A smart continuous pretreatment process for herbicide pesticide wastewater

Abstract

This invention discloses an intelligent continuous pretreatment process for herbicide wastewater, belonging to the field of pesticide wastewater pretreatment technology, aiming to solve the problem of poor removal of pesticide residues in wastewater. This invention significantly improves the specificity of degradation by precisely selecting processes such as Fenton oxidation and photocatalysis for different pollutants such as chlorinated organics and triazines. The pollutant removal rate is significantly improved, and each stage is seamlessly connected, forming a closed loop of "pretreatment-deep purification." Compared with single processes, this method improves the adaptability to complex pesticide wastewater by 40%, and achieves better effluent turbidity and pollutant residue indicators. Precise dosing and efficient equipment operation, combined with sludge combined treatment and gravity flow sludge discharge, significantly save energy consumption and operation and maintenance costs. A multi-level monitoring and dynamic parameter adjustment mechanism can promptly correct reaction conditions, reducing blind pesticide dosing, ensuring treatment effectiveness while reducing material waste, and reducing pesticide consumption by more than 30% compared to traditional processes.

Description

Technical Field

[0001] This invention relates to the field of pesticide wastewater pretreatment technology, specifically to an intelligent continuous pretreatment process for herbicide-type pesticide wastewater. Background Technology

[0002] Existing herbicide-based pesticide wastewater has a complex composition, containing various recalcitrant pollutants such as chlorinated organic compounds, triazines, and amides. These pollutants are highly toxic and stable, and traditional pretreatment processes have significant limitations. First, data collection and adjustment are often lagging, relying heavily on sampling from a single discharge point, which fails to reflect the differences in wastewater characteristics across different production stages. Adjustments are not timely when flow and water quality fluctuate, easily leading to load imbalances in subsequent treatment systems. Second, treatment lacks specificity; filtration is often a single-stage process, resulting in incomplete impurity removal, ambiguous identification of pollutants, and a lack of targeted degradation processes, leading to low decomposition efficiency for specific pollutants and high residual toxicity. Third, process coordination is poor; parameters in detoxification, flocculation, and adsorption stages are fixed, making it difficult to adapt to changes in water quality. Monitoring feedback is also delayed, often resulting in substandard treatment and significant pesticide waste, failing to meet the demands for continuous and efficient pretreatment. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent continuous pretreatment process for herbicide-based pesticide wastewater. This process precisely selects Fenton oxidation and photocatalysis technologies for different pollutants such as chlorinated organics and triazines, significantly improving degradation targeting and pollutant removal rates. Seamless integration of each stage forms a closed loop of "pretreatment-deep purification," increasing adaptability to complex pesticide wastewater by 40% compared to single processes. It also yields better results in effluent turbidity and pollutant residue levels. Precise dosing and efficient equipment operation, combined with sludge consolidation and gravity-flow sludge discharge, significantly save energy and maintenance costs. A multi-level monitoring and dynamic parameter adjustment mechanism can promptly correct reaction conditions, reducing blind pesticide dosing, ensuring treatment effectiveness while minimizing material waste. Compared to traditional processes, pesticide consumption is reduced by more than 30%, thus solving problems in existing technologies.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A smart, continuous pretreatment process for herbicide-type pesticide wastewater includes:

[0006] First, wastewater is collected in real time, and the collected wastewater is intelligently regulated and transported. The transported wastewater undergoes preliminary filtration, and the pollutant components of the filtered wastewater are identified. Based on the identified pollutants, organic matter is degraded. The wastewater after organic matter degradation undergoes deep detoxification. The wastewater after deep detoxification undergoes flocculation and sedimentation treatment. The wastewater after flocculation and sedimentation treatment undergoes inclined tube sedimentation. The wastewater after inclined tube sedimentation undergoes intelligent adsorption and membrane filtration. The pH value of the wastewater after intelligent adsorption and membrane filtration is intelligently adjusted. Finally, the wastewater with intelligently adjusted pH value is intelligently monitored and feedback is provided.

[0007] Preferably, wastewater is collected in real time, and the collected wastewater is intelligently regulated and transported, including:

[0008] Before real-time collection of wastewater, collection points are set up at the discharge nodes. These collection points include the reactor drain outlet in the production workshop, the raw material washing wastewater discharge outlet, the storage tank flushing wastewater outlet, and the workshop's total drainage collection outlet.

[0009] Automatic samplers are installed at each collection point. The automatic samplers collect wastewater and monitor key parameters of the collected water samples in real time using monitoring sensors, including pH sensors, turbidity meters, total organic carbon detectors, and temperature sensors.

[0010] The collected wastewater is transported to the equalization tank through a pipeline. An electromagnetic flow meter is installed on the pipeline to monitor the wastewater flow in real time and adjust the opening of the inlet valve according to the monitoring results.

[0011] Ultimately, the wastewater is transported and regulated.

[0012] Preferably, the transported wastewater undergoes preliminary filtration, and the filtered wastewater is then subjected to pollutant component identification, including:

[0013] The initial filtration uses a combination of bar screen and filter. The bar screen is an automatic rotating stainless steel bar screen with a bar spacing of 1 mm, which is installed at the connection between the outlet of the equalization tank and the delivery pipeline. The filter has a built-in polypropylene pleated filter membrane, which is connected in series on the delivery pipeline downstream of the bar screen.

[0014] After the wastewater is transported to the equalization tank through the conveying pipeline, it first enters the automatic rotating stainless steel bar. The bar motor runs continuously at a speed of 5r / min. The impurities intercepted by the bar surface are removed by the scraper plate and sent to the collection tank as the bar rotates.

[0015] Wastewater passing through the screen flows into the filter, and the filter inlet pressure is maintained at 0.2-0.3MPa. The pressure difference between the inlet and outlet is monitored in real time by a differential pressure transmitter. When the difference exceeds 0.1MPa, the automatic backwashing program is triggered.

[0016] After the automatic backwashing program is triggered, the inlet valve is closed and the backwashing pump is turned on. The filter membrane is backwashed with treated clean water. Normal filtration is restored after the backwashing is completed.

[0017] The filtered wastewater first flows into a buffer tank, where it undergoes multi-dimensional detection. This multi-dimensional detection involves scanning the water sample using a portable gas chromatography-mass spectrometry (GC-MS) instrument and comparing it with a built-in herbicide database to determine the main pesticide components in the wastewater. The herbicide database is retrieved from a database, and high-performance liquid chromatography (HPLC) is used for auxiliary screening.

[0018] The detected pollutants were quantitatively analyzed using the standard curve method, and the types and concentrations of pollutants in the wastewater were obtained after the quantitative analysis.

[0019] Preferably, the degradation of organic matter based on the identified pollutants includes:

[0020] Based on the type and concentration of pollutants in the wastewater, a preset degradation scheme library is automatically matched, which is retrieved from the database.

[0021] Pollutants are targeted for degradation according to a matched degradation scheme, which includes oxidative degradation, photocatalytic degradation and bio-enhanced degradation.

[0022] Among them, oxidative degradation is used to degrade chlorinated organic pollutants in wastewater using the Fenton oxidation method; photocatalytic degradation is used to degrade triazine pollutants in wastewater using an ultraviolet photocatalytic reactor; and bio-enhanced degradation is used to degrade amide pesticides in wastewater using a biological fluidized bed process.

[0023] The system automatically collects key parameters during the targeted degradation process.

[0024] The key parameters include pollutant concentration, wastewater flow rate and treatment volume; pH value, reagent concentration ratio, reaction time, stirring speed and reaction temperature in oxidative degradation; ultraviolet light parameters, catalyst parameters, pH value and reaction temperature in photocatalytic degradation; and microbial environmental parameters, biomass parameters, nutrient ratio, hydraulic retention time and redox potential in bioenhanced degradation.

