Intelligent pH regulating system and steady-state regulating method thereof in esterification wastewater treatment

Abstract

This invention provides an intelligent pH adjustment system and its steady-state adjustment method in esterification wastewater treatment, relating to the field of wastewater treatment. The system includes: a multi-stage adjustment module for configuring and managing the operating parameters of the adjustment tanks corresponding to each adjustment stage in the esterification wastewater treatment process, and coordinating the control of wastewater flow during the treatment process; a pH detection module for collecting the pH values ​​of each adjustment tank during the esterification wastewater treatment process; an intelligent control module for calculating the dosage of the appropriate adjustment agent based on the pH detection data of the corresponding adjustment tank, the target pH range configured by the multi-stage adjustment module, and the information of the appropriate adjustment agent, and generating corresponding dosing instructions; a agent dosing module for storing the adjustment agent and dispensing the corresponding dosage of the appropriate adjustment agent to the corresponding adjustment tank according to the dosing instructions; and a stirring and mixing module for stirring and mixing the adjustment tanks containing the appropriate adjustment agent, thereby achieving precise pH adjustment during the esterification wastewater treatment process.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to an intelligent pH adjustment system and its steady-state adjustment method in esterification wastewater treatment. Background Technology

[0002] Esterification reactions are widely used in the chemical, pharmaceutical, and food industries, generating large amounts of esterification wastewater during the process. This wastewater contains organic acids, alcohols, and other substances, and its pH value is typically unstable. Direct discharge of this wastewater can cause serious environmental pollution: acidic wastewater acidifies rivers, lakes, and other receiving water bodies, disrupting the acid-base balance and buffering system, leading to an imbalance in the aquatic microbial community, affecting the survival and reproduction of aquatic organisms such as fish and plankton, and even causing large-scale mortality, thus damaging the stability of aquatic ecosystems. Alkaline wastewater causes a sharp increase in the pH value of water bodies, similarly inhibiting the physiological activities of aquatic organisms and disrupting the normal operation of the aquatic food chain. Furthermore, wastewater with substandard pH levels can seep into the soil, altering its physical and chemical properties, damaging the activity of soil microorganisms, and reducing soil fertility, thus adversely affecting crop growth. Contaminated crops, through the food chain, can ultimately threaten human health.

[0003] Currently, pH adjustment of esterification wastewater is mostly achieved through manual or semi-automatic methods. Manual methods rely on operator experience for reagent dosing, resulting in low precision, difficulty in maintaining pH stability, and high labor costs and low efficiency. While semi-automatic methods reduce human intervention to some extent, they lack intelligent analysis and dynamic adjustment capabilities. When wastewater quality and flow rates change, they cannot adjust reagent dosages promptly and accurately, easily leading to large pH fluctuations. This significantly increases the risk of illegal discharge due to substandard pH levels, further exacerbating environmental harm. Summary of the Invention

[0004] This invention provides an intelligent pH adjustment system and its steady-state adjustment method in esterification wastewater treatment, to overcome the problems of low precision, poor stability, and easy pH exceeding discharge in existing esterification wastewater pH adjustment methods.

[0005] This invention provides an intelligent pH adjustment system, comprising:

[0006] The multi-stage regulation module is used to configure and manage the operating parameters of the regulation tanks corresponding to each regulation stage in the esterification wastewater treatment process, and to coordinate and control the wastewater flow in the esterification wastewater treatment process.

[0007] The pH detection module is used to collect the pH value of each equalization tank during the esterification wastewater treatment process.

[0008] The intelligent control module is used to receive pH detection data from each equalization tank, calculate the dosage of the appropriate equalization agent based on the pH detection data of the corresponding equalization tank and the target pH range and appropriate equalization agent information configured by the multi-segment equalization module, and generate the corresponding dosage instruction.

[0009] The agent dispensing module is used to store conditioning agents and dispense the appropriate dosage of conditioning agents into the corresponding conditioning tank according to the dispensing instructions;

[0010] The stirring and mixing module is used to stir and mix the conditioning tank into which the appropriate conditioning agent is added.

[0011] Optionally, in an intelligent pH adjustment system, a multi-stage adjustment module includes:

[0012] The data management unit is used to collect and store the pH adjustment setting parameters of the conditioning tank at each conditioning stage;

[0013] The operation management unit is used to record the actual pH adjustment operation data of each equalization tank and generate corresponding operation reports.

[0014] The wastewater flow management unit is used to time the residence time of wastewater in each equalization tank, and to control the inflow and outflow status and flow rhythm of each equalization tank according to the actual pH changes, and to synchronously feed back the actual inflow and outflow data to the intelligent control module.

[0015] The status display unit is used to display the conditioning status of each conditioning tank, the amount of reagent stored, and the dynamic pH changes within the conditioning tank.

[0016] Optionally, in an intelligent pH adjustment system, the pH detection module includes:

[0017] The influent recording unit is used to collect the initial pH value of the influent wastewater in each equalization tank, and simultaneously collect the influent volume of the equalization tank and send it to the reagent dosing module.

[0018] The real-time recording unit is used to dynamically monitor the pH value in the equalization tank according to the corresponding preset detection frequency and generate the corresponding dynamic pH change curve of the equalization tank.

[0019] The effluent recording unit is used to collect and record the pH value of the effluent at each stage of the esterification wastewater treatment process.

[0020] Optionally, in an intelligent pH adjustment system, the intelligent control module includes:

[0021] The data receiving unit is used to receive pH detection data from each conditioning tank and pH conditioning setting parameters for the corresponding conditioning tank pushed by the multi-segment conditioning module.

[0022] The dosage calculation unit is used to calculate the dosage of the appropriate regulating agent for the current regulating tank based on the pH adjustment setting parameters, the influent volume of the current regulating tank, and the pH detection data, by calling the preset agent calculation algorithm corresponding to the current regulating tank.

[0023] The instruction generation unit is used to generate a dispensing instruction based on the adaptive adjustment agent and its corresponding dispensing amount, and send it to the agent dispensing module.

[0024] Optionally, in an intelligent pH adjustment system, the reagent dispensing module includes:

[0025] The instruction parsing unit is used to receive and parse the delivery instructions to obtain drug delivery information;

[0026] The drug storage unit is used to store the regulating drugs in the preset location of the corresponding regulating pool according to the preset identification.

[0027] The metering and dispensing unit is used to determine the current dosage in the regulating tank based on the drug dispensing information, take the drug according to the dosage, and control the valve of the corresponding drug pipeline to open and put the appropriate regulating agent into the current regulating tank.

[0028] The feedback unit is used to monitor the storage level and actual dosage of various regulating agents in real time, and generate feedback information to send to the multi-segment regulating modules.

