Intelligent continuous pretreatment process for herbicide pesticide wastewater

Abstract

The invention discloses an intelligent continuous pretreatment process for herbicide pesticide wastewater, relates to the technical field of pesticide wastewater pretreatment, and aims to solve the problem of poor removal effect of pesticide residues in wastewater. According to the method, Fenton oxidation, photocatalysis and other processes are accurately selected for different pollutants such as chlorinated organic compounds and triazines, the degradation pertinence is greatly improved, the pollutant removal rate is remarkably increased, all links are seamlessly connected, a pretreatment-deep purification closed loop is formed, the adaptability to complex pesticide wastewater is improved by 40% compared with a single process, and the method is suitable for industrial production. By combining the design of sludge combined treatment, gravity flow sludge discharge and the like, the energy consumption and the operation and maintenance cost are remarkably saved, a multi-stage monitoring and parameter dynamic adjustment mechanism is adopted, the reaction conditions can be timely corrected, the blind feeding of chemicals is reduced, the treatment effect is ensured, the waste of consumables is reduced, and the economic benefit is increased. Compared with the traditional process, the medicament consumption is reduced by more than 30%.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide wastewater pretreatment, and in particular to an intelligent continuous pretreatment process for herbicide pesticide wastewater. Background Art

[0002] Existing herbicide pesticide wastewater has a complex composition, containing a variety of difficult-to-degrade pollutants such as chlorinated organics, triazines, and amides. It is highly toxic and stable, and traditional pretreatment processes have obvious limitations. First, collection and adjustment are delayed, and sampling mostly relies on a single discharge port, which makes it difficult to reflect the differences in wastewater characteristics in different production links. When the flow rate and water quality fluctuate, adjustments are not timely, which can easily lead to an imbalance in the load of the subsequent treatment system. Second, the treatment is not targeted enough. Filtration is mostly single-stage treatment, impurity removal is not thorough, and the identification of pollutants is vague. The degradation process lacks targeting, the decomposition efficiency of specific pollutants is low, and the residual toxicity is high. Third, the process coordination is poor. The parameters of the detoxification, flocculation, adsorption and other links are fixed, which is difficult to adapt to changes in water quality. Monitoring feedback is delayed, and problems such as substandard treatment and serious waste of reagents often occur, which cannot meet the needs of continuous and efficient pretreatment. Summary of the Invention

[0003] The purpose of the present invention is to provide an intelligent continuous pretreatment process for herbicide pesticide wastewater. Fenton oxidation, photocatalysis and other processes are accurately selected for different pollutants such as chlorinated organics and triazines, which greatly improves the targeted degradation and significantly improves the pollutant removal rate. Each link is seamlessly connected to form a "pretreatment-deep purification" closed loop. Compared with a single process, the adaptability to complex pesticide wastewater is improved by 40%, and indicators such as effluent turbidity and pollutant residues are better. Accurate dosing and efficient operation of equipment are combined with sludge merging treatment, gravity flow sludge discharge and other designs, which significantly save energy consumption and operation and maintenance costs. The multi-level monitoring and parameter dynamic adjustment mechanism can timely correct the reaction conditions and reduce the blind addition of reagents, thereby ensuring the treatment effect and reducing the waste of consumables. The reagent consumption is reduced by more than 30% compared with the traditional process, which can solve the problems in the existing technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An intelligent continuous pretreatment process for herbicide pesticide wastewater, comprising:

[0006] First, the wastewater is collected in real time, and the collected wastewater is intelligently adjusted and transported; the transported wastewater is preliminarily filtered, and the pollutant components of the filtered wastewater are identified; organic matter is degraded according to the identified pollutants; the wastewater after organic matter degradation is deeply detoxified; 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; finally, the wastewater after intelligent pH adjustment is intelligently monitored and feedback is provided.

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

[0008] Before collecting wastewater in real time, collection points are set up at the discharge nodes, including the reactor drain outlet of the production workshop, the raw material cleaning wastewater outlet, the storage tank flushing wastewater outlet and the workshop total drainage collection outlet;

[0009] An automatic sampler is installed at each collection point to collect wastewater. During the collection process, monitoring sensors are used to monitor the key parameters of the collected water samples in real time. The monitoring sensors include pH sensors, turbidity meters, total organic carbon detectors, and temperature sensors.

[0010] The collected wastewater is transported to the regulating tank through a delivery pipeline, wherein an electromagnetic flowmeter is installed on the delivery pipeline to monitor the wastewater flow in real time and adjust the opening of the water inlet valve according to the monitoring results;

[0011] Finally, the transportation and regulation of wastewater are completed.

[0012] Preferably, the transported wastewater is preliminarily filtered, and the pollutant components of the filtered wastewater are identified, including:

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

[0014] Before the wastewater is transported to the regulating tank through the conveying pipeline, it first enters the automatic rotating screen. The screen motor runs continuously at a speed of 5r / min. The impurities intercepted by the screen surface are removed to the collection tank by the scraper as it rotates;

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

[0016] After the automatic backwash program is triggered, the water inlet valve is closed, the backwash pump is turned on, and the treated clean water is used to backwash the filter membrane. After the flushing is completed, normal filtration is resumed;

[0017] The filtered wastewater first flows into a buffer water tank, where it undergoes multi-dimensional testing. This involves scanning water samples using a portable gas chromatography-mass spectrometer and comparing them against 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 is used for auxiliary screening.

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

[0019] Preferably, organic matter degradation is performed based on the identified polluting components, including:

[0020] Automatically match the preset degradation solution library according to the type and concentration of pollutants in the wastewater, where the degradation solution library is retrieved from the database;

[0021] Targeted degradation of pollutants is carried out according to matching degradation schemes, including oxidative degradation, photocatalytic degradation and bio-enhanced degradation;

[0022] Among them, oxidation degradation is for wastewater containing chlorinated organic pollutants, and Fenton oxidation method is used for degradation; photocatalytic degradation is for wastewater containing triazines, and ultraviolet photocatalytic reactor is used for degradation; ultraviolet photocatalytic reactor is for wastewater containing amide pesticides, and biological fluidized bed process is used for degradation;

[0023] Automatically collect key parameters of the degradation process during targeted degradation;

[0024] Among them, the key parameters are pollutant concentration, wastewater flow and treatment volume, as well as pH value, reagent concentration ratio, reaction time, stirring speed and reaction temperature in oxidative degradation; UV parameters, catalyst parameters, pH value and reaction temperature in photocatalytic degradation; microbial environmental parameters, biomass parameters, nutrient ratio, hydraulic retention time and redox potential in bio-enhanced degradation;

[0025] Compare the collected key parameters with the preset parameter thresholds, and adjust the degradation parameters of the targeted degradation process according to the comparison results;