[0025] The collected key parameters are compared with preset parameter thresholds, and the degradation parameters are adjusted according to the comparison results.

[0026] Ultimately, the degradation of organic matter in the wastewater is completed.

[0027] Preferably, the wastewater after organic matter degradation undergoes deep detoxification, including:

[0028] After the organic matter in the wastewater is degraded, it is transported to a buffer homogenizing tank through a conveying pipeline. The buffer homogenizing tank confirms the detoxification method based on the key parameters in the wastewater.

[0029] Detoxification methods include ozone oxidation detoxification, electrochemical oxidation detoxification, and activated carbon adsorption detoxification;

[0030] Among them, ozone oxidation detoxification involves sending wastewater into an ozone contact tower via a booster pump, and the ozone generator's gas production is dynamically adjusted according to the wastewater flow rate. Furthermore, during the reaction process, an online ozone concentration monitor tracks the ozone content in the exhaust gas in real time. Electrochemical oxidation detoxification uses a three-dimensional electrode electrochemical reactor for detoxification treatment. Activated carbon adsorption detoxification involves the oxidized wastewater entering a fixed-bed activated carbon adsorption column, which is filled with granular activated carbon for detoxification treatment of the wastewater.

[0031] During wastewater detoxification treatment, key parameters of the detoxification process are automatically collected;

[0032] Key parameters include oxygen dosage, electrochemical cell voltage, and activated carbon column inlet and outlet pressure. The collected key parameters are compared with preset parameter thresholds, and the detoxification parameters are adjusted according to the comparison results.

[0033] The wastewater detoxification treatment was finally completed.

[0034] Preferably, the wastewater after deep detoxification is subjected to flocculation and sedimentation treatment, including:

[0035] The detoxified wastewater is transported to the flocculation reaction tank through a conveying pipe. The monitoring instrument in the flocculation reaction tank monitors the key parameters of the wastewater, including turbidity, pH value and suspended solids concentration.

[0036] The pH of the wastewater in the flocculation reaction tank is adjusted based on the key parameters obtained by the monitoring instrument. The pH adjustment is determined by whether to activate the acid-base adjustment device based on the monitored pH value.

[0037] After pH adjustment, the wastewater in the flocculation reaction tank is stirred. After stirring, inorganic flocculant and organic coagulant aid are added. Polyaluminum chloride is selected as the inorganic flocculant, and the basic dosage is 50-100 mg / L. Polyacrylamide is selected as the organic coagulant aid, and the dosage is 1 / 50-1 / 100 of PAC.

[0038] Wastewater containing inorganic flocculants and organic coagulants flows into a sedimentation tank, where a flow straightener is installed at the front end.

[0039] While the wastewater is settling in the sedimentation tank, the clarity of the wastewater is monitored in real time by turbidity sensors installed at different depths in the wastewater.

[0040] Meanwhile, a conical sludge hopper is installed at the bottom of the sedimentation tank. The sludge thickness is monitored in real time by a sludge concentration meter. When the sludge layer thickness reaches 0.8m, the sludge discharge valve is automatically opened to discharge the sludge.

[0041] The wastewater after the sludge removal operation is treated as wastewater after flocculation and sedimentation.

[0042] Preferably, the wastewater after flocculation and sedimentation treatment is subjected to inclined tube sedimentation, including:

[0043] Wastewater treated by flocculation and sedimentation in the sedimentation tank is transported to the inclined tube sedimentation tank through a conveying pipe;

[0044] After the wastewater enters the inclined tube sedimentation tank, the operating status of each sensor is monitored in real time by sensors installed at different locations in the inclined tube sedimentation tank.

[0045] The sensors include a pressure sensor installed at the end of the water distribution area; a turbidity probe installed in the middle of the inclined tube; and a level gauge installed in the clear water area.

[0046] The wastewater in the inclined tube sedimentation tank is regulated based on the operating status of the sensors;

[0047] After adjustment, the sludge that slides down the inclined tube is collected in the conical sludge collection hopper at the bottom of the inclined tube sedimentation tank. A sludge concentration sensor is installed at the bottom of the sludge collection hopper.

[0048] When the sludge moisture content drops below 95%, the pneumatic sludge discharge valve is opened, and the sludge is discharged in an intermittent manner. The sludge is discharged into the sludge thickening tank by gravity flow and is combined with the sludge treated by flocculation and sedimentation.

[0049] The wastewater after sludge removal treatment will ultimately be used as the wastewater after inclined tube sedimentation.

[0050] Preferably, the wastewater after inclined tube sedimentation is subjected to intelligent adsorption and membrane filtration, including:

[0051] The wastewater after inclined tube sedimentation is transported to the intelligent adsorption tower through a conveying pipe. The intelligent adsorption tower adopts a bottom-in, top-out flow pattern. In addition, an online ultraviolet spectrophotometer is installed in the intelligent adsorption tower to monitor the pollutant concentration at the adsorption tower outlet in real time.

[0052] After passing through the intelligent adsorption tower, the wastewater enters the membrane filtration pretreatment tank. At the same time, the membrane type is selected according to the water quality characteristics of the wastewater, including the molecular weight and colloidal content of pollutants. The membrane type includes ultrafiltration membrane, nanofiltration membrane, or a combination of ultrafiltration membrane and nanofiltration membrane.

[0053] Wastewater undergoes membrane filtration after passing through an ultrafiltration membrane, nanofiltration membrane, or a combination of ultrafiltration and nanofiltration membranes in a membrane filtration pretreatment tank.

[0054] The wastewater after membrane filtration enters the filter tank, which is equipped with a multi-parameter monitoring instrument, including pH detection, turbidity detection and chemical oxygen demand detection.

[0055] The quality of the wastewater in the filtration tank is determined based on the monitoring results of the multi-parameter monitor.

[0056] If the wastewater fails to meet the standards, the reflux valve will automatically open, and the wastewater will be transported to the front end of the intelligent adsorption tower for reprocessing.

[0057] Preferably, the pH of the wastewater after intelligent adsorption and membrane filtration is intelligently adjusted, including:

[0058] Wastewater that meets the monitoring standards in the filtration tank is transported to the pH intelligent adjustment tank through a conveying pipeline;

[0059] The pH intelligent adjustment tank is equipped with an acid and alkali reagent storage tank. The acid is a 30% sulfuric acid solution and the alkali is a 20% sodium hydroxide solution. A liquid level sensor is installed in the tank, and a replenishment alarm is triggered when the liquid level is lower than 20%.

[0060] An online pH sensor is installed inside the pH intelligent adjustment tank. The pH sensor collects the pH data of the wastewater every 10 seconds.

[0061] The dosage of acid and alkali reagents is determined based on the collected pH data. Furthermore, during the addition of acid and alkali reagents, the stirrer in the pH intelligent adjustment tank performs stirring operations.

[0062] Ultimately, the pH value of the wastewater is intelligently adjusted.

[0063] Preferably, the final step involves intelligent monitoring and feedback of the wastewater after intelligent pH adjustment, including:

[0064] After pH value is intelligently adjusted, the wastewater flows into the steady flow zone in the pH intelligent adjustment tank, which is located at the end of the pH intelligent adjustment tank.

[0065] A backup pH sensor is installed in the steady flow zone for secondary monitoring of the wastewater;

[0066] If the pH value remains stable between 6.8 and 7.2 for two consecutive minutes, and the difference between two monitoring data is ≤0.1 pH unit, the adjustment is considered qualified.

[0067] If the pH value monitored in the second monitoring deviates from the target range, the return pump at the bottom of the steady flow zone will start automatically, sending 30% of the wastewater back to the front end of the pH intelligent adjustment tank for readjustment, while automatically correcting the dosage of acid and alkali reagents.

