Multi-mode ultrasonic coupling sludge treatment system and control method thereof

Abstract

The invention relates to the technical field of sludge treatment, solves the problem that a single ultrasonic technology lacks targeted treatment and dynamic regulation and control on specific complex working conditions in sludge treatment, and particularly discloses a multi-mode ultrasonic coupling sludge treatment system and a control method thereof. Comprising a sludge pretreatment module, a multi-mode coupling reaction module, a monitoring module, a dynamic regulation and control module, an advanced treatment module and a resource recovery module, the output end of the sludge pretreatment module is connected with the input end of the multi-mode coupling reaction module through a conveying pipeline, and the sludge pretreatment module is used for conveying sludge subjected to primary treatment to the multi-mode coupling reaction module; the sludge treatment control method comprises a sludge pretreatment stage, a multi-mode coupling reaction stage, an advanced treatment stage and a system working condition self-adaptive adjustment stage. The device is used for sludge treatment based on ultrasonic coupling, the sludge treatment working condition can be treated in real time by combining multi-mode reaction treatment and dynamic regulation and control, and the treatment efficiency and the treatment effect are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, and in particular to a multimodal ultrasonic coupled sludge treatment system and its control method. Background Technology

[0002] Multimodality refers to a technological system that integrates two or more physical or chemical mechanisms (such as acoustic, optical, electrical, thermal, magnetic, and chemical catalysis) to create a synergistic effect. Its core logic is to utilize the complementarity of different modes; for example, one mode can overcome material structural barriers, while another enhances reaction efficiency, overcoming limitations that are difficult to overcome with a single technology, ultimately achieving a treatment efficiency of "1+1>2". In the field of environmental engineering, multimodal technology has been gradually applied to scenarios such as advanced wastewater treatment and solid waste degradation, with its core value lying in cost reduction, efficiency improvement, and expansion of functional boundaries.

[0003] The core of ultrasonic sludge treatment is the cavitation effect. Sound waves with frequencies above 16kHz create cavitation bubbles in the sludge. The collapse of these bubbles generates shock waves, high temperatures, and strong shear forces, which can disrupt the sludge floc structure, strip extracellular polymers, and release intracellular organic matter. However, ultrasonic technology alone has limitations in sludge treatment engineering, including high energy consumption, incomplete decontamination, and limited functionality. It also lacks targeted treatment and dynamic control for specific complex operating conditions. Summary of the Invention

[0004] To address the problem that existing single ultrasonic technology lacks targeted treatment and dynamic control for specific complex working conditions in sludge treatment, this invention provides a multimodal ultrasonic coupled sludge treatment system and its control method.

[0005] The technical solution adopted in this invention is:

[0006] A multimodal ultrasonic coupled sludge treatment system includes a sludge pretreatment module, a multimodal coupled reaction module, a monitoring module, a dynamic control module, a deep treatment module, and a resource recovery module;

[0007] The output end of the sludge pretreatment module is connected to the input end of the multimodal coupling reaction module through a conveying pipeline. The sludge pretreatment module is used to convey the pre-treated sludge to the multimodal coupling reaction module.

[0008] The detection terminals of the monitoring module are respectively set on the sludge pretreatment module, the multimodal coupling reaction module and the deep treatment module. The signal output terminal of the monitoring module is connected to the signal input terminal of the dynamic control module through the data transmission line. The monitoring module is used to transmit the monitored sludge parameters to the dynamic control module in real time.

[0009] The control output of the dynamic control module is connected to the control input of the sludge pretreatment module, the multimodal coupled reaction module, the advanced treatment module, and the resource recovery module through control lines. The dynamic control module is used to adjust the operating parameters of each module according to the monitoring parameters.

[0010] The multimodal coupling reaction module has two outputs. One output is connected to the input of the deep treatment module via a pipe, and the other output is connected to the input of the resource recycling module via a pipe. The multimodal coupling reaction module is used to perform coupled reaction treatment of sludge by combining multiple different reaction units with ultrasonic waves.

[0011] Furthermore, the sludge pretreatment module includes a sludge thickening unit, a sludge conditioning unit, and a transfer pump set. The output end of the sludge thickening unit is connected to the input end of the sludge conditioning unit, and the output end of the sludge conditioning unit is connected to the multimodal coupling reaction module through the transfer pump set.