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

[0027] Preferably, the wastewater after organic matter degradation is subjected to deep detoxification, including:

[0028] After the organic matter in the wastewater is degraded, it is transported to the buffer homogenization tank through the conveying pipeline. The buffer homogenization 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 is that the wastewater is pumped into the ozone contact tower by a lifting pump, and the gas output of the ozone generator is dynamically adjusted according to the wastewater flow rate. In addition, during the reaction process, the online ozone concentration monitor tracks the ozone content in the tail gas in real time; electrochemical oxidation detoxification is carried out using a three-dimensional electrode electrochemical reactor for detoxification; activated carbon adsorption detoxification is that the wastewater after oxidation treatment enters a fixed-bed activated carbon adsorption column, which is filled with granular activated carbon, and the granular activated carbon detoxifies the wastewater;

[0031] When detoxifying wastewater, key parameters of the detoxification process are automatically collected;

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

[0033] Finally, the detoxification treatment of wastewater is 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 delivery pipe. The monitor 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 according to the key parameters obtained by the monitor. The pH adjustment is to determine whether to start the acid-base adjustment device for adjustment according to the monitored pH value;

[0037] After pH adjustment is completed, the wastewater in the flocculation reaction tank is stirred, and then an inorganic flocculant and an organic coagulant aid are added. The inorganic flocculant is polyaluminium chloride, and the basic dosage is 50-100 mg / L; the organic coagulant is polyacrylamide, and the dosage is 1 / 50-1 / 100 of PAC;

[0038] The wastewater after adding inorganic flocculants and organic coagulants flows into the sedimentation tank, wherein a rectifier plate is set at the front end of the sedimentation tank;

[0039] As wastewater settles in the sedimentation tank, turbidity sensors installed at different depths in the wastewater are used to monitor the clarity of the wastewater in real time;

[0040] At the same time, a conical mud hopper is set at the bottom of the sedimentation tank, and the sludge thickness is monitored in real time through a sludge concentration meter. When the mud layer thickness reaches 0.8m, the mud discharge valve is automatically opened to discharge the mud;

[0041] The wastewater after the sludge discharge operation is used as wastewater after flocculation and sedimentation treatment.

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

[0043] The wastewater after flocculation and sedimentation treatment in the sedimentation tank is transported to the inclined tube sedimentation tank through a delivery pipe;

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

[0045] Among them, 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 pipe; and a liquid level meter installed in the clean water area;

[0046] Regulate the wastewater in the inclined tube sedimentation tank according to the operating status of the sensor;

[0047] After regulation, the sludge sliding down the inclined tube is collected in the conical mud collecting hopper at the bottom of the inclined tube sedimentation tank. A sludge concentration sensor is installed at the bottom of the mud collecting hopper.

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

[0049] Finally, the wastewater after sludge treatment is used as 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 the inclined tube sedimentation is transported to the intelligent adsorption tower through a delivery pipe. The intelligent adsorption tower adopts a bottom-in and top-out flow mode. In addition, an online UV 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, which include the molecular weight of pollutants and the colloid content. The membrane type includes ultrafiltration membrane, nanofiltration membrane or a combination of ultrafiltration membrane and nanofiltration membrane;

[0053] The wastewater is filtered through an ultrafiltration membrane, a 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 water tank, and a multi-parameter monitor is installed in the filter water tank, including pH detection, turbidity detection and chemical oxygen demand detection;

[0055] Determine whether the wastewater in the filter water tank is qualified based on the monitoring results of the multi-parameter monitor;

[0056] If the quality is unqualified, the reflux valve will be automatically opened to transport the unqualified wastewater to the front end of the intelligent adsorption tower for reprocessing.

[0057] Preferably, the wastewater after intelligent adsorption and membrane filtration is subjected to intelligent pH adjustment, comprising:

[0058] The qualified wastewater in the filtered water tank is transported to the pH intelligent adjustment tank through the transmission pipeline;

[0059] Among them, an acid and alkali agent storage tank is set in the pH intelligent adjustment pool. The acid agent is 30% sulfuric acid solution and the alkali agent is 20% sodium hydroxide solution. A liquid level sensor is installed in the tank. When the liquid level is lower than 20%, the drug replenishment alarm is triggered.

[0060] An online pH sensor is installed in the pH intelligent adjustment tank, and the pH sensor collects pH data of the wastewater every 10 seconds;

[0061] The dosage of acid and alkali reagents is determined based on the results of the collected pH data. In addition, during the addition of acid and alkali reagents, the agitator in the pH intelligent regulating tank performs stirring operation;

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

[0063] Preferably, the wastewater after the pH value is intelligently adjusted is finally subjected to intelligent monitoring and feedback, including:

[0064] The wastewater after the pH value is intelligently adjusted flows into the steady flow area in the pH intelligent adjustment tank, wherein the steady flow area is at the end of the pH intelligent adjustment tank;

[0065] A spare pH sensor is installed in the steady flow area to conduct secondary monitoring of the wastewater;

[0066] If the pH value is stable between 6.8-7.2 for 2 consecutive minutes, and the difference between the two monitoring data is ≤0.1pH unit, the adjustment is considered qualified;

[0067] If the secondary monitored pH value deviates from the target range, the reflux pump at the bottom of the steady flow area will automatically start to send 30% of the wastewater back to the front end of the pH intelligent adjustment tank for readjustment, and automatically correct the dosage of acid and alkali reagents at the same time;

[0068] The wastewater that is judged to be qualified for regulation is transported to a qualified water flow pool, and the sensors in the qualified water flow pool monitor key parameters of the qualified wastewater;

[0069] Among them, key parameters include basic water quality parameters, pollutant residue parameters, specific pesticide component parameters and safety index 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 present invention has the following beneficial effects:

[0072] 1. The present invention provides an intelligent continuous pretreatment process for herbicide pesticide wastewater. This process collects wastewater data in real time and dynamically adjusts the flow of wastewater, enabling rapid adaptation to water quality fluctuations and avoiding treatment imbalances caused by fixed parameters in traditional processes. By combining pollutant component identification with a dedicated degradation solution library, Fenton oxidation and photocatalysis processes are precisely selected for different pollutants, such as chlorinated organics and triazines, significantly improving degradation targeting and significantly increasing pollutant removal rates. Furthermore, a multi-level monitoring and dynamic parameter adjustment mechanism enables timely correction of reaction conditions, reducing the blind addition of reagents, ensuring treatment effectiveness, and reducing consumable waste. Compared to traditional processes, reagent consumption is reduced by over 30%.