[0068] Wastewater that has been deemed to be properly regulated is transported to a qualified flow tank, and sensors in the qualified flow tank monitor key parameters of the properly regulated wastewater.

[0069] Key parameters include basic water quality parameters, pollutant residue parameters, specific pesticide component parameters, and safety indicator parameters.

[0070] At the same time, the monitored data is transmitted to the display terminal in real time for parameter display.

[0071] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0072] 1. This invention provides an intelligent continuous pretreatment process for herbicide-based pesticide wastewater. It collects wastewater data in real time and dynamically adjusts the delivery, enabling rapid adaptation to water quality fluctuations and avoiding the treatment imbalances caused by fixed parameters in traditional processes. Pollutant component identification, combined with a dedicated degradation scheme library, precisely selects Fenton oxidation, photocatalysis, and other processes for different pollutants such as chlorinated organics and triazines, significantly improving degradation targeting and pollutant removal rates. Simultaneously, a multi-level monitoring and dynamic parameter adjustment mechanism can promptly correct reaction conditions, reducing indiscriminate pesticide application, ensuring treatment effectiveness while reducing material waste, resulting in a pesticide consumption reduction of over 30% compared to traditional processes.

[0073] 2. This invention provides an intelligent continuous pretreatment process for herbicide-type pesticide wastewater. The deep detoxification stage utilizes a combination of ozone oxidation and electrochemical oxidation to specifically address pesticide residue toxicity. Flocculation and inclined tube sedimentation work synergistically, employing rectifier plates and turbidity monitoring to optimize solid-liquid separation, efficiently removing colloids and suspended solids and reducing the load on subsequent treatment processes. Intelligent adsorption and membrane filtration provide step-by-step purification, combined with a non-compliant water recirculation mechanism, ensuring stable compliance of effluent indicators. Seamless integration of each stage forms a closed loop of "pretreatment-deep purification," improving adaptability to complex pesticide wastewater by 40% compared to single processes, and resulting in superior effluent turbidity and pollutant residue levels.

[0074] 3. This invention provides an intelligent continuous pretreatment process for herbicide-based pesticide wastewater. The entire process is intelligently operated, reducing manual intervention and lowering labor costs by over 30%. Precise pesticide dosing and efficient equipment operation, combined with sludge consolidation and gravity-flow sludge discharge, significantly save energy and maintenance costs. Real-time monitoring and a dual-verification mechanism, along with the recirculation treatment of substandard water, effectively avoid the risk of non-compliant wastewater discharge. Furthermore, the equipment utilizes corrosion-resistant materials and features automated backwashing, extending equipment lifespan, reducing downtime, and ensuring long-term stable operation. Attached Figure Description

[0075] Figure 1 This is a schematic diagram of the intelligent continuous pretreatment steps for pesticide wastewater according to the present invention;

[0076] Figure 2 This is a schematic diagram of the intelligent continuous pretreatment process for pesticide wastewater according to the present invention. Detailed Implementation

[0077] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0078] To address the problems in existing technologies, such as incomplete wastewater collection, delayed regulation, incomplete impurity filtration, inaccurate identification of pollutants, poor degradation targeting, and difficulty in parameter control, please refer to [link / reference]. Figure 1 and Figure 2 This embodiment provides the following technical solution:

[0079] A smart, continuous pretreatment process for herbicide-type pesticide wastewater includes:

[0080] First, wastewater is collected in real time, and the collected wastewater is intelligently regulated and transported. The transported wastewater undergoes preliminary filtration, and the pollutant components of the filtered wastewater are identified. Based on the identified pollutants, organic matter is degraded. The wastewater after organic matter degradation undergoes deep detoxification. The wastewater after deep detoxification undergoes flocculation and sedimentation treatment. The wastewater after flocculation and sedimentation treatment undergoes inclined tube sedimentation. The wastewater after inclined tube sedimentation undergoes intelligent adsorption and membrane filtration. The pH value of the wastewater after intelligent adsorption and membrane filtration is intelligently adjusted. Finally, the wastewater with intelligently adjusted pH value is intelligently monitored and feedback is provided.

[0081] Specifically, by collecting wastewater data in real time and intelligently adjusting the delivery process, it can dynamically adapt to water quality fluctuations, avoiding the treatment imbalance caused by fixed parameters in traditional processes, improving pretreatment stability, and quickly removing large particulate impurities through preliminary filtration, reducing subsequent equipment wear and tear. Pollutant component identification enables targeted treatment, allowing for precise selection of efficient degradation methods in the organic matter degradation stage, significantly improving pollutant removal rates and reducing waste caused by indiscriminate chemical dosing. The deep detoxification stage specifically addresses pesticide residue toxicity, and combined with flocculation sedimentation and inclined tube sedimentation, it can efficiently separate colloidal and suspended pollutants, reducing the load on subsequent treatment. The combination of intelligent adsorption and membrane filtration further deepens purification, ensuring that effluent indicators meet standards. Intelligent adjustment throughout the entire process reduces manual intervention and lowers labor costs; precise chemical dosing and efficient equipment operation significantly save consumables and energy, improving process economics.

[0082] Wastewater is collected in real time, and the collected wastewater is intelligently regulated and transported, including:

[0083] Before real-time collection of wastewater, collection points are set up at the discharge nodes. These collection points include the reactor drain outlet in the production workshop, the raw material washing wastewater discharge outlet, the storage tank flushing wastewater outlet, and the workshop's total drainage collection outlet.

[0084] Automatic samplers are installed at each collection point. The automatic samplers collect wastewater and monitor key parameters of the collected water samples in real time using monitoring sensors, including pH sensors, turbidity meters, total organic carbon detectors, and temperature sensors.

[0085] The collected wastewater is transported to the equalization tank through a pipeline. An electromagnetic flow meter is installed on the pipeline to monitor the wastewater flow in real time and adjust the opening of the inlet valve according to the monitoring results.

[0086] Ultimately, the wastewater is transported and regulated.

[0087] Specifically, key sampling points are set up at critical nodes such as the reactor drain outlet in the production workshop and the raw material washing wastewater discharge outlet to achieve full-process coverage from the production source to the total discharge outlet. This "multi-point deployment" mode can accurately capture the characteristic differences of wastewater from different processes, avoiding the distortion of water quality information caused by a single sampling point, and providing more accurate raw data support for subsequent treatment. It is especially suitable for the source tracing analysis of pesticide wastewater with complex composition. Automatic samplers, together with pH sensors, total organic carbon detectors and other types of monitoring equipment, can simultaneously acquire key water quality indicators and environmental parameters such as temperature. Compared with the lag of traditional manual sampling, real-time monitoring can capture sudden changes in water quality in the first instance, gaining reaction time for subsequent adjustment links, reducing the impact risk of sudden pollution on the treatment system. The electromagnetic flowmeter on the delivery pipeline and the inlet valve form a closed-loop control, dynamically adjusting the opening through real-time flow data. This can not only avoid the overflow problem of the equalization tank due to overload of inlet water, but also maintain the stability of the water level in the tank, ensuring the continuous operation of subsequent treatment processes. This intelligent "flow-valve" linkage mode is more precise than traditional manual adjustment, reducing human error by more than 30%. The collection and recording of parameters throughout the process forms a complete water quality database, which can not only be used for real-time adjustment, but also to analyze the pollution contribution of each discharge node by comparing historical data. This provides data support for enterprises to optimize production processes and reduce pollutant emissions, helping to reduce pollution load from the source. Through decentralized collection and real-time monitoring at the source, abnormal situations such as high-concentration wastewater discharge can be detected in advance, and emergency measures such as diversion and dilution can be taken in time to avoid high-load wastewater directly entering the treatment system, causing equipment damage or reduced treatment efficiency, extending equipment life and reducing operation and maintenance costs.

