River rainfall water quality auxiliary treatment method, device, terminal equipment and storage medium

Abstract

This application is applicable to the field of water pollution prevention and control, and provides a method, apparatus, terminal device, and storage medium for auxiliary treatment of river rainfall water quality. The method comprises: determining the maximum pollution load reduction of the river based on the water environment capacity of the river and the pollution load of rainfall runoff; further determining the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction based on a corresponding relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, so as to use the cumulative amount of rainfall runoff to be processed to perform auxiliary treatment on the cumulative rainfall to be processed to meet the standards. Through the above scheme, the problem of substandard river water quality due to rainfall is avoided.

Description

Technical Field

[0001] The present application relates to the field of water pollution prevention and control, and in particular to a method, device, terminal equipment and storage medium for auxiliary treatment of river rainfall water quality. Background Art

[0002] With the continuous development of the social economy, my country's water environment pollution problem is becoming increasingly serious. River water quality is one of the main water pollution problems currently faced. Among them, there are many factors that cause fluctuations in river water quality. The fluctuations in river water quality are more severe during rainfall. Pollutants enter the river water environment through rainfall runoff, which can easily cause river water quality to deteriorate. Therefore, the treatment of pollutants in rainfall runoff is of great significance to the protection of river water environment. However, in the current process of treating river rainfall water quality, there are still problems that need to be solved urgently, such as unclear methods for selecting rainfall events and inaccurate calculations of the cumulative amount of rainfall runoff to be treated. Summary of the Invention

[0003] The purpose of this application is to provide a method, device, terminal equipment and storage medium for auxiliary treatment of river rainfall water quality, aiming to solve the problems of unclear method for selecting rainfall events and inaccurate calculation of the cumulative amount of rainfall runoff to be processed.

[0004] A first aspect of an embodiment of the present application provides a method for assisting in achieving river rainfall water quality standards, the method comprising:

[0005] Determining a maximum pollution load reduction amount for the river channel based on the water environment capacity and rainfall runoff pollution load of the river channel;

[0006] According to the corresponding relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction is determined, so as to use the cumulative amount of rainfall runoff to be processed to perform auxiliary processing on the cumulative rainfall to be processed to meet the standards.

[0007] In an optional embodiment, the river channel is located within a set area, and the method further includes:

[0008] Selecting one rainfall event from multiple rainfall events in the set area within a preset time period;

[0009] The rainfall runoff pollution load is determined based on the rainfall runoff volume, the concentration of pollutants discharged by the rainfall runoff, and the total duration of the rainfall during the entire rainfall process corresponding to the selected rainfall event.

[0010] In an optional embodiment, selecting one rainfall event from multiple rainfall events in the set area within a preset time period includes:

[0011] From all rainfall events, the rainfall events in which the dry period before the rainfall is longer than the first preset value and the rainfall during the entire rainfall process is higher than the second preset value are selected.

[0012] In an optional embodiment, the method further includes:

[0013] A first preset value of the length of the dry period before rainfall is determined according to the pollutant increment in the set area within a unit time period.

[0014] In an optional embodiment, the method further includes:

[0015] A second preset value of the rainfall during the entire rainfall process is determined according to the rainfall in the set area within a unit time period.

[0016] In an optional embodiment, the method further includes:

[0017] Obtaining the inflow rate of the initial section of the river channel, the actual water quality concentration of the upper section of the river channel, the rainfall runoff, the water quality target concentration, the volume of the river channel, and the comprehensive attenuation coefficient;

[0018] The water environment capacity of the river channel is determined based on the inflow flow of the initial section of the river channel, the actual water quality concentration of the upper section of the river channel, the rainfall runoff, the water quality target concentration, the volume of the river channel and the comprehensive attenuation coefficient.

[0019] In an optional embodiment, the water quality of the river is characterized by multiple water quality indicators, and the method further includes:

[0020] The maximum pollution load reduction amount is determined by selecting the maximum value of the pollution load reduction amount corresponding to each water quality index in the river channel after rainfall.

[0021] A second aspect of the embodiments of the present application provides an auxiliary treatment device for achieving river rainfall water quality standards, characterized in that the river rainfall water quality standard treatment device comprises:

[0022] a maximum pollution load reduction amount determination module, which determines a maximum pollution load reduction amount based on the water environment capacity of the river channel and the rainfall runoff pollution load;

[0023] The module for determining the cumulative amount of rainfall runoff to be processed determines the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction amount based on a relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, so as to use the cumulative amount of rainfall runoff to be processed to perform auxiliary processing on the cumulative rainfall to be processed to meet the standards.

[0024] A third aspect of an embodiment of the present application provides a terminal device for auxiliary processing of river rainfall water quality standards, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in the first aspect when executing the computer program.

[0025] A fourth aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and is characterized in that when the computer program is executed by a processor, the method described in the first aspect is implemented.

[0026] A fifth aspect of the embodiments of the present application provides a computer program product, which, when executed on a terminal device, enables the terminal device to execute the method described in the first aspect.

[0027] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows: the river rainfall water quality auxiliary treatment method provided by the present application is adopted, the corresponding rainfall event is selected by setting the rainfall event selection standard, and then the rainfall runoff pollution load is determined, the maximum pollution load reduction amount is determined based on the rainfall runoff pollution load amount and the water environment capacity of the river, and the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction amount is further determined according to the corresponding relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, and the cumulative amount of rainfall runoff to be processed is used to perform auxiliary treatment on the cumulative rainfall to be processed to meet the standards, thereby solving the problems of unclear rainfall event selection method and inaccurate calculation of the cumulative amount of rainfall runoff to be processed, and assisting the river rainfall water quality to maintain compliance with the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 A flow chart of an auxiliary processing method for achieving river rainfall water quality standards provided in an embodiment of the present application;

[0030] Figure 2 The corresponding relationship between the cumulative percentage of rainfall runoff and the cumulative percentage of rainfall runoff pollution load provided in the embodiment of the present application;

[0031] Figure 3 The corresponding relationship between the cumulative percentage of rainfall runoff and the cumulative percentage of rainfall runoff pollution load of the road surface provided in the embodiment of the present application;

[0032] Figure 4 A schematic diagram of the structure of an auxiliary treatment device for achieving river rainfall water quality standards provided in an embodiment of the present application;

[0033] Figure 5 A schematic structural diagram of a terminal device for auxiliary treatment of river rainfall water quality standards provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0035] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0036] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0037] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0038] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0039] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0040] Ensuring that river rainfall water quality meets standards is a key concern in the field of water pollution prevention and control. However, there is currently no unified standard for selecting rainfall events and analyzing and calculating the cumulative amount of rainfall runoff to be processed. Existing traditional calculation methods still suffer from inaccuracies. In light of this, the present application provides a method, apparatus, terminal device, and storage medium for auxiliary treatment of river rainfall water quality.

[0041] The present application specifically comprises the following steps: classifying rivers into different types and selecting rivers whose water quality meets the standard before rainfall but does not meet the standard after rainfall; selecting a qualifying rainfall event from multiple rainfall events in a set area within a preset time period, based on the set range of the dry period before rainfall and the rainfall during the entire rainfall process; determining the rainfall runoff pollution load according to the rainfall runoff volume, rainfall runoff pollutant concentration and total rainfall duration during the entire rainfall process corresponding to the selected rainfall event; determining the water environment capacity of the river according to the inflow flow of the initial section of the river, the actual water quality concentration of the upper section of the river, the rainfall runoff volume, the water quality target concentration, the volume of the river and the comprehensive attenuation coefficient, as well as the preset river water quality compliance parameters; determining the maximum pollution load reduction of the river based on the water environment capacity of the river and the rainfall runoff pollution load; establishing a corresponding relationship model between the rainfall runoff accumulation and the corresponding pollution load reduction accumulation, and determining the to-be-processed rainfall runoff accumulation corresponding to the maximum pollution load reduction according to the model, so as to utilize the to-be-processed rainfall runoff accumulation to perform standard-compliant auxiliary processing on the to-be-processed accumulated rainfall. The above scheme assists in maintaining the standard of rainfall water quality in rivers by establishing a calculation method for the maximum pollution load reduction in rivers and the cumulative amount of rainfall runoff to be treated.

[0042] It should be understood that the size of the serial numbers of each step in this embodiment does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of this application.

[0043] In order to illustrate the technical solution of the present application, specific embodiments are provided below.

[0044] Reference Figure 1 , which shows a flow chart of an auxiliary processing method for achieving river rainfall water quality standards provided in an embodiment of the present application.

[0045] Step 101: determining a maximum pollution load reduction amount for the river based on the water environment capacity of the river and the pollution load of rainfall runoff;

[0046] In the embodiment of the present application, the water environment capacity of the river needs to be determined based on the inflow flow of the initial section of the river, the actual water quality concentration of the upper section of the river, the rainfall runoff, the target water quality concentration, the volume of the river, and the comprehensive attenuation coefficient. The calculation formula of the water environment capacity of the river can be expressed as the following equation:

[0047] W=Q0(C S -C0)×86.4+qC S ×86.4+KVC S ×0.001

[0048] Among them, W refers to the water environment capacity of the river; C0 refers to the actual water quality concentration of the section on the river; C S It refers to the target concentration of river water quality standards; K refers to the comprehensive attenuation coefficient; Q0 refers to the inflow flow at the initial section of the river; q refers to the rainfall runoff; V refers to the water volume of the river.

[0049] It should be noted that the calculation of river water environment capacity can be further determined through other methods.

[0050] In this embodiment of the present application, COD, TP, TN, and NH3-N are selected as the main pollutant indicators for assessing water environmental capacity. The water quality target for the river channel is set to the surface water Class IV water index, where the pollutant indicators are: COD ≤ 30 mg / L, NH3-N ≤ 1.5 mg / L, TN ≤ 1.5 mg / L, TP ≤ 0.3 mg / L. In other embodiments of the present application, the water quality target for the river channel can be set to other levels, such as the surface water Class III water index.

[0051] It should be noted that the total amount of river pollution load control method adopted in the embodiment of the present application is that within the selected river range, the overall river water quality is guaranteed to meet the requirements, rather than the water quality of each river section or at each moment reaching the set water quality target.

[0052] Specifically, by treating the river channel as a whole, when the pollution load of rainfall runoff enters the river channel, if the overall water quality of the river channel meets the standard, the treatment requirements can be met. Compared with traditional pollutant concentration control methods, this application can reduce engineering investment and control costs.

[0053] In the embodiment of the present application, the determination of rainfall runoff requires obtaining the area distribution data of each underlying surface in the set area and reasonably setting the runoff coefficient of each underlying surface. The calculation formula for rainfall runoff can be expressed as the following equation:

[0054]

[0055] For example, the underlying surface in the set area includes buildings, roads, green spaces and water bodies, and the coefficients of the above underlying surfaces are set to 0.75, 0.9, 0.15 and 1 respectively. The comprehensive runoff coefficient is calculated based on the area ratio of each underlying surface to be 0.37. The area of ​​the set area is 4937.78 hectares, the rainfall is 44.7 mm, and the runoff time is 1 day. The rainfall runoff calculated according to the above formula is 9.45m 3 / s.

[0056] To simplify the calculation, in the water quality model, the physical degradation, chemical degradation and biological degradation of pollutants in the water environment are generalized as a comprehensive attenuation coefficient. In the embodiment of the present application, the comprehensive attenuation coefficient of COD is set to 0.15l / d, NH3-N is 0.12l / d, TN is 0.008l / d, and TP is 0.1l / d.

[0057] In order to ensure that the river water quality goals are achieved and to deal with uncertainties in the calculation, a certain safety margin needs to be considered in the calculation of the water environment capacity. In the embodiment of this application, the safety factor is taken as 0.8.

[0058] For example, using the calculation of the water environmental capacity of COD in a river as an example, the initial COD concentration in the river is 26.6 mg / L, the target concentration is 30 mg / L, the comprehensive attenuation coefficient is 0.15, and the safety factor is 0.8. According to the calculation formula for water environmental capacity, the water environmental capacity of COD in the river is 28457.68 kg / d. The calculation method for the water environmental capacity of NH3-N, TN, and TP in the river can refer to the above method.

[0059] It should be noted that, in the embodiment of the present application, the water quality of the rivers in the set area is divided into four categories: the first category is that the river water quality compliance rate before and after rainfall is less than a first preset value; the second category is that the river water quality compliance rate before rainfall is between the first preset value and the second preset value; the third category is that the river water quality compliance rate before rainfall is greater than the second preset value, and the river water quality after rainfall does not meet the standard; the fourth category is that the river water quality meets the standard both before and after rainfall.

[0060] For example, in the embodiment of the present application, the first category of river water quality conditions is that the river water quality compliance rate before and after rainfall is less than 30%; the second category is that the river water quality compliance rate before rainfall is between 30% and 70%; the third category is that the river water quality compliance rate before rainfall is greater than 70%, and the river water quality after rainfall does not meet the standards; the fourth category is that the river water quality compliance rate before and after rainfall is 100%.

[0061] It should be noted that the auxiliary processing method for river rainfall water quality compliance provided in the embodiment of the present application is mainly aimed at rivers with water quality conditions of the third category, that is, rivers with a water quality compliance rate greater than 70% before rainfall but substandard after rainfall.

[0062] In the embodiment of the present application, in order to determine the pollution load of rainfall runoff, it is necessary to monitor the selected rainfall events in the set area. The monitoring points include underlying surfaces such as building roofs, roads, green spaces and river sections. The main focus is on monitoring the changes in the concentration data of COD, TP, TN and NH3-N on each underlying surface throughout the rainfall process, and simulating the concentration changes of pollutants entering the river based on the model. The rainfall runoff pollution load is calculated after fully considering the material balance relationship of water quantity and quality.

[0063] It should be understood that in the process of surface runoff caused by any rainfall, the concentration of pollutants in the runoff will change by orders of magnitude over time due to random changes in rainfall intensity. Therefore, the concentration of pollutants can be calculated using the concept of "event mean concentration (EMC)". The calculation formula of EMC can be expressed as the following equation:

[0064]

[0065] Among them, M refers to the total amount of a pollutant discharged by rainfall runoff; V refers to the total surface runoff volume caused by a rainfall; Ct refers to the instantaneous concentration of a pollutant at time t; Qt refers to the runoff discharge of surface runoff at time t; T refers to the total duration of a rainfall.

[0066] Therefore, the calculation formula for the pollution load of rainfall runoff during the entire rainfall process can be expressed as the following equation:

[0067]

[0068] In an embodiment of the present application, for the selection of rainfall events, it is necessary to select one rainfall event from multiple rainfall events in a set area within a preset time period, and determine the rainfall runoff pollution load based on the rainfall runoff volume, rainfall runoff pollutant concentration and total rainfall duration of the entire rainfall process corresponding to the selected rainfall event.

[0069] It should be noted that the method for selecting rainfall events includes: determining a first preset value for the length of the dry period before rainfall and a second preset value for the amount of rainfall during the entire rainfall process based on the increase in pollutants in a unit time period in a set area, and selecting rainfall events that meet the first preset value and the second preset value.

[0070] It is understandable that, for example, the first heavy rain in spring, after a long period of dryness and no rain in winter, a large amount of pollutants have accumulated on the underlying surface of the set area. At this time, the pollution load of rainfall runoff formed by heavy rainfall is large, which can easily cause fluctuations in river water quality or even substandard water quality. Therefore, it is of certain reference value to select rainfall events with a long dry period and that meet the heavy rain level.

[0071] For example, in the set area of ​​the embodiment of the present application, a rainfall event is selected in which the dry period before the summer rainfall is not less than 14 days and the rainfall during the entire rainfall process is between 25 mm / d and 50 mm / d.

[0072] For example, in the set area of ​​the embodiment of the present application, a rainfall event is selected in which the dry period before the summer rainfall is longer than 7 days and the rainfall during the entire rainfall process exceeds 50 mm / d.

[0073] For example, in the set area of ​​the embodiment of the present application, rainfall events are selected in which the dry period before non-summer rainfall is greater than 14 days and the rainfall during the entire rainfall process is between 25 mm / d and 50 mm / d.

[0074] In the embodiment of the present application, the calculation formula for the pollution load reduction of the river can be expressed as the following equation:

[0075] Pollution load reduction = rainfall runoff pollution load - water environment capacity

[0076] For example, the rainfall runoff pollution load corresponding to the selected rainfall events in the set area is first calculated. Secondly, the water environment capacity corresponding to the river water quality recovering to the set water quality target within a preset time range is calculated. The pollution load reduction of the river is calculated according to the above calculation formula.

[0077] Specifically, the preset time range for the river water quality to recover to the set water quality target can be set to 24 hours, 48 ​​hours or 72 hours, and the corresponding pollution load reduction treatment measures can meet the treatment requirements.

[0078] It should be noted that the maximum pollution load reduction amount needs to be determined by selecting the maximum value of the pollution load reduction amount corresponding to each water quality index in the river channel after rainfall.

[0079] For example, the pollution load reduction corresponding to COD, TP, TN and NH3-N in the set area can be calculated through the above formula, and the maximum value is determined by numerical comparison, which is the maximum pollution load reduction of the river.

[0080] Step 102 : Determine the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction amount based on a corresponding relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, so as to use the cumulative amount of rainfall runoff to be processed to perform auxiliary processing for achieving the standard.

[0081] It should be noted that in the process of surface runoff caused by any rainfall, the random changes in rainfall intensity will cause the concentration of pollutants in the runoff to change by orders of magnitude over time. Therefore, in the entire rainfall process of the rainfall events selected in the embodiment of the present application, there is a certain correspondence between the cumulative amount of rainfall runoff and the cumulative amount of rainfall runoff pollution load. Further, through the correspondence between the cumulative amount of rainfall runoff pollution load and the rainfall runoff pollution load, as well as the correspondence between the rainfall runoff pollution load and the pollution load reduction, it can be obtained that there is a certain correspondence between the cumulative amount of rainfall runoff and the pollution load reduction.

[0082] In addition, since there is a one-to-one correspondence between the cumulative amount of rainfall runoff and the cumulative percentage of rainfall runoff, and a one-to-one correspondence between the cumulative amount of rainfall runoff pollution load and the cumulative percentage of rainfall runoff pollution load, there is a certain correspondence between the cumulative percentage of rainfall runoff and the cumulative percentage of rainfall runoff pollution load during the entire rainfall process of the rainfall events selected in the embodiment of the present application.

[0083] Taking the pollution load reduction corresponding to COD as the maximum pollution load reduction of the river as an example, refer to Figure 2 and Figure 3 , respectively, established the corresponding relationship diagrams between the cumulative percentage of rainfall runoff pollution load and the cumulative percentage of rainfall runoff corresponding to the building roof and road surface.

[0084] For example, according to calculations, the rainfall runoff pollution load corresponding to COD is 30035.77 kg / d, and the water environment capacity of the river is 28457.68 kg / d. Therefore, the corresponding maximum pollution load reduction is 1578.09 kg / d, which is 5.25% of the rainfall runoff pollution load corresponding to COD. Therefore, it is necessary to control the cumulative percentage of rainfall runoff pollution load to 5.25% of the cumulative amount of rainfall runoff corresponding to the pollution load.

[0085] according to Figure 2The corresponding relationship can be obtained. For the roof, the cumulative percentage of rainfall runoff pollution load is 5.25%, and the corresponding cumulative percentage of rainfall runoff is 2.49%. Since the rainfall is 44.7 mm, the cumulative amount of rainfall runoff is 1.11 mm. According to Figure 3 The corresponding relationship in

[15] shows that for road surfaces, a 5.25% cumulative percentage of runoff pollution load corresponds to a 4.21% cumulative percentage of runoff, and the corresponding runoff accumulation is 1.88 mm. Since roofs and roads account for 0.66% and 0.34% of their total area, respectively, a weighted average calculation yields a runoff accumulation of 1.37 mm. Therefore, the runoff accumulation that needs to be reduced and controlled is the first 1.37 mm of rainfall.

[0086] It should be noted that the embodiments of the present application mainly achieve the maximum pollution load reduction by treating the rainfall runoff pollution load of roofs and roads in the underlying surface. In other embodiments of the present application, it can also be considered to increase the treatment of rainfall runoff pollution load of grasslands and water bodies to achieve the maximum pollution load reduction and ensure that the rainfall water quality in rivers meets the standards.

[0087] In addition, after determining the cumulative amount of rainfall runoff that needs to be reduced, technicians in this field can choose engineering measures to reduce rainfall runoff according to the relevant conditions of the set area where the river is located, and can adopt various measures such as controlling the source, process, and end to deal with it.

[0088] Figure 4 This is a structural schematic diagram of an auxiliary treatment device for achieving river rainfall water quality standards provided in an embodiment of the present application. For the sake of convenience, only the parts related to the embodiment of the present application are shown.

[0089] The auxiliary treatment device for river rainfall water quality compliance can specifically include the following modules:

[0090] A maximum pollution load reduction amount determination module 401 is configured to determine a maximum pollution load reduction amount based on the water environment capacity of the river channel and the rainfall runoff pollution load;

[0091] The module 402 for determining the cumulative amount of rainfall runoff to be processed is used to determine the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction amount based on the relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, so as to use the cumulative amount of rainfall runoff to be processed to perform auxiliary processing on the cumulative rainfall to be processed to meet the standards.

[0092] Figure 5 This is a schematic diagram of a terminal device for assisting with river rainfall water quality standards provided in an embodiment of the present application. The terminal device 500 includes: at least one processor 501 ( Figure 5Only one is shown in the figure) a processor, a memory 502, and a computer program 503 stored in the memory 502 and executable on the at least one processor 501. When the processor 501 executes the computer program 503, the steps in the embodiment of the above-mentioned method for auxiliary processing of river rainfall water quality reaching standards are implemented.

[0093] The terminal device 500 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal device may include, but is not limited to, a processor 501 and a memory 502. Those skilled in the art will understand that Figure 5 This is merely an example of the terminal device 500 and does not constitute a limitation on the terminal device 500 . The terminal device 500 may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device 500 may also include input and output devices, network access devices, etc.

[0094] The processor 501 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor may be a microprocessor or any conventional processor.

[0095] In some embodiments, the memory 502 may be an internal storage unit of the terminal device 500, such as a hard disk or memory of the terminal device 500. In other embodiments, the memory 502 may also be an external storage device of the terminal device 500, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal device 500. Furthermore, the memory 502 may also include both an internal storage unit of the terminal device 500 and an external storage device. The memory 502 is used to store an operating system, application programs, a boot loader, data, and other programs, such as the program code of the computer program. The memory 502 may also be used to temporarily store data that has been output or is about to be output.

[0096] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0097] In the above embodiments, the description of each embodiment has different emphases. If a rated part is not described or recorded in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0098] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned various method embodiments can be implemented.

[0099] An embodiment of the present application provides a computer program product. When the computer program product is run on a mobile terminal, the mobile terminal can implement the steps in the above-mentioned various method embodiments when executing the computer program product.

[0100] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the process of the above-mentioned method embodiment by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, it can implement the steps of each of the above-mentioned method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file, or some intermediate form. The computer-readable medium can at least include: any entity or device capable of carrying computer program code to the camera / terminal device, recording medium, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal, and software distribution medium. For example, a USB flash drive, mobile hard drive, magnetic disk, or optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals or telecommunication signals.

[0101] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0102] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0103] In the embodiments provided in this application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely illustrative. For example, the division of the modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0104] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0105] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A method for assisting river rainfall water quality treatment to meet standards, characterized in that: The method comprises: Determining a maximum pollution load reduction amount for the river channel based on the water environment capacity and rainfall runoff pollution load of the river channel; Determining the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction amount according to a corresponding relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, so as to use the cumulative amount of rainfall runoff to be processed to perform auxiliary processing for achieving the standard on the cumulative rainfall to be processed; The river is located in a set area, and the water quality of the river meets the standard before rainfall but does not meet the standard after rainfall; the method further includes: Selecting one rainfall event from multiple rainfall events in the set area within a preset time period based on the length of the dry period before the rainfall and the rainfall during the entire rainfall process; The rainfall runoff pollution load is determined based on the rainfall runoff volume, the concentration of pollutants discharged by the rainfall runoff, and the total duration of the rainfall during the entire rainfall process corresponding to the selected rainfall event.

2. The method according to claim 1, characterized in that According to the duration of the dry period before the rainfall and the rainfall during the entire rainfall process, one rainfall event is selected from multiple rainfall events in the set area within a preset time period, including: From all rainfall events, the rainfall events in which the dry period before the rainfall is longer than the first preset value and the rainfall during the entire rainfall process is higher than the second preset value are selected.

3. The method according to claim 2, characterized in that The method further comprises: A first preset value of the length of the dry period before rainfall is determined according to the pollutant increment in the set area within a unit time period.

4. The method according to claim 2, characterized in that The method further comprises: A second preset value of the rainfall during the entire rainfall process is determined according to the rainfall in the set area within a unit time period.

5. The method according to claim 1, wherein The method further comprises: Obtaining the inflow rate of the initial section of the river channel, the actual water quality concentration of the upper section of the river channel, the rainfall runoff, the water quality target concentration, the volume of the river channel, and the comprehensive attenuation coefficient; The water environment capacity of the river channel is determined based on the inflow flow of the initial section of the river channel, the actual water quality concentration of the upper section of the river channel, the rainfall runoff, the water quality target concentration, the volume of the river channel and the comprehensive attenuation coefficient.

6. The method according to claim 1, characterized in that The water quality of the river is characterized by a plurality of water quality indicators, and the method further comprises: The maximum pollution load reduction amount is determined by selecting the maximum value of the pollution load reduction amount corresponding to each water quality index in the river channel after rainfall.

7. An auxiliary treatment device for river rainfall water quality reaching standards, characterized in that: The river rainfall water quality treatment device includes: a maximum pollution load reduction amount determination module, which determines a maximum pollution load reduction amount based on the water environment capacity of the river channel and the rainfall runoff pollution load; a module for determining the cumulative amount of rainfall runoff to be processed, which determines the cumulative amount of rainfall runoff to be processed corresponding to the maximum pollution load reduction amount based on a relationship model between the cumulative amount of rainfall runoff and the corresponding cumulative amount of pollution load reduction, so as to use the cumulative amount of rainfall runoff to be processed to perform auxiliary processing for achieving the standard on the cumulative rainfall to be processed; The river is located in a set area, and the water quality of the river meets the standard before rainfall but does not meet the standard after rainfall; the river rainfall water quality standard treatment device is also used to: According to the length of the dry period before rainfall and the rainfall during the entire rainfall process, one rainfall event is selected from multiple rainfall events in the set area within a preset time period; based on the rainfall runoff volume, rainfall runoff pollutant concentration and total rainfall duration of the entire rainfall process corresponding to the selected rainfall event, the rainfall runoff pollution load is determined.

8. A terminal device for assisting river rainfall water quality in reaching standards, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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