[0073] 2. This invention provides an intelligent, continuous pretreatment process for herbicide pesticide wastewater. The deep detoxification process utilizes a combination of ozone oxidation and electrochemical oxidation to specifically address pesticide residue toxicity. Flocculation and sedimentation are combined with inclined tube sedimentation, utilizing rectifier plates and turbidity monitoring to optimize solid-liquid separation, efficiently removing colloids and suspended solids and reducing subsequent processing loads. Intelligent adsorption and membrane filtration employ a stepwise purification method, incorporating a mechanism for returning unqualified water to ensure consistent effluent standards. These seamlessly integrated processes form a closed "pretreatment-deep purification" loop, improving adaptability to complex pesticide wastewater by 40% compared to single-process methods, and achieving superior effluent turbidity, residual pollutants, and other indicators.

[0074] 3. The present invention provides an intelligent continuous pretreatment process for herbicide pesticide wastewater. Intelligent operation throughout the entire process reduces manual intervention and reduces labor costs by over 30%. Precise dosing and efficient equipment operation, combined with sludge merging and gravity sludge drainage, significantly save energy and operation and maintenance costs. Real-time monitoring and a dual-verification mechanism, combined with unqualified water return treatment, effectively avoid the risk of substandard wastewater discharge. Furthermore, the equipment utilizes corrosion-resistant materials and features automated backwashing to extend equipment life, reduce downtime, and ensure long-term stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0077] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0078] In order to solve the problems in existing technologies such as incomplete wastewater collection, delayed regulation, incomplete impurity filtration, inaccurate identification of pollutants, poor targeted degradation, and difficult parameter control, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions:

[0079] An intelligent continuous pretreatment process for herbicide pesticide wastewater, comprising:

[0080] First, the wastewater is collected in real time, and the collected wastewater is intelligently adjusted and transported; the transported wastewater is preliminarily filtered, and the pollutant components of the filtered wastewater are identified; organic matter is degraded according to the identified pollutants; the wastewater after organic matter degradation is deeply detoxified; 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; finally, the wastewater after intelligent pH adjustment is intelligently monitored and feedback is provided.

[0081] Specifically, by collecting wastewater data in real time and intelligently adjusting the delivery, it can dynamically adapt to water quality fluctuations, avoid treatment imbalances caused by fixed parameters in traditional processes, improve pretreatment stability, and quickly remove large particles of impurities through initial filtration, reducing subsequent equipment losses. Pollutant component identification enables targeted treatment, enabling the organic matter degradation process to accurately select efficient degradation methods, significantly improving pollutant removal rates and reducing waste caused by blindly adding chemicals. The deep detoxification process specifically addresses the toxicity of pesticide residues. Combined with flocculation sedimentation and inclined tube sedimentation, it can efficiently separate colloids and suspended pollutants, reducing the subsequent treatment load. The combination of intelligent adsorption and membrane filtration further purifies the water to ensure that effluent indicators meet standards. Intelligent regulation of the entire process reduces manual intervention and lowers labor costs. Precise dosing of chemicals and efficient operation of equipment significantly save consumables and energy consumption, improving process economy. Intelligent regulation of the entire process reduces manual intervention and lowers labor costs. Precise dosing of chemicals and efficient operation of equipment significantly save consumables and energy consumption, improving process economy.

[0082] Collect wastewater in real time and intelligently regulate and transport the collected wastewater, including:

[0083] Before collecting wastewater in real time, collection points are set up at the discharge nodes, including the reactor drain outlet of the production workshop, the raw material cleaning wastewater outlet, the storage tank flushing wastewater outlet and the workshop total drainage collection outlet;

[0084] An automatic sampler is installed at each collection point to collect wastewater. During the collection process, monitoring sensors are used to monitor the key parameters of the collected water samples in real time. The monitoring sensors include pH sensors, turbidity meters, total organic carbon detectors, and temperature sensors.

[0085] The collected wastewater is transported to the regulating tank through a delivery pipeline, wherein an electromagnetic flowmeter is installed on the delivery pipeline to monitor the wastewater flow in real time and adjust the opening of the water inlet valve according to the monitoring results;

[0086] Finally, the transportation and regulation of wastewater are completed.

[0087] Specifically, key nodes such as the reactor drain outlet in the production workshop and the discharge outlet for the wastewater from raw material cleaning are selected to set up collection points, achieving full coverage of the entire process from the production source to the main discharge outlet. This "multi-point control" model can accurately capture the differences in the characteristics of wastewater from different processes, avoid the distortion of water quality information caused by a single collection point, and provide more accurate raw data support for subsequent processing. It is particularly suitable for traceability analysis of pesticide wastewater with complex components. The automatic sampler is combined with multiple types of monitoring equipment such as pH sensors and total organic carbon detectors to simultaneously obtain 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 place, buy reaction time for subsequent adjustment links, and reduce the risk of sudden pollution impacting the treatment system. The electromagnetic flowmeter on the transmission pipeline forms a closed-loop control with the water inlet valve. The opening is dynamically adjusted based on real-time flow data. This can not only avoid overflow problems caused by water overload in the regulating tank, but also maintain a stable water level in the tank to ensure the continuous operation of subsequent treatment processes. This "flow-valve" intelligent linkage mode is more accurate than traditional manual adjustment and can reduce human operation errors by more than 30%. The parameter collection and recording of the entire process form a complete water quality database, which can not only be used for real-time adjustment, but also analyze the pollution contribution of each emission node through historical data comparison, providing data basis for enterprises to optimize production processes and reduce pollutant emissions, helping to reduce pollution loads from the source. Through decentralized collection and real-time monitoring at the source, abnormal situations such as high-concentration wastewater discharge can be discovered 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 service life, and reducing operation and maintenance costs.

[0088] The transported wastewater is preliminarily filtered and the pollutant components of the filtered wastewater are identified, including:

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

[0090] Before the wastewater is transported to the regulating tank through the conveying pipeline, it first enters the automatic rotating screen. The screen motor runs continuously at a speed of 5r / min. The impurities intercepted by the screen surface are removed to the collection tank by the scraper as it rotates;

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

[0092] After the automatic backwash program is triggered, the water inlet valve is closed, the backwash pump is turned on, and the treated clean water is used to backwash the filter membrane. After the flushing is completed, normal filtration is resumed;

[0093] The filtered wastewater first flows into a buffer water tank, where it undergoes multi-dimensional testing. This involves scanning water samples using a portable gas chromatography-mass spectrometer and comparing them against 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 is used for auxiliary screening.

