Water quality sampling and testing method and device for textile wastewater before discharge

Abstract

The present application relates to the field of water quality detection, and discloses a method and device for sampling and detecting water quality before discharge of textile wastewater. The method comprises: obtaining each water quality index of a plurality of water quality index groups detected in textile wastewater treatment; when the first water quality index in the target water quality index group meets the first water quality index condition, increasing the number of sensors or the number of detection times for detecting water quality indexes other than the first water quality index in the target water quality index group; when the first water quality index in the target water quality index group does not meet the first water quality index condition, maintaining the number of sensors and the number of detection times for detecting water quality indexes other than the first water quality index in the target water quality index group unchanged; and determining the subsequent treatment strategy for textile wastewater treatment according to each water quality index in the detected target water quality index group. The present application can adjust the setting of the sensor according to the wastewater index, thereby ensuring the accuracy of wastewater index detection.

Description

Technical Field

[0001] The present application relates to the technical field of water quality detection, and more specifically, to a method and device for sampling and detecting water quality before discharge of textile wastewater. Background Art

[0002] In the production process of textile printing and dyeing, the wastewater of the textile industry has complex components, including a variety of fiber raw materials, pulp, dyes, auxiliaries and chemical agents, etc. These wastewater components make the wastewater water quality have a large chromaticity, high COD (chemical oxygen demand) and BOD (biological oxygen demand), and textile wastewater also has the characteristics of large changes in pH. When treating textile wastewater, a single wastewater treatment method is often difficult to achieve the ideal treatment effect, so it is necessary to combine multiple treatment methods such as physical, chemical and biological methods, such as physical filtration and precipitation; chemical neutralization and oxidation; biological microbial metabolism, etc. In the treatment process of textile wastewater, it is necessary to detect the intermediate treatment process of the wastewater to ensure the treatment effect of textile wastewater.

[0003] Patent CN117129643B (application number: CN202311095366.7) provides a wastewater detection system and method, including a treatment layer, an analysis layer and a rotation layer; the wastewater to be discharged is purified by the treatment layer, and the wastewater parameter collection is completed synchronously in the treatment layer. The collected wastewater parameter data is fed back to the analysis layer, and the analysis layer completes the wastewater quality assessment based on the received wastewater parameters. Through the comprehensive collection of wastewater parameters, the wastewater quality can be evaluated at each stage of the wastewater treatment process, thereby providing different rotation paths for the wastewater according to the wastewater quality assessment results, so that when the wastewater quality still does not meet the discharge standard after the treatment is completed, it can be automatically rotated and processed again. The water quality detection method in patent CN117129643B can detect the wastewater quality after the treatment is completed, and perform re-processing when it does not meet the requirements. However, the method in patent CN117129643B cannot guarantee the accuracy of wastewater index detection when the water quality sensor fails. Summary of the invention

[0004] The purpose of this application is to provide a method and device for sampling and detecting water quality before textile wastewater is discharged, which solves the technical problem that the accuracy of wastewater index detection cannot be guaranteed when a water quality sensor fails, and achieves the technical effect of being able to adjust the sensor settings according to the wastewater index, thereby ensuring the accuracy of wastewater index detection.

[0005] The embodiment of the present application provides a method for sampling and detecting water quality before discharging textile wastewater, and the method includes: obtaining each water quality indicator of multiple water quality indicator groups detected in textile wastewater treatment; wherein each water quality indicator group includes multiple water quality indicators that have a correlated impact on the wastewater treatment effect; when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, increasing the number of sensors or the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group; when the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, keeping the number of sensors and the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group unchanged; obtaining water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determining the subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the detected target water quality indicator group.

[0006] In one possible implementation, the target water quality index group includes a pH value and a biological oxygen demand BOD, and the first water quality index condition includes that the pH value is not within a preset pH value range or that the biological oxygen demand BOD is greater than a preset biological oxygen demand BOD; or, the target water quality index group includes a total nitrogen value TN and a total phosphorus value TP, and the first water quality index condition includes that the total nitrogen value TN is less than a preset total nitrogen value TN or that the total phosphorus value TP is less than a preset total phosphorus value TP; or, the target water quality index group includes a temperature value and a dissolved oxygen amount DO, and the first water quality index condition includes that the temperature value is not within a preset temperature range or that the dissolved oxygen amount DO is less than a preset dissolved oxygen amount DO; or, the target water quality index group includes a suspended solids amount SS and a chromaticity value, and the first water quality index condition includes that the suspended solids amount SS is greater than a preset suspended solids amount SS or that the chromaticity value is greater than a preset chromaticity value.

[0007] In another possible implementation, the method also includes: transporting the same batch of textile wastewater through multiple wastewater pipelines, and detecting each water quality indicator of multiple water quality indicator groups on each wastewater pipeline; when the first water quality indicator in the target water quality indicator group in the first wastewater pipeline meets the first water quality indicator condition, increasing the number of sensors or the number of detections in the remaining pipelines for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group; when the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, keeping the number of sensors and the number of detections used to detect water quality indicators other than the first water quality indicator in the target water quality indicator group unchanged; obtaining the water quality detection results in all wastewater pipelines for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determining the subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the target water quality indicator group detected by all wastewater pipelines.

[0008] In another possible implementation, a subsequent treatment strategy for textile wastewater treatment is determined based on each water quality indicator in the detected target water quality indicator group, including: taking the average value or maximum value of the detection value of the second water quality indicator in the target water quality indicator group as the second water quality indicator in the target water quality indicator group; when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition and the second water quality indicator in the target water quality indicator group does not meet the emission standard, controlling the textile wastewater to flow back and re-treating the wastewater; when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition and the water quality indicators in the target water quality indicator group other than the first water quality indicator meet the emission standard, adjusting the first water quality indicator to meet the emission standard.

[0009] In another possible implementation, a subsequent treatment strategy for textile wastewater treatment is determined based on each water quality indicator in the target water quality indicator group detected by all wastewater pipelines, including: taking the average value or maximum value of the detection value of the second water quality indicator in the target water quality indicator group in all wastewater pipelines as the second water quality indicator in the target water quality indicator group; when the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the second water quality indicator in the target water quality indicator group of at least one wastewater pipeline does not meet the emission standard, controlling the textile wastewater to flow back and re-treating the wastewater; when the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the water quality indicators in the target water quality indicator group of all wastewater pipelines except the first water quality indicator meet the emission standard, adjusting the first water quality indicator to meet the emission standard.

[0010] In another possible implementation, the target water quality index group includes pH value and biological oxygen demand (BOD), and the first water quality index condition includes that the fluctuation amplitude of pH value or biological oxygen demand (BOD) is greater than the first fluctuation amplitude; or, the target water quality index group includes total nitrogen value (TN) and total phosphorus value (TP), and the first water quality index condition includes that the fluctuation amplitude of total nitrogen value (TN) or total phosphorus value (TP) is greater than a preset second fluctuation amplitude; or, the target water quality index group includes temperature value and dissolved oxygen (DO), and the first water quality index condition includes that the fluctuation amplitude of dissolved oxygen (DO) or the preset dissolved oxygen (DO) is greater than a preset third fluctuation amplitude; or, the target water quality index group includes suspended solids (SS) and chromaticity value, and the first water quality index condition includes that the fluctuation amplitude of suspended solids (SS) or the chromaticity value is greater than a preset fourth fluctuation amplitude.

[0011] In another possible implementation, when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, the number of sensors used to detect water quality indicators other than the first water quality indicator in the target water quality indicator group is increased, including: when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, determining a first position of the sensor used to detect the first water quality indicator, and determining a second position of the sensor used to detect water quality indicators other than the first water quality indicator in the target water quality indicator group, and adding a sensor for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group on the side of the first position away from the second position.

[0012] In another possible implementation, the method also includes: when the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the second water quality indicator in the target water quality indicator group of at least one wastewater pipeline does not meet the discharge standard, and the duration is greater than the first time period, controlling the textile wastewater to flow back and re-treating the wastewater.

[0013] In another possible implementation, the method also includes: when the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the second water quality indicator in the target water quality indicator group of at least one wastewater pipeline does not meet the emission standard, and the duration is less than or equal to the first time period, adjusting the first water quality indicator and the second water quality indicator to meet the emission standard.

[0014] The embodiment of the present application also provides a water quality sampling and detection device before the discharge of textile wastewater, which uses the above-mentioned water quality sampling and detection before the discharge of textile wastewater to detect textile wastewater, including multiple water quality sensors and a control component, and the multiple water quality sensors are used to detect each water quality indicator of multiple water quality indicator groups in textile wastewater treatment. The multiple water quality sensors are electrically connected to the control component, and the control component is used to obtain water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determine the subsequent treatment strategy for textile wastewater treatment according to each water quality indicator in the detected target water quality indicator group.

[0015] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0016] The embodiment of the present application provides a method for sampling and detecting water quality before discharging textile wastewater, and the method includes: obtaining each water quality indicator of multiple water quality indicator groups detected in textile wastewater treatment; wherein each water quality indicator group includes multiple water quality indicators that have a correlated impact on the wastewater treatment effect; when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, increasing the number of sensors or the number of detections for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group; when the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, keeping the number of sensors and the number of detections for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group unchanged; obtaining water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determining the subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the detected target water quality indicator group. This method is applied to water quality detection in the treatment process of textile wastewater before discharge, and can determine multiple water quality indicators that have a correlated impact on the wastewater treatment effect. When the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, the number of sensors used to detect water quality indicators other than the first water quality indicator in the target water quality indicator group is increased to ensure the accuracy of the water quality indicator detection results, to improve the dynamic detection accuracy in water quality detection, and to ensure the accuracy of wastewater indicator detection when a water quality sensor fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative labor.

[0018] Figure 1 A schematic flow chart of a method for sampling and testing water quality of textile wastewater before discharge provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the detection process of a method for sampling and detecting water quality of textile wastewater before discharge provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the structure of a water quality sampling and detection device for textile wastewater before discharge provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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.

[0022] It should be noted that when a component or structure is referred to as being "fixed to" or "disposed on" another component or structure, it may be directly on the other component or structure or indirectly on the other component or structure. When a component or structure is referred to as being "connected to" another component or structure, it may be directly connected to the other component or structure or indirectly connected to the other component or structure.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or a component or structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] The water quality detection method in the prior art can detect the quality of wastewater after the treatment is completed, and perform re-treatment when it does not meet the requirements. However, the existing method cannot guarantee the accuracy of wastewater index detection when the water quality sensor fails.

[0026] Based on the above reasons, an embodiment of the present application provides a water quality sampling and detection method before textile wastewater discharge, and the method includes: obtaining each water quality indicator of multiple water quality indicator groups detected in textile wastewater treatment; wherein each water quality indicator group includes multiple water quality indicators that have a correlated impact on the wastewater treatment effect; when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, increasing the number of sensors or the number of detections for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group; when the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, keeping the number of sensors and the number of detections for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group unchanged; obtaining water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determining the subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the detected target water quality indicator group. This method is applied to water quality detection in the treatment process of textile wastewater before discharge, and can determine multiple water quality indicators that have a correlated impact on the wastewater treatment effect. When the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, the number of sensors used to detect water quality indicators other than the first water quality indicator in the target water quality indicator group is increased to ensure the accuracy of the water quality indicator detection results, to improve the dynamic detection accuracy in water quality detection, and to ensure the accuracy of wastewater indicator detection when a water quality sensor fails.

[0027] In some scenarios, a method for sampling and testing water quality before the discharge of textile wastewater according to an embodiment of the present application can be applied to the detection of the treatment process of textile wastewater before discharge. It is suitable for high-precision water quality detection of various water quality indicators in various treatment methods in the treatment of textile wastewater, which can improve the accuracy of water quality detection and ensure the accuracy of water quality detection when the water flow rate is large.

[0028] The following is a detailed description of a method for sampling and testing the water quality of textile wastewater before discharge provided in an embodiment of the present application with reference to specific examples.

[0029] Figure 1 A schematic diagram of a method for sampling and testing water quality of textile wastewater before discharge provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the method includes S110 to S130, and S110 to S130 are described in detail below.

[0030] S110, obtaining each water quality index of a plurality of water quality index groups detected in the textile wastewater treatment, wherein each water quality index group includes a plurality of water quality indexes that have a correlation influence on the wastewater treatment effect.

[0031] In the treatment of textile wastewater, due to the high complexity of pollutants in textile wastewater, it is necessary to treat textile wastewater in a variety of ways, and it is also necessary to monitor a variety of indicators of textile wastewater. In the treatment process of textile wastewater, the various wastewater indicators of textile wastewater may affect each other. When one wastewater indicator is abnormal, it may affect other indicators in wastewater treatment and the treatment effect of wastewater. For example, when the pH value of wastewater is abnormal, it will affect the treatment effect of microorganisms in wastewater, which will lead to a deterioration in the treatment effect of wastewater, a decrease in the amount of microorganisms in wastewater, and a decrease in the biological oxygen demand (BOD) in wastewater.

[0032] Therefore, each water quality index of multiple water quality index groups detected in textile wastewater treatment can be obtained, and each water quality index group includes multiple water quality indexes that have a correlation effect on the wastewater treatment effect, and then the water quality indexes that have a correlation effect on the wastewater treatment effect are monitored, and the accuracy of monitoring the water quality indexes that have a correlation effect on the wastewater treatment effect is ensured to ensure the treatment effect of the wastewater treatment. Among them, multiple water quality indexes that have a correlation effect on the wastewater treatment effect are multiple water quality indexes that may affect other indicators in the wastewater treatment and the wastewater treatment effect when one wastewater index is abnormal.

[0033] S120: When the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, increase the number of sensors or the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group. When the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, keep the number of sensors and the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group unchanged.

[0034] When treating textile wastewater, when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, the first water quality indicator condition is the condition that the first water quality indicator exceeds the standard. At this time, it means that the first water quality indicator has reached the level of exceeding the standard. The number of sensors or the number of detections for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group can be increased, thereby improving the detection accuracy of water quality indicators other than the first water quality indicator in the target water quality indicator group, thereby improving the detection accuracy of the target water quality indicator group.

[0035] Exemplarily, when increasing the number of sensors used to detect water quality indicators other than the first water quality indicator in the target water quality indicator group, the number of sensors for water quality indicators other than the first water quality indicator in the target water quality indicator group can be increased by at least 2 to adapt to the characteristics of fast water flow velocity and large water quality volatility in textile wastewater treatment.

[0036] Exemplarily, when increasing the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, the number of detection times for water quality indicators other than the first water quality indicator in the target water quality indicator group that cannot be directly detected by the sensor can be increased to improve the detection accuracy of water quality indicators other than the first water quality indicator in the target water quality indicator group.

[0037] When treating textile wastewater, when the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, it means that the first water quality indicator condition has not reached the level of exceeding the standard. The number of sensors or the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group can be kept unchanged to realize the monitoring of wastewater quality.

[0038] Exemplarily, when increasing the number of sensors of water quality indicators other than the first water quality indicator in the target water quality indicator group, the number of sensors or the number of detections can be automatically increased by mechanical components, or the number of sensors or the number of detections can be increased manually. The embodiments of the present application do not limit the method of increasing sensors or the number of detections.

[0039] S130, obtaining water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determining a subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the detected target water quality indicator group.

[0040] After determining whether it is necessary to increase the number of sensors or the number of detections for water quality indicators other than the first water quality indicator in the target water quality indicator group, and after the adjustment of the number of sensors or the number of detections is completed, the water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group can be obtained, and based on each water quality indicator in the detected target water quality indicator group, the subsequent treatment strategy for textile wastewater treatment can be determined to achieve accuracy in the detection of prevention and control wastewater.

[0041] The beneficial effect brought about by the above-mentioned implementation method is that when the first water quality index reaches a level exceeding the standard, the number of sensors or the number of detection times used to detect water quality indexes other than the first water quality index in the target water quality index group can be increased, thereby improving the detection accuracy of water quality indexes other than the first water quality index in the target water quality index group, and avoiding false detection or missed detection of water quality indexes other than the first water quality index in the target water quality index group, thereby improving the detection accuracy of the target water quality index group and improving the water quality detection accuracy of textile wastewater.

[0042] In some implementations, the target water quality indicator group includes a pH value and a biological oxygen demand (BOD), and the first water quality indicator condition includes that the pH value is not within a preset pH value range or the biological oxygen demand (BOD) is greater than a preset biological oxygen demand (BOD).

[0043] In the treatment of textile wastewater, the target water quality index group may include pH value and biological oxygen demand (BOD). pH value has a great influence on the activity of microorganisms, and microbial activity is related to the reduction of biological oxygen demand (BOD). If the pH value is not within the appropriate range, the metabolic activity of the microorganism will be affected, thereby affecting the efficiency of reducing the biological oxygen demand (BOD). Therefore, the first water quality index condition may include that the pH value is not within the preset pH value range or the biological oxygen demand (BOD) is greater than the preset biological oxygen demand (BOD). Among them, the preset pH value range is the optimal pH value range suitable for the survival of microorganisms, and the preset biological oxygen demand (BOD) is the biological oxygen demand (BOD) corresponding to the better wastewater treatment effect.

[0044] For example, when detecting the biological oxygen demand (BOD), the biological oxygen demand (BOD) may be detected by a microbial electrode method, an activated sludge aeration degradation method, or a water quality analyzer or other sensing equipment.

[0045] In some implementations, the target water quality indicator group includes a total nitrogen value TN and a total phosphorus value TP, and the first water quality indicator condition includes that the total nitrogen value TN is less than a preset total nitrogen value TN or the total phosphorus value TP is less than a preset total phosphorus value TP.

[0046] In wastewater treatment, nitrogen and phosphorus are essential nutrients for microbial growth, and their relative proportions and absolute concentrations will affect the biological treatment process. In wastewater quality testing, total nitrogen value TN (Total Nitrogen) and total phosphorus value TP (Total Phosphorus) are nutrient indicators, and the concentrations of total nitrogen value TN and total phosphorus value TP in the water body can affect the eutrophication degree of the water body. Therefore, the target water quality indicator group may include total nitrogen value TN and total phosphorus value TP, and the first water quality indicator condition may include total nitrogen value TN greater than the preset total nitrogen value TN or total phosphorus value TP greater than the preset total phosphorus value TP. Among them, the preset total nitrogen value TN is the total nitrogen value TN that maintains a better microbial level during the microbial treatment process, and the preset total phosphorus value TP is the total phosphorus value TP that maintains a better microbial level during the microbial treatment process.

[0047] When detecting the total nitrogen value TN and the total phosphorus value TP, the detection can be carried out by chemical analysis method or online total nitrogen and total phosphorus analyzer, and the total nitrogen value TN and the total phosphorus value TP can be accurately detected by increasing the number of detection times of the total nitrogen value TN and the total phosphorus value TP.

[0048] In some implementations, the target water quality indicator group includes a temperature value and a dissolved oxygen amount DO, and the first water quality indicator condition includes that the temperature value is not within a preset temperature range or the dissolved oxygen amount DO is less than a preset dissolved oxygen amount DO.

[0049] In the treatment of textile wastewater, the temperature of textile wastewater may increase due to the printing and dyeing process. The increase in wastewater temperature will reduce the ability to dissolve oxygen, so the wastewater temperature can affect the dissolved oxygen level in the water. In wastewater treatment, the dissolved oxygen level is crucial to the activity of microorganisms in the biological treatment process. Therefore, the target water quality indicator group may include a temperature value and a dissolved oxygen amount DO (Dissolved Oxygen), and the first water quality indicator condition may include that the temperature value is not within a preset temperature range or that the dissolved oxygen amount DO is less than a preset dissolved oxygen amount DO. Among them, the preset temperature range is a temperature range for maintaining microbial activity, and the preset dissolved oxygen amount DO is a dissolved oxygen amount DO for maintaining microbial activity.

[0050] In some implementations, the target water quality indicator group includes a suspended solids amount SS and a chromaticity value, and the first water quality indicator condition includes that the suspended solids amount SS is greater than a preset suspended solids amount SS or the chromaticity value is greater than a preset chromaticity value.

[0051] Suspended solids SS refers to insoluble particulate matter in water. Chroma is caused by organic and inorganic pigments in water. Chroma can interact with suspended solids SS because pigment particles can also cause light scattering. Suspended solids SS can affect the accuracy of chromaticity detection of water quality. Therefore, the target water quality index group can include suspended solids SS and chromaticity values. The first water quality index condition can include that the suspended solids SS is greater than the preset suspended solids SS or the chromaticity value is greater than the preset chromaticity value. Among them, the preset suspended solids SS is the suspended solids SS that reduces the accuracy of chromaticity value detection, and the preset chromaticity value is the chromaticity value that reduces the accuracy of floating solids SS detection.

[0052] The beneficial effect brought about by the above implementation method is that by monitoring multiple groups of water qualities that have a correlated impact on the wastewater treatment effect, the accuracy of water quality monitoring can be guaranteed, and the stability of the wastewater treatment effect during the treatment process can also be guaranteed.

[0053] In some implementations, the above method further includes S210 to S230, and S210 to S230 are described in detail below.

[0054] S210, transporting the same batch of textile wastewater through multiple wastewater pipelines, and detecting each water quality index of multiple water quality index groups on each wastewater pipeline.

[0055] In wastewater treatment, in order to ensure the accuracy of water quality testing, the same batch of textile wastewater can be transported through multiple wastewater pipelines, and each water quality indicator of multiple water quality indicator groups can be tested on each wastewater pipeline, so as to accurately judge the water quality of the wastewater through the test results of each wastewater pipeline.

[0056] Figure 2A schematic diagram of the detection process of a method for sampling and detecting water quality of textile wastewater before discharge provided in an embodiment of the present application, such as Figure 2 As shown, the same batch of textile wastewater can be transported through wastewater pipeline 11, wastewater pipeline 12 and wastewater pipeline 13, and each water quality indicator of multiple water quality indicator groups can be detected on each wastewater pipeline.

[0057] S220: When the first water quality indicator in the target water quality indicator group in the first wastewater pipeline meets the first water quality indicator condition, increase the number of sensors or the number of detection times in the remaining pipelines for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group. When the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, keep the number of sensors and the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group unchanged.

[0058] When detecting wastewater in multiple wastewater pipelines, when the first water quality indicator in the target water quality indicator group in the first wastewater pipeline meets the first water quality indicator condition, the number of sensors or the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group in the remaining pipelines can be increased. When the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, the number of sensors and the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group can be kept unchanged.

[0059] like Figure 2 As shown, when the same batch of textile wastewater is transported through the wastewater pipeline 11, the wastewater pipeline 12 and the wastewater pipeline 13, since the wastewater pipeline 11, the wastewater pipeline 12 and the wastewater pipeline 13 are independent of each other, when the wastewater pipeline 11, the wastewater pipeline 12 and the wastewater pipeline 13 respectively detect the first water quality indicator in the target water quality indicator group, it can avoid the failure of the sensor for detecting the first water quality indicator in a certain pipeline, resulting in inaccurate detection results of the first water quality indicator in the target water quality indicator group, so as to improve the monitoring accuracy of the target water quality indicator group.

[0060] S230, obtaining water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group in all wastewater pipelines, and determining a subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the target water quality indicator group detected by all wastewater pipelines.

[0061] After obtaining the water quality detection results for detecting water quality indicators in the target water quality indicator group except the first water quality indicator in all wastewater pipelines, the subsequent treatment strategy for textile wastewater treatment can be determined based on each water quality indicator in the target water quality indicator group detected by all wastewater pipelines.

[0062] The beneficial effect of the above-mentioned implementation method is that it can avoid the failure of a sensor used to detect the first water quality indicator in a wastewater pipeline, resulting in inaccurate detection results of the first water quality indicator in the target water quality indicator group, thereby improving the accuracy of water quality monitoring of the target water quality indicator group.

[0063] The beneficial effect brought about by the above implementation method is that it can avoid inaccurate detection results of water quality indicators other than the first water quality indicator in the target water quality indicator group in a certain wastewater pipeline.

[0064] The beneficial effect brought about by the above-mentioned implementation method is that it can avoid the situation where the sensor in a wastewater pipeline is blocked by waste when detecting wastewater quality, causing the sensor used to detect the first water quality indicator to fail, resulting in inaccurate detection results for the first water quality indicator in the target water quality indicator group.

[0065] In some implementations, in the above S130, a subsequent treatment strategy for textile wastewater treatment is determined based on each water quality indicator in the detected target water quality indicator group, including S131 to S132, and S131 to S132 are specifically described below.

[0066] S131. Taking the average value or the maximum value of the detection values ​​of the second water quality indicator in the target water quality indicator group as the second water quality indicator in the target water quality indicator group.

[0067] During operation, the average value or maximum value of the detection value of the second water quality indicator in the target water quality indicator group can be used as the second water quality indicator in the target water quality indicator group, so as to judge the second water quality indicator by the average value or maximum value of the detection value of the second water quality indicator, thereby achieving accurate detection of the second water quality indicator.

[0068] S132. When the first water quality index in the target water quality index group meets the first water quality index condition and the second water quality index in the target water quality index group does not meet the discharge standard, control the textile wastewater to flow back and re-treat the wastewater. When the first water quality index in the target water quality index group meets the first water quality index condition and the water quality indexes other than the first water quality index in the target water quality index group meet the discharge standard, adjust the first water quality index to meet the discharge standard.

[0069] After obtaining all water quality indicators, when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition and the second water quality indicator in the target water quality indicator group does not meet the discharge standard, it means that the first water quality indicator treatment does not meet the standard, and the second water quality indicator detected after adding the sensor of the second water quality indicator does not meet the discharge standard. The textile wastewater can be controlled to flow back and the wastewater can be re-treated to ensure that all water quality indicators in the target water quality indicator group meet the standard and meet the water quality treatment requirements.

[0070] Exemplarily, when controlling the backflow of textile wastewater and re-treating the wastewater, the process of treating the target water quality index group in the wastewater treatment process can be controlled to treat the water quality indicators in the target water quality index group in a targeted manner, thereby improving the wastewater treatment effect.

[0071] After obtaining all water quality indicators, when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, and the water quality indicators other than the first water quality indicator in the target water quality indicator group meet the emission standards, it means that the first water quality indicator processing does not meet the standards, and the second water quality indicator detected after adding a sensor for the second water quality indicator meets the emission standards. At this time, only the first water quality indicator can be adjusted to meet the emission standards to ensure that all water quality indicators in the target water quality indicator group meet the standards and to ensure that all water quality indicators in the target water quality indicator group meet the water quality treatment requirements.

[0072] The beneficial effect brought about by the above implementation method is that the second water quality index is judged by the average value or the maximum value of the detection value of the second water quality index, thereby achieving accurate detection of the second water quality index.

[0073] The beneficial effect brought about by the above-mentioned implementation method is that when the first water quality index is not up to standard, and the second water quality index detected after adding the sensor of the second water quality index does not meet the discharge standard, the textile wastewater can be controlled to flow back and the wastewater can be re-treated to ensure that all water quality indicators in the target water quality index group meet the standard and all water quality indicators in the target water quality index group meet the water quality treatment requirements.

[0074] The beneficial effect brought about by the above-mentioned implementation method is that when the first water quality index is not up to standard, and the second water quality index detected after adding a sensor for the second water quality index meets the emission standard, at this time, only the first water quality index can be adjusted to meet the emission standard, which can save the water quality treatment process and improve the water quality treatment efficiency.

[0075] In some implementations, in the above S230, a subsequent treatment strategy for textile wastewater treatment is determined based on each water quality indicator in the target water quality indicator group detected by all wastewater pipelines, including S231 to S232, and S231 to S232 are specifically described below.

[0076] S231. The average value or the maximum value of the detection values ​​of the second water quality index in the target water quality index group in all wastewater pipelines is used as the second water quality index in the target water quality index group.

[0077] When testing water quality indicators through multiple wastewater pipelines, the average value or maximum value of the detection values ​​of the second water quality indicator in the target water quality indicator group in all wastewater pipelines can be used as the second water quality indicator in the target water quality indicator group to scientifically determine whether the water quality indicators in multiple wastewater pipelines meet the discharge requirements.

[0078] S232. When the first water quality index in the target water quality index group of at least one wastewater pipeline meets the first water quality index condition, and the second water quality index in the target water quality index group of at least one wastewater pipeline does not meet the discharge standard, control the textile wastewater to flow back and re-treat the wastewater. When the first water quality index in the target water quality index group of at least one wastewater pipeline meets the first water quality index condition, and the water quality indexes in the target water quality index group of all wastewater pipelines except the first water quality index meet the discharge standard, adjust the first water quality index to meet the discharge standard.

[0079] During operation, when the first water quality index in the target water quality index group of at least one wastewater pipeline meets the first water quality index condition, and the second water quality index in the target water quality index group of at least one wastewater pipeline does not meet the discharge standard, it means that the first water quality index in the target water quality index group of at least one wastewater pipeline does not meet the standard, and the second water quality index detected in at least one wastewater pipeline does not meet the discharge standard. It can be determined that the water quality of the current batch of wastewater is unqualified, and the textile wastewater can be controlled to flow back and the wastewater can be re-treated to ensure the wastewater treatment effect.

[0080] During operation, when the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the water quality indicators other than the first water quality indicator in the target water quality indicator group of all wastewater pipelines meet the emission standards, it means that the first water quality indicator in the current batch of wastewater does not meet the emission standards, and the water quality indicators other than the first water quality indicator in the target water quality indicator group meet the emission standards. Only the first water quality indicator can be adjusted to meet the emission standards to improve the wastewater treatment efficiency.

[0081] The beneficial effect brought about by the above-mentioned implementation method is that, while avoiding inaccurate detection results of water quality indicators of the target water quality indicator group in a certain wastewater pipeline, the water quality detection results of the wastewater can be ensured to be accurate through multiple wastewater pipelines, thereby improving the detection results of the wastewater quality.

[0082] The beneficial effect brought about by the above-mentioned implementation method is that, while avoiding inaccurate detection results of water quality indicators of the target water quality indicator group in a certain wastewater pipeline, when the first water quality indicator in the current batch of wastewater does not meet the discharge standard, when the water quality indicators other than the first water quality indicator in the target water quality indicator group meet the discharge standard, only the first water quality indicator can be adjusted to meet the discharge standard to improve the wastewater treatment efficiency.

[0083] When testing water quality, the sensor's test data or water quality test results may fluctuate. Therefore, when the sensor's test data or water quality test results fluctuate greatly, it means that the sensor or testing equipment may have failed, or the wastewater quality is unstable. At this time, it means that the wastewater quality needs to be monitored more accurately.

[0084] In some implementations, the target water quality indicator group includes a pH value and a biological oxygen demand (BOD), and the first water quality indicator condition includes that a fluctuation range of the pH value or the biological oxygen demand (BOD) is greater than a first fluctuation range.

[0085] During operation, the target water quality indicator group may include pH value and biological oxygen demand BOD. The first water quality indicator condition may include that the fluctuation amplitude of the pH value or the biological oxygen demand BOD is greater than the preset fluctuation amplitude, so as to increase the number of sensors or the number of detections when the fluctuation amplitude of the pH value or the biological oxygen demand BOD is large, so as to accurately monitor the wastewater quality and improve the monitoring effect of the wastewater quality.

[0086] In some implementations, the target water quality indicator group includes a total nitrogen value TN and a total phosphorus value TP, and the first water quality indicator condition includes that a fluctuation range of the total nitrogen value TN or the total phosphorus value TP is greater than a preset second fluctuation range.

[0087] During operation, the target water quality index group may include a total nitrogen value TN and a total phosphorus value TP. The first water quality index condition may include that the fluctuation amplitude of the total nitrogen value TN or the total phosphorus value TP is greater than a preset second fluctuation amplitude. Then, when the fluctuation amplitude of the total nitrogen value TN or the total phosphorus value TP is large, the number of sensors is increased or the number of detections is increased to accurately monitor the wastewater quality and improve the monitoring effect of the wastewater quality.

[0088] In some implementations, the target water quality indicator group includes a temperature value and a dissolved oxygen amount DO, and the first water quality indicator condition includes that the dissolved oxygen amount DO or a fluctuation range of a preset dissolved oxygen amount DO is greater than a preset third fluctuation range.

[0089] During operation, the target water quality indicator group may include temperature value and dissolved oxygen DO. The first water quality indicator condition may include that the fluctuation amplitude of the dissolved oxygen DO or the preset dissolved oxygen DO is greater than the preset third fluctuation amplitude. Then, when the fluctuation amplitude of the dissolved oxygen DO or the preset dissolved oxygen DO is large, the number of sensors is increased or the number of detections is increased to accurately monitor the wastewater quality and improve the monitoring effect of the wastewater quality.

[0090] In some implementations, the target water quality indicator group includes a suspended matter amount SS and a chromaticity value, and the first water quality indicator condition includes that a fluctuation range of the suspended matter amount SS or the chromaticity value is greater than a preset fourth fluctuation range.

[0091] During operation, the target water quality indicator group may include the suspended matter amount SS and the chromaticity value. The first water quality indicator condition may include that the fluctuation amplitude of the suspended matter amount SS or the chromaticity value is greater than the preset fourth fluctuation amplitude, so as to increase the number of sensors or the number of detections when the fluctuation amplitude of the suspended matter amount SS or the chromaticity value is large, so as to accurately monitor the wastewater quality and improve the monitoring effect of the wastewater quality.

[0092] Exemplarily, the first fluctuation amplitude, the second fluctuation amplitude, the third fluctuation amplitude and the fourth fluctuation amplitude may be 10% to 20% respectively.

[0093] The beneficial effect brought about by the above implementation method is that when the wastewater quality detection data or water quality test results fluctuate greatly, the number of detections or tests can be increased to improve the stability of the water quality test results.

[0094] In some implementations, in the above-mentioned S120, when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, the number of sensors used to detect water quality indicators other than the first water quality indicator in the target water quality indicator group is increased, including: when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, determining a first position of the sensor for detecting the first water quality indicator, and determining a second position of the sensor for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and adding a sensor for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group on the side of the first position away from the second position.

[0095] During testing, if Figure 2As shown, when the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, the first position 111 of the sensor for detecting the first water quality indicator can be determined, and the second position 112 of the sensor for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group can be determined, and a sensor for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group is added on the side of the first position 111 away from the second position 112, and the added sensor can be located at the third position 113, so that the sensors for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group are respectively located on both sides of the first position 111, which increases the distance between the sensors for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, avoids the sensors for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group from influencing each other, and can improve the accuracy of the water quality detection results.

[0096] The beneficial effect brought about by the above implementation method is that the distance of the sensor used to detect the water quality indicators other than the first water quality indicator in the target water quality indicator group is increased, and the accuracy of the water quality detection result is improved.

[0097] In some implementations, the above method also includes: when the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the second water quality indicator in the target water quality indicator group of at least one wastewater pipeline does not meet the discharge standard, and the duration is greater than the first time period, controlling the textile wastewater to return and re-treating the wastewater.

[0098] During the detection, the wastewater quality detection results may fluctuate instantaneously, so the duration after the first water quality index and the second water quality index in the target water quality index group reach a certain index range can be obtained, thereby improving the detection accuracy of the wastewater quality. For example, when the first water quality index in the target water quality index group of at least one wastewater pipeline meets the first water quality index condition, and the second water quality index in the target water quality index group of at least one wastewater pipeline does not meet the discharge standard, and the duration is greater than the first time period, the textile wastewater can be controlled to flow back and the wastewater can be re-treated.

[0099] Exemplarily, the first time period may be 2 minutes, 5 minutes or 10 minutes.

[0100] The beneficial effect brought about by the above-mentioned implementation method is that when the wastewater quality meets the conditions for controlling the backflow of textile wastewater and re-treating the wastewater and the duration is greater than the first time period, the backflow of textile wastewater can be controlled and the wastewater treatment can be re-performed, which can improve the accuracy of the wastewater quality control process.

[0101] In some implementations, the method further includes: when a first water quality indicator in a target water quality indicator group for at least one wastewater pipeline meets a first water quality indicator condition, and a second water quality indicator in a target water quality indicator group for at least one wastewater pipeline does not meet the discharge standard, and the duration is less than or equal to a first time period, adjusting the first water quality indicator and the second water quality indicator to meet the discharge standard.

[0102] During detection, when the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the second water quality indicator in the target water quality indicator group of at least one wastewater pipeline does not meet the emission standard, and the duration is less than or equal to the first time period, it means that the state in which the wastewater quality does not meet the emission standard is an instantaneous fluctuation of the wastewater quality. The first water quality indicator and the second water quality indicator can be adjusted to meet the emission standard to improve the accuracy of the wastewater quality adjustment.

[0103] The beneficial effect brought about by the above-mentioned implementation method is that when the instantaneous fluctuation of wastewater quality causes the wastewater quality to fail to meet the discharge standard, the first water quality index and the second water quality index can be adjusted to meet the discharge standard to improve the accuracy of wastewater quality adjustment.

[0104] The embodiment of the present application also provides a water quality sampling and detection device before the discharge of textile wastewater, which uses the above-mentioned water quality sampling and detection before the discharge of textile wastewater to detect textile wastewater, including multiple water quality sensors and a control component, and the multiple water quality sensors are used to detect each water quality indicator of multiple water quality indicator groups in textile wastewater treatment. The multiple water quality sensors are electrically connected to the control component, and the control component is used to obtain water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determine the subsequent treatment strategy for textile wastewater treatment according to each water quality indicator in the detected target water quality indicator group.

[0105] Figure 3 A schematic diagram of a water quality sampling and detection device for textile wastewater before discharge provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the water quality sampling and detection device before the discharge of textile wastewater includes a control component 2 and a plurality of water quality sensors such as a first water quality sensor 21, a second water quality sensor 22 and a third water quality sensor 23, wherein the plurality of water quality sensors are electrically connected to the control component 2, and the control component 2 is used to obtain water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determine the subsequent treatment strategy for textile wastewater treatment according to each water quality indicator in the detected target water quality indicator group. The beneficial effects brought about by the embodiment of the present application have been described in the above method and will not be repeated here.

[0106] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for sampling and testing water quality of textile wastewater before discharge, characterized in that: The method comprises: Obtaining each water quality index of a plurality of water quality index groups detected in textile wastewater treatment; wherein each water quality index group includes a plurality of water quality indexes that have a correlated impact on the wastewater treatment effect; When the first water quality index in the target water quality index group meets the first water quality index condition, the number of sensors or the number of detection times used to detect water quality indexes other than the first water quality index in the target water quality index group is increased; when the first water quality index in the target water quality index group does not meet the first water quality index condition, the number of sensors and the number of detection times used to detect water quality indexes other than the first water quality index in the target water quality index group remain unchanged; The water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group are obtained, and a subsequent treatment strategy for textile wastewater treatment is determined based on each water quality indicator in the detected target water quality indicator group.

2. The method according to claim 1, characterized in that The target water quality index group includes pH value and biological oxygen demand BOD, and the first water quality index condition includes that the pH value is not within a preset pH value range or the biological oxygen demand BOD is greater than a preset biological oxygen demand BOD; or, The target water quality index group includes a total nitrogen value TN and a total phosphorus value TP, and the first water quality index condition includes that the total nitrogen value TN is less than a preset total nitrogen value TN or the total phosphorus value TP is less than a preset total phosphorus value TP; or, The target water quality index group includes a temperature value and a dissolved oxygen amount DO, and the first water quality index condition includes that the temperature value is not within a preset temperature range or the dissolved oxygen amount DO is less than a preset dissolved oxygen amount DO; or, The target water quality index group includes a suspended solids amount SS and a chromaticity value, and the first water quality index condition includes that the suspended solids amount SS is greater than a preset suspended solids amount SS or the chromaticity value is greater than a preset chromaticity value.

3. The method according to claim 2, characterized in that The method further comprises: The same batch of textile wastewater is transported through multiple wastewater pipelines, and each water quality index of multiple water quality index groups is tested on each wastewater pipeline; When the first water quality indicator in the target water quality indicator group in the first wastewater pipeline meets the first water quality indicator condition, the number of sensors or the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group in the remaining pipelines are increased; when the first water quality indicator in the target water quality indicator group does not meet the first water quality indicator condition, the number of sensors and the number of detection times for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group remain unchanged; Obtain the water quality test results of all wastewater pipelines for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determine the subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the target water quality indicator group detected by all wastewater pipelines.

4. The method according to claim 3, characterized in that According to each water quality indicator in the detected target water quality indicator group, the subsequent treatment strategy for textile wastewater treatment is determined, including: Taking the average value or the maximum value of the detection values ​​of the second water quality index in the target water quality index group as the second water quality index in the target water quality index group; When the first water quality index in the target water quality index group meets the first water quality index condition and the second water quality index in the target water quality index group does not meet the discharge standard, the textile wastewater is controlled to flow back and the wastewater is treated again; when the first water quality index in the target water quality index group meets the first water quality index condition and the water quality indexes other than the first water quality index in the target water quality index group meet the discharge standard, the first water quality index is adjusted to meet the discharge standard.

5. The method according to claim 4, characterized in that According to each water quality indicator in the target water quality indicator group detected by all wastewater pipelines, the subsequent treatment strategy for textile wastewater treatment is determined, including: The average value or the maximum value of the detection values ​​of the second water quality index in the target water quality index group in all wastewater pipelines is used as the second water quality index in the target water quality index group; When the first water quality index in the target water quality index group of at least one wastewater pipeline meets the first water quality index condition, and the second water quality index in the target water quality index group of at least one wastewater pipeline does not meet the discharge standard, the textile wastewater is controlled to flow back and the wastewater is treated again; when the first water quality index in the target water quality index group of at least one wastewater pipeline meets the first water quality index condition, and the water quality indexes in the target water quality index group of all wastewater pipelines except the first water quality index meet the discharge standard, the first water quality index is adjusted to meet the discharge standard.

6. The method according to claim 5, characterized in that The target water quality index group includes a pH value and a biological oxygen demand (BOD), and the first water quality index condition includes that a fluctuation range of the pH value or the biological oxygen demand (BOD) is greater than a first fluctuation range; or, The target water quality index group includes a total nitrogen value (TN) and a total phosphorus value (TP), and the first water quality index condition includes that the fluctuation range of the total nitrogen value (TN) or the total phosphorus value (TP) is greater than a preset second fluctuation range; or, The target water quality index group includes a temperature value and a dissolved oxygen (DO), and the first water quality index condition includes the dissolved oxygen (DO) or a fluctuation range of a preset dissolved oxygen (DO) greater than a preset third fluctuation range; or, The target water quality index group includes a suspended solids amount (SS) and a chromaticity value, and the first water quality index condition includes that a fluctuation range of the suspended solids amount (SS) or the chromaticity value is greater than a preset fourth fluctuation range.

7. The method according to claim 6, characterized in that When the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, increasing the number of sensors for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group includes: When the first water quality indicator in the target water quality indicator group meets the first water quality indicator condition, the first position of the sensor for detecting the first water quality indicator is determined, and the second position of the sensor for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group is determined, and a sensor for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group is added on the side of the first position away from the second position.

8. The method according to claim 7, characterized in that The method further comprises: When the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the second water quality indicator in the target water quality indicator group of at least one wastewater pipeline does not meet the discharge standard, and the duration is greater than the first time period, the textile wastewater is controlled to flow back and the wastewater is re-treated.

9. The method according to claim 8, characterized in that The method further comprises: When the first water quality indicator in the target water quality indicator group of at least one wastewater pipeline meets the first water quality indicator condition, and the second water quality indicator in the target water quality indicator group of at least one wastewater pipeline does not meet the discharge standard, and the duration is less than or equal to the first time period, adjust the first water quality indicator and the second water quality indicator to meet the discharge standard.

10. A water quality sampling and detection device for textile wastewater before discharge, characterized in that: The textile wastewater is tested by using the water quality sampling and testing method for textile wastewater before discharge according to any one of claims 1 to 9, comprising a plurality of water quality sensors and a control component, wherein the plurality of water quality sensors are used to detect each water quality index of a plurality of water quality index groups in the textile wastewater treatment; Multiple water quality sensors are electrically connected to a control component, and the control component is used to obtain water quality detection results for detecting water quality indicators other than the first water quality indicator in the target water quality indicator group, and determine a subsequent treatment strategy for textile wastewater treatment based on each water quality indicator in the detected target water quality indicator group.

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