[0029] Optionally, in an intelligent pH adjustment system, the pH detection module includes: a detection frequency setting unit for setting the pH detection frequency of each adjustment tank, including:

[0030] The data acquisition subunit is used to acquire historical pH adjustment data for each equalization tank and mark the critical points for achieving the target pH and the critical points for the completion of the reaction for each historical pH adjustment data.

[0031] The data processing subunit is used to align the historical pH adjustment data of each adjustment tank based on the type and dosage of the appropriate adjustment agent. Based on the alignment results, the differences in pH achievement time and reaction completion time under the same dosage of the same appropriate adjustment agent are determined.

[0032] Based on the differences in pH target attainment time and reaction completion time, the first time difference matrix and the second time difference matrix are obtained respectively;

[0033] Based on the row and column relationships of each element in the matrix, the error sequence corresponding to each historical pH adjustment data is obtained. Based on the error sequence, the average error of achieving the target and the average error of reaction completion for each historical pH adjustment data are calculated.

[0034] The weighted average of multiple average errors in achieving the target and average errors in completing the reaction corresponding to the first time difference matrix and the second time difference matrix is ​​calculated respectively to obtain the target error in achieving the target and the target error in completing the reaction.

[0035] The frequency setting subunit is used to obtain the target achievement time error range and reaction completion time error range corresponding to each input amount of each adaptive adjustment agent based on the target achievement error and reaction completion error corresponding to different input amounts of each input agent, and generate a setting reference list.

[0036] Based on the setting reference list, the pH detection frequency for the compliance time error range and the reaction completion time error range corresponding to each adjustment tank is set as the first detection frequency, and the pH detection frequency for the remaining time range is set as the second detection frequency.

[0037] Optionally, in an intelligent pH adjustment system, the real-time recording unit includes:

[0038] The time stamping unit is used to determine the minimum pH standard value of the equalization tank based on the target pH range of the equalization tank. When the equalization tank is detected to have reached the minimum pH value, the time point corresponding to the minimum pH value is marked as the standard threshold point, and the pH change of the equalization tank is continuously detected according to the preset detection frequency.

[0039] If the pH value remains unchanged within a preset time period during the continuous detection period, the pH value is taken as the pH value at which the reaction is completed, and the initial time point corresponding to the pH value at which the reaction is completed is taken as the critical point at which the reaction is completed.

[0040] The detection feedback unit is used to send a pH insufficient control feedback command to the intelligent control module if the dynamic pH value in the equalization tank remains unchanged for a preset duration before the detection time reaches the standard time error range. The intelligent control module calculates the increase in the dosage of the appropriate regulating agent based on the actual current pH value and generates the corresponding dosage increase command.

[0041] The effluent feedback subunit is used to generate an effluent feedback command for the equalization tank and send it to the multi-segment equalization module when the preset time point corresponding to the pH value at which the reaction is completed is reached.

[0042] Optionally, in an intelligent pH adjustment system, the effluent recording unit includes:

[0043] The early warning unit is used to obtain the expected pH range of non-pH adjustment links and compare the actual effluent pH value of each non-pH adjustment link with its corresponding expected pH range.

[0044] When the actual effluent pH value is within its corresponding expected pH range, the non-pH adjustment process is deemed to have met the standard.

[0045] Otherwise, the non-pH adjustment process is deemed substandard, and the drainage of the non-pH adjustment process is immediately terminated. Simultaneously, an early warning signal is generated and sent to the control console, and the discharge is recorded.

[0046] Optionally, an intelligent pH adjustment system may also include:

[0047] The material detection module is used to detect the composition of wastewater discharged from each stage, and based on the detection results, determine the pH-affecting components, generate a detection report, and send it to the intelligent control module. Based on the detection report, the module determines the appropriate regulating agent for the corresponding equalization tank.

[0048] This invention provides a steady-state adjustment method for esterification wastewater treatment, wherein the steady-state adjustment method utilizes any one of the intelligent pH adjustment systems described in the invention to treat the esterification wastewater, comprising:

[0049] Configure and manage the operating parameters of the equalization tanks corresponding to each equalization stage in the esterification wastewater treatment process, and coordinate the control of wastewater flow in the esterification wastewater treatment process.

[0050] The pH values ​​of each equalization tank during the esterification wastewater treatment process were collected;

[0051] Receive pH detection data from each equalization tank, calculate the dosage of the appropriate equalization agent based on the pH detection data of the corresponding equalization tank, the target pH range configured by the multi-segment equalization module, and the information of the appropriate equalization agent, and generate the corresponding dosage instruction.

[0052] Store conditioning agents and release the appropriate dosage of conditioning agents into the corresponding conditioning tanks according to the release instructions;

[0053] The conditioning tank containing the appropriate conditioning agent is stirred and mixed.

[0054] Compared with the prior art, the present invention has at least the following beneficial effects:

[0055] This invention utilizes a multi-stage adjustment module to configure and manage the operating parameters of the equalization tanks at each stage of esterification wastewater treatment, and coordinates the control of wastewater flow. This achieves systematic connection between different treatment stages, ensuring the continuity and controllability of the entire process and effectively preventing disruptions in pH adjustment conditions caused by gaps in wastewater treatment. A pH detection module collects real-time pH values ​​from each equalization tank, providing timely, comprehensive, and accurate data for intelligent control. This eliminates detection errors caused by delays in manual or semi-automatic detection, effectively ensuring the targeted and timely nature of pH adjustment. Furthermore, the intelligent control module combines real-time pH data from each equalization tank, a preset target pH range Y, and information on suitable adjusting agents to accurately calculate the agent dosage. This ensures that the pH value remains stable within the target range at each stage, meeting the differentiated pH requirements of different treatment stages of esterification wastewater, while also enabling on-demand agent dosing, reducing agent waste and significantly lowering the cost of esterification wastewater treatment. The reagent dosing module automatically adds the appropriate pH-regulating reagent to the corresponding equalization tank according to the dosing instructions from the intelligent control module. This improves the efficiency of pH-regulating reagent addition while avoiding interference from human error in pH adjustment, effectively improving the accuracy of wastewater pH adjustment. Finally, the mixing module thoroughly stirs the equalization tanks where the reagents are added, ensuring rapid and uniform mixing and reaction between the reagents and wastewater. This effectively improves the efficiency and uniformity of pH adjustment, ensuring the stability of pH adjustment effects in each equalization tank. It also provides stable water quality conditions for subsequent wastewater treatment processes (such as biological treatment and deep purification), significantly reducing the probability of discharging substandard wastewater and thus greatly minimizing the environmental harm caused by wastewater discharge.

[0056] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in this application.