[0012] The sludge thickening unit is used to reduce the moisture content of the initial sludge. The sludge conditioning unit is equipped with a reagent dosing component and a stirring component. The reagent dosing component is used to add inorganic reagents required for conditioning. The conveying pump group includes a variable frequency centrifugal pump, which is used to control the operating frequency through a dynamic control module.

[0013] Furthermore, the multimodal coupling reaction module includes an ultrasonic reaction unit, a microwave-assisted unit, an electrochemical synergistic unit, and a reaction chamber, wherein the ultrasonic reaction unit, the microwave-assisted unit, and the electrochemical synergistic unit are all installed within the reaction chamber;

[0014] The ultrasonic reaction unit includes multiple ultrasonic transducers with independently adjustable output power, which are distributed at the bottom and side walls of the reaction chamber. The microwave auxiliary unit includes a microwave generator and a microwave conduit, which are evenly arranged on the side walls of the reaction chamber. The output power of the microwave generator is adjusted by a dynamic control module. The electrochemical synergistic unit includes an anode plate, a cathode plate, and a proton exchange membrane. The anode plate and cathode plate are respectively arranged parallel to each other on both sides of the reaction chamber. The proton exchange membrane is disposed between the anode plate and the cathode plate, dividing the reaction chamber into an anode region and a cathode region. The anode plate uses a titanium-based coated electrode, and the cathode plate uses a stainless steel electrode. Both the anode plate and the cathode plate are connected to an adjustable voltage power supply.

[0015] Furthermore, the monitoring module includes a sludge particle size monitoring unit, a sludge concentration monitoring unit, a pollutant content monitoring unit, and a reaction environment monitoring unit;

[0016] The sludge particle size monitoring unit has its detection probes inserted into the output pipes of the sludge pretreatment module and the interior of the multimodal coupling reaction module, respectively, to detect the particle size distribution range of the sludge particles in real time. The sludge concentration monitoring unit has its detection ends located in the inlet and outlet pipes of the multimodal coupling reaction module and the input pipe of the advanced treatment module, respectively, to detect the volumetric solids content range of the sludge. The pollutant content monitoring unit has its sampling ends connected to the output pipes of the multimodal coupling reaction module and the advanced treatment module via sampling pumps, respectively, to detect the concentration range of soluble organic matter and heavy metal ions in the sludge. The reaction environment monitoring unit includes a temperature sensor, a pH sensor, and a pressure sensor, all of which are installed in the reaction chamber of the multimodal coupling reaction module to detect the temperature range, pH range, and pressure range within the reaction chamber.

[0017] Furthermore, the dynamic control module includes a data processing unit, a parameter calculation unit, and an execution control unit. The input end of the data processing unit is connected to the signal output end of the intelligent monitoring module, the output end of the data processing unit is connected to the input end of the parameter calculation unit, and the output end of the parameter calculation unit is connected to the input end of the execution control unit.

[0018] The data processing unit is used to filter, reduce noise, and standardize the various parameter data transmitted by the intelligent monitoring module; the parameter calculation unit has a built-in preset parameter matching algorithm and operating condition judgment model, which is used to judge the current sludge treatment operating condition based on the processed monitoring data and calculate the operating parameters that need to be adjusted for each module; the execution control unit includes multiple frequency converters, power regulators, and valve controllers, which are respectively connected to the power equipment, reaction unit, and conveying valve in the system, and are used to convert the calculated operating parameters into control signals to adjust the operating status of the equipment.

[0019] A multimodal ultrasonic coupled sludge treatment control method, based on a multimodal ultrasonic coupled sludge treatment system, includes the following steps:

[0020] S100, sludge pretreatment stage, uses the sludge pretreatment module to perform preliminary treatment of the initial sludge, preparing it for subsequent multimodal coupling reactions;

[0021] S200, the multimodal coupling reaction stage, achieves in-depth breakdown and pollutant degradation of pretreated sludge through the multimodal coupling reaction module, and simultaneously recovers resources. At the same time, it combines intelligent monitoring and dynamic control to achieve real-time adjustment of parameters.

[0022] S300, the deep treatment stage, uses the deep treatment module to dewater the sludge after the multimodal coupling reaction to obtain sludge cake that meets the discharge requirements.

[0023] S400, the system operating condition adaptive adjustment stage, achieves adaptive adjustment of the system through intelligent monitoring and dynamic control for specific complex operating conditions.

