Water quality monitoring point site selection method, device, equipment and medium of water quality purification plant

Abstract

The invention discloses a water quality monitoring point site selection method, device, equipment and medium for a water quality purification plant, and the method comprises the steps: determining the investigation range of the water quality purification plant, the investigation range comprises an out-plant water inlet source, an in-plant wastewater access condition and a 24-hour mixed sample sampling point; respectively determining corresponding survey contents based on the out-plant water inlet source, the in-plant wastewater access condition and the 24-hour mixed sample sampling point, and analyzing and judging each survey content to determine a corresponding survey conclusion; and selecting a target water quality monitoring point based on all the survey conclusions. According to the scheme provided by the embodiment of the invention, the corresponding survey conclusion is obtained by determining the multiple survey ranges of the water quality purification plant and the corresponding survey content, so that the sampling point which most accurately reflects the inflow water quality can be determined by comprehensively considering multiple factors, and the inflow water quality monitoring accuracy of the water quality purification plant can be effectively improved.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of sewage treatment technology, and in particular to a method, device, equipment, and medium for selecting a site for a water quality monitoring point in a water purification plant. Background Art

[0002] In the layout of comprehensive urban drainage management, the water purification plant is the final destination of sewage and wastewater, and its water quality reflects the water use and drainage conditions of the entire city. The changes in water quality and quantity before and after treatment by the water purification plant are of great significance to measuring the level of comprehensive drainage management of the entire city. When monitoring water quality and quantity at a water purification plant, mixed samples need to be collected to reflect the quality of the incoming water. However, the selection of sampling points at a water purification plant varies depending on the cause of the investigation, and it is manual sampling, which may cause problems such as inappropriate sampling point locations and sampling point locations being affected by wastewater in the plant, making it impossible to accurately reflect the incoming water quality of the water purification plant. Summary of the invention

[0003] The embodiments of the present application provide a method, device, equipment, and medium for selecting a water quality monitoring point for a water purification plant, which can effectively improve the accuracy of inlet water quality monitoring for a water purification plant.

[0004] In a first aspect, an embodiment of the present application provides a method for selecting a site for a water quality monitoring point in a water purification plant, comprising:

[0005] Determine the survey scope of the water purification plant, which includes the source of water inlet outside the plant, the access status of wastewater within the plant and the sampling points of 24-hour mixed samples;

[0006] Determine the corresponding investigation contents based on the external water inlet source, the in-plant wastewater access situation and the 24-hour mixed sample sampling points, analyze and judge each of the investigation contents, and determine the corresponding investigation conclusions;

[0007] Target water quality monitoring points are selected based on all the survey conclusions.

[0008] In some embodiments, when the survey content is obtained based on the water source outside the factory, the survey content includes the route of the factory inlet main pipe, the connection relationship between each factory inlet main pipe and the water quality and quantity of each factory inlet main pipe;

[0009] Analyze and judge each of the above investigation contents and determine the corresponding investigation conclusions, including:

[0010] The investigation conclusion is determined based on the route of the inlet main pipe, the connection relationship between the inlet main pipes and the water quality and quantity of the inlet main pipes, wherein the investigation conclusion indicates that the water quality concentrations corresponding to different off-site water inlet sources are different.

[0011] In some embodiments, when the survey content is obtained based on the in-plant wastewater access situation, the survey content includes the source of the in-plant wastewater, the in-plant wastewater access point, and the water quality and quantity of the in-plant wastewater;

[0012] Analyze and judge each of the survey contents and determine the corresponding survey conclusions, including:

[0013] The investigation conclusion is determined based on the source of the in-plant wastewater, the in-plant wastewater access point, and the water quality and quantity of the in-plant wastewater, wherein the investigation conclusion represents that different water quality concentrations correspond to different in-plant wastewater loads.

[0014] In some embodiments, when the survey content is obtained based on the 24-hour mixed sample sampling points, the survey content includes the location of the mixed sample sampling points, the sampling method of the mixed sample sampling points, and the sampling frequency of the mixed sample sampling points;

[0015] Analyze and judge each of the survey contents and determine the corresponding survey conclusions, including:

[0016] The investigation conclusion is determined based on the location of the mixed sample sampling point, the sampling method of the mixed sample sampling point and the sampling frequency of the mixed sample sampling point, wherein the investigation conclusion represents that the water quality concentrations corresponding to different locations of the mixed sample sampling point are different.

