operation status in chronological order. The operation mode is the time when the coagulation sedimentation device is in automatic preparation, that is, when various devices are being checked for startup before entering automatic operation. If the startup confirmation time is delayed, the time in automatic preparation will be longer. In other words, the startup time of various devices will be longer due to aging deterioration, etc., so this information can serve as a guide for when to replace various devices. During automatic operation, it indicates that preparation is complete and processing operation is underway.

Next, the operation modes will be described.
The automatic stop time is the time when the system automatically stops if an error occurs. If this time is long, you can check the relationship between the error and the time it was stopped by referring to the data along with the time of the error item. Here, if the coagulation and settling device is capable of switching between automatic and manual modes, and the device is being operated manually after switching, it is displayed as manual mode and the time is recorded. When switching from manual mode to automatic operation, it is also possible to prepare for operation in manual mode and then switch to automatic operation, and the history of this case is recorded.

Next, the communication history will be described.
The communication history is a chronological display of communication status between the monitoring device and the coagulation sedimentation device from the past to the present. The communication status can be displayed, for example, by the amount of communication.

Next, the driving conditions will be described.
The operating status can show the relationship between the amount of processing and time, with the graph fluctuating according to the amount of processing.

Next, the pH of the raw water (liquid to be treated) will be described.
The raw water pH is displayed in chronological order as data from a pH meter that measures the pH of the liquid to be treated that is fed into the tank from the water supply line.

Next, the pH of the wastewater (treated liquid) will be described.
The wastewater pH can be displayed according to the data from the pH meter of the treated liquid discharged from the tank through the drain line. For example, a pH of less than 6.5 is indicated as "acidic," a pH of 6.5 to 7.5 is indicated as "neutral," and a pH of more than 7.5 is indicated as "alkaline."

You can return to the overall monitoring screen shown in Figure 8 by pressing the "Return to overall monitoring screen" button shown at the top of Figure 10.

By utilizing the error history information shown on the error history screen in Figure 9 and the operating data of the coagulation and settling device based on various types of history information shown on the history information screen in Figure 10, solutions to the error items can be presented to the driver, improving driving skills, and by presenting information to prevent errors at the warning stage through notifications, etc., operation can be continued, ensuring the benefits to users of this system.

This system can appropriately monitor the status of operation management by recording the operating status, operating mode, communication status, or operating condition history, the history of acquired data for turbidity, wastewater (treated liquid) pH, or raw water (liquid to be treated) pH, and the parameter history of the amount and timing of addition of coagulants and pH adjusters.

Return to the overall monitoring screen shown in Figure 8 and press the button to switch to the real-time monitoring screen, which will take you to the screen shown in Figure 11.

FIG. 11 shows an example of a real-time monitoring screen.
FIG. 11 shows a screen for grasping the status of the coagulation sedimentation device, such as the operating status, connection status, operation mode, tank status, turbidity, various items such as wastewater pH, the current water level gauge of the tank, flow rate graphs of the supply line and wastewater line, turbidity history, and error item display.

These are the results of analysis performed by the analysis server 4 on the operating status according to the operation of the operation control unit 21 described above, and data acquired from various sensors. This allows the current status of each individual coagulation and sedimentation device to be monitored in real time, making it possible to grasp the water treatment situation, the status of the device, the status of chemicals, etc.

Therefore, the individual status of the coagulation sedimentation devices installed in the treatment facilities of multiple users can be obtained, and the status of multiple coagulation sedimentation devices can be understood.

1: Monitoring system 2: Coagulation settling device 20: Coagulation settling device main body 21: Operation control unit 22: Data acquisition unit 23: Data transmission/reception unit 3: Coagulation settling device 4: Analysis server 5: Monitoring device 50: Data transmission/reception unit 51: Display unit 52: Monitoring control unit 53: Database 6: Telecommunication line

Claims (1)

At least one coagulation sedimentation device that includes a tank, supplies a liquid to be treated to the tank, and discharges the treated liquid to the outside after adding a coagulant; an analysis server that generates operation information of the coagulation sedimentation device by analyzing received data; and a monitoring device that receives the operation information and monitors the state of the coagulation sedimentation device, all of which are connected via an electric communication line;
The coagulation and sedimentation apparatus includes a coagulation and sedimentation apparatus main body, an operation control unit, and a data acquisition unit,
The coagulation and sedimentation device main body supplies the liquid to be treated from a water supply line to a tank via a water supply pump, supplies a pH adjuster to the tank so that the liquid to be treated supplied from the supply line has a predetermined pH, and also introduces a coagulant into the tank from a coagulant supply line and stirs the liquid with an agitator provided in the tank to perform coagulation and sedimentation. The device main body is provided with a drainage line that discharges the treated water via a drainage pump.
The operation control unit operates the coagulation sedimentation device main body to add a coagulant when the liquid to be treated is supplied to the tank in accordance with control information that defines an amount of coagulant to be added based on the properties of the liquid to be treated that have been previously stored, sets a treatment time based on the amount of the liquid supplied to the tank in advance, and operates the coagulation sedimentation device main body to perform a coagulation sedimentation treatment for the set treatment time,
The data acquisition unit is configured to acquire data detected by various sensors connected to various locations of the coagulation sedimentation apparatus body, and the operation control unit stores predetermined criteria in advance in a storage unit at various locations, and the operation control unit determines whether the detected data satisfies the predetermined criteria, and if the data does not satisfy the predetermined criteria, the data acquisition unit acquires the set error items and warning items.
Transmitting the detected data, as well as error items and warning items in the case where a predetermined criterion is not met, to an analysis server;
The analysis server generates operation information of the coagulation sedimentation apparatus, which is processed so as to be displayed on a monitoring screen of the monitoring device, including the detected data, the time when the detected data was acquired, and error items, warning items, and the time when the error items and warning items occurred , and transmits the information to the monitoring device;
The monitoring device displays the operation information on a monitoring screen as at least an operation history and real-time information,
The operation history is configured to display the operation history, communication history, operation mode, operation status, raw water (liquid to be treated) pH, and wastewater (liquid to be treated) pH together.
The real-time information is provided in a manner that displays various items such as operation status, connection status, operation mode, tank status, turbidity, and drainage pH, the tank's current water level gauge, supply line, and drainage line flow rate graphs, turbidity history, and error items.
The monitoring device monitors the state of the main body of the coagulation sedimentation device and the state of the liquid to be treated in real time, and accumulates the operation information.

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