[0088] The transported wastewater undergoes preliminary filtration, and the filtered wastewater is then identified for pollutant components, including:

[0089] The initial filtration uses a combination of bar screen and filter. The bar screen is an automatic rotating stainless steel bar screen with a bar spacing of 1 mm, which is installed at the connection between the outlet of the equalization tank and the delivery pipeline. The filter has a built-in polypropylene pleated filter membrane, which is connected in series on the delivery pipeline downstream of the bar screen.

[0090] After the wastewater is transported to the equalization tank through the conveying pipeline, it first enters the automatic rotating stainless steel bar. The bar motor runs continuously at a speed of 5r / min. The impurities intercepted by the bar surface are removed by the scraper plate and sent to the collection tank as the bar rotates.

[0091] Wastewater passing through the screen flows into the filter, and the filter inlet pressure is maintained at 0.2-0.3MPa. The pressure difference between the inlet and outlet is monitored in real time by a differential pressure transmitter. When the difference exceeds 0.1MPa, the automatic backwashing program is triggered.

[0092] After the automatic backwashing program is triggered, the inlet valve is closed and the backwashing pump is turned on. The filter membrane is backwashed with treated clean water. Normal filtration is restored after the backwashing is completed.

[0093] The filtered wastewater first flows into a buffer tank, where it undergoes multi-dimensional detection. This multi-dimensional detection involves scanning the water sample using a portable gas chromatography-mass spectrometry (GC-MS) instrument and comparing it with a built-in herbicide database to determine the main pesticide components in the wastewater. The herbicide database is retrieved from a database, and high-performance liquid chromatography (HPLC) is used for auxiliary screening.

[0094] The detected pollutants were quantitatively analyzed using the standard curve method, and the types and concentrations of pollutants in the wastewater were obtained after the quantitative analysis.

[0095] Specifically, an automatic rotating stainless steel bar screen (1mm bar spacing) and a polypropylene pleated membrane filter form a two-stage filtration system. The former intercepts large particulate impurities, while the latter deeply removes fine suspended pollutants. This dual-stage synergy ensures that subsequent treatment equipment is protected from physical damage. The bar screen operates continuously at 5 rpm and automatically scrapes sludge. The filter monitors the pressure difference in real time via a differential pressure transmitter, triggering backwashing when the pressure exceeds 0.1 MPa. The entire process requires no manual intervention, improving efficiency by more than 40% compared to traditional manual cleaning methods. The bar screen is made of corrosion-resistant stainless steel, adapting to the complex chemical environment of pesticide wastewater. The filter inlet pressure is maintained at 0.2-0.3 MPa, and backwashing uses treated clean water to avoid secondary pollution, while ensuring stable membrane performance, extending replacement cycles, and reducing consumable costs. The filtered wastewater is temporarily stored in a buffer tank and then scanned using gas chromatography-mass spectrometry combined with a built-in herbicide database, supplemented by high-performance liquid chromatography for qualitative identification of pesticide components. Quantitative analysis using the standard curve method accurately obtains pollutant concentrations. Dual detection methods significantly reduce the risk of missed detections, providing a scientific basis for subsequent targeted treatment. A bar screen is installed at the connection between the outlet of the equalization tank and the delivery pipeline, while a filter is connected in series in the downstream pipeline, forming a continuous filtration chain. The filtered water directly enters the testing stage, minimizing changes in water quality during transmission and ensuring that the test data accurately reflects the characteristics of the filtered wastewater. This improves the consistency of the entire pretreatment process. Two-stage filtration removes impurities in advance, preventing blockage of subsequent testing instrument pipelines. The backwashing procedure promptly restores filtration efficiency, preventing abnormal system pressure caused by filter membrane blockage. Precise pollutant identification provides dosage references for subsequent degradation processes, avoiding excessive or insufficient reagents, ensuring treatment effectiveness while saving costs.

[0096] Organic matter degradation is carried out based on the identified pollutants, including:

[0097] Based on the type and concentration of pollutants in the wastewater, a preset degradation scheme library is automatically matched, which is retrieved from the database.

[0098] Pollutants are targeted for degradation according to a matched degradation scheme, which includes oxidative degradation, photocatalytic degradation and bio-enhanced degradation.

[0099] Among them, oxidative degradation is used to degrade chlorinated organic pollutants in wastewater using the Fenton oxidation method; photocatalytic degradation is used to degrade triazine pollutants in wastewater using an ultraviolet photocatalytic reactor; and bio-enhanced degradation is used to degrade amide pesticides in wastewater using a biological fluidized bed process.

[0100] The system automatically collects key parameters during the targeted degradation process.

[0101] The key parameters include pollutant concentration, wastewater flow rate and treatment volume; pH value, reagent concentration ratio, reaction time, stirring speed and reaction temperature in oxidative degradation; ultraviolet light parameters, catalyst parameters, pH value and reaction temperature in photocatalytic degradation; and microbial environmental parameters, biomass parameters, nutrient ratio, hydraulic retention time and redox potential in bioenhanced degradation.

[0102] The collected key parameters are compared with preset parameter thresholds, and the degradation parameters are adjusted according to the comparison results.

[0103] Ultimately, the degradation of organic matter in the wastewater is completed.

[0104] Specifically, based on the preliminary pollutant component identification results, an automatic matching degradation scheme library is used to select specific processes for wastewater containing different pollutants such as chlorinated organics, triazines, and amides. These processes include Fenton oxidation, ultraviolet photocatalysis, and biological fluidized bed degradation. This avoids the low efficiency of traditional single degradation methods for treating complex pesticide wastewater, significantly improving the targeted nature of degradation and ensuring efficient decomposition of various pollutants. Real-time collection of basic parameters such as pollutant concentration and flow rate, as well as specific key parameters for different degradation processes, such as the reagent ratio for Fenton oxidation, ultraviolet parameters for photocatalysis, and microbial environmental parameters for biodegradation, enables comprehensive monitoring of the degradation process. This provides data support for precise control and management. By comparing key collected parameters with preset thresholds, degradation parameters are dynamically adjusted. For example, in the Fenton reaction, pH and reagent ratios are corrected in real time; UV intensity is optimized during photocatalysis; and nutrient ratios are controlled during biodegradation. This ensures the reaction remains in optimal condition, preventing degradation efficiency decline due to water quality fluctuations. Oxidation, photocatalysis, and bio-enhanced degradation processes are combined as needed, leveraging the rapid decomposition of recalcitrant substances through chemical oxidation while utilizing the economic and environmental benefits of biological treatment. This creates a complementary advantage, reducing treatment costs while ensuring degradation effectiveness. The entire process of parameter collection, comparison, and adjustment forms a closed-loop control system, minimizing human intervention errors and ensuring stable treatment results. Simultaneously, precise control of parameters such as reaction time and hydraulic retention time allows for dynamic matching of treatment capacity and influent load, adapting to wastewater flow fluctuations and ensuring continuous and stable system operation. The charts for organic matter degradation are shown below.

[0105]

[0106] To address the issues of high residual toxicity and complex composition of organic matter after degradation in existing technologies; to resolve problems such as poor adaptability of detoxification methods and lag in parameter control; and to solve the problems of low flocculation and sedimentation efficiency, untimely sludge treatment, and unstable inclined tube sedimentation effects, please refer to [the relevant documentation / reference]. Figure 1 and Figure 2 This embodiment provides the following technical solution:

[0107] Deep detoxification of wastewater after organic matter degradation includes:

[0108] After the organic matter in the wastewater is degraded, it is transported to a buffer homogenizing tank through a conveying pipeline. The buffer homogenizing tank confirms the detoxification method based on the key parameters in the wastewater.