[0024] Furthermore, S100 specifically includes the following steps:

[0025] S101, sludge thickening treatment: the initial sludge is transported to the sludge thickening unit of the sludge pretreatment module for thickening treatment. During this process, the sludge concentration monitoring unit of the monitoring module detects the volume solids content of the thickened sludge in real time. When the volume solids content reaches the range of 3%-5%, the dynamic control module controls the sludge thickening unit to stop thickening and transports the thickened sludge to the sludge conditioning unit.

[0026] S102, sludge conditioning treatment: The dynamic control module controls the addition of inorganic conditioning agents by the agent dosing component of the sludge conditioning unit based on the pH value and pollutant content of the concentrated sludge detected by the monitoring module. The dosage is controlled within the range of 0.1g / L-0.5g / L. At the same time, the module controls the operation of the stirring component, and the stirring time is 10min-20min to ensure that the agent and sludge are fully mixed. After conditioning is completed, the dynamic control module controls the delivery pump group to transport the conditioned sludge to the reaction chamber of the multimodal coupling reaction module.

[0027] Furthermore, S200 specifically includes the following steps:

[0028] S201, Initial reaction parameter setting: The dynamic control module sets the initial operating parameters of each unit of the multimodal coupled reaction module based on the volume solids content, particle size distribution and pollutant concentration of the sludge output by the sludge pretreatment module. Among them, the initial output power of the ultrasonic reaction unit is set to 100W-300W, the initial output power of the microwave-assisted unit is set to 300W-600W, and the initial voltage of the electrochemical synergistic unit is set to 0.5V-1.2V.

[0029] S202, multimodal synergistic reaction, activates the ultrasonic reaction unit, microwave auxiliary unit and electrochemical synergistic unit, so that the sludge in the reaction chamber will break down and react under the ultrasonic cavitation effect, microwave thermal effect and electrochemical oxidation-reduction action. During this process, the various monitoring units of the monitoring module work continuously. The sludge particle size monitoring unit detects the particle size distribution of sludge particles every 5min-10min. When the average particle size of sludge particles is detected to drop to the preset range, the signal is transmitted to the dynamic control module.

[0030] S203, Dynamic Adjustment of Reaction Parameters: After receiving the sludge particle size monitoring signal, the dynamic control module, combined with the sludge volume solids content detected by the sludge concentration monitoring unit and the soluble organic matter concentration detected by the pollutant content monitoring unit, adjusts the operating parameters of each reaction unit. If the soluble organic matter concentration is below 1000 mg / L, the output power of the ultrasonic reaction unit is increased to 200W-400W, and the output power of the microwave auxiliary unit is increased to 400W-700W. If the soluble organic matter concentration is above 3000 mg / L, the output power of the ultrasonic reaction unit is reduced to 50W-200W, and the output power of the microwave auxiliary unit is reduced to 200W-500W. Simultaneously, based on the reaction chamber temperature detected by the reaction environment monitoring unit, if the temperature is above 60℃, the output power of the microwave auxiliary unit is reduced; if the temperature is below 30℃, the output power of the microwave auxiliary unit is increased, so that the reaction chamber temperature is maintained within the range of 30℃-60℃.

[0031] Furthermore, the S300 specifically includes the following steps:

[0032] S301, Sludge dewatering preparation: The dynamic control module controls the sludge dewatering unit of the deep treatment module to perform dewatering pretreatment based on the volume solids content of the sludge after the multimodal coupling reaction detected by the monitoring module.

[0033] S302, sludge depressurization treatment, uses a filter press to filter sludge. The dynamic control module adjusts the depressurization pressure based on the pressure value detected by the pressure sensor inside the filter press. The initial pressure is set to 0.3MPa-0.5MPa, and as the depressurization process proceeds, the pressure is gradually increased to 0.6MPa-0.8MPa. The depressurization time lasts for 1.5h-2.5h. During this process, the sludge concentration monitoring unit monitors the solid content of the effluent in real time. If the solid content of the effluent is higher than 0.1%, the depressurization time is extended to complete the depressurization treatment.

[0034] Furthermore, the S400 specifically includes the following steps:

[0035] S401, Complex Operating Condition Identification: The pollutant content monitoring unit of the intelligent monitoring module continuously detects the concentration of heavy metal ions in the sludge. When the concentration of heavy metal ions exceeds the range of 0.5mg / L-2mg / L, or the sludge concentration monitoring unit detects that the sludge viscosity exceeds the range of 50cP-100cP, or the reaction environment monitoring unit detects that the temperature of the reaction chamber is lower than the range of 15℃-20℃, the system is judged to be in a complex operating condition and the operating condition signal is transmitted to the dynamic control module.