[0057] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0058] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0059] Figure 1 This is a schematic diagram of the structure of an intelligent pH adjustment system;

[0060] Figure 2 This is a schematic diagram of the structure of a multi-segment adjustment module in an intelligent pH adjustment system;

[0061] Figure 3 This is a schematic diagram of the intelligent control module of an intelligent pH adjustment system;

[0062] Figure 4 This is a schematic diagram of the structure of a reagent dispensing module in an intelligent pH adjustment system. Detailed Implementation

[0063] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0064] Example 1:

[0065] This invention provides an intelligent pH adjustment system, such as Figure 1 As shown, it includes:

[0066] The multi-stage regulation module is used to configure and manage the operating parameters of the regulation tanks corresponding to each regulation stage in the esterification wastewater treatment process, and to coordinate and control the wastewater flow in the esterification wastewater treatment process.

[0067] The pH detection module is used to collect the pH value of each equalization tank during the esterification wastewater treatment process.

[0068] The intelligent control module is used to receive pH detection data from each equalization tank, calculate the dosage of the appropriate equalization agent based on the pH detection data of the corresponding equalization tank and the target pH range and appropriate equalization agent information configured by the multi-segment equalization module, and generate the corresponding dosage instruction.

[0069] The agent dispensing module is used to store conditioning agents and dispense the appropriate dosage of conditioning agents into the corresponding conditioning tank according to the dispensing instructions;

[0070] The stirring and mixing module is used to stir and mix the conditioning tank into which the appropriate conditioning agent is added.

[0071] This embodiment includes multiple equalization tanks, each with a different target pH range and wastewater treatment process.

[0072] In this embodiment, the target pH range refers to the pH range set at different stages of esterification wastewater treatment to meet the treatment process requirements of that stage, ensure the subsequent treatment effect, and ensure that the final discharge meets the standards.

[0073] In this embodiment, the information on the appropriate conditioning agents refers to the set of agent-related parameters for pH adjustment that are matched with each conditioning stage of the esterification wastewater treatment. These parameters include: agent type (e.g., acidic agents such as sulfuric acid are suitable for acidic conditioning tanks, and alkaline agents such as sodium hydroxide are suitable for alkaline conditioning tanks), agent concentration, applicable stage (i.e., the corresponding conditioning tank), and reaction characteristics (including the reaction rate between the agent and the wastewater, mixing requirements, etc.).

[0074] In this embodiment, the entire process of esterification reaction wastewater treatment includes:

[0075] First, the esterification wastewater is introduced into the first equalization tank and mixed evenly. Then, it is pumped to an oil separator to remove some of the grease. The effluent from the oil separator enters a flotation unit to remove impurities, and the flotation effluent enters the second equalization tank for pH adjustment. After adjustment, the wastewater enters a micro-electrolysis tower for aerated iron-carbon micro-electrolysis treatment, and then enters a first-stage Fenton reactor for the Fenton reaction. The effluent from the first-stage Fenton reaction enters the third equalization tank for pH adjustment, and then sequentially enters the first coagulation tank and the first flocculation tank for coagulation and sedimentation. The effluent from the reaction enters the first-stage sedimentation tank for sludge-water separation. The effluent from the first-stage sedimentation tank enters the fourth equalization tank for pH adjustment, and then enters the hydrolysis acidification tank and IC reactor for anaerobic digestion treatment. The effluent from the hydrolysis acidification tank sequentially enters the activated sludge tank and the contact oxidation tank for aerobic treatment, and the aerobic treatment effluent enters the second-stage sedimentation tank for sludge sedimentation. The effluent from the second-stage sedimentation tank enters the fifth equalization tank for pH adjustment, and then enters the second-stage Fenton reactor for another Fenton reaction. The effluent from the secondary Fenton reaction enters the sixth equalization tank to adjust the pH, and then sequentially enters the second coagulation tank and the second flocculation tank for coagulation and sedimentation. After the reaction, the effluent enters the tertiary sedimentation tank to achieve mud-water separation. The effluent from the tertiary sedimentation tank enters the clear water tank before being discharged.

[0076] Meanwhile, the odor treatment device is connected to multiple treatment units such as the first equalization tank, the second equalization tank, the micro-electrolysis tower, and the first-stage Fenton reactor. It collects the generated odor and treats it through a spray tower. The wastewater after spraying is returned to the first equalization tank and re-enters the treatment system.

[0077] The beneficial effects of the above technical solution are as follows: This invention, through a multi-stage adjustment module, can configure and manage the operating parameters of the equalization tanks at each stage of esterification wastewater treatment, and coordinately control the wastewater flow. This achieves systematic connection between different treatment stages, ensuring the continuity and controllability of the entire process, and effectively avoiding the disruption of pH adjustment conditions caused by disconnections in wastewater treatment links. The pH detection module collects the pH values ​​of each equalization tank in real time, providing timely, comprehensive, and accurate detection data for intelligent control, eliminating detection errors caused by the lag in manual or semi-automatic detection, and effectively ensuring the targeted and timely nature of pH adjustment. Furthermore, the intelligent control module combines the real-time pH data of each equalization tank, the preset target pH range Y, and the information of suitable adjusting agents to accurately calculate the agent dosage. This ensures that the pH value remains stable within the target range at each stage, meeting the differentiated pH requirements of different treatment stages of esterification wastewater, while also enabling on-demand agent dosing, reducing agent waste, and significantly lowering the cost of esterification reaction wastewater treatment. The reagent dosing module automatically adds the appropriate pH-regulating reagent to the corresponding equalization tank according to the dosing instructions from the intelligent control module. This improves the efficiency of pH-regulating reagent addition while avoiding interference from human error in pH adjustment, effectively improving the accuracy of wastewater pH adjustment. Finally, the mixing module thoroughly stirs the equalization tanks where the reagents are added, ensuring rapid and uniform mixing and reaction between the reagents and wastewater. This effectively improves the efficiency and uniformity of pH adjustment, ensuring the stability of pH adjustment effects in each equalization tank. It also provides stable water quality conditions for subsequent wastewater treatment processes (such as biological treatment and deep purification), significantly reducing the probability of discharging substandard wastewater and thus greatly minimizing the environmental harm caused by wastewater discharge.

[0078] Example 2:

[0079] Based on Example 1, a multi-segment adjustment module, such as Figure 2 As shown, it includes:

[0080] The data management unit is used to collect and store the pH adjustment setting parameters of the conditioning tank at each conditioning stage;

[0081] The operation management unit is used to record the actual pH adjustment operation data of each equalization tank and generate corresponding operation reports.

[0082] The wastewater flow management unit is used to time the residence time of wastewater in each equalization tank, and to control the inflow and outflow status and flow rhythm of each equalization tank according to the actual pH changes, and to synchronously feed back the actual inflow and outflow data to the intelligent control module.