[0109] Detoxification methods include ozone oxidation detoxification, electrochemical oxidation detoxification, and activated carbon adsorption detoxification;

[0110] Among them, ozone oxidation detoxification involves sending wastewater into an ozone contact tower via a booster pump, and the ozone generator's gas production is dynamically adjusted according to the wastewater flow rate. Furthermore, during the reaction process, an online ozone concentration monitor tracks the ozone content in the exhaust gas in real time. Electrochemical oxidation detoxification uses a three-dimensional electrode electrochemical reactor for detoxification treatment. Activated carbon adsorption detoxification involves the oxidized wastewater entering a fixed-bed activated carbon adsorption column, which is filled with granular activated carbon for detoxification treatment of the wastewater.

[0111] During wastewater detoxification treatment, key parameters of the detoxification process are automatically collected;

[0112] Key parameters include oxygen dosage, electrochemical cell voltage, and activated carbon column inlet and outlet pressure. The collected key parameters are compared with preset parameter thresholds, and the detoxification parameters are adjusted according to the comparison results.

[0113] The wastewater detoxification treatment was finally completed.

[0114] Specifically, based on the analysis of key parameters of the wastewater in the buffer homogenization tank, the detoxification method is confirmed. Ozone oxidation, electrochemical oxidation, and activated carbon adsorption form a complementary system: ozone oxidation dynamically adjusts the generator's gas output to match the wastewater flow rate, efficiently decomposing residual toxic small molecules; three-dimensional electrode electrochemical oxidation utilizes strong oxidizing properties to break down complex toxic structures; activated carbon adsorption serves as a final safeguard, further intercepting any remaining pollutants. This three-stage process precisely targets different toxicity characteristics, improving the removal rate by 20%-30% compared to single detoxification methods. An online ozone concentration monitor tracks the exhaust gas content in real time, avoiding secondary pollution caused by excessive ozone while ensuring sufficient reaction; inlet and outlet pressure monitoring of the activated carbon column provides timely warnings of adsorption saturation. The comparison mechanism between key parameters and preset thresholds dynamically adjusts the ozone dosage, electrochemical cell voltage, etc., ensuring the detoxification process is always under optimal conditions, reducing human error; dynamic adjustment of ozone oxidation gas volume reduces energy waste; electrochemical oxidation uses a three-dimensional electrode to improve current efficiency and reduce power consumption; activated carbon adsorption, as a deep treatment, extends the replacement cycle. The three-stage process operates in synergy, ensuring that the effluent toxicity meets standards while reducing operating costs by approximately 15% compared to traditional processes. Real-time monitoring of ozone content in the exhaust gas allows for timely activation of the exhaust gas treatment device, preventing personnel exposure risks. Parameter adjustments in case of abnormal activated carbon column pressure can prevent system failure due to column blockage. Parameter monitoring and dynamic adjustment throughout the entire process provide multiple safeguards for continuous and stable operation, laying a safe water quality foundation for subsequent flocculation and sedimentation processes.

[0115] The wastewater after deep detoxification is treated by flocculation and sedimentation, including:

[0116] The detoxified wastewater is transported to the flocculation reaction tank through a conveying pipe. The monitoring instrument in the flocculation reaction tank monitors the key parameters of the wastewater, including turbidity, pH value and suspended solids concentration.

[0117] The pH of the wastewater in the flocculation reaction tank is adjusted based on the key parameters obtained by the monitoring instrument. The pH adjustment is determined by whether to activate the acid-base adjustment device based on the monitored pH value.

[0118] After pH adjustment, the wastewater in the flocculation reaction tank is stirred. After stirring, inorganic flocculant and organic coagulant aid are added. Polyaluminum chloride is selected as the inorganic flocculant, and the basic dosage is 50-100 mg / L. Polyacrylamide is selected as the organic coagulant aid, and the dosage is 1 / 50-1 / 100 of PAC.

[0119] Wastewater containing inorganic flocculants and organic coagulants flows into a sedimentation tank, where a flow straightener is installed at the front end.

[0120] While the wastewater is settling in the sedimentation tank, the clarity of the wastewater is monitored in real time by turbidity sensors installed at different depths in the wastewater.

[0121] Meanwhile, a conical sludge hopper is installed at the bottom of the sedimentation tank. The sludge thickness is monitored in real time by a sludge concentration meter. When the sludge layer thickness reaches 0.8m, the sludge discharge valve is automatically opened to discharge the sludge.

[0122] The wastewater after the sludge removal operation is treated as wastewater after flocculation and sedimentation.

[0123] Specifically, the flocculation reactor uses a monitor to track turbidity, pH value, and suspended solids concentration in real time. Combined with an acid-base adjustment device, it achieves dynamic pH control, providing a suitable chemical environment for the flocculant to function effectively and preventing a decrease in flocculation efficiency due to pH deviations, thus ensuring reaction stability. A combination of polyaluminum chloride (PAC) and polyacrylamide (PAM) is used, with a basic PAC dosage of 50-100 mg / L and PAM added at 1 / 50-1 / 100 of the PAC dosage. The two work synergistically to enhance the flocculation effect and accelerate the coagulation of colloidal particles. Furthermore, the dosage is linked to water quality parameters, reducing waste caused by blind dosing and lowering treatment costs. A flow rectifier is installed at the front end of the sedimentation tank to eliminate water... Flow disturbance ensures wastewater enters the sedimentation zone evenly; turbidity sensors at different depths monitor clarity in real time, accurately judging sedimentation effect and providing a basis for subsequent process adjustments, improving solid-liquid separation efficiency. A conical sludge hopper, in conjunction with a sludge concentration meter, monitors sludge layer thickness in real time. When it reaches 0.8m, the sludge discharge valve automatically opens to prevent sludge accumulation from affecting the sedimentation space and to prevent water waste caused by excessive sludge discharge, ensuring long-term stable operation of the sedimentation tank. After detoxification, the wastewater directly enters the flocculation reaction tank, forming a complete treatment chain after adjustment, chemical addition, and sedimentation. Parameter monitoring and equipment operation are linked at each stage, reducing manual intervention and achieving seamless connection from deep detoxification to flocculation sedimentation, laying a good foundation for subsequent inclined tube sedimentation.

[0124] The wastewater after flocculation and sedimentation treatment is subjected to inclined tube sedimentation, including:

[0125] Wastewater treated by flocculation and sedimentation in the sedimentation tank is transported to the inclined tube sedimentation tank through a conveying pipe;

[0126] After the wastewater enters the inclined tube sedimentation tank, the operating status of each sensor is monitored in real time by sensors installed at different locations in the inclined tube sedimentation tank.

[0127] The sensors include a pressure sensor installed at the end of the water distribution area; a turbidity probe installed in the middle of the inclined tube; and a level gauge installed in the clear water area.

[0128] The wastewater in the inclined tube sedimentation tank is regulated based on the operating status of the sensors;

[0129] After adjustment, the sludge that slides down the inclined tube is collected in the conical sludge collection hopper at the bottom of the inclined tube sedimentation tank. A sludge concentration sensor is installed at the bottom of the sludge collection hopper.

[0130] When the sludge moisture content drops below 95%, the pneumatic sludge discharge valve is opened, and the sludge is discharged in an intermittent manner. The sludge is discharged into the sludge thickening tank by gravity flow and is combined with the sludge treated by flocculation and sedimentation.

[0131] The wastewater after sludge removal treatment will ultimately be used as the wastewater after inclined tube sedimentation.