[0036] S402, targeted parameter adjustment: After receiving complex operating condition signals, the dynamic control module adjusts the parameters of each module according to different operating condition types. If the condition is one of excessive heavy metals, the voltage of the electrochemical coordinating unit is increased, the reaction time is extended, and the heavy metal chelating agent is added by controlling the reagent addition component. If the condition is one of abnormally high sludge viscosity, the output power of the ultrasonic reaction unit is increased, and a viscosity modifier is added to reduce the sludge viscosity. If the condition is one of low temperature environment, the output power of the microwave auxiliary unit is increased to maintain the temperature of the reaction chamber within the preset range, and the reaction time is extended.

[0037] S403, Processing Effect Verification: After adjusting the parameters, the monitoring module checks the key parameters every 3-5 minutes. If the concentration of heavy metal ions, sludge viscosity, or reaction chamber temperature are within the preset range and remain so for 10-15 minutes, the complex processing condition is deemed to have met the standards. The dynamic control module then restores the control system to normal operating parameters. If the standards are not met, the parameters are adjusted until they are met.

[0038] The beneficial effects of this invention are:

[0039] This invention presents a complete solution through a multi-module interconnected system architecture and a phased control process. The system first utilizes a sludge pretreatment module to initially treat the sludge, eliminating the interference of initial sludge state fluctuations on subsequent treatments and creating stable treatment conditions for the multimodal coupling reaction. The multimodal coupling reaction module abandons the single ultrasonic action mode, combining ultrasound with multiple different reaction units. This not only enhances sludge breakdown through the core effect of ultrasound but also supplements pollutant degradation functions with other reaction units, while simultaneously promoting resource recovery. This solves the problem of single ultrasonic technology having limited functionality and incomplete treatment. Throughout the entire treatment process, the monitoring module continuously captures key information such as the initial state of the sludge in the pretreatment stage, the reaction progress in the coupling reaction stage, and the dewatering effect in the deep treatment stage. The dynamic control module adjusts the operating status of each module based on this real-time data, optimizing parameters in a timely manner for different complex operating conditions, completely overcoming the limitation of single technologies being unable to flexibly adjust according to changes in operating conditions.

[0040] This invention significantly improves the depth of sludge disintegration and the efficiency of pollutant degradation through the synergistic effect of pretreatment and multimodal coupled reaction, combined with real-time optimization of parameters by dynamic control, effectively reducing the energy waste problem commonly found in single ultrasonic technologies. By combining real-time monitoring and dynamic control, the system can proactively adapt to different complex working conditions, avoiding fluctuations in treatment effects due to changes in conditions, and significantly enhancing the system's adaptability. Simultaneously, the integrated setup of the resource recovery module and the deep treatment module not only achieves compliant discharge of sludge cake after treatment but also expands the resource utilization value of the sludge treatment process, breaking the functional boundary that a single technology can only complete sludge treatment. Ultimately, it achieves a comprehensive effect that combines improved treatment efficiency, optimized energy consumption, enhanced adaptability to working conditions, and diversified functions, realizing a shift from passive treatment to multifunctional collaborative proactive optimization of sludge treatment, thus improving the effectiveness and efficiency of sludge treatment. Attached Figure Description

[0041] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] Example 1

[0044] This embodiment is a multimodal ultrasonic coupled sludge treatment system, specifically including a sludge pretreatment module, a multimodal coupled reaction module, a monitoring module, a dynamic control module, a deep treatment module, and a resource recovery module. After the system starts, the sludge pretreatment module first performs preliminary treatment on the received initial sludge, and then sends the treated sludge into the multimodal coupled reaction module through a conveying pipeline. The monitoring module acquires sludge status data in real time at the outlet of the pretreatment module, inside the coupled reaction module, and at the inlet of the deep treatment module, and transmits the data to the dynamic control module. The dynamic control module sends control commands to the pretreatment module, coupled reaction module, deep treatment module, and resource recovery module according to the received parameters to adjust the operating status of each module. During the processing in the multimodal coupled reaction module, a portion of the treated sludge enters the deep treatment module, while the other portion is sent to the resource recovery module for resource extraction.