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

[0095] Specifically, the automatic rotating stainless steel grid (bar spacing 1mm) and the polypropylene pleated membrane filter form a two-stage filtration. The former intercepts large particles of impurities, and the latter deeply removes fine suspended pollutants. The two-stage synergy ensures that subsequent treatment equipment is protected from physical damage. The grid operates continuously at 5r / min and automatically scrapes the residue. The filter monitors the pressure difference in real time through a differential pressure transmitter. Backwashing is triggered when it exceeds 0.1MPa. No manual intervention is required for the entire process, which is more than 40% more efficient than the traditional manual cleaning mode. The grid is made of corrosion-resistant stainless steel to adapt to the complex chemical environment of pesticide wastewater. The filter inlet pressure is stable at 0.2-0.3MPa, and treated water is used for backwashing to avoid secondary pollution. At the same time, it ensures the stability of the filter membrane performance, extends the replacement cycle, and reduces the cost of consumables. The filtered wastewater is temporarily stored in a buffer water tank and scanned using a gas chromatography-mass spectrometer combined with a built-in herbicide database, and assisted by high-performance liquid chromatography for qualitative confirmation of pesticide components. Quantitative analysis using the standard curve method accurately obtains pollutant concentrations, and dual detection methods significantly reduce the risk of missed detection, providing a scientific basis for subsequent targeted treatment. The screen is installed at the connection between the water outlet of the regulating tank and the delivery pipeline, and the filter is connected in series to the downstream pipeline to form a continuous filtration link; after filtration, it directly enters the detection link to reduce changes in water quality during transmission, ensure that the test data truly reflects the characteristics of the filtered wastewater, and improve the continuity of the entire pretreatment process. Impurities are removed in advance through two-stage filtration to avoid blockage of subsequent detection instrument pipelines; the backwash procedure promptly restores filtration efficiency to prevent abnormal system pressure due to filter membrane blockage; accurate pollutant identification provides a dosage reference for subsequent degradation processes to avoid excessive or insufficient reagents, ensuring treatment effects while saving costs.

[0096] Degradation of organic matter based on identified pollution components, including:

[0097] Automatically match the preset degradation solution library according to the type and concentration of pollutants in the wastewater, where the degradation solution library is retrieved from the database;

[0098] Targeted degradation of pollutants is carried out according to matching degradation schemes, including oxidative degradation, photocatalytic degradation and bio-enhanced degradation;

[0099] Among them, oxidation degradation is for wastewater containing chlorinated organic pollutants, and Fenton oxidation method is used for degradation; photocatalytic degradation is for wastewater containing triazines, and ultraviolet photocatalytic reactor is used for degradation; ultraviolet photocatalytic reactor is for wastewater containing amide pesticides, and biological fluidized bed process is used for degradation;

[0100] Automatically collect key parameters of the degradation process during targeted degradation;

[0101] Among them, the key parameters are pollutant concentration, wastewater flow and treatment volume, as well as pH value, reagent concentration ratio, reaction time, stirring speed and reaction temperature in oxidative degradation; UV parameters, catalyst parameters, pH value and reaction temperature in photocatalytic degradation; microbial environmental parameters, biomass parameters, nutrient ratio, hydraulic retention time and redox potential in bio-enhanced degradation;

[0102] Compare the collected key parameters with the preset parameter thresholds, and adjust the degradation parameters of the targeted degradation process according to the comparison results;

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

[0104] Specifically, relying on the results of the previous pollution component identification, the degradation solution library is automatically matched, and for wastewater containing different pollutants such as chlorinated organics, triazines, amides, etc., exclusive processes such as Fenton oxidation, ultraviolet photocatalysis, and biological fluidized bed are used respectively to avoid the low efficiency of traditional single degradation methods in treating complex pesticide wastewater, greatly improve the targeted degradation, ensure the efficient decomposition of various pollutants, and collect basic parameters such as pollutant concentration and flow in real time, as well as exclusive key parameters of different degradation processes, such as the agent ratio of Fenton oxidation, ultraviolet parameters of photocatalysis, and microbial environmental parameters of biodegradation, to achieve full-dimensional monitoring of the degradation process and provide data support for precise regulation. By comparing the collected key parameters with the preset thresholds, the degradation parameters are dynamically adjusted, such as real-time correction of pH value and reagent ratio in Fenton reaction, optimization of UV intensity during photocatalysis, and regulation of nutrient ratio in biodegradation, etc., to ensure that the reaction is always in the optimal state and avoid the degradation efficiency drop due to water quality fluctuations. Oxidation, photocatalysis, and bio-enhanced degradation processes are combined as needed, which not only plays the role of chemical oxidation in the rapid decomposition of difficult-to-degrade substances, but also utilizes the economy and environmental protection of biological treatment to form complementary advantages, while ensuring the degradation effect and reducing the treatment cost. The parameter collection, comparison, and adjustment of the entire process form a closed-loop control, reduce manual intervention errors, and ensure stable treatment effects. At the same time, precise control of parameters such as reaction time and hydraulic retention time can achieve dynamic matching of treatment volume and influent load, adapt to wastewater flow fluctuations, and ensure continuous and stable operation of the system. The chart of organic matter degradation is as follows:

[0105] Degradation method Key parameters Parameter threshold range Oxidative degradation pH 2.5-3.5 Drug concentration ratio 1:5-1:10 Reaction time 60-90 minutes stirring speed 150-200r / min Reaction temperature 20-35℃ Photocatalytic degradation UV wavelength 254-365nm Catalyst dosage 0.5-2g / L pH 3.0-9.0 Reaction temperature 25-40℃ Bio-enhanced degradation dissolved oxygen 2-4 mg / L biomass 3000-5000mg / L Nutritional ratio 100:5:1 Hydraulic retention time 4-8 hours Redox potential -100-100mV

[0106] In order to solve the problems of high residual toxicity and complex composition of organic matter after degradation in existing technologies; to deal with the problems of poor adaptability of detoxification methods and lag in parameter control; to solve the problems of low flocculation and sedimentation efficiency, untimely sludge treatment and unstable inclined tube sedimentation effect, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions:

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

[0108] After the organic matter in the wastewater is degraded, it is transported to the buffer homogenization tank through the conveying pipeline. The buffer homogenization 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 is that the wastewater is pumped into the ozone contact tower by a lifting pump, and the gas output of the ozone generator is dynamically adjusted according to the wastewater flow rate. In addition, during the reaction process, the online ozone concentration monitor tracks the ozone content in the tail gas in real time; electrochemical oxidation detoxification is carried out using a three-dimensional electrode electrochemical reactor for detoxification; activated carbon adsorption detoxification is that the wastewater after oxidation treatment enters a fixed-bed activated carbon adsorption column, which is filled with granular activated carbon, and the granular activated carbon detoxifies the wastewater;

[0111] When detoxifying wastewater, key parameters of the detoxification process are automatically collected;

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

[0113] Finally, the detoxification treatment of wastewater is completed.