[0083] The status display unit is used to display the conditioning status of each conditioning tank, the amount of reagent stored, and the dynamic pH changes within the conditioning tank.

[0084] In this embodiment, the flow rhythm refers to the dynamic coordination mechanism of wastewater flow between different equalization tanks during the multi-stage pH adjustment process of esterification wastewater. Specifically, it is a comprehensive arrangement of the timing control, sequence planning, and rate adjustment of wastewater inflow and outflow between the equalization tanks.

[0085] The beneficial effects of the above technical solution are as follows: By collecting and storing pH adjustment setting parameters at each adjustment stage, this invention establishes a complete parameter database, solving the problems of scattered parameter records and difficulty in traceability in traditional adjustment methods. This facilitates the analysis of the optimal combination of adjustment parameters under different water quality conditions, providing data support for subsequent precise adjustment and continuously improving the stability and adaptability of pH adjustment. By recording the actual pH adjustment operation data of each adjustment tank and generating operation reports, key operations in the adjustment process (e.g., reagent addition time, dosage adjustment, etc.) are fully traceable, enabling traceability of wastewater pH adjustment operations. This is beneficial for identifying the causes of adjustment anomalies, standardizing operation procedures, reducing the arbitrariness of manual operation, and providing objective basis for process improvement and responsibility determination. Furthermore, by timing the wastewater retention time and dynamically controlling the influent and effluent status and flow rhythm, it ensures that the wastewater has sufficient time to complete the pH adjustment reaction in each adjustment tank. This avoids both insufficient adjustment due to insufficient retention time and wastewater treatment stagnation due to excessive retention time. By displaying the adjustment status, reagent storage, and dynamic pH changes of each equalization tank in real time, the system enables visualized monitoring of the adjustment process. This allows wastewater treatment operators to intuitively grasp the overall operation of the system and promptly identify problems such as insufficient reagents and abnormal pH fluctuations.

[0086] Example 3:

[0087] Based on Example 1, the pH detection module includes:

[0088] The influent recording unit is used to collect the initial pH value of the influent wastewater in each equalization tank, and simultaneously collect the influent volume of the equalization tank and send it to the reagent dosing module.

[0089] The real-time recording unit is used to dynamically monitor the pH value in the equalization tank according to the corresponding preset detection frequency and generate the corresponding dynamic pH change curve of the equalization tank.

[0090] The effluent recording unit is used to collect and record the pH value of the effluent at each stage of the esterification wastewater treatment process.

[0091] The beneficial effects of the above technical solution are as follows: This invention solves the problem of neglecting the correlation between initial water quality and quantity in traditional regulation methods by synchronously collecting the initial pH value and influent volume of wastewater flowing into each regulating tank and sending them to the chemical dosing module. The initial pH value provides a direct basis for the selection of chemical type, while the influent volume provides a key parameter for calculating the chemical dosage (e.g., the chemical dosage needs to be increased accordingly when the water volume increases). The combination of the two makes the initial dosing decision of the chemical dosing module more in line with the actual influent conditions, avoiding over- or under-dosing problems caused by the mismatch between water volume and water quality from the starting point of regulation. Furthermore, the pH value is dynamically monitored at a preset frequency and a change curve is generated, overcoming the limitations of traditional manual sampling or fixed-point testing. The dynamic curve can intuitively reflect the pH value fluctuation trend over time (e.g., whether there is regulation lag, overreaction, or other abnormalities), providing continuous process data for the intelligent control module, enabling it to predict and adjust the chemical dosing strategy in advance based on the trend (e.g., reducing the acid chemical dosage in advance when the pH drops too quickly), significantly improving the real-time performance and stability of pH regulation. The system records the effluent pH value at each wastewater treatment stage (including non-pH adjustment stages and pH adjustment stages), constructing a complete pH quality control chain from "influent → intermediate treatment → final discharge." This facilitates the timely detection of pH adjustment failures at a certain adjustment stage (e.g., effluent exceeding standards in intermediate stages), preventing problems from accumulating to the final discharge stage. The complete effluent record provides data for tracing the causes of adjustment anomalies (e.g., insufficient reaction in a certain equalization tank), while ensuring that the final effluent pH value meets discharge standards. This effectively blocks the environmental harm caused by wastewater with substandard pH from the final stage, enhancing the environmental safety of the wastewater treatment system.

[0092] Example 4:

[0093] Based on Example 1, the intelligent control module, such as Figure 3 As shown, it includes:

[0094] The data receiving unit is used to receive pH detection data from each conditioning tank and pH conditioning setting parameters for the corresponding conditioning tank pushed by the multi-segment conditioning module.

[0095] The dosage calculation unit is used to calculate the dosage of the appropriate regulating agent for the current regulating tank based on the pH adjustment setting parameters, the influent volume of the current regulating tank, and the pH detection data, by calling the preset agent calculation algorithm corresponding to the current regulating tank.

[0096] The instruction generation unit is used to generate a dispensing instruction based on the adaptive adjustment agent and its corresponding dispensing amount, and send it to the agent dispensing module.

[0097] The beneficial effects of the above technical solution are as follows: This invention solves the problem of scattered and weakly correlated data sources in traditional regulation methods by synchronously receiving pH detection data (including but not limited to initial pH, real-time pH, effluent pH, etc.) from each regulating tank and pH regulation setting parameters (e.g., target pH range, suitable reagent information, etc.) pushed by multiple regulation modules. This provides a complete and correlated data source for subsequent dosage calculation, ensuring the comprehensiveness and accuracy of the calculation basis and avoiding regulation decision deviations caused by missing or fragmented data. Subsequently, precise dynamic dosing is achieved through the dosage calculation unit. Based on the current pH regulation setting parameters of the regulating tank, real-time influent flow, and pH detection data, a preset algorithm is invoked to accurately calculate the dosage, overcoming the subjectivity of manual experience estimation and the shortcomings of insufficient response to water volume changes in semi-automatic regulation. This invention effectively improves the accuracy of dosage calculation by combining multiple factors, including dynamic adjustment of water volume (e.g., automatically increasing dosage when influent volume increases sharply) and pH deviation (e.g., increasing dosage gradient when significantly deviating from the target value). This ensures that the pH quickly approaches the target range while avoiding adjustment failures caused by reagent waste or insufficient dosage, significantly reducing the treatment cost and environmental risks of esterification reaction wastewater. Finally, based on the calculated suitable reagent and dosage, standardized dosing instructions are generated and directly sent to the reagent dosing module, replacing the inefficient traditional manual recording and instruction transmission mode. This eliminates information errors (e.g., incorrect dosage, confusion of reagent type) and time lags in manual transmission. The automated generation and transmission of instructions ensure that reagent dosing actions are synchronized with real-time adjustment needs, enabling the system to respond quickly to pH fluctuations and further improving the stability of pH values ​​in each adjustment tank, thus providing a guarantee for the entire wastewater treatment process to meet discharge standards.