[0132] Specifically, by installing pressure sensors at the end of the water distribution zone, turbidity probes in the middle of the inclined tubes, and level gauges in the clear water zone, real-time monitoring of water flow distribution, sedimentation effect, and water level is achieved. Multiple sensors work together to capture system operation details, promptly detecting anomalies such as uneven water distribution and inclined tube blockage, providing data support for precise control and preventing localized sedimentation failures from affecting the overall treatment effect. Dynamic control based on sensor feedback optimizes the residence time and distribution uniformity of water within the inclined tubes, fully leveraging the "shallow sedimentation" advantage of the inclined tube sedimentation tank, significantly shortening particle settling distance, and improving solid-liquid separation efficiency. Compared to traditional horizontal flow sedimentation tanks, the treatment capacity is increased by 2-3 times, with lower effluent turbidity. A sludge concentration sensor at the bottom of the sludge collection hopper accurately monitors the moisture content; when it drops below 95%, intermittent sludge discharge is initiated, preventing excessively high sludge moisture content from increasing the load on subsequent treatment processes and avoiding water waste caused by excessively frequent sludge discharge. Gravity flow discharges the sludge into a sludge thickening tank, where it is combined with previously treated sludge, simplifying the sludge disposal process and reducing transportation costs. Inclined tube sedimentation takes over the flocculation and settling process. Precise status monitoring and control ensure stable effluent quality, providing high-quality feed water for subsequent intelligent adsorption and membrane filtration. Simultaneously, combined sludge treatment reduces redundant construction of sludge treatment units, improving the overall process integration and economy. The use of mature monitoring equipment such as pressure sensors and turbidity probes, combined with the intermittent operation of pneumatic sludge discharge valves, reduces equipment energy consumption and maintenance intensity. Gravity flow sludge discharge requires no additional power, further saving operating costs and making it suitable for long-term continuous operation.

[0133] To address the shortcomings of existing technologies, such as insufficient targeting of adsorption and membrane filtration, low pH adjustment accuracy, delayed monitoring feedback, inadequate control of key parameters, high risk of discharging substandard water, and significant human intervention errors, please refer to [link to relevant documentation]. Figure 1 and Figure 2 This embodiment provides the following technical solution:

[0134] The wastewater after inclined tube sedimentation undergoes intelligent adsorption and membrane filtration, including:

[0135] The wastewater after inclined tube sedimentation is transported to the intelligent adsorption tower through a conveying pipe. The intelligent adsorption tower adopts a bottom-in, top-out flow pattern. In addition, an online ultraviolet spectrophotometer is installed in the intelligent adsorption tower to monitor the pollutant concentration at the adsorption tower outlet in real time.

[0136] After passing through the intelligent adsorption tower, the wastewater enters the membrane filtration pretreatment tank. At the same time, the membrane type is selected according to the water quality characteristics of the wastewater, including the molecular weight and colloidal content of pollutants. The membrane type includes ultrafiltration membrane, nanofiltration membrane, or a combination of ultrafiltration membrane and nanofiltration membrane.

[0137] Wastewater undergoes membrane filtration after passing through an ultrafiltration membrane, nanofiltration membrane, or a combination of ultrafiltration and nanofiltration membranes in a membrane filtration pretreatment tank.

[0138] The wastewater after membrane filtration enters the filter tank, which is equipped with a multi-parameter monitoring instrument, including pH detection, turbidity detection and chemical oxygen demand detection.

[0139] The quality of the wastewater in the filtration tank is determined based on the monitoring results of the multi-parameter monitor.

[0140] If the wastewater fails to meet the standards, the reflux valve will automatically open, and the wastewater will be transported to the front end of the intelligent adsorption tower for reprocessing.

[0141] Specifically, the intelligent adsorption tower adopts a bottom-in, top-out flow pattern to improve the contact efficiency between pollutants and adsorbents. An online ultraviolet spectrophotometer monitors the pollutant concentration at the outlet in real time, dynamically determining the adsorption saturation state and providing accurate information for adsorbent replacement or regeneration. This avoids resource waste due to over-adsorption or insufficient adsorption affecting the treatment effect. Based on the water quality characteristics such as the molecular weight and colloidal content of wastewater pollutants, ultrafiltration membranes, nanofiltration membranes, or combined membranes are flexibly selected: ultrafiltration membranes efficiently retain colloidal and large molecular impurities, nanofiltration membranes specifically remove small molecular pollutants, and combined membranes achieve step-by-step purification. Compared with single-membrane filtration, combined membranes have a stronger adaptability to complex water quality and improve pollutant removal rate by 15%-20%. The filtration tank is equipped with a multi-parameter monitor to simultaneously detect key indicators such as pH, turbidity, and chemical oxygen demand, comprehensively evaluating the effluent quality. The monitoring results are directly linked to the reflux mechanism, ensuring that substandard wastewater is immediately returned to the front end of the intelligent adsorption tower for reprocessing, forming a closed-loop control of "treatment-monitoring-reflux." This prevents substandard wastewater from entering subsequent stages. The intelligent adsorption tower and the membrane filtration pretreatment tank are closely connected. Adsorption pretreatment reduces the membrane filtration load and extends the service life of the membrane modules; membrane filtration deeply purifies and adsorbs residual trace pollutants. The two complement each other, improving overall treatment efficiency. The bottom-in, top-out flow design and dynamic selection of membrane type further optimize the water flow state and purification path. Precise adsorption endpoint monitoring reduces adsorbent consumption, and targeted selection of membrane type reduces filtration energy consumption. Recirculation treatment of substandard water avoids resource waste and improves water resource utilization. The intelligent operation of the entire process reduces manual intervention, lowers operation and maintenance costs, and ensures stable treatment results, laying a high-quality water foundation for subsequent pH adjustment.

[0142] Intelligent pH adjustment of wastewater after intelligent adsorption and membrane filtration, including:

[0143] Wastewater that meets the monitoring standards in the filtration tank is transported to the pH intelligent adjustment tank through a conveying pipeline;

[0144] The pH intelligent adjustment tank is equipped with an acid and alkali reagent storage tank. The acid is a 30% sulfuric acid solution and the alkali is a 20% sodium hydroxide solution. A liquid level sensor is installed in the tank, and a replenishment alarm is triggered when the liquid level is lower than 20%.

[0145] An online pH sensor is installed inside the pH intelligent adjustment tank. The pH sensor collects the pH data of the wastewater every 10 seconds.

[0146] The dosage of acid and alkali reagents is determined based on the collected pH data. Furthermore, during the addition of acid and alkali reagents, the stirrer in the pH intelligent adjustment tank performs stirring operations.

[0147] Ultimately, the pH value of the wastewater is intelligently adjusted.

[0148] Specifically, a 30% sulfuric acid solution and a 20% sodium hydroxide solution are selected as acid-base regulators. These are highly targeted, have a fast reaction rate, and can efficiently neutralize acid-base deviations in wastewater. A level sensor monitors the reagent level in real time, triggering a replenishment alarm when the level falls below 20%, preventing interruptions in regulation due to insufficient reagents and ensuring continuous operation. An online pH sensor collects data every 10 seconds, far exceeding the frequency of traditional manual monitoring. This allows for real-time capture of subtle fluctuations in water pH, providing data support for precise dosing and preventing over- or under-regulation caused by monitoring lag. Based on real-time pH data, the reagent dosage is dynamically calculated, achieving "on-demand replenishment" and reducing reagent waste. The agitator operates continuously during the dosing process. Accelerating the mixing of reagents and wastewater ensures a uniform and thorough neutralization reaction, improves pH adjustment accuracy, and stabilizes the effluent pH value within the target range. The entire process requires no manual intervention; from data acquisition and metering to reagent dosing, everything is automated, reducing human error. A replenishment alarm mechanism reduces the frequency of manual inspections, significantly saving labor costs. Suitable for large-scale continuous wastewater treatment scenarios, it forms a closed-loop control system through high-frequency monitoring and dynamic adjustment, enabling rapid response to water quality fluctuations and ensuring stable effluent pH values, providing standardized water quality samples for subsequent intelligent monitoring. Automated management of acid and alkali reagent storage and dosing also reduces the safety risks of human contact with hazardous chemicals, improving operational safety.

[0149] Finally, the wastewater with intelligent pH adjustment is intelligently monitored and feedback is provided, including:

[0150] After pH value is intelligently adjusted, the wastewater flows into the steady flow zone in the pH intelligent adjustment tank, which is located at the end of the pH intelligent adjustment tank.

[0151] A backup pH sensor is installed in the steady flow zone for secondary monitoring of the wastewater;

[0152] If the pH value remains stable between 6.8 and 7.2 for two consecutive minutes, and the difference between two monitoring data is ≤0.1 pH unit, the adjustment is considered qualified.

[0153] If the pH value monitored in the second monitoring deviates from the target range, the return pump at the bottom of the steady flow zone will start automatically, sending 30% of the wastewater back to the front end of the pH intelligent adjustment tank for readjustment, while automatically correcting the dosage of acid and alkali reagents.

[0154] Wastewater that has been deemed to be properly regulated is transported to a qualified flow tank, and sensors in the qualified flow tank monitor key parameters of the properly regulated wastewater.

[0155] Key parameters include basic water quality parameters, pollutant residue parameters, specific pesticide component parameters, and safety indicator parameters.

[0156] At the same time, the monitored data is transmitted to the display terminal in real time for parameter display.

[0157] Specifically, a backup pH sensor is installed in the stabilization zone for secondary monitoring. A pass standard is set where the pH value remains stable between 6.8 and 7.2 for two consecutive minutes, and the difference between the two data points is ≤0.1 pH units. This dual verification avoids misjudgment caused by single monitoring errors, ensuring that the effluent pH value accurately meets the standard and providing a reliable water quality basis for subsequent discharge or reuse. When the secondary monitoring pH value deviates from the target range, the return pump is automatically started to send 30% of the wastewater back to the front end of the equalization tank for retreatment. At the same time, the dosage of acid and alkali reagents is corrected, forming a closed-loop regulation of "monitoring-judgment-return-correction". This quickly compensates for regulation deviations and significantly reduces the risk of discharging unqualified water. Sensors in the qualified water flow tank monitor key parameters of the qualified wastewater, and the data is transmitted to the display terminal in real time, realizing full-process visual traceability of the treatment results. Managers can intuitively grasp the water quality status, providing data support for process optimization and improving management efficiency. The design of the stabilization zone reduces the impact of water flow disturbance on monitoring, and the backup sensor reduces the risk of single equipment failure. The recirculation ratio is controlled at 30%, which ensures the reprocessing effect while avoiding the sudden increase in system load caused by full recirculation, balancing treatment efficiency and stability. From secondary monitoring and qualification judgment to recirculation correction, the entire process requires no manual intervention, reducing human operation error. Real-time data display and anomaly early warning functions reduce the intensity of manual inspection, making it suitable for large-scale continuous wastewater treatment scenarios, significantly saving operation and maintenance costs while ensuring treatment effect.

[0158] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0159] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A smart continuous pretreatment process for herbicide-type pesticide wastewater, characterized in that, include: First, wastewater is collected in real time, and then the collected wastewater is intelligently regulated and transported. The wastewater is initially filtered, and the pollutants in the filtered wastewater are identified. Based on the identified pollutants, organic matter is degraded. The wastewater after organic matter degradation is then subjected to deep detoxification. Finally, the wastewater after deep detoxification is subjected to flocculation and sedimentation treatment. The wastewater after flocculation and sedimentation treatment is subjected to inclined tube sedimentation; the wastewater after inclined tube sedimentation is subjected to intelligent adsorption and membrane filtration; the pH value of the wastewater after intelligent adsorption and membrane filtration is intelligently adjusted; and finally, the wastewater after intelligent pH adjustment is intelligently monitored and fed back. The transported wastewater undergoes preliminary filtration, and the filtered wastewater is then identified for pollutant components, including: The initial filtration uses a combination of bar screen and filter. The bar screen is an automatic rotating stainless steel bar screen with a bar spacing of 1 mm, which is installed at the connection between the outlet of the equalization tank and the delivery pipeline. The filter has a built-in polypropylene pleated filter membrane, which is connected in series on the delivery pipeline downstream of the bar screen. After the wastewater is transported to the equalization tank through the conveying pipeline, it first enters the automatic rotating stainless steel bar. The bar motor runs continuously at a speed of 5r / min. The impurities intercepted by the bar surface are removed by the scraper plate and sent to the collection tank as the bar rotates. Wastewater passing through the screen flows into the filter, and the filter inlet pressure is maintained at 0.2-0.3MPa. The pressure difference between the inlet and outlet is monitored in real time by a differential pressure transmitter. When the difference exceeds 0.1MPa, the automatic backwashing program is triggered. After the automatic backwashing program is triggered, the inlet valve is closed and the backwashing pump is turned on. The filter membrane is backwashed with treated clean water. Normal filtration is restored after the backwashing is completed. The filtered wastewater first flows into a buffer tank, where it undergoes multi-dimensional detection. This multi-dimensional detection involves scanning the water sample using a portable gas chromatography-mass spectrometry (GC-MS) instrument and comparing it with a built-in herbicide database to determine the main pesticide components in the wastewater. The herbicide database is retrieved from a database, and high-performance liquid chromatography (HPLC) is used for auxiliary screening. The detected pollutants were quantitatively analyzed using the standard curve method, and the types and concentrations of pollutants in the wastewater were obtained after the quantitative analysis. The automatic rotating stainless steel bar and the polypropylene pleated membrane filter form a two-stage filtration system. The former intercepts large particulate impurities, while the latter deeply removes fine suspended pollutants. The two-stage synergy ensures that subsequent treatment equipment is protected from physical damage. Finally, the wastewater with intelligent pH adjustment is intelligently monitored and feedback is provided, including: After pH value is intelligently adjusted, the wastewater flows into the steady flow zone in the pH intelligent adjustment tank, which is located at the end of the pH intelligent adjustment tank. A backup pH sensor is installed in the steady flow zone for secondary monitoring of the wastewater; If the pH value remains stable between 6.8 and 7.2 for two consecutive minutes, and the difference between two monitoring data is ≤0.1 pH unit, the adjustment is considered qualified. If the pH value monitored in the second monitoring deviates from the target range, the return pump at the bottom of the steady flow zone will start automatically, sending 30% of the wastewater back to the front end of the pH intelligent adjustment tank for readjustment, while automatically correcting the dosage of acid and alkali reagents. Wastewater that has been deemed to be properly regulated is transported to a qualified flow tank, and sensors in the qualified flow tank monitor key parameters of the properly regulated wastewater. Key parameters include basic water quality parameters, pollutant residue parameters, specific pesticide component parameters, and safety indicator parameters. At the same time, the monitored data is transmitted to the display terminal in real time for parameter display.

2. The intelligent continuous pretreatment process for herbicide wastewater according to claim 1, characterized in that, Wastewater is collected in real time, and the collected wastewater is intelligently regulated and transported, including: Before real-time collection of wastewater, collection points are set up at the discharge nodes. These collection points include the reactor drain outlet in the production workshop, the raw material washing wastewater discharge outlet, the storage tank flushing wastewater outlet, and the workshop's total drainage collection outlet. Automatic samplers are installed at each collection point. The automatic samplers collect wastewater and monitor key parameters of the collected water samples in real time using monitoring sensors, including pH sensors, turbidity meters, total organic carbon detectors, and temperature sensors. The collected wastewater is transported to the equalization tank through a pipeline. An electromagnetic flow meter is installed on the pipeline to monitor the wastewater flow in real time and adjust the opening of the inlet valve according to the monitoring results. Ultimately, the wastewater is transported and regulated.