[0114] Specifically, the detoxification method is determined by analyzing key wastewater parameters in a buffered homogenization tank. Ozone oxidation, electrochemical oxidation, and activated carbon adsorption form a complementary system: Ozone oxidation dynamically adjusts the generator gas output to match the wastewater flow rate, efficiently breaking down residual toxic small molecules. Three-dimensional electrode electrochemical oxidation utilizes its strong oxidizing properties to break down complex toxic structures. Activated carbon adsorption acts as a terminal safeguard, further intercepting escaping pollutants. The three-stage process precisely targets different toxicity characteristics, achieving a 20%-30% improvement in removal efficiency compared to a single detoxification method. An online ozone concentration monitor tracks exhaust gas levels in real time, preventing secondary pollution from excessive ozone and ensuring a sufficient reaction. Monitoring the inlet and outlet pressures of the activated carbon column provides timely warnings of adsorption saturation. A mechanism that compares key parameters against preset thresholds dynamically adjusts ozone dosage and electrochemical cell voltage, ensuring optimal detoxification conditions at all times and minimizing operational errors. Dynamic ozone oxidation volume adjustment reduces energy waste. Electrochemical oxidation utilizes three-dimensional electrodes to improve current efficiency and reduce power consumption. Activated carbon adsorption provides advanced treatment, extending replacement cycles. The three-stage process operates in tandem, ensuring effluent toxicity meets standards while reducing operating costs by approximately 15% compared to traditional processes. Real-time monitoring of ozone levels in the exhaust gas allows for timely activation of the exhaust gas treatment device, minimizing personnel exposure. Parameter adjustments to abnormal activated carbon column pressure prevent system failures caused by column blockage. Parameter monitoring and dynamic adjustment throughout the entire process provide multiple safeguards for continuous and stable operation, laying the foundation for safe water quality in subsequent flocculation and sedimentation processes.

[0115] The wastewater after deep detoxification is subjected to flocculation and sedimentation treatment, including:

[0116] The detoxified wastewater is transported to the flocculation reaction tank through a delivery pipe. The monitor 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 according to the key parameters obtained by the monitor. The pH adjustment is to determine whether to start the acid-base adjustment device for adjustment according to the monitored pH value;

[0118] After pH adjustment is completed, the wastewater in the flocculation reaction tank is stirred, and then an inorganic flocculant and an organic coagulant aid are added. The inorganic flocculant is polyaluminium chloride, and the basic dosage is 50-100 mg / L; the organic coagulant is polyacrylamide, and the dosage is 1 / 50-1 / 100 of PAC;

[0119] The wastewater after adding inorganic flocculants and organic coagulants flows into the sedimentation tank, wherein a rectifier plate is set at the front end of the sedimentation tank;

[0120] As wastewater settles in the sedimentation tank, turbidity sensors installed at different depths in the wastewater are used to monitor the clarity of the wastewater in real time;

[0121] At the same time, a conical mud hopper is set at the bottom of the sedimentation tank, and the sludge thickness is monitored in real time through a sludge concentration meter. When the mud layer thickness reaches 0.8m, the mud discharge valve is automatically opened to discharge the mud;

[0122] The wastewater after the sludge discharge operation is used as wastewater after flocculation and sedimentation treatment.

[0123] Specifically, the flocculation reaction tank uses a monitor to track turbidity, pH value and suspended solids concentration in real time, and combines with an acid-base adjustment device to achieve dynamic pH control, providing a suitable chemical environment for the flocculant to function, avoiding the decline in flocculation efficiency due to pH deviation, and 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 PAC. The two synergistically enhance the flocculation effect and accelerate the aggregation of colloidal particles. The dosage of the agent is linked to the water quality parameters to reduce the waste of agents caused by blind addition and reduce treatment costs. A rectifier is set at the front end of the sedimentation tank to eliminate water The flow disturbance makes the wastewater enter the sedimentation area evenly; the turbidity sensors at different depths monitor the clarity in real time, can accurately judge the sedimentation effect, provide a basis for subsequent process adjustments, and improve the solid-liquid separation efficiency. The conical mud bucket cooperates with the sludge concentration meter to monitor the mud layer thickness in real time. When it reaches 0.8m, the mud discharge valve is automatically opened to avoid sludge accumulation affecting the sedimentation space, and at the same time prevent the waste of water resources caused by too frequent mud discharge, ensuring the long-term stable operation of the sedimentation tank. The detoxified wastewater directly enters the flocculation reaction tank, and after adjustment, dosing and sedimentation, a complete treatment chain is formed. The parameter monitoring of each link is linked with the equipment operation to reduce manual intervention, realize the seamless connection from deep detoxification to flocculation sedimentation, and lay a good foundation for subsequent inclined tube sedimentation.

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

[0125] The wastewater after flocculation and sedimentation treatment in the sedimentation tank is transported to the inclined tube sedimentation tank through a delivery pipe;

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

[0127] Among them, 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 pipe; and a liquid level meter installed in the clean water area;

[0128] Regulate the wastewater in the inclined tube sedimentation tank according to the operating status of the sensor;

[0129] After regulation, the sludge sliding down the inclined tube is collected in the conical mud collecting hopper at the bottom of the inclined tube sedimentation tank. A sludge concentration sensor is installed at the bottom of the mud collecting hopper.

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

[0131] Finally, the wastewater after sludge treatment is used as wastewater after inclined tube sedimentation.

[0132] Specifically, by installing a pressure sensor at the end of the water distribution area, a turbidity probe in the middle of the inclined pipe, and a liquid level gauge in the clear water area, real-time monitoring of water flow distribution, sedimentation effect, and water level can be achieved. Multi-position sensors work together to capture system operation details, promptly detecting abnormalities such as uneven water distribution and inclined pipe blockage, providing data support for precise control and preventing local sedimentation failure from affecting the overall treatment effect. Dynamic control of operating status based on sensor feedback can optimize the residence time and distribution uniformity of water flow in the inclined pipe, fully utilizing the "shallow sedimentation" advantage of the inclined pipe sedimentation tank, significantly shortening the particle settling distance, and improving solid-liquid separation efficiency. Compared with traditional horizontal flow sedimentation tanks, the treatment capacity is increased by 2-3 times, and the effluent turbidity is lower. The sludge concentration sensor at the bottom of the sludge hopper accurately monitors the moisture content. When it drops below 95%, intermittent sludge discharge is initiated, which not only avoids the increase in subsequent treatment load caused by excessive sludge moisture content, but also prevents water waste caused by excessive sludge discharge. Gravity flow discharges into the sludge thickening tank and combines it with previous sludge treatment, simplifying the sludge disposal process and reducing transportation costs. Inclined tube sedimentation takes over the flocculation and sedimentation process. Through precise status monitoring and regulation, it ensures stable effluent quality and provides high-quality feed water for subsequent intelligent adsorption and membrane filtration. Simultaneously, combined sludge treatment reduces duplication of sludge treatment units, improving the integration and economic efficiency of the overall process. The use of sophisticated monitoring equipment such as pressure sensors and turbidity probes, combined with the intermittent operation of pneumatic sludge discharge valves, reduces equipment energy consumption and operational maintenance. Gravity flow sludge discharge requires no additional power, further saving operating costs and making it suitable for long-term continuous operation.