[0098] Example 5:

[0099] Based on Example 1, the drug delivery module, such as Figure 4 As shown, it includes:

[0100] The instruction parsing unit is used to receive and parse the delivery instructions to obtain drug delivery information;

[0101] The drug storage unit is used to store the regulating drugs in the preset location of the corresponding regulating pool according to the preset identification.

[0102] The metering and dispensing unit is used to determine the current dosage in the regulating tank based on the drug dispensing information, take the drug according to the dosage, and control the valve of the corresponding drug pipeline to open and put the appropriate regulating agent into the current regulating tank.

[0103] The feedback unit is used to monitor the storage level and actual dosage of various regulating agents in real time, and generate feedback information to send to the multi-segment regulating modules.

[0104] In this embodiment, the identification identifier refers to the preset identification information (e.g., code, label, number, etc.) used to uniquely distinguish different conditioning pools or different types of conditioning agents.

[0105] In this embodiment, the metering and dispensing unit controls the metering equipment to accurately dispense the drug based on the analyzed dosage parameters of the adapted drug. For example, for liquid drugs, the output amount of the drug per unit time is precisely controlled by adjusting the speed or stroke of the metering pump; for solid drugs, the amount of drug falling per unit time is controlled by adjusting the speed or vibration frequency of the screw feeder. During the dispensing process, the built-in sensors of the equipment (such as flow meters and weight sensors) monitor the amount dispensed in real time to ensure that it is consistent with the commanded dosage.

[0106] The beneficial effects of the above technical solution are as follows: This invention analyzes the dosing instructions to determine the type of reagent, dosage, and target adjustment tank waiting information for execution in the adjustment tank, providing accurate action basis for subsequent dosing operations and effectively ensuring the accuracy of pH adjustment. Furthermore, it stores the adjusting reagents in preset locations in each adjustment tank according to preset identification identifiers, breaking the traditional situation of chaotic reagent storage and time-consuming retrieval. This not only facilitates rapid location of the required reagent but also distinguishes reagent types (e.g., high-concentration / low-concentration reagents) through identification, reducing the risk of incorrect retrieval and greatly improving reagent retrieval efficiency, providing a foundation for rapid response to dosing instructions. The metering dosing unit accurately retrieves the reagent based on the analyzed dosing information and controls the pipeline valves for dosing, replacing the crude operation of manual scooping and dosage estimation. This ensures a high degree of consistency between the dosing amount and the calculated value, minimizing reagent waste or adjustment failure caused by manual overdosing. It also automates the pH adjustment reagent dosing process, improving operational efficiency and ensuring synchronization between dosing actions and adjustment needs. Finally, the feedback unit monitors the reagent storage level and actual dosage in real time and feeds it back to the multi-stage adjustment module. When the reagent storage level is lower than the threshold, the feedback information can trigger an early warning to remind the management personnel to replenish the reagent, avoiding pH adjustment interruption due to reagent shortage. Moreover, the feedback on the actual dosage can be compared with the instructions of the intelligent control module, which helps the management personnel to detect abnormalities such as pipeline blockage and metering deviation in a timely manner, and facilitates the management personnel to quickly troubleshoot and repair system problems, ensuring the continuity of pH adjustment throughout the entire wastewater treatment process.

[0107] Example 6:

[0108] Based on Example 1, it includes: a detection frequency setting unit, used to set the pH detection frequency of each conditioning tank, including:

[0109] The data acquisition subunit is used to acquire historical pH adjustment data for each equalization tank and mark the critical points for achieving the target pH and the critical points for the completion of the reaction for each historical pH adjustment data.

[0110] The data processing subunit is used to align the historical pH adjustment data of each adjustment tank based on the type and dosage of the appropriate adjustment agent. Based on the alignment results, the differences in pH achievement time and reaction completion time under the same dosage of the same appropriate adjustment agent are determined.

[0111] Based on the differences in pH target attainment time and reaction completion time, the first time difference matrix and the second time difference matrix are obtained respectively;

[0112] Based on the row and column relationships of each element in the matrix, the error sequence corresponding to each historical pH adjustment data is obtained. Based on the error sequence, the average error of achieving the target and the average error of reaction completion for each historical pH adjustment data are calculated.

[0113] The weighted average of multiple average errors in achieving the target and average errors in completing the reaction corresponding to the first time difference matrix and the second time difference matrix is ​​calculated respectively to obtain the target error in achieving the target and the target error in completing the reaction.

[0114] The frequency setting subunit is used to obtain the target achievement time error range and reaction completion time error range corresponding to each input amount of each adaptive adjustment agent based on the target achievement error and reaction completion error corresponding to different input amounts of each input agent, and generate a setting reference list.

[0115] Based on the setting reference list, the pH detection frequency for the compliance time error range and the reaction completion time error range corresponding to each adjustment tank is set as the first detection frequency, and the pH detection frequency for the remaining time range is set as the second detection frequency.

[0116] In this embodiment, the first time difference matrix refers to a matrix constructed based on the differences in pH attainment time among different historical pH adjustment data under the same adapted adjustment agent and the same dosage. That is, after aligning the historical data, multiple sets of historical adjustment records with the same agent and the same dosage are numbered, and each number matches the row and column number of the first time difference matrix. The elements in the matrix are the pH attainment time differences obtained by comparing the pairs of historical adjustment records. For example, the first 5th row and second 2nd column of the first time difference matrix is ​​the difference between the pH attainment critical time of historical adjustment record number 5 and the pH attainment critical time of historical adjustment record number 5.

[0117] The second time difference matrix is ​​a matrix constructed based on the difference in reaction completion time among different historical pH adjustment data under the same adapted adjusting agent and the same dosage. That is, after aligning the historical data, multiple sets of historical adjustment records with the same agent and the same dosage are selected, and each set of historical adjustment records is numbered (with the same number as the corresponding first time difference matrix). Each number matches the row and column number of the second time difference matrix. The elements in the matrix are the pH target achievement time difference values ​​obtained by comparing the pairwise historical adjustment records. For example, the first 7th row and second 3rd column of the second time difference matrix is ​​the difference between the pH target achievement critical time of historical adjustment record numbered 7 and the reaction completion critical time of historical adjustment record numbered 3.

[0118] The row-column relationship refers to the fact that each row or column in the matrix represents the error between each historical adjustment record with the same row or column number and other historical adjustment records with different numbers. Each row or column is the error sequence corresponding to the historical adjustment record with that number.