[0045] The system of this invention breaks through the functional limitations of a single processing module through the collaborative operation of multiple modules. Real-time data acquisition from the monitoring module provides a basis for dynamic control, enabling the operating parameters of each module to accurately match the sludge treatment needs, avoiding the problems of incomplete treatment or energy waste in traditional fixed-parameter operation modes. The multimodal coupled reaction module, combining ultrasound and multiple reaction units, enhances the sludge breaking down and pollutant degradation effects, while simultaneously achieving the connection between resource recovery and deep treatment. Ultimately, this not only improves the overall efficiency of sludge treatment but also expands the system's functionality, enabling sludge treatment to move from simple volume reduction to a synergistic advancement of resource recovery and harmlessness. Furthermore, it can dynamically adjust according to the sludge state, enhancing the system's adaptability to different sludge characteristics.

[0046] Example 2

[0047] This embodiment is based on the aforementioned embodiment. In this embodiment, for the sludge pretreatment module, the initial sludge first enters the sludge thickening unit. After a period of treatment, the sludge moisture content is significantly reduced. Subsequently, the thickened sludge is transported to the sludge conditioning unit. In the conditioning unit, the reagent dosing component automatically adds inorganic reagents, while the stirring component is activated to ensure thorough mixing of the reagents and sludge. After conditioning is completed, the transfer pump set starts working, transporting the conditioned sludge to the multimodal coupling reaction module. During this process, the dynamic control module adjusts the operating frequency of the transfer pump set in real time according to the overall system operation requirements to ensure that the sludge delivery volume matches the processing capacity of the subsequent reaction module.

[0048] In this embodiment, the sludge thickening unit reduces the moisture content of the sludge, thereby decreasing the processing load on subsequent treatment modules and avoiding the problem of low reaction efficiency caused by high moisture content sludge. Its principle is to remove some free water through physical separation, creating better conditions for subsequent chemical reactions. The sludge conditioning unit utilizes the coordinated addition of chemicals and stirring to alter the colloidal structure of the sludge through the chemical action of inorganic agents, improving its treatability. Stirring ensures uniform distribution of the chemicals, preventing localized excessively high or low concentrations that could negatively impact the conditioning effect. The application of a variable frequency centrifugal pump allows for dynamic adjustment of the sludge delivery rate, preventing overload or idling of subsequent reaction modules due to delivery rate fluctuations. This ensures a stable connection between the pretreatment and coupled reaction modules, comprehensively improving the treatment quality of the pretreatment stage and the continuity of system operation.

[0049] Example 3

[0050] This embodiment is based on the aforementioned embodiment. In this embodiment, for the multimodal coupled reaction module, after the reaction chamber receives the pretreated sludge, multiple ultrasonic transducers of the ultrasonic reaction unit are simultaneously activated, applying ultrasonic waves to the sludge from the bottom and side walls of the reaction chamber. Simultaneously, the microwave generator of the microwave auxiliary unit starts working, and microwaves are uniformly applied to the sludge in the reaction chamber through conduits. The anode and cathode plates of the electrochemical synergistic unit are energized, and under the separation of the proton exchange membrane, the reaction chamber forms an anode region and a cathode region, where the sludge undergoes a redox reaction under the influence of the electric field. The dynamic control module adjusts the output power of the microwave generator and the supply voltage of the electrodes in real time according to the monitored sludge treatment status.

[0051] In this embodiment, the ultrasonic transducer applies ultrasound waves from multiple directions, utilizing the shock waves and shear forces generated by the cavitation effect to efficiently break down the sludge floc structure and release intracellular organic matter. Compared to single-directional ultrasound, multi-directional ultrasound has a wider coverage area and more uniform and thorough breakdown. The microwave-assisted unit rapidly increases the sludge temperature through the microwave thermal effect, accelerating the chemical reaction rate of pollutants in the sludge and simultaneously enhancing the intensity of the ultrasonic cavitation effect. The two work synergistically to improve treatment efficiency. The electrochemical synergistic unit uses electrode reactions to oxidize, decompose, or reduce pollutants in the sludge. The proton exchange membrane effectively separates the reaction areas, preventing interference between oxidation and reduction products and improving pollutant removal efficiency. The synergistic operation of these three units overcomes the functional limitations of single ultrasonic treatment, significantly improving the depth of sludge breakdown and pollutant degradation, and the parameters can be dynamically adjusted, further optimizing the treatment process.