3. The intelligent continuous pretreatment process for herbicide wastewater according to claim 2, characterized in that, Organic matter degradation is carried out based on the identified pollutants, including: Based on the type and concentration of pollutants in the wastewater, a preset degradation scheme library is automatically matched, which is retrieved from the database. Pollutants are targeted for degradation according to a matched degradation scheme, which includes oxidative degradation, photocatalytic degradation and bio-enhanced degradation. Among them, oxidative degradation is used to degrade chlorinated organic pollutants in wastewater using the Fenton oxidation method; photocatalytic degradation is used to degrade triazine pollutants in wastewater using an ultraviolet photocatalytic reactor; and bio-enhanced degradation is used to degrade amide pesticides in wastewater using a biological fluidized bed process. The system automatically collects key parameters during the targeted degradation process. The key parameters include pollutant concentration, wastewater flow rate and treatment volume; pH value, reagent concentration ratio, reaction time, stirring speed and reaction temperature in oxidative degradation; ultraviolet light parameters, catalyst parameters, pH value and reaction temperature in photocatalytic degradation; and microbial environmental parameters, biomass parameters, nutrient ratio, hydraulic retention time and redox potential in bioenhanced degradation. The collected key parameters are compared with preset parameter thresholds, and the degradation parameters are adjusted according to the comparison results. Ultimately, the degradation of organic matter in the wastewater is completed.

4. The intelligent continuous pretreatment process for herbicide wastewater according to claim 3, characterized in that, Deep detoxification of wastewater after organic matter degradation includes: After the organic matter in the wastewater is degraded, it is transported to a buffer homogenizing tank through a conveying pipeline. The buffer homogenizing tank confirms the detoxification method based on the key parameters in the wastewater. Detoxification methods include ozone oxidation detoxification, electrochemical oxidation detoxification, and activated carbon adsorption detoxification; Among them, ozone oxidation detoxification involves sending wastewater into an ozone contact tower via a booster pump, and the ozone generator's gas production is dynamically adjusted according to the wastewater flow rate. Furthermore, during the reaction process, an online ozone concentration monitor tracks the ozone content in the exhaust gas in real time. Electrochemical oxidation detoxification uses a three-dimensional electrode electrochemical reactor for detoxification treatment. Activated carbon adsorption detoxification involves the oxidized wastewater entering a fixed-bed activated carbon adsorption column, which is filled with granular activated carbon for detoxification treatment of the wastewater. During wastewater detoxification treatment, key parameters of the detoxification process are automatically collected; Key parameters include oxygen dosage, electrochemical cell voltage, and activated carbon column inlet and outlet pressure. The collected key parameters are compared with preset parameter thresholds, and the detoxification parameters are adjusted according to the comparison results. The wastewater detoxification treatment was finally completed.

5. The intelligent continuous pretreatment process for herbicide wastewater according to claim 4, characterized in that, The wastewater after deep detoxification is treated by flocculation and sedimentation, including: The detoxified wastewater is transported to the flocculation reaction tank through a conveying pipe. The monitoring instrument in the flocculation reaction tank monitors the key parameters of the wastewater, including turbidity, pH value and suspended solids concentration. The pH of the wastewater in the flocculation reaction tank is adjusted based on the key parameters obtained by the monitoring instrument. The pH adjustment is determined by whether to activate the acid-base adjustment device based on the monitored pH value. After pH adjustment, the wastewater in the flocculation reaction tank is stirred. After stirring, inorganic flocculant and organic coagulant aid are added. Polyaluminum chloride is selected as the inorganic flocculant, and the basic dosage is 50-100 mg / L. Polyacrylamide is selected as the organic coagulant aid, and the dosage is 1 / 50-1 / 100 of PAC. Wastewater containing inorganic flocculants and organic coagulants flows into a sedimentation tank, where a flow straightener is installed at the front end. While the wastewater is settling in the sedimentation tank, the clarity of the wastewater is monitored in real time by turbidity sensors installed at different depths in the wastewater. Meanwhile, a conical sludge hopper is installed at the bottom of the sedimentation tank. The sludge thickness is monitored in real time by a sludge concentration meter. When the sludge layer thickness reaches 0.8m, the sludge discharge valve is automatically opened to discharge the sludge. The wastewater after the sludge removal operation is treated as wastewater after flocculation and sedimentation.

6. The intelligent continuous pretreatment process for herbicide wastewater according to claim 5, characterized in that, The wastewater after flocculation and sedimentation treatment is subjected to inclined tube sedimentation, including: Wastewater treated by flocculation and sedimentation in the sedimentation tank is transported to the inclined tube sedimentation tank through a conveying pipe; After the wastewater enters the inclined tube sedimentation tank, the operating status of each sensor is monitored in real time by sensors installed at different locations in the inclined tube sedimentation tank. The sensors include a pressure sensor installed at the end of the water distribution area; a turbidity probe installed in the middle of the inclined tube; and a level gauge installed in the clear water area. The wastewater in the inclined tube sedimentation tank is regulated based on the operating status of the sensors; After adjustment, the sludge that slides down the inclined tube is collected in the conical sludge collection hopper at the bottom of the inclined tube sedimentation tank. A sludge concentration sensor is installed at the bottom of the sludge collection hopper. When the sludge moisture content drops below 95%, the pneumatic sludge discharge valve is opened, and the sludge is discharged in an intermittent manner. The sludge is discharged into the sludge thickening tank by gravity flow and is combined with the sludge treated by flocculation and sedimentation. The wastewater after sludge removal treatment will ultimately be used as the wastewater after inclined tube sedimentation.

7. The intelligent continuous pretreatment process for herbicide wastewater according to claim 6, characterized in that, The wastewater after inclined tube sedimentation undergoes intelligent adsorption and membrane filtration, including: The wastewater after inclined tube sedimentation is transported to the intelligent adsorption tower through a conveying pipe. The intelligent adsorption tower adopts a bottom-in, top-out flow pattern. In addition, an online ultraviolet spectrophotometer is installed in the intelligent adsorption tower to monitor the pollutant concentration at the adsorption tower outlet in real time. After passing through the intelligent adsorption tower, the wastewater enters the membrane filtration pretreatment tank. At the same time, the membrane type is selected according to the water quality characteristics of the wastewater, including the molecular weight and colloidal content of pollutants. The membrane type includes ultrafiltration membrane, nanofiltration membrane, or a combination of ultrafiltration membrane and nanofiltration membrane. Wastewater undergoes membrane filtration after passing through an ultrafiltration membrane, nanofiltration membrane, or a combination of ultrafiltration and nanofiltration membranes in a membrane filtration pretreatment tank. The wastewater after membrane filtration enters the filter tank, which is equipped with a multi-parameter monitoring instrument, including pH detection, turbidity detection and chemical oxygen demand detection. The quality of the wastewater in the filtration tank is determined based on the monitoring results of the multi-parameter monitor. If the wastewater fails to meet the standards, the reflux valve will automatically open, and the wastewater will be transported to the front end of the intelligent adsorption tower for reprocessing.

8. The intelligent continuous pretreatment process for herbicide wastewater according to claim 7, characterized in that, Intelligent pH adjustment of wastewater after intelligent adsorption and membrane filtration, including: Wastewater that meets the monitoring standards in the filtration tank is transported to the pH intelligent adjustment tank through a conveying pipeline; The pH intelligent adjustment tank is equipped with an acid and alkali reagent storage tank. The acid is a 30% sulfuric acid solution and the alkali is a 20% sodium hydroxide solution. A liquid level sensor is installed in the tank, and a replenishment alarm is triggered when the liquid level is lower than 20%. An online pH sensor is installed inside the pH intelligent adjustment tank. The pH sensor collects the pH data of the wastewater every 10 seconds. The dosage of acid and alkali reagents is determined based on the collected pH data. Furthermore, during the addition of acid and alkali reagents, the stirrer in the pH intelligent adjustment tank performs stirring operations. Ultimately, the pH value of the wastewater is intelligently adjusted.

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