[0133] In order to solve the problems in existing technologies such as insufficient targeting of adsorption and membrane filtration, low pH adjustment accuracy, delayed monitoring feedback, lax control of key parameters, high risk of unqualified water discharge, and large errors in manual intervention, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions:

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

[0135] The wastewater after the inclined tube sedimentation is transported to the intelligent adsorption tower through a delivery pipe. The intelligent adsorption tower adopts a bottom-in and top-out flow mode. In addition, an online UV 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, which include the molecular weight of pollutants and the colloid content. The membrane type includes ultrafiltration membrane, nanofiltration membrane or a combination of ultrafiltration membrane and nanofiltration membrane;

[0137] The wastewater is filtered through an ultrafiltration membrane, a 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 water tank, and a multi-parameter monitor is installed in the filter water tank, including pH detection, turbidity detection and chemical oxygen demand detection;

[0139] Determine whether the wastewater in the filter water tank is qualified based on the monitoring results of the multi-parameter monitor;

[0140] If the quality is unqualified, the reflux valve will be automatically opened to transport the unqualified wastewater to the front end of the intelligent adsorption tower for reprocessing.

[0141] Specifically, the intelligent adsorption tower adopts a bottom-in and top-out flow pattern to improve the contact efficiency between pollutants and adsorbents; the online ultraviolet spectrophotometer monitors the outlet pollutant concentration in real time, and can dynamically judge the adsorption saturation state, providing an accurate basis for adsorbent replacement or regeneration, avoiding resource waste caused by excessive adsorption or insufficient adsorption affecting the treatment effect. According to water quality characteristics such as the molecular weight of wastewater pollutants and colloid content, ultrafiltration membranes, nanofiltration membranes or combined membranes are flexibly selected: ultrafiltration membranes efficiently intercept colloids and large molecular impurities, nanofiltration membranes specifically remove small molecular pollutants, and combined membranes achieve step-by-step purification. Compared with single membrane filtration, it has stronger adaptability to complex water quality and the pollutant removal rate is increased by 15%-20%. The filter water tank is equipped with a multi-parameter monitor to simultaneously detect key indicators such as pH value, turbidity, chemical oxygen demand, etc. to comprehensively evaluate the effluent quality. The monitoring results are directly linked to the reflux mechanism, ensuring that unqualified wastewater is immediately returned to the front end of the intelligent adsorption tower for re-treatment, forming a closed-loop control of "treatment-monitoring-reflux", preventing unqualified wastewater from entering the subsequent links. The intelligent adsorption tower is closely connected with the membrane filtration pretreatment tank. Adsorption pretreatment reduces the membrane filtration load and extends the service life of the membrane component; membrane filtration deeply purifies and adsorbs residual trace pollutants. The two complement each other's advantages to improve overall treatment efficiency. The bottom-in and top-out flow design and dynamic selection of membrane types further optimize the water flow state and purification path. Accurate adsorption endpoint monitoring reduces adsorbent consumption, and targeted selection of membrane types reduces filtration energy consumption; unqualified water reflux treatment avoids resource waste and improves water resource utilization. Intelligent operation of the entire process reduces manual intervention and operation and maintenance costs, while ensuring stable treatment results and laying the foundation for high-quality water quality for subsequent pH adjustment.

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

[0143] The qualified wastewater in the filtered water tank is transported to the pH intelligent adjustment tank through the transmission pipeline;

[0144] Among them, an acid and alkali agent storage tank is set in the pH intelligent adjustment pool. The acid agent is 30% sulfuric acid solution and the alkali agent is 20% sodium hydroxide solution. A liquid level sensor is installed in the tank. When the liquid level is lower than 20%, the drug replenishment alarm is triggered.

[0145] An online pH sensor is installed in the pH intelligent adjustment tank, and the pH sensor collects pH data of the wastewater every 10 seconds;

[0146] The dosage of acid and alkali reagents is determined based on the results of the collected pH data. In addition, during the addition of acid and alkali reagents, the agitator in the pH intelligent regulating tank performs stirring operation;

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

[0148] Specifically, 30% sulfuric acid solution and 20% sodium hydroxide solution are selected as acid-base regulators, which are highly targeted, have a fast reaction rate, and can effectively neutralize the acid-base deviation of wastewater; the liquid level sensor monitors the reagent reserves in real time, and triggers the replenishment alarm when it is lower than 20%, avoiding adjustment interruption caused by insufficient reagents and ensuring continuous operation. The online pH sensor collects data every 10 seconds, which is much higher than the traditional manual detection frequency. It can capture subtle fluctuations in the pH value of water quality in real time, provide data support for accurate dosing, avoid excessive or insufficient adjustment caused by monitoring lag, and dynamically calculate the reagent dosage based on real-time pH data to achieve "on-demand replenishment" and reduce reagent waste; the agitator continues to operate during the dosing process, Accelerate the mixing of chemicals and wastewater, ensure uniform and thorough neutralization reaction, improve pH adjustment accuracy, and stabilize the pH value of the effluent in the target range. The entire process does not require manual intervention. From data collection, measurement judgment to chemical addition, all are completed automatically by the system, reducing human operation errors. The drug replenishment alarm mechanism reduces the frequency of manual inspections and significantly saves labor costs. It is suitable for large-scale continuous wastewater treatment scenarios. Through high-frequency monitoring and dynamic adjustment, closed-loop control is formed, which can quickly respond to water quality fluctuations, ensure the stability of the effluent pH value, and provide standardized water quality samples for subsequent intelligent monitoring links. The automated management of acid and alkali chemical storage and addition also reduces the safety risk of manual exposure to hazardous chemicals and improves operational safety.

[0149] Finally, the wastewater after the pH value is intelligently adjusted is intelligently monitored and feedback is provided, including:

[0150] The wastewater after the pH value is intelligently adjusted flows into the steady flow area in the pH intelligent adjustment tank, wherein the steady flow area is at the end of the pH intelligent adjustment tank;

[0151] A spare pH sensor is installed in the steady flow area to conduct secondary monitoring of the wastewater;

[0152] If the pH value is stable between 6.8-7.2 for 2 consecutive minutes, and the difference between the two monitoring data is ≤0.1pH unit, the adjustment is considered qualified;

[0153] If the secondary monitored pH value deviates from the target range, the reflux pump at the bottom of the steady flow area will automatically start to send 30% of the wastewater back to the front end of the pH intelligent adjustment tank for readjustment, and automatically correct the dosage of acid and alkali reagents at the same time;

[0154] The wastewater that is judged to be qualified for regulation is transported to a qualified water flow pool, and the sensors in the qualified water flow pool monitor key parameters of the qualified wastewater;

[0155] Among them, key parameters include basic water quality parameters, pollutant residue parameters, specific pesticide component parameters and safety index parameters.

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

[0157] Specifically, a spare pH sensor is installed in the steady flow area for secondary monitoring, and the qualified standard is set as a pH value that is stable at 6.8-7.2 for 2 consecutive minutes and the difference between the two data is ≤0.1pH unit. Double verification avoids misjudgment caused by single monitoring errors, ensures that the pH value of the effluent meets the standard accurately, and provides a reliable water quality basis for subsequent discharge or reuse. When the secondary monitored pH value deviates from the target range, the reflux pump is automatically started to send 30% of the wastewater back to the front end of the equalization tank for re-treatment, and at the same time corrects the dosage of acid and alkali reagents to form a closed-loop adjustment of "monitoring-judgment-reflux-correction", which can quickly compensate for the adjustment deviation and greatly reduce the risk of unqualified water discharge. The sensors in the qualified water flow pool monitor the key parameters of the qualified wastewater, and the data is transmitted to the display terminal in real time to achieve full visual traceability of the treatment results. Managers can intuitively understand the water quality status, provide data support for process optimization, and improve management efficiency. The design of the steady flow zone reduces the impact of water flow disturbances on monitoring, and the backup sensor reduces the risk of single equipment failure. The backflow ratio is controlled at 30%, which not only ensures the re-treatment effect, but also avoids the sudden increase in system load caused by full backflow, balancing treatment efficiency and stability. From secondary monitoring, qualification judgment to backflow correction, the entire process does not require manual intervention, reducing human operation errors. Real-time data display and abnormal warning functions reduce the intensity of manual inspections, which is suitable for large-scale continuous wastewater treatment scenarios, and significantly saves operation and maintenance costs while ensuring treatment effects.

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

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

Claims

1. An intelligent continuous pretreatment process for herbicide pesticide wastewater, characterized in that: include: First, wastewater is collected in real time, and the collected wastewater is intelligently regulated and transported; The transported wastewater is preliminarily filtered and the pollutant components of the filtered wastewater are identified; organic matter is degraded according to the identified pollutants; the wastewater after organic matter degradation is deeply detoxified; 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; finally, the wastewater after intelligent pH adjustment is intelligently monitored and feedback is provided.

2. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 1, characterized in that: Collect wastewater in real time and intelligently regulate and transport the collected wastewater, including: Before collecting wastewater in real time, collection points are set up at the discharge nodes, including the reactor drain outlet of the production workshop, the raw material cleaning wastewater outlet, the storage tank flushing wastewater outlet and the workshop total drainage collection outlet; An automatic sampler is installed at each collection point to collect wastewater. During the collection process, monitoring sensors are used to monitor the key parameters of the collected water samples in real time. The monitoring sensors include pH sensors, turbidity meters, total organic carbon detectors, and temperature sensors. The collected wastewater is transported to the regulating tank through a delivery pipeline, wherein an electromagnetic flowmeter is installed on the delivery pipeline to monitor the wastewater flow in real time and adjust the opening of the water inlet valve according to the monitoring results; Finally, the transportation and regulation of wastewater are completed.

3. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 2, characterized in that: The transported wastewater is preliminarily filtered and the pollutant components of the filtered wastewater are identified, including: The initial filtration adopts a combination of grid and filter filtration. The grid is an automatically rotating stainless steel grid with a bar spacing of 1mm, which is installed at the connection between the outlet of the regulating tank and the delivery pipeline. The filter has a built-in polypropylene pleated filter membrane and is connected in series to the delivery pipeline downstream of the grid. Before the wastewater is transported to the regulating tank through the conveying pipeline, it first enters the automatic rotating screen. The screen motor runs continuously at a speed of 5r / min. The impurities intercepted by the screen surface are removed to the collection tank by the scraper as it rotates; The wastewater passing through the screen flows into the filter. The filter inlet pressure is maintained at 0.2-0.3MPa. The inlet and outlet pressure difference is monitored in real time by a differential pressure transmitter. When the difference exceeds 0.1MPa, the automatic backwash program is triggered. After the automatic backwash program is triggered, the water inlet valve is closed, the backwash pump is turned on, and the treated clean water is used to backwash the filter membrane. After the flushing is completed, normal filtration is resumed; The filtered wastewater first flows into a buffer water tank, where it undergoes multi-dimensional testing. This involves scanning water samples using a portable gas chromatography-mass spectrometer and comparing them against 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 is used for auxiliary screening. The detected pollutants are quantitatively analyzed using the standard curve method, and the types and concentration data of pollutants in the wastewater are obtained after quantitative analysis.

4. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 3, characterized in that: Degradation of organic matter based on identified pollutants, including: Automatically match the preset degradation solution library according to the type and concentration of pollutants in the wastewater, where the degradation solution library is retrieved from the database; Targeted degradation of pollutants is carried out according to matching degradation schemes, including oxidative degradation, photocatalytic degradation and bio-enhanced degradation; Among them, oxidation degradation is for wastewater containing chlorinated organic pollutants, and Fenton oxidation method is used for degradation; photocatalytic degradation is for wastewater containing triazines, and ultraviolet photocatalytic reactor is used for degradation; ultraviolet photocatalytic reactor is for wastewater containing amide pesticides, and biological fluidized bed process is used for degradation; Automatically collect key parameters of the degradation process during targeted degradation; Among them, the key parameters are pollutant concentration, wastewater flow and treatment volume, as well as pH value, reagent concentration ratio, reaction time, stirring speed and reaction temperature in oxidative degradation; UV parameters, catalyst parameters, pH value and reaction temperature in photocatalytic degradation; microbial environmental parameters, biomass parameters, nutrient ratio, hydraulic retention time and redox potential in bio-enhanced degradation; Compare the collected key parameters with the preset parameter thresholds, and adjust the degradation parameters of the targeted degradation process according to the comparison results; Ultimately, the degradation of organic matter in wastewater is completed.

5. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 4, characterized in that: Deep detoxification of wastewater after organic matter degradation, including: After the organic matter in the wastewater is degraded, it is transported to the buffer homogenization tank through the conveying pipeline. The buffer homogenization 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 is that the wastewater is pumped into the ozone contact tower by a lifting pump, and the gas output of the ozone generator is dynamically adjusted according to the wastewater flow rate. In addition, during the reaction process, the online ozone concentration monitor tracks the ozone content in the tail gas in real time; electrochemical oxidation detoxification is carried out using a three-dimensional electrode electrochemical reactor for detoxification; activated carbon adsorption detoxification is that the wastewater after oxidation treatment enters a fixed-bed activated carbon adsorption column, which is filled with granular activated carbon, and the granular activated carbon detoxifies the wastewater; When detoxifying wastewater, key parameters of the detoxification process are automatically collected; The key parameters include oxygen dosage, electrochemical cell voltage and activated carbon column inlet and outlet pressures. The collected key parameters are compared with the preset parameter thresholds, and the detoxification parameters are adjusted according to the comparison results. Finally, the detoxification treatment of wastewater is completed.

6. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 5, characterized in that: The wastewater after deep detoxification is subjected to flocculation and sedimentation treatment, including: The detoxified wastewater is transported to the flocculation reaction tank through a delivery pipe. The monitor 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 according to the key parameters obtained by the monitor. The pH adjustment is to determine whether to start the acid-base adjustment device for adjustment according to the monitored pH value; After pH adjustment is completed, the wastewater in the flocculation reaction tank is stirred, and then an inorganic flocculant and an organic coagulant aid are added. The inorganic flocculant is polyaluminium chloride, and the basic dosage is 50-100 mg / L; the organic coagulant is polyacrylamide, and the dosage is 1 / 50-1 / 100 of PAC; The wastewater after adding inorganic flocculants and organic coagulants flows into the sedimentation tank, wherein a rectifier plate is set at the front end of the sedimentation tank; As wastewater settles in the sedimentation tank, turbidity sensors installed at different depths in the wastewater are used to monitor the clarity of the wastewater in real time; At the same time, a conical mud hopper is set at the bottom of the sedimentation tank, and the sludge thickness is monitored in real time through a sludge concentration meter. When the mud layer thickness reaches 0.8m, the mud discharge valve is automatically opened to discharge the mud; The wastewater after the sludge discharge operation is used as wastewater after flocculation and sedimentation treatment.

7. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 6, characterized in that: The wastewater after flocculation and sedimentation treatment is subjected to inclined tube sedimentation, including: The wastewater after flocculation and sedimentation treatment in the sedimentation tank is transported to the inclined tube sedimentation tank through a delivery pipe; After the wastewater enters the inclined tube sedimentation tank, the operating status of each sensor is monitored in real time through sensors installed at different positions in the inclined tube sedimentation tank; Among them, 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 pipe; and a liquid level meter installed in the clean water area; Regulate the wastewater in the inclined tube sedimentation tank according to the operating status of the sensor; After regulation, the sludge sliding down the inclined tube is collected in the conical mud collecting hopper at the bottom of the inclined tube sedimentation tank. A sludge concentration sensor is installed at the bottom of the mud collecting hopper. When the sludge moisture content drops below 95%, the pneumatic sludge discharge valve is opened and intermittent sludge discharge is carried out. The sludge is discharged into the sludge thickening tank by gravity flow and combined with the sludge treated by flocculation and sedimentation. Finally, the wastewater after sludge treatment is used as wastewater after inclined tube sedimentation.

8. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 7, characterized in that: The wastewater after inclined tube sedimentation is subjected to intelligent adsorption and membrane filtration, including: The wastewater after the inclined tube sedimentation is transported to the intelligent adsorption tower through a delivery pipe. The intelligent adsorption tower adopts a bottom-in and top-out flow mode. In addition, an online UV 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, which include the molecular weight of pollutants and the colloid content. The membrane type includes ultrafiltration membrane, nanofiltration membrane or a combination of ultrafiltration membrane and nanofiltration membrane; The wastewater is filtered through an ultrafiltration membrane, a nanofiltration membrane, or a combination of ultrafiltration and nanofiltration membranes in a membrane filtration pretreatment tank. The wastewater after membrane filtration enters the filter water tank, and a multi-parameter monitor is installed in the filter water tank, including pH detection, turbidity detection and chemical oxygen demand detection; Determine whether the wastewater in the filter water tank is qualified based on the monitoring results of the multi-parameter monitor; If the quality is unqualified, the reflux valve will be automatically opened to transport the unqualified wastewater to the front end of the intelligent adsorption tower for reprocessing.

9. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 8, characterized in that: Intelligent pH adjustment of wastewater after intelligent adsorption and membrane filtration, including: The qualified wastewater in the filtered water tank is transported to the pH intelligent adjustment tank through the transmission pipeline; Among them, an acid and alkali agent storage tank is set in the pH intelligent adjustment pool. The acid agent is 30% sulfuric acid solution and the alkali agent is 20% sodium hydroxide solution. A liquid level sensor is installed in the tank. When the liquid level is lower than 20%, the drug replenishment alarm is triggered. An online pH sensor is installed in the pH intelligent adjustment tank, and the pH sensor collects pH data of the wastewater every 10 seconds; The dosage of acid and alkali reagents is determined based on the results of the collected pH data. In addition, during the addition of acid and alkali reagents, the agitator in the pH intelligent regulating tank performs stirring operation; Finally, the intelligent adjustment of the pH value of wastewater is completed.

10. The intelligent continuous pretreatment process for herbicide pesticide wastewater according to claim 9, characterized in that: Finally, the wastewater after the pH value is intelligently adjusted is intelligently monitored and feedback is provided, including: The wastewater after the pH value is intelligently adjusted flows into the steady flow area in the pH intelligent adjustment tank, wherein the steady flow area is at the end of the pH intelligent adjustment tank; A spare pH sensor is installed in the steady flow area to conduct secondary monitoring of the wastewater; If the pH value is stable between 6.8-7.2 for 2 consecutive minutes, and the difference between the two monitoring data is ≤0.1pH unit, the adjustment is considered qualified; If the secondary monitored pH value deviates from the target range, the reflux pump at the bottom of the steady flow area will automatically start to send 30% of the wastewater back to the front end of the pH intelligent adjustment tank for readjustment, and automatically correct the dosage of acid and alkali reagents at the same time; The wastewater that is judged to be qualified for regulation is transported to a qualified water flow pool, and the sensors in the qualified water flow pool monitor key parameters of the qualified wastewater; Among them, key parameters include basic water quality parameters, pollutant residue parameters, specific pesticide component parameters and safety index parameters. At the same time, the monitored data is transmitted to the display terminal in real time for parameter display.

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