[0052] Example 4

[0053] This embodiment is based on the aforementioned embodiment. In this embodiment, for the monitoring module, the detection probe of the sludge particle size monitoring unit penetrates into the output pipe of the sludge pretreatment module and the interior of the multimodal coupled reaction module to capture the particle size changes of sludge particles in real time; the sludge concentration monitoring unit continuously detects the volumetric solids content of sludge at the inlet and outlet of the coupled reaction module and the input end of the deep treatment module; the pollutant content monitoring unit extracts sludge samples from the output pipes of the coupled reaction module and the deep treatment module through a sampling pump to analyze the content of soluble organic matter and heavy metal ions; the temperature, pH and pressure sensors of the reaction environment monitoring unit record the environmental parameters in the reaction chamber of the multimodal coupled reaction module in real time and transmit all monitoring data to the system control center in real time.

[0054] In this embodiment, the monitoring module constructs a real-time database of the entire sludge treatment process through multi-dimensional parameter monitoring. Sludge particle size and concentration monitoring provide direct evidence for judging the degree of sludge breakdown and treatment progress. Its principle is to reflect the treatment effect through changes in physical properties, avoiding incomplete treatment caused by relying solely on experience. Pollutant content monitoring targets the treatment objectives, monitoring pollutant removal in real time to ensure that the treated sludge meets standards. Chemical analysis methods are used to accurately detect pollutant concentrations, providing direction for subsequent parameter adjustments. Reaction environment monitoring controls the temperature, pH, and pressure of the reaction chamber to ensure the reaction proceeds under suitable conditions, as these environmental factors directly affect the chemical reaction rate and direction. Deviations from suitable ranges may lead to decreased treatment efficiency or the generation of byproducts. The synergistic effect of multi-dimensional monitoring enables the system to comprehensively grasp the sludge treatment status, providing accurate data support for dynamic control and avoiding the treatment risks caused by incomplete traditional monitoring.

[0055] As a preferred embodiment, the sludge particle size monitoring unit uses a laser particle size analyzer, the sludge concentration monitoring unit uses an infrared light scattering concentration meter, the pollutant content monitoring unit uses an ultraviolet-visible spectrophotometer and an ion chromatograph, and the temperature sensor, pH sensor, and pressure sensor of the reaction environment monitoring unit can be the following models: AMETEK1600 temperature sensor, KROHNE SMARTPAT PH 2390 pH sensor, and ABB 266HSH pressure sensor.

[0056] Example 5

[0057] This embodiment is based on the aforementioned embodiment. In this embodiment, for the dynamic control module, after the monitoring module transmits various sludge parameters to the dynamic control module, the data processing unit first processes these parameters to remove interference signals and convert the data into a standardized format. Subsequently, the parameter calculation unit calls the built-in parameter matching algorithm and operating condition judgment model, and combines the processed monitoring data to analyze the current operating condition of the sludge treatment, and calculates the operating parameters that should be adjusted for each module, such as the sludge pretreatment module and the coupled reaction module. Finally, the execution control unit converts the calculated parameters into control signals and sends them to the power equipment, reaction unit, and conveying valve in the system to adjust the operating power, reaction time, and valve opening of the equipment.

[0058] In this embodiment, the filtering, noise reduction, and standardization processes of the data processing unit ensure the accuracy and reliability of the monitoring data. The principle is to eliminate abnormal data through data preprocessing techniques, avoiding errors in control decisions due to data inaccuracies. The algorithm and model of the parameter calculation unit are core components. The model, built based on a large amount of sludge treatment data, can accurately determine operating conditions and calculate optimal operating parameters by combining real-time data. This breaks through the limitations of traditional parameter adjustments based on manual experience, making parameter adjustments more scientific and rational. The execution control unit, as the execution terminal, transforms abstract parameters into control signals that the equipment can recognize, ensuring accurate implementation of control commands and achieving more precise adjustments to the operating status of each module. The entire dynamic control process forms a closed-loop control of data acquisition, processing, decision-making, and execution, enabling the system to optimize operating parameters in real time according to the sludge treatment status. This improves the intelligence level of system operation and avoids resource waste and poor treatment effects caused by fixed parameter operation.

[0059] As a preferred implementation, the parameter calculation unit incorporates a pre-set parameter matching algorithm and operating condition judgment model. It can also be equipped with a complex sludge component identification system for targeted regulation. Specifically, the parameter calculation unit can employ a weighted factor matching algorithm, inputting sludge particle size, concentration, soluble organic matter and heavy metal concentration, and viscosity parameters from the monitoring module. The operating condition judgment model is built based on machine learning, trained using historical sludge treatment data. Based on the thresholds and weights of each parameter, it identifies complex sludge components and outputs regulation parameters according to pre-set matching rules. Targeted regulation is achieved by utilizing data correlation and threshold judgment principles.

[0060] Example 6

[0061] This embodiment is based on the foregoing embodiment, and further explanation is given for the deep processing module and the resource recycling module.

[0062] The advanced treatment module includes a sludge dewatering unit and a cake conveying unit. The input of the sludge dewatering unit is connected to the output of the multimodal coupled reaction module, and its output is connected to the input of the cake conveying unit. The sludge dewatering unit uses a plate and frame filter press. The number of filter plates in the plate and frame filter press can be adjusted according to the processing capacity. It is equipped with a pressure sensor to monitor pressure changes during the filtration process. The feed pump of the plate and frame filter press is controlled by frequency conversion, and the feed rate is adjusted by a dynamic control module. The cake conveying unit uses a belt conveyor. The running speed of the belt conveyor is linked to the sludge discharge rate of the plate and frame filter press.

[0063] The resource recovery module includes a biogas collection unit, an energy conversion unit, and a carbon source recovery unit. The input end of the biogas collection unit is connected to the top of the reaction chamber of the multimodal coupled reaction module via a pipeline. The input end of the energy conversion unit is connected to the electrochemical coordinating unit of the multimodal coupled reaction module. The input end of the carbon source recovery unit is connected to the output end of the multimodal coupled reaction module via a pipeline. The biogas collection unit includes a gas-liquid separator, a biogas storage tank, and a gas purification component. The gas-liquid separator is used to separate moisture from the biogas. The biogas storage tank is used to store the purified biogas. The gas purification component uses a desulfurization tower and a decarbonization tower to remove hydrogen sulfide and carbon dioxide from the biogas. The energy conversion unit includes a rectifier, an inverter, and an energy storage battery pack. The rectifier is used to convert the DC power generated by the electrochemical coordinating unit into AC power. The inverter is used to adjust the voltage and frequency of the AC power. The energy storage battery pack is used to store excess electrical energy. The carbon source recovery unit includes a filtration component and a concentration component. The filtration component uses an ultrafiltration membrane to remove solid impurities from the carbon source. The concentration component uses a reverse osmosis membrane to concentrate soluble organic carbon sources.

[0064] Example 7

[0065] This embodiment describes a multimodal ultrasonic coupled sludge treatment and control method, based on the systems described in the foregoing embodiments. Figure 1 As shown, the specific steps include the following:

[0066] S100, sludge pretreatment stage, uses the sludge pretreatment module to perform preliminary treatment of the initial sludge, preparing it for subsequent multimodal coupling reactions;

[0067] S200, the multimodal coupling reaction stage, achieves in-depth breakdown and pollutant degradation of pretreated sludge through the multimodal coupling reaction module, and simultaneously recovers resources. At the same time, it combines intelligent monitoring and dynamic control to achieve real-time adjustment of parameters.

[0068] S300, the deep treatment stage, uses the deep treatment module to dewater the sludge after the multimodal coupling reaction to obtain sludge cake that meets the discharge requirements.

[0069] S400, the system operating condition adaptive adjustment stage, achieves adaptive adjustment of the system through intelligent monitoring and dynamic control for specific complex operating conditions.

[0070] This control method breaks down the complex sludge treatment process into orderly steps through phased processing. Each stage focuses on a specific treatment objective, avoiding interference between different stages. The pretreatment stage prepares for subsequent reactions by optimizing sludge characteristics and reducing the impact of adverse factors on the coupled reactions. The coupled reaction stage combines multimodal technology and dynamic control to enhance treatment effectiveness and achieve resource recovery. It leverages the synergistic effect of multiple technologies to overcome the limitations of single technologies, while dynamic control ensures that the reaction is always in an optimal state. The advanced treatment stage ensures that the sludge ultimately meets discharge standards by reducing sludge volume and rendering it harmless through physical dewatering. The adaptive adjustment stage addresses unforeseen circumstances by utilizing real-time monitoring and rapid control, enabling the system to cope with complex operating conditions. Each stage is interconnected, forming a complete treatment process that not only improves the systematic nature and efficiency of sludge treatment but also enhances the system's stability and anti-interference capabilities.

[0071] Example 8

[0072] This embodiment is based on the aforementioned embodiment. In this embodiment, step S100 is executed. In stage S101, the initial sludge is transported to the sludge thickening unit. During the thickening process, the monitoring module continuously detects the volume solids content of the sludge. When the sludge reaches the expected thickening effect, the dynamic control module issues a command, the thickening unit stops working, and the thickened sludge is sent to the conditioning unit. In stage S102, the dynamic control module controls the conditioning unit to add inorganic conditioning agents according to the monitored characteristics of the thickened sludge, and at the same time starts the stirring component. After the agent and sludge are fully mixed, the control pump group is controlled to transport the conditioned sludge to the coupling reaction module.

[0073] In step S101 of this embodiment, the concentration endpoint is controlled by monitoring the sludge volumetric solids content. This avoids the problems of insufficient concentration leading to excessive load on subsequent treatments, or excessive concentration causing sludge caking. The principle is to determine whether the moisture content reaches a suitable range based on the sludge volumetric solids content, creating favorable conditions for subsequent conditioning. In step S102, reagents are precisely added according to the sludge characteristics. The chemical action of inorganic reagents improves the colloidal stability of the sludge, enhancing its biodegradability and dewatering performance. Stirring ensures uniform mixing of the reagents and sludge, avoiding poor local conditioning effects. The entire pretreatment step, by controlling the concentration endpoint and reagent addition, ensures that the sludge possesses good treatment characteristics before entering the coupled reaction module, reducing the difficulty of subsequent reactions, improving overall treatment efficiency, and avoiding problems caused by reagent waste and over-concentration.

[0074] Example 9

[0075] This embodiment is based on the aforementioned embodiment, and executes the S200 multimodal coupling reaction step. In stage S201, the dynamic control module sets initial operating parameters for the ultrasonic reaction unit, microwave-assisted unit, and electrochemical synergistic unit according to the various characteristics of the pretreated sludge. In stage S202, the three reaction units start simultaneously, and the sludge undergoes breakdown and reaction under various influences. The monitoring module detects the sludge particle size at fixed intervals and provides timely feedback on the treatment progress. In stage S203, the dynamic control module adjusts the parameters of each reaction unit based on the sludge particle size, concentration, and soluble organic matter concentration data. At the same time, it optimizes the power of the microwave-assisted unit in real time based on the reaction chamber temperature to ensure a stable reaction environment.

[0076] In S201 of this invention, parameters are set according to the initial characteristics of the sludge, avoiding low treatment efficiency caused by excessive initial deviations in parameter settings. Based on the matching between sludge characteristics and the action mechanism of the reaction units, optimal initial conditions are provided for the reaction. In S202, multiple reaction units work synergistically: ultrasonic cavitation breaks down the sludge structure, microwave thermal effect accelerates the reaction, and electrochemical action degrades pollutants. These three factors form a synergistic effect, improving the treatment effect. Regular particle size detection monitors the breakdown progress in real time, providing a basis for parameter adjustment. In S203, dynamic parameter adjustment uses the concentration of soluble organic matter to determine the degree of pollutant degradation. Combined with temperature control of the reaction environment, the reaction remains in a highly efficient state, avoiding incomplete treatment or excessive energy consumption under single-parameter operation, ultimately achieving deep sludge breakdown and efficient pollutant degradation.

[0077] As a preferred embodiment, this embodiment may further include: S204, synchronous resource recovery. During the multimodal synergistic reaction, the dynamic control module controls the synchronous operation of the resource recovery module. The biogas collection unit collects the biogas generated in the reaction chamber through pipelines. After the water is separated by the gas-liquid separator, it is sent to the gas purification component for desulfurization and decarbonization treatment. The purified biogas is stored in the biogas storage tank. The power conversion unit converts the DC power generated by the electrochemical synergistic unit into AC power through a rectifier. Part of the AC power is used for the power needs of each module of the system, and the excess power is stored in the energy storage battery pack. The carbon source recovery unit samples and filters the sludge after the reaction. After removing solid impurities through an ultrafiltration membrane, the soluble organic carbon source is concentrated using a reverse osmosis membrane. When the carbon source concentration reaches the range of 5000mg / L - 10000mg / L, the concentrated carbon source is transported to the external denitrification system.

[0078] Example 10

[0079] This embodiment is based on the aforementioned embodiment. In this embodiment, deep treatment is performed according to step S300. In stage S301, the dynamic control module controls the dewatering unit of the deep treatment module to prepare and adjust the initial state of the dewatering equipment based on the volumetric solids content of the sludge after the coupling reaction. In stage S302, the filter press is started to filter the sludge. The dynamic control module gradually increases the filter pