Remote monitoring system for coagulation and settling equipment

Abstract

To provide a remote monitoring system for a coagulation sedimentation apparatus that can monitor a state of processed and discharged drain water in real time to visualize a processing state, and also utilize collected operation data on the coagulation sedimentation apparatus to improve a user's operation technique for water processing to secure user's profit.SOLUTION: A coagulation sedimentation apparatus 2 which supplies a liquid to be processed and adds a coagulant, and discharges a processed liquid to the outside, an analysis server 4 which generates operation information on the coagulation sedimentation apparatus 2, and a monitor device 5 which monitors a state of the coagulation sedimentation apparatus 2 are connected through a telecommunication line. The coagulation sedimentation apparatus 2 acquires and transmits various data to the analysis server 4. The analysis server 4 analyzes the received various data to generate and transmit operation information on the coagulation sedimentation apparatus 2 to the monitor device 5. The monitor device 5 monitors a state of the coagulation sedimentation apparatus 2 in real time based upon the received operation information, and stores the operation information to improve an operation technique utilizing the operation information.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a remote monitoring system for a coagulation sedimentation device, and more particularly 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. [Background technology]

[0002] In recent years, a technology has become known for water treatment systems that accumulates measurement data in a database, has a display means that uses the measurement data to display it on the web, and creates reports using measured and calculated values.

[0003] A technology has been disclosed for performing water treatment so that actual measurement data collected from various water treatment facilities results in equivalent results to indexes based on test data from tests. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-207629 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, Patent Document 1 is a water treatment control and monitoring device that controls and monitors chemical injection for cooling water treatment, and although it is capable of monitoring water treatment control, it does not have a mechanism for acquiring operating data that can identify the cause of errors, etc., or for using this acquired operating data to improve the driving skills of the operator.

[0006] Therefore, an object 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 enable users to improve their water treatment operation techniques and ensure user benefits.

[0007] Other objects of the present invention will become apparent from the following description. [Means for solving the problem]

[0008] The above problems are solved by the following inventions.

[0009] 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, thereby improving operating techniques using the operation information. Effect of the Invention

[0010] 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 collected operation data of the coagulation sedimentation device to improve users' water treatment operation techniques and ensure user benefits. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram showing an example of a monitoring system for a coagulation sedimentation apparatus according to the present invention. [Diagram 2] FIG. 1 shows an example of a coagulation and sedimentation device. [Diagram 3] 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. [Figure 4] FIG. 1 is a flow chart showing an example of the coagulation and sedimentation treatment of the present invention. [Diagram 5] FIG. 11 is a flow diagram showing an example of a process for checking an error item in the operation control unit. [Figure 6] FIG. 11 is a flow diagram showing an example of a process for checking an error item in the operation control unit. [Figure 7] FIG. 11 is a flow diagram showing an example of a process for checking an error item in the operation control unit. [Figure 8] FIG. 1 is a diagram showing an example of an overall monitoring screen of a monitoring device according to the present invention. [Figure 9] FIG. 13 is a diagram showing an example of an error history screen of the monitoring device according to the present invention. [Figure 10] FIG. 13 is a diagram showing an example of a history information screen of the monitoring device according to the present invention. [Figure 11] FIG. 1 is a diagram showing an example of a real-time monitoring screen of a monitoring device according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] 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.

[0013] 1, in a monitoring system 1, a coagulating sedimentation device 2, a coagulating sedimentation device 3, an analysis server 4, and a monitoring device 5 are connected via an electric communication line 6. In addition, although a plurality of coagulating sedimentation devices may be connected, the illustrated example shows an example in which two are connected.

[0014] An example of the coagulation and sedimentation apparatus of the present invention will be described with reference to FIG. 2, the coagulation settling apparatus 2 includes a coagulation settling apparatus main body 20, an operation control unit 21, a data acquisition unit 22, and a data transmission / reception unit 23. Since the coagulation settling apparatus 2 and the coagulation settling apparatus 3 have the same configuration, the description of the coagulation settling apparatus 2 described below is used for the coagulation settling apparatus 3, and the description thereof will be omitted.

[0015] 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.

[0016] 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 are stored in advance. Examples of the flocculant include polymer and PAC.

[0017] Furthermore, the operation control unit 21 can preset a treatment time based on the supply amount of the tank, and can operate to execute the coagulation and sedimentation treatment for the set treatment time.

[0018] Furthermore, the operation control unit 21 can manage the amount of flocculant. When the amount of flocculant added in the flocculant storage unit (not shown) is insufficient, a display unit (not shown) can display a message to prompt the operator operating the flocculating sedimentation device 2 to supply flocculant.

[0019] Furthermore, the operation control unit 21 may use a timer (not shown) or the like to supply the liquid to be treated and drain the treatment liquid at a predetermined time.

[0020] In the operation control unit 21, the coagulation settling device main body 20 can store the amount of coagulant added and the timing of addition, and can cause the data acquisition unit 22 to acquire it. In addition, in the case of batch processing, the operation control unit 21 can store the correspondence between the number of batches per day and the processing amount, and can cause the data acquisition unit 22 to acquire it.

[0021] The data acquisition unit 22 can acquire necessary data from various sensors connected to various locations of the coagulation sedimentation device main body 20. For example, it can acquire operation data such as the pressure, flow rate, and pH of the water supply line, the water level in the tank, the supply amount of coagulant in the coagulant supply line, the supply amount of pH adjuster in the pH adjuster supply line, the flow rate and pH of the drainage line.

[0022] Furthermore, even if the supply of the flocculant or pH adjuster is not completed in time during supply, the data acquiring unit 22 can acquire data to that effect.

[0023] Furthermore, the data acquiring unit 22 can acquire data on whether or not the supply of the liquid to be treated and the discharge of the treatment liquid by the operation control unit 21 have exceeded a predetermined time, and data on the time required.

[0024] Furthermore, the data acquisition unit 22 can acquire data on the operating status of the operation control unit 21 .

[0025] The data transmission / reception unit 23 transmits the data acquired by the data acquisition unit 22 to an analysis server on the cloud.

[0026] The operation control unit 21 causes the data acquisition unit 22 to acquire the various error items that have been set.

[0027] An error item is an emergency stop, which corresponds to the case where the emergency stop button provided in the coagulation settling device 2 is pressed.

[0028] Next, if an abnormality occurs in the inverter for operating the water supply pump, drainage pump, or agitator, the error items will be a water supply pump abnormality, a drainage pump abnormality, and a tank agitator abnormality, respectively.

[0029] Next, if the flow rate measured by the flow meter installed in the supply line or the drain line does not meet a predetermined flow rate standard, an error item will be a water supply flow abnormality or a drain flow abnormality, respectively.

[0030] Next, if the flow rate measured by the flowmeter installed in the flocculant supply line or the pH adjuster supply line does not meet the specified flow rate standard, an error will be reported as a flocculant flow abnormality or a pH adjuster flow abnormality, respectively. Next, if the pressure in the supply line exceeds a predetermined pressure standard, a water supply line pressure abnormality becomes an error item.

[0031] 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 failure to add flocculant or failure to add pH adjuster.

[0032] In addition, the operation control unit 21 is not limited to setting error items, but also setting warning items. Although they are not classified as errors, they are set as warnings, for example, when a predetermined error standard is met but a predetermined warning standard is not met. These are also acquired by the data acquisition unit 22 in the same way as the above-mentioned error items.

[0033] As described above, the operation control unit 21 stores predetermined criteria in advance in a memory 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 set error items and warning items.

[0034] The analysis server 4 analyzes the acquired data received from the coagulation settling device 2. The error history, which is the acquired data, is analyzed in chronological order, 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 the period between 15:57:40 and 15:57:50 is treated as one square and is 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 number on the entire screen. Warning items are also analyzed in the same way as error items. This will be described in detail later.

[0035] 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 equipment, 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 turbidity of the average turbidity of the treated liquid according to a specified standard (OK if it is met, NG if it is not met), etc.

[0036] 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.

[0037] The monitoring device 5 includes a data transmission / reception unit 50 , a display unit 51 , a monitoring control unit 52 , and a database 53 .

[0038] The monitoring device 5 can visually display the operation information received by the data transmission / reception unit 50 on a monitoring screen displayed on the display unit 51, thereby monitoring the coagulation sedimentation device.

[0039] The monitoring control unit 52 is configured to monitor the state of the coagulating sedimentation device 2 and to give instructions in the event of an abnormality. For example, when an emergency stop signal is sent from the operation control unit 21 as a result of pressing an emergency stop button on the coagulating sedimentation device 2, or when it is determined that the operation of the coagulating sedimentation device 2 is not operating normally, such as when a communication link with the operation control unit 21 is not established, it is preferable that a mechanism is configured to display this on the display unit of the coagulating sedimentation device and to contact the operation manager.

[0040] It is preferable that the database 53 stores operation information sequentially and accumulates it in a searchable manner, and also stores in advance correspondence between error items and warning items set by the operation control unit 21, parts to be inspected, and the like. This makes it possible to notify errors and their countermeasures in the notification number on the monitoring screen, which will be described later.

[0041] The electric communication line 6 can be, for example, an Internet line, but any known electric communication line can be used.

[0042] The processing steps of the monitoring system for the coagulating sedimentation apparatus according to the present invention will be described with reference to Figs.

[0043] Fig. 3 is a diagram showing an example of a process flow of a monitoring system for a coagulating sedimentation apparatus according to the present invention, and Fig. 4 is a flow diagram showing an example of a coagulating sedimentation process according to the present invention. Figs. 5 to 7 are flow diagrams showing an example of a process for checking an error item in an operation control unit.

[0044] 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 by 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 described later is acquired. An example of the error item checking process will be described with reference to Figs. 5 to 7.

[0045] 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, a pressure meter, and a pH meter provided in the water supply line. Also, an operation control unit operates a supply pump in 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. After that, in each process step of the coagulation and sedimentation process, an abnormality confirmation process based on the operation data is performed.

[0046] Below, the coagulation and sedimentation process will be described based on FIG. 4, and then an example of the error item confirmation process shown in FIGS.

[0047] As shown in Fig. 4, in the coagulation sedimentation treatment, first, raw water (liquid to be treated) is supplied (S11). Here, a process for checking for an abnormality in the raw water supply flow is performed based on Fig. 5.

[0048] 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 flow rate data from the flow meter (S110).

[0049] Next, it is determined whether the measured flow rate data reaches a predetermined set value of flow rate (S111).

[0050] If the flow rate reaches the predetermined set value (YES in S111), the feedwater flow abnormality is not confirmed, and the raw water flow abnormality confirmation process is terminated. On the other hand, if the flow rate does not reach the predetermined set value (NO in S111), the feedwater flow abnormality is confirmed, and the data acquisition unit acquires the fact that an error item called a feedwater flow abnormality has occurred, together with the time when the feedwater flow rate abnormality occurred (S112).

[0051] 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 in 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 an operator or the like once the error item has been confirmed by the operation control unit.

[0052] 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 the liquid reaches the predetermined pH. Here, the pH adjuster flow abnormality confirmation process will be described with reference to FIG. 6.

[0053] As shown in FIG. 6, a 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).

[0054] Next, it is determined whether the measured flow rate data reaches a predetermined set value of flow rate (S121).

[0055] If the flow rate reaches the predetermined set value (YES in S121), no pH adjuster flow abnormality has been confirmed, and the process of confirming the pH adjuster flow abnormality is terminated. On the other hand, if the flow rate does not reach the predetermined set value (NO in S121), a pH adjuster flow abnormality is confirmed, and the data acquisition unit acquires the occurrence of a pH adjuster flow abnormality error item together with the time when the pH adjuster flow abnormality occurred (S122). It is preferable to calculate in advance the supply amount of the pH adjuster that will bring the pH of the liquid to be treated (raw water) to a predetermined set value, and supply the pH adjuster.

[0056] Next, a flocculant is supplied to the pH-adjusted raw water (S13). Here, the flocculant flow abnormality confirmation process will be described with reference to FIG.

[0057] 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).

[0058] Next, it is determined whether the measured flow rate data reaches a predetermined set value of flow rate (S131).

[0059] If the flow rate reaches the predetermined set value (YES in S131), the flocculant flow abnormality has not been confirmed, and the flocculant flow abnormality confirmation process is terminated. On the other hand, if the flow rate does not reach the predetermined set value (NO in S131), the flocculant flow abnormality is confirmed, and the data acquisition unit acquires the fact that an error item for the flocculant flow abnormality has occurred, together with the time when the flocculant flow rate abnormality occurred (S132).

[0060] This completes the process of checking for an abnormality in the coagulant flow. At the stage when the coagulant is supplied, the confirmation process based on the error items is executed based on the measurement data of the various sensors, as in the stage when the raw water supply is supplied. In addition, when the coagulant is added during the raw water supply, an error item of whether the coagulant was not added in time can be set and a confirmation process can be executed. In this case, whether the addition has failed can be checked by setting items such as a physical valve control error, whether the coagulant was supplied within a set time, and the like, and a confirmation process for various error items can be executed. These may be notified to the operator, etc., at the stage when the error item is confirmed by the operation control unit.

[0061] Next, the raw water and the flocculant are agitated by an agitator (S14). After a predetermined time has passed, a flocculation reaction occurs, flocs are formed, and the flocs settle to produce a treated liquid.

[0062] Here, it is preferable to measure the pH of the treatment liquid, and if the pH is not the predetermined 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, according to the pH value, if it is acidic, it is preferable to supply an alkaline adjuster, and if it is alkaline, it is preferable to supply an acidic adjuster.

[0063] 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 treatment shown in FIG.

[0064] When the coagulation and sedimentation process shown in FIG. 4 is completed, as shown in FIG. 3, the operation data acquired during the coagulation and sedimentation process is transmitted to the analysis server 4, and the acquired operation data is analyzed (S2).

[0065] Next, the analysis server 4 analyzes the operating data and generates operating information (S3). The operating information is transmitted to the monitoring device 5.

[0066] Next, the monitoring device 5 displays the operation information on a monitoring screen (S4), and monitors the operation state of the coagulation sedimentation device in real time.

[0067] An example of a monitoring screen displayed on the display unit 51 of the monitoring device 5 will be described below with reference to FIGS.

[0068] 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.

[0069] In the illustrated example, the operation status of the coagulating sedimentation device 2 is "operating". This operation status is displayed as an item, with the status of the coagulating sedimentation device 2, such as "operating" or "stopped". To the right of the operation status, the operation time is displayed, showing the operation time of the coagulating sedimentation device 2. The graph shown in the background of the operation time displays a graph of the operation rate during the operation time. The operation rate is displayed in chronological order as the percentage of the operation between stoppages of the coagulating sedimentation device 2.

[0070] Below the operating status of the coagulating sedimentation device 2, the communication status is shown, which is "connected" in the illustrated example. This communication status includes items such as "connected", "disconnected" and "delay". This communication status is the communication status between the monitoring device 5 and the coagulating sedimentation device 2. To the right of the communication status, the connection time is displayed, showing the connection time with the coagulating sedimentation device 2. The graph shown in the background of the connection time shows the connection status at the connection time.

[0071] 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.

[0072] 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.

[0073] 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 along with the time at which the error item and warning item set in the operation control unit 21 occurred. When each item occurs, that fact is recorded along with the time. This makes it possible to check the time and content of past errors and warnings.

[0074] By pressing the "return to overall monitoring screen" button shown at the top of FIG. 9, it is possible to return to the overall monitoring screen shown in FIG.

[0075] 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 displayed buttons which lead to the history information screen and real-time monitoring screen; pressing the history information screen button will take you to the screen shown in Figure 10.

[0076] FIG. 10 shows an example of the history information screen. In FIG. 10, the operation history, communication history, operation mode, operating status, raw water (liquid to be treated) pH, and wastewater (liquid to be treated) pH are displayed.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] Next, the pH of the raw water (liquid to be treated) will be described. The raw water pH is displayed in chronological order as a pH meter measures the pH of the liquid to be treated as it is fed into the tank from the water supply line.

[0082] 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 "acidic," a pH of 6.5 to 7.5 is "neutral," and a pH of greater than 7.5 is "alkaline."

[0083] By pressing the "return to overall monitoring screen" button shown at the top of FIG. 10, it is possible to return to the overall monitoring screen shown in FIG.

[0084] By utilizing the error history information shown on the error history screen in FIG. 9 and the operation data of the coagulation sedimentation equipment based on various types of history information shown on the history information screen in FIG. 10, solutions to the error items can be presented to the driver, improving driving techniques. At the warning stage, by presenting information to prevent errors through notifications, etc., the operation can be continued, thereby ensuring the benefits to users of this system.

[0085] This system can appropriately monitor the status of operational management by recording operation history recorded as operation status, operating mode, communication status, or operating condition history, history of acquired data for turbidity, wastewater (treated liquid) pH, or raw water (liquid to be treated) pH, and parameter history of the amount and timing of addition of coagulants and pH adjusters.

[0086] Returning to the overall monitoring screen shown in FIG. 8 and pressing the button to switch to the real-time monitoring screen will switch to the screen shown in FIG.

[0087] FIG. 11 shows an example of a real-time monitoring screen. FIG. 11 shows a screen for grasping the status of the coagulation sedimentation equipment, including the operating status, connection status, operating 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.

[0088] These display the results of analysis by the analysis server 4 of the operating state according to the operation of the above-mentioned operation control unit 21 and the data acquired from various sensors. This makes it possible to grasp the water treatment situation, the state of the equipment, the state of the chemicals, etc. by successively monitoring the current state of each individual coagulation sedimentation equipment.

[0089] Therefore, the individual statuses of the coagulation sedimentation devices installed in the treatment facilities of each of the multiple users can be obtained, and the statuses of the multiple coagulation sedimentation devices can be grasped. [Explanation of symbols]

[0090] 1: Surveillance system 2: Coagulation and settling device 20: Main body of coagulation and sedimentation device 21: Motion control unit 22: Data acquisition section 23: Data transmission and reception unit 3: Coagulation and settling device 4: Analysis server 5: Monitoring device 50: Data transmission and reception unit 51: Display section 52: Monitoring and control unit 53: Database 6: Telecommunications lines

Claims

[Claim 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 cases 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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