[0119] The beneficial effects of the above technical solution are as follows: First, the present invention acquires historical pH adjustment data through a data acquisition subunit and marks the target achievement critical point and the reaction completion critical point, providing a clear benchmark for subsequent analysis of the dynamic process of pH adjustment. This provides a targeted time anchor for subsequent error calculation and frequency setting, avoiding analytical bias caused by unclear node definitions and providing original data support for scientifically setting the detection frequency. Then, the data processing subunit aligns historical data, calculates the time difference matrix and average error, and transforms the pH adjustment process (e.g., target achievement time fluctuation and reaction completion time fluctuation) under different reagent types and dosages into quantifiable error indicators (including target achievement error and reaction completion error), providing an objective and traceable calculation basis for subsequent frequency setting. Then, the frequency setting subunit sets differentiated detection frequencies based on error intervals (including target achievement time error interval and reaction completion time error interval) (using the first detection frequency for critical intervals and the second detection frequency for non-critical intervals), solving the drawbacks of traditional fixed-frequency detection: if the frequency is too high, it will lead to data redundancy and increased equipment wear; if the frequency is too low, it may miss the critical stage of rapid pH change, affecting the adjustment accuracy. This invention ensures accurate capture of critical changes by increasing the detection frequency during the pH threshold / reaction completion interval (e.g., shortening the detection interval to 30s-1min); and by reducing the frequency during non-critical pH intervals (e.g., extending it to 3-5 minutes) to reduce invalid detections and data redundancy. This achieves an optimal balance between detection accuracy and resource consumption while ensuring accurate monitoring of critical pH change stages.

[0120] Example 7:

[0121] Based on Example 3, the real-time recording unit includes:

[0122] The time stamping unit is used to determine the minimum pH standard value of the equalization tank based on the target pH range of the equalization tank. When the equalization tank is detected to have reached the minimum pH value, the time point corresponding to the minimum pH value is marked as the standard threshold point, and the pH change of the equalization tank is continuously detected according to the preset detection frequency.

[0123] If the pH value remains unchanged within a preset time period during the continuous detection period, the pH value is taken as the pH value at which the reaction is completed, and the initial time point corresponding to the pH value at which the reaction is completed is taken as the critical point at which the reaction is completed.

[0124] The detection feedback unit is used to send a pH insufficient control feedback command to the intelligent control module if the dynamic pH value in the equalization tank remains unchanged for a preset duration before the detection time reaches the standard time error range. The intelligent control module calculates the increase in the dosage of the appropriate regulating agent based on the actual current pH value and generates the corresponding dosage increase command.

[0125] The effluent feedback subunit is used to generate an effluent feedback command for the equalization tank and send it to the multi-segment equalization module when the preset time point corresponding to the pH value at which the reaction is completed is reached.

[0126] The beneficial effects of the above technical solution are as follows: This invention uses a time-marking unit to clearly define the minimum pH target value and mark the target threshold, and marks the reaction completion threshold when the pH is stable. This divides the entire adjustment process into clear stages (e.g., non-target stage → target fluctuation stage → stable completion stage), ensuring that the system can specifically monitor pH changes at each stage. Simultaneously, the mechanism based on continuous threshold detection avoids the risk of missing pH rebounds or secondary fluctuations due to detection interruptions. It also provides accurate time coordinates for subsequent feedback control and ensures the traceability and controllability of the adjustment process. Furthermore, if the detection feedback unit detects that the pH value remains unchanged within a preset time period before the target time error range (i.e., pH adjustment stagnates), it immediately sends an insufficient control feedback command to the intelligent control module, triggering a dosing mechanism. This achieves proactive identification and timely intervention in the pH adjustment process. By adding reagent dosage, the pH value of the wastewater in the adjustment tank continues to approach the target range, avoiding problems such as prolonged treatment time and final pH failure due to adjustment stagnation. This significantly improves the efficiency and success rate of pH adjustment in wastewater treatment. Finally, the timing of effluent discharge is strictly controlled through the effluent feedback subunit. An effluent feedback command is generated when the preset time corresponding to the pH value at which the reaction is completed ends. This ensures that wastewater only enters the next stage after the pH has stabilized and the reaction is complete. This solves the problems of premature effluent discharge leading to insufficient reaction or delayed effluent discharge causing tank pressure issues in traditional wastewater flow systems that rely on experience to determine the timing of effluent discharge. Simultaneously, the feedback command is synchronized to the multi-stage adjustment modules, providing precise signals for controlling the flow rhythm and achieving seamless connection from adjustment completion to flow initiation. This ensures the coordinated operation of wastewater in each stage and improves the overall stability and efficiency of the esterification wastewater treatment process. This invention, by accurately marking key nodes, proactively warning of adjustment anomalies, and strictly controlling the timing of effluent discharge, strengthens the process control of single-tank pH adjustment and provides precise signals for the coordinated operation of multi-stage adjustments, further enhancing the reliability and environmental safety of the entire intelligent pH adjustment system.

[0127] Example 8:

[0128] Based on Example 3, the water effluent recording unit includes:

[0129] The early warning unit is used to obtain the expected pH range of non-pH adjustment links and compare the actual effluent pH value of each non-pH adjustment link with its corresponding expected pH range.

[0130] When the actual effluent pH value is within its corresponding expected pH range, the non-pH adjustment process is deemed to have met the standard.

[0131] Otherwise, the non-pH adjustment process is deemed substandard, and the drainage of the non-pH adjustment process is immediately terminated. Simultaneously, an early warning signal is generated and sent to the control console, and the discharge is recorded.

[0132] The beneficial effects of the above technical solution are as follows: This invention solves the problem in traditional systems that only focus on the pH of the equalization tank and ignore pH fluctuations in intermediate treatment stages by specifically setting up pH monitoring for non-pH adjustment stages (e.g., non-dedicated adjustment processes such as biochemical reaction tanks and sedimentation tanks). It can reflect failures in pre-treatment pH adjustments or abnormalities in the process of this stage (e.g., pH deviation caused by abnormal microbial activity in the biochemical tank). By comparing the actual effluent pH value with the expected pH range, it achieves comprehensive monitoring of the pH status throughout the entire process, ensuring water quality stability at each treatment stage. This strengthens the intermediate defense line for final compliant discharge and provides a basis for tracing the source of subsequent pH adjustment failures. When the actual effluent pH value in a non-pH adjustment stage exceeds the expected range, drainage is immediately stopped and wastewater is intercepted to prevent untreated wastewater from directly entering the next stage or being illegally discharged. This cuts off the impact of substandard pH wastewater on subsequent processes (e.g., This invention effectively reduces interference from deep treatment units and potential pollution to water and soil, thereby minimizing the environmental risks of exceeding emission standards and enhancing the system's environmental safety. It simultaneously generates early warning signals and sends them to the control console, enabling real-time notification of abnormal situations and ensuring timely detection of wastewater treatment anomalies. Based on the early warnings, managers can quickly pinpoint the cause of pH anomalies in non-regulation stages (e.g., insufficient dosing in the preceding equalization tank, abnormal process parameters in this stage), and take timely remedial measures (e.g., reviewing equalization tank parameters, adjusting process conditions in this stage), effectively preventing the accumulation and expansion of problems that could lead to increased treatment costs or escalating risks of exceeding emission standards. Furthermore, this invention records emissions of non-compliance situations, establishing a complete abnormal event archive to provide data support for subsequent process optimization (e.g., analyzing high-frequency causes of pH anomalies in non-regulation stages). It also meets the environmental regulatory requirements for full-process traceability of wastewater treatment, ensuring the compliance of the system's operation.

[0133] Example 9:

[0134] Based on Example 1, an intelligent pH adjustment system further includes:

[0135] The material detection module is used to detect the composition of wastewater discharged from each stage, and based on the detection results, determine the pH-affecting components, generate a detection report, and send it to the intelligent control module. Based on the detection report, the module determines the appropriate regulating agent for the corresponding equalization tank.

[0136] The advantages of the above technical solution are as follows: This invention, by detecting the components of wastewater discharged at each stage, accurately identifies key substances affecting pH (including but not limited to specific organic acids, alcohol derivatives, nitrogen / sulfur compounds, etc.), solving the problem of blindly selecting agents based solely on pH values ​​in traditional adjustment methods. For example, if the detection finds that the low pH of the wastewater is mainly caused by recalcitrant carboxylic acids, the intelligent control module can specifically select a suitable buffer alkali agent, avoiding low adjustment efficiency or pH rebound due to mismatch between the agent and pollutant reaction characteristics, fundamentally improving the scientific and accurate nature of agent selection. Furthermore, the substance detection module captures component changes in real time and generates detection reports, enabling the intelligent control module to dynamically adjust the appropriate agent based on the latest pH-affecting components (e.g., from a single acid / alkali to a composite regulator), ensuring stable pH adjustment even when water quality fluctuates. This significantly enhances the system's adaptability to complex and variable water quality, reducing the probability of adjustment failure due to unknown components. This invention uses a substance detection module to accurately identify pH-affecting components, dynamically adapt to water quality changes, support the optimization of the entire process, and accumulate data. This not only improves the accuracy and stability of pH adjustment but also reduces environmental risks caused by complex components at the source, providing a foundation for the efficient treatment of esterification wastewater.

[0137] Example 10:

[0138] This invention provides a steady-state adjustment method for esterification wastewater treatment, wherein the steady-state adjustment method utilizes the aforementioned intelligent pH adjustment system for esterification wastewater treatment, comprising:

[0139] Configure and manage the operating parameters of the equalization tanks corresponding to each equalization stage in the esterification wastewater treatment process, and coordinate the control of wastewater flow in the esterification wastewater treatment process.

[0140] The pH values ​​of each equalization tank during the esterification wastewater treatment process were collected;

[0141] Receive pH detection data from each equalization tank, calculate the dosage of the appropriate equalization agent based on the pH detection data of the corresponding equalization tank, the target pH range configured by the multi-segment equalization module, and the information of the appropriate equalization agent, and generate the corresponding dosage instruction.

[0142] Store conditioning agents and release the appropriate dosage of conditioning agents into the corresponding conditioning tanks according to the release instructions;

[0143] The conditioning tank containing the appropriate conditioning agent is stirred and mixed.

[0144] The beneficial effects of the above technical solution are as follows: This invention, through a multi-stage adjustment module, can configure and manage the operating parameters of the equalization tanks at each stage of esterification wastewater treatment, and coordinately control the wastewater flow. This achieves systematic connection between different treatment stages, ensuring the continuity and controllability of the entire process, and effectively avoiding the occurrence of pH adjustment disorder due to disconnection in wastewater treatment links. The pH detection module collects the pH values ​​of each equalization tank in real time, providing timely, comprehensive, and accurate detection data for intelligent control, eliminating detection errors caused by the lag in manual or semi-automatic detection, and effectively ensuring the targeted and timely nature of pH adjustment. Furthermore, the intelligent control module combines the real-time pH data of each equalization tank, the preset target pH range Y, and the information of suitable adjusting agents to accurately calculate the agent dosage. This ensures that the pH value remains stable within the target range at each stage, meeting the differentiated pH requirements of different treatment stages of esterification wastewater, while also enabling on-demand agent dosing, reducing agent waste, and significantly lowering the cost of esterification reaction wastewater treatment. The reagent dosing module automatically adds the appropriate pH-regulating reagent to the corresponding equalization tank according to the dosing instructions from the intelligent control module. This improves the efficiency of pH-regulating reagent addition while avoiding interference from human error in pH adjustment, effectively improving the accuracy of wastewater pH adjustment. Finally, the mixing module thoroughly stirs the equalization tanks where the reagents are added, ensuring rapid and uniform mixing and reaction between the reagents and wastewater. This effectively improves the efficiency and uniformity of pH adjustment, ensuring the stability of pH adjustment effects in each equalization tank. It also provides stable water quality conditions for subsequent wastewater treatment processes (such as biological treatment and deep purification), significantly reducing the probability of discharging substandard wastewater and thus greatly minimizing the environmental harm caused by wastewater discharge.

[0145] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An intelligent pH adjustment system, characterized in that, include: The multi-stage regulation module is used to configure and manage the operating parameters of the regulation tanks corresponding to each regulation stage in the esterification wastewater treatment process, and to coordinate and control the wastewater flow in the esterification wastewater treatment process. The pH detection module is used to collect the pH value of each equalization tank during the esterification wastewater treatment process. The intelligent control module is used to receive pH detection data from each equalization tank, calculate the dosage of the appropriate equalization agent based on the pH detection data of the corresponding equalization tank and the target pH range and appropriate equalization agent information configured by the multi-segment equalization module, and generate the corresponding dosage instruction. The agent dispensing module is used to store conditioning agents and dispense the appropriate dosage of conditioning agents into the corresponding conditioning tank according to the dispensing instructions; The stirring and mixing module is used to stir and mix the conditioning tank into which the appropriate conditioning agent is added; The pH detection module includes: The influent recording unit is used to collect the initial pH value of the influent wastewater in each equalization tank and simultaneously collect the influent volume of the equalization tank, and send it to the chemical dosing module. The real-time recording unit is used to dynamically monitor the pH value in the equalization tank according to the corresponding preset detection frequency and generate the corresponding dynamic pH change curve of the equalization tank. The effluent recording unit is used to collect and record the pH value of the effluent at each stage of the esterification wastewater treatment process. The pH detection module further includes a real-time recording unit, which includes: The time stamping unit is used to determine the minimum pH standard value of the equalization tank based on the target pH range of the equalization tank. When the equalization tank is detected to have reached the minimum pH value, the time point corresponding to the minimum pH value is marked as the standard threshold point, and the pH change of the equalization tank is continuously detected according to the preset detection frequency. If the pH value remains unchanged within a preset time period during the continuous detection period, the pH value is taken as the pH value at which the reaction is completed, and the initial time point corresponding to the pH value at which the reaction is completed is taken as the critical point at which the reaction is completed. The detection feedback unit is used to send a pH insufficient control feedback command to the intelligent control module if the dynamic pH value in the equalization tank remains unchanged for a preset duration before the detection time reaches the standard time error range. The intelligent control module calculates the increase in the dosage of the appropriate regulating agent based on the current actual pH value and generates the corresponding dosage increase command. The effluent feedback subunit is used to generate an effluent feedback command for the equalization tank and send it to the multi-segment equalization module when the preset time point corresponding to the pH value at which the reaction is completed is reached.

2. The intelligent pH adjustment system according to claim 1, characterized in that, The multi-stage adjustment module includes: The data management unit is used to collect and store the pH adjustment setting parameters of the conditioning tank at each conditioning stage; The operation management unit is used to record the actual pH adjustment operation data of each equalization tank and generate corresponding operation reports. The wastewater flow management unit is used to time the residence time of wastewater in each equalization tank, and to control the inflow and outflow status and flow rhythm of each equalization tank according to the actual pH changes, and to synchronously feed back the actual inflow and outflow data to the intelligent control module. The status display unit is used to display the conditioning status of each conditioning tank, the amount of reagent stored, and the dynamic pH changes within the conditioning tank.

3. The intelligent pH adjustment system according to claim 1, characterized in that, The intelligent control module includes: The data receiving unit is used to receive pH detection data from each conditioning tank and pH conditioning setting parameters for the corresponding conditioning tank pushed by the multi-segment conditioning module. The dosage calculation unit is used to calculate the dosage of the appropriate regulating agent for the current regulating tank based on the pH adjustment setting parameters, the influent volume of the current regulating tank, and the pH detection data, by calling the preset agent calculation algorithm corresponding to the current regulating tank. The instruction generation unit is used to generate a dispensing instruction based on the adaptive adjustment agent and its corresponding dispensing amount, and send it to the agent dispensing module.

4. The intelligent pH adjustment system according to claim 1, characterized in that, The drug delivery module includes: The instruction parsing unit is used to receive and parse the delivery instructions to obtain drug delivery information; The drug storage unit is used to store the regulating drugs in the preset location of the corresponding regulating pool according to the preset identification. The metering and dispensing unit is used to determine the current dosage in the regulating tank based on the drug dispensing information, take the drug according to the dosage, and control the valve of the corresponding drug pipeline to open and put the appropriate regulating agent into the current regulating tank. The feedback unit is used to monitor the storage level and actual dosage of various regulating agents in real time, and generate feedback information to send to the multi-segment regulating module. Among them, the identification mark refers to the preset identification information used to uniquely distinguish different conditioning pools or different types of conditioning agents.

5. The intelligent pH adjustment system according to claim 1, characterized in that, The pH detection module includes: a detection frequency setting unit for setting the pH detection frequency of each equalization tank; the detection frequency setting unit includes: The data acquisition subunit is used to acquire historical pH adjustment data for each equalization tank and mark the critical points for achieving the target pH and the critical points for the completion of the reaction for each historical pH adjustment data. The data processing subunit is used to align the historical pH adjustment data of each adjustment tank based on the type and dosage of the appropriate adjustment agent. Based on the alignment results, the differences in pH achievement time and reaction completion time under the same dosage of the same appropriate adjustment agent are determined. Based on the differences in pH target attainment time and reaction completion time, the first time difference matrix and the second time difference matrix are obtained respectively; Based on the row and column relationships of each element in the matrix, the error sequence corresponding to each historical pH adjustment data is obtained. Based on the error sequence, the average error of achieving the target and the average error of reaction completion for each historical pH adjustment data are calculated. The weighted average of multiple average errors in achieving the target and average errors in completing the reaction corresponding to the first time difference matrix and the second time difference matrix is ​​calculated respectively to obtain the target error in achieving the target and the target error in completing the reaction. The frequency setting subunit is used to obtain the target achievement time error range and reaction completion time error range corresponding to each input amount of each adaptive adjustment agent based on the target achievement error and reaction completion error corresponding to different input amounts of each input agent, and generate a setting reference list. Based on the setting reference list, the pH detection frequency for the compliance time error range and the reaction completion time error range corresponding to each adjustment tank is set as the first detection frequency, and the pH detection frequency for the remaining time range is set as the second detection frequency.

6. The intelligent pH adjustment system according to claim 1, characterized in that, The water discharge recording unit includes: The early warning unit is used to obtain the expected pH range of non-pH adjustment links and compare the actual effluent pH value of each non-pH adjustment link with its corresponding expected pH range. When the actual effluent pH value is within its corresponding expected pH range, the non-pH adjustment process is deemed to have met the standard. Otherwise, the non-pH adjustment process is deemed substandard, and the drainage of the non-pH adjustment process is immediately terminated. Simultaneously, an early warning signal is generated and sent to the control console, and the discharge is recorded.

7. The intelligent pH adjustment system according to claim 1, characterized in that, Also includes: The material detection module is used to detect the composition of wastewater discharged from each stage, and based on the detection results, determine the pH-affecting components, generate a detection report, and send it to the intelligent control module. Based on the detection report, the module determines the appropriate regulating agent for the corresponding equalization tank.

8. A steady-state adjustment method in esterification wastewater treatment, characterized in that, The steady-state adjustment method utilizes the intelligent pH adjustment system described in any one of claims 1-7 to treat esterification wastewater, including: Configure and manage the operating parameters of the equalization tanks corresponding to each equalization stage in the esterification wastewater treatment process, and coordinate the control of wastewater flow in the esterification wastewater treatment process. The pH values ​​of each equalization tank during the esterification wastewater treatment process were collected; Receive pH detection data from each equalization tank, calculate the dosage of the appropriate equalization agent based on the pH detection data of the corresponding equalization tank, the target pH range configured by the multi-segment equalization module, and the information of the appropriate equalization agent, and generate the corresponding dosage instruction. Store conditioning agents and release the appropriate dosage of conditioning agents into the corresponding conditioning tanks according to the release instructions; The conditioning tank containing the appropriate conditioning agent is stirred and mixed.

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