[0017] In some embodiments, selecting a target water quality monitoring point based on all of the survey conclusions includes:

[0018] Determine the pipeline direction information of each of the inlet main pipes in the water inlet trunk system of the water purification plant;

[0019] Determine the degree to which each of the inlet main pipes is affected by the factory wastewater;

[0020] Determine the candidate water quality monitoring point based on all the pipeline direction information and the corresponding degree of impact by the factory wastewater;

[0021] The candidate water quality monitoring points are monitored for water quality and quantity, and the target water quality monitoring point is selected from the candidate water quality monitoring points based on the monitoring results and all the investigation conclusions.

[0022] In some embodiments, monitoring the water quality and quantity of the candidate water quality monitoring points includes:

[0023] Obtain the filter backwash water volume of each inlet main pipe;

[0024] Determine the water volume of the sludge concentrated dehydrated concentrate in each of the plant inlet main pipes;

[0025] Determining the ratio of the backwash water volume of each filter tank to the total treated water volume;

[0026] The water quality and quantity of each candidate water quality monitoring point is monitored based on the backwash water volume of each filter tank, the water volume of the sludge concentration and dehydration concentrate of each inlet main pipe and each ratio.

[0027] In some embodiments, after selecting the target water quality monitoring point based on all the survey conclusions, the method further includes:

[0028] An automatic sampling device is provided at the target water quality monitoring point;

[0029] The automatic sampling device is controlled to periodically obtain a mixed sample, and water quality monitoring for the water purification plant is performed based on the mixed sample.

[0030] In a second aspect, an embodiment of the present application provides a control device, comprising at least one control processor and a memory for communicating with the at least one control processor; the memory stores instructions executable by the at least one control processor, and the instructions are executed by the at least one control processor so that the at least one control processor can execute the water quality monitoring point site selection method for a water purification plant as described in the first aspect.

[0031] In a third aspect, an embodiment of the present application further provides an electronic device, comprising the control device of the second aspect.

[0032] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the method for selecting a site for a water quality monitoring point in a water purification plant as described in the first aspect.

[0033] The embodiment of the present application provides a method, device, equipment, and medium for selecting the site of a water quality monitoring point in a water purification plant, the method comprising: determining the survey scope of the water purification plant, the survey scope including the source of water inlet outside the plant, the access situation of wastewater in the plant, and the sampling point of a 24-hour mixed sample; determining the corresponding survey content based on the source of water inlet outside the plant, the access situation of wastewater in the plant, and the sampling point of the 24-hour mixed sample, respectively, and analyzing and judging each of the survey contents to determine the corresponding survey conclusion; selecting the target water quality monitoring point based on all the survey conclusions. According to the scheme provided by the embodiment of the present application, by determining multiple survey scopes of the water purification plant and obtaining corresponding survey conclusions of the corresponding survey contents, it is possible to comprehensively consider multiple factors to determine the sampling point that most accurately reflects the quality of the inlet water, which can effectively improve the accuracy of the inlet water quality monitoring of the water purification plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a flowchart of the steps of a method for selecting a site for a water quality monitoring point in a water purification plant provided by an embodiment of the present application;

[0035] Figure 2 It is a structural diagram of a control device provided in another embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It is understood that although the functional modules are divided in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flow chart. The terms "first", "second", etc. in the specification, claims or the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0038] In the layout of comprehensive urban drainage management, the water purification plant is the final destination of sewage and wastewater, and its water quality reflects the water use and drainage conditions of the entire city. The changes in water quality and quantity before and after treatment by the water purification plant are of great significance to measuring the level of comprehensive drainage management of the entire city. When monitoring water quality and quantity at a water purification plant, mixed samples need to be collected to reflect the quality of the incoming water. However, the selection of sampling points at a water purification plant varies depending on the cause of the investigation, and it is manual sampling, which may cause problems such as inappropriate sampling point locations and sampling point locations being affected by wastewater in the plant, making it impossible to accurately reflect the incoming water quality of the water purification plant.

[0039] In order to solve the above-mentioned problems, the embodiments of the present application provide a method, device, equipment, and medium for selecting the site of a water quality monitoring point in a water purification plant. The method includes: determining the survey scope of the water purification plant, the survey scope includes the source of water inlet outside the plant, the access situation of wastewater in the plant, and the sampling point of 24-hour mixed sample; determining the corresponding survey content based on the source of water inlet outside the plant, the access situation of wastewater in the plant, and the sampling point of 24-hour mixed sample, and analyzing and judging each of the survey contents to determine the corresponding survey conclusion; selecting the target water quality monitoring point based on all the survey conclusions. According to the scheme provided by the embodiments of the present application, by determining multiple survey scopes of the water purification plant and obtaining corresponding survey conclusions of the corresponding survey contents, it is possible to comprehensively consider multiple factors to determine the sampling point that most accurately reflects the inlet water quality, which can effectively improve the accuracy of the inlet water quality monitoring of the water purification plant.

[0040] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0041] refer to Figure 1 , Figure 1Yes, the embodiment of the present application provides a method for selecting a water quality monitoring point in a water purification plant, which method includes but is not limited to the following steps:

[0042] Step S10, determining the investigation scope of the water purification plant, the investigation scope includes the source of water inlet outside the plant, the access status of wastewater in the plant and the sampling points of 24-hour mixed samples.

[0043] It can be understood that by investigating the water purification plant, the corresponding investigation scope of the water purification plant is determined. The investigation scope of this embodiment includes the source of water inlet outside the plant, the access status of wastewater within the plant and the 24-hour mixed sample sampling point. The three different investigation scopes can provide effective support for the subsequent analysis of the direction of the water inlet pipeline, the selection of the sampling range of the water quality monitoring point, and the selection of the target water quality monitoring point.

[0044] Step S20, determine the corresponding investigation contents based on the source of water inlet outside the factory, the access situation of wastewater in the factory and the sampling points of 24-hour mixed samples, analyze and judge each investigation content, and determine the corresponding investigation conclusion.

[0045] Specifically, different investigation scopes correspond to different investigation contents. In the present embodiment, when the investigation scope is the source of water inlet from outside the factory, the corresponding investigation contents include the route of the inlet main pipes, the connection relationship between the inlet main pipes and the water quality and quantity of the inlet main pipes; when the investigation scope is the access situation of wastewater within the factory, the corresponding investigation contents include the source of wastewater within the factory, the access point of wastewater within the factory and the water quality and quantity of wastewater within the factory; when the investigation scope is the 24-hour mixed sample sampling point, the corresponding investigation contents include the location of the mixed sample sampling point, the sampling method of the mixed sample sampling point and the sampling frequency of the mixed sample sampling point.

[0046] In addition, in some embodiments, when the survey content is obtained based on the source of water inflow outside the factory, the survey content includes the route of the inflow main pipe, the connection relationship between each inflow main pipe and the water quality and quantity of each inflow main pipe. Figure 1 Step S20 analyzes and judges each investigation content to determine the corresponding investigation conclusion, including but not limited to the following steps:

[0047] Step S21, determining the investigation conclusion based on the route of the inlet main pipe, the connection relationship between each inlet main pipe and the water quality and quantity of each inlet main pipe, wherein the investigation conclusion indicates that the water quality concentrations corresponding to different off-site water inlet sources are different.

[0048] It can be understood that by detecting the route of the inlet main pipes in the water purification plant's inlet network, the connection relationship between the inlet main pipes and the water quality and quantity of each inlet main pipe, and determining the off-site water source corresponding to each inlet main pipe, combined with the above-mentioned factor analysis, the following survey conclusions were obtained: There are differences in water quality concentrations corresponding to different off-site water sources, which provides an effective reference factor for the subsequent selection of target water quality monitoring points.

[0049] In addition, in some embodiments, when the survey content is obtained based on the access status of the in-plant wastewater, the survey content includes the source of the in-plant wastewater, the in-plant wastewater access point, and the water quality and quantity of the in-plant wastewater. Figure 1 Step S20 analyzes and judges each investigation content to determine the corresponding investigation conclusion, including but not limited to the following steps:

[0050] Step S22, determining a survey conclusion based on the source of the in-plant wastewater, the in-plant wastewater access point, and the water quality and quantity of the in-plant wastewater, wherein the survey conclusion indicates that different water quality concentrations corresponding to different in-plant wastewater loads are different.

[0051] It can be understood that by detecting the access situation of in-plant wastewater in water purification plants, including detecting the source of in-plant wastewater, in-plant wastewater access points and the water quality and quantity of in-plant wastewater, and determining the in-plant wastewater load caused by different in-plant wastewaters on the water purification plant, and the water quality concentration of the water purification plant corresponding to different in-plant wastewater loads, combined with the above-mentioned factors analysis, the following survey conclusions were obtained: There are differences in the water quality concentrations of water purification plants caused by different in-plant wastewater loads, thereby providing an effective reference factor for the subsequent selection of target water quality monitoring points.

[0052] In addition, in some embodiments, when the survey content is obtained based on the 24-hour mixed sample sampling point, the survey content includes the location of the mixed sample sampling point, the sampling method of the mixed sample sampling point, and the sampling frequency of the mixed sample sampling point. Figure 1 Step S20 includes but is not limited to the following steps:

[0053] Step S23, determining the investigation conclusion based on the location of the mixed sample sampling point, the sampling method of the mixed sample sampling point and the sampling frequency of the mixed sample sampling point, wherein the investigation conclusion indicates that different water quality concentrations corresponding to different mixed sample sampling point locations are different.

[0054] Specifically, the 24-hour mixed sample sampling point of this embodiment is a sampling point where water samples are collected continuously for 24 hours at a fixed location, and these water samples are mixed in a certain proportion and analyzed as samples representing the water quality status during this time period. Through 24-hour mixed sample sampling, it is possible to more comprehensively and accurately reflect the changes in water quality at the sampling point within a day, reduce the accidental errors that may be caused by single sampling, and improve the accuracy and reliability of water quality monitoring. Among them, the 24-hour mixed sample sampling point of this embodiment is a plurality of initial sampling points in the main pipe network entering the factory, which is the basis for the subsequent selection of candidate water quality monitoring points and target water quality monitoring points.

[0055] Specifically, the indicator data corresponding to the water quality concentration of the water purification plant can be selected by those skilled in the art according to actual conditions. For example, the indicator data corresponding to the water quality concentration in this embodiment is the BOD5 indicator data.

[0056] Step S30, selecting target water quality monitoring points based on all survey conclusions.

[0057] Specifically, Figure 1 Step S30 includes but is not limited to the following steps:

[0058] Step S31, determining the pipeline direction information of each inlet trunk pipe in the water inlet trunk system of the water purification plant;

[0059] Step S32, determining the degree to which each inlet main pipe is affected by the factory wastewater;

[0060] Step S33, determining candidate water quality monitoring points based on all pipeline direction information and the corresponding degree of impact of the factory wastewater;

[0061] Step S34, monitoring the water quality and quantity of the candidate water quality monitoring points, and selecting a target water quality monitoring point from the candidate water quality monitoring points based on the monitoring results and all investigation conclusions.

[0062] It can be understood that by analyzing the pipeline direction information of each inlet trunk pipe in the water inlet trunk system of the water purification plant, as well as the degree of influence of each inlet trunk pipe on the wastewater in the plant, it is possible to consider the representativeness of the incoming water quality, while avoiding the influence of production wastewater and other factors, and select candidate water quality monitoring points. For example, the area before the coarse screen and after the fine screen in the water purification plant is selected as the candidate water quality monitoring points, and the water quality and water quantity of the candidate water quality monitoring points are monitored, and the target water quality monitoring points are selected from the candidate water quality monitoring points based on the monitoring results and all the investigation conclusions. For example, in this embodiment, by analyzing the monitoring results, it is found that the incoming water all flows back to the front of the coarse screen, and the candidate water quality detection point corresponding to the front of the coarse screen is located at the forefront of the treatment process, which can directly and truly reflect the water quality entering the water purification plant, while avoiding the interference of subsequent treatment processes on the water quality monitoring results. Therefore, the candidate water quality detection point corresponding to the front of the coarse screen is determined as the target water quality monitoring point.

[0063] Specifically, in some embodiments, step S34 of monitoring water quality and quantity at the candidate water quality monitoring points includes but is not limited to the following steps:

[0064] Step S341, obtaining the filter tank backwash water volume of each inlet main pipe;

[0065] Step S342, determining the water volume of the sludge concentrated dehydrated liquid in each inlet trunk pipe;

[0066] Step S343, determining the ratio of the backwash water volume of each filter tank to the total treated water volume;

[0067] Step S344, monitoring the water quality and quantity of each candidate water quality monitoring point based on the backwash water volume of each filter tank, the water volume of the sludge concentrated dehydrated concentrate in each inlet main pipe and each ratio.

[0068] It can be understood that the steps of monitoring the water quality and quantity of candidate water quality monitoring points in this embodiment are specifically as follows: obtaining the backwash water volume of the filter tanks of each inlet main pipe, determining the water volume of the sludge thickening and dehydration concentrated liquid of each inlet main pipe, determining the ratio of the backwash water volume of each filter tank to the total treatment water volume, and monitoring the water quality and quantity of each candidate water quality monitoring point based on the backwash water volume of each filter tank, the water volume of the sludge thickening and dehydration concentrated liquid of each inlet main pipe and each ratio. The monitoring results obtained can provide an effective data basis for the subsequent selection of target water quality monitoring points.

[0069] In addition, in some embodiments, when executing Figure 1 After step S30, the method for selecting a site for a water quality monitoring point in a water purification plant according to the embodiment of the present application further includes but is not limited to the following steps:

[0070] Step S41, setting an automatic sampling device at the target water quality monitoring point;

[0071] Step S42, controlling the automatic sampling device to periodically obtain mixed samples, and performing water quality monitoring for the water purification plant based on the mixed samples.

[0072] It can be understood that since the target water quality monitoring point of this embodiment is a sampling point that most accurately reflects the influent water quality by comprehensively considering multiple factors, an automatic sampling device is set at the target water quality monitoring point to avoid errors in manual sampling and realize regular automatic collection of mixed samples, thereby effectively improving the accuracy of influent water quality monitoring for water purification plants.

[0073] like Figure 2 As shown, Figure 2 2 is a structural diagram of a control device provided in an embodiment of the present application. The present invention also provides a control device 200, including:

[0074] The processor 210 may be implemented by a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application;

[0075] The memory 220 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 220 can store an operating system and other application programs. When the technical solution provided in the embodiment of this specification is implemented by software or firmware, the relevant program code is stored in the memory 220, and the processor 210 calls and executes the water quality monitoring point site selection method for a water purification plant in the embodiment of this application;

[0076] Input / output interface 230, used to implement information input and output;

[0077] Communication interface 240, used to realize communication interaction between the apparatus and other devices, which can be realized by wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.);

[0078] bus 250 , which transmits information between the various components of the device (e.g., processor 210 , memory 220 , input / output interface 230 , and communication interface 240 );

[0079] The processor 210 , the memory 220 , the input / output interface 230 , and the communication interface 240 are connected to each other in communication within the device via the bus 250 .

[0080] In addition, an embodiment of the present application further provides an electronic device, including the control device 200 of the above embodiment.

[0081] In addition, an embodiment of the present application further provides a storage medium, which is a computer-readable storage medium and stores a computer program. When the computer program is executed by a processor, the above-mentioned method for selecting a site for a water quality monitoring point in a water purification plant is implemented.

[0082] As a non-transient computer-readable storage medium, the memory can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage devices. In some embodiments, the memory may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and are implemented to be located in one place, or may also be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0083] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed method above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically include computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0084] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above-mentioned implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions under the shared conditions without violating the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A method for selecting a water quality monitoring point in a water purification plant, characterized in that: include: Determine the survey scope of the water purification plant, which includes the source of water inlet outside the plant, the access status of wastewater within the plant and the sampling points of 24-hour mixed samples; Determine the corresponding investigation contents based on the external water inlet source, the in-plant wastewater access situation and the 24-hour mixed sample sampling points, analyze and judge each of the investigation contents, and determine the corresponding investigation conclusions; Target water quality monitoring points are selected based on all the survey conclusions.

2. The method for selecting a water quality monitoring point in a water purification plant according to claim 1, characterized in that: When the survey content is obtained based on the water source outside the factory, the survey content includes the route of the factory inlet main pipe, the connection relationship between each factory inlet main pipe and the water quality and quantity of each factory inlet main pipe; Analyze and judge each of the survey contents and determine the corresponding survey conclusions, including: The investigation conclusion is determined based on the route of the inlet main pipe, the connection relationship between the inlet main pipes and the water quality and quantity of the inlet main pipes, wherein the investigation conclusion indicates that the water quality concentrations corresponding to different off-site water inlet sources are different.

3. The method for selecting a site for a water quality monitoring point in a water purification plant according to claim 1, characterized in that: When the survey content is obtained based on the in-plant wastewater access situation, the survey content includes the source of the in-plant wastewater, the in-plant wastewater access point and the water quality and quantity of the in-plant wastewater; Analyze and judge each of the survey contents and determine the corresponding survey conclusions, including: The investigation conclusion is determined based on the source of the in-plant wastewater, the in-plant wastewater access point, and the water quality and quantity of the in-plant wastewater, wherein the investigation conclusion represents that different water quality concentrations correspond to different in-plant wastewater loads.

4. The method for selecting a water quality monitoring point for a water purification plant according to claim 1, characterized in that: When the survey content is obtained based on the 24-hour mixed sample sampling point, the survey content includes the location of the mixed sample sampling point, the sampling method of the mixed sample sampling point and the sampling frequency of the mixed sample sampling point; Analyze and judge each of the survey contents and determine the corresponding survey conclusions, including: The investigation conclusion is determined based on the location of the mixed sample sampling point, the sampling method of the mixed sample sampling point and the sampling frequency of the mixed sample sampling point, wherein the investigation conclusion represents that the water quality concentrations corresponding to different locations of the mixed sample sampling point are different.

5. The method for selecting a water quality monitoring point for a water purification plant according to claim 1, characterized in that: Based on all the above survey conclusions, target water quality monitoring points are selected, including: Determine the pipeline direction information of each of the inlet main pipes in the water inlet trunk system of the water purification plant; Determine the degree to which each of the inlet main pipes is affected by the factory wastewater; Determine candidate water quality monitoring points based on all the pipeline direction information and the corresponding degree of impact by the factory wastewater; The candidate water quality monitoring points are monitored for water quality and quantity, and the target water quality monitoring point is selected from the candidate water quality monitoring points based on the monitoring results and all the investigation conclusions.

6. The method for selecting a water quality monitoring point for a water purification plant according to claim 5, characterized in that: Conducting water quality and quantity monitoring at the candidate water quality monitoring points includes: Obtain the filter backwash water volume of each inlet main pipe; Determine the water volume of the sludge concentrated dehydrated concentrate in each of the plant inlet main pipes; Determining the ratio of the backwash water volume of each filter tank to the total treated water volume; The water quality and quantity of each candidate water quality monitoring point is monitored based on the backwash water volume of each filter tank, the water volume of the sludge concentration and dehydration concentrate of each inlet main pipe and each ratio.

7. The method for selecting a water quality monitoring point for a water purification plant according to claim 1, characterized in that: After selecting the target water quality monitoring point based on all the survey conclusions, the method further includes: An automatic sampling device is provided at the target water quality monitoring point; The automatic sampling device is controlled to periodically obtain a mixed sample, and water quality monitoring for the water purification plant is performed based on the mixed sample.

8. A control device, characterized in that: It includes at least one control processor and a memory for communicating with the at least one control processor; the memory stores instructions that can be executed by the at least one control processor, and the instructions are executed by the at least one control processor so that the at least one control processor can execute the water quality monitoring point site selection method for a water purification plant as described in any one of claims 1 to 7.

9. An electronic device, characterized in that: Comprising the control device as claimed in claim 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the method for selecting a site for a water quality monitoring point in a water purification plant as described in any one of claims 1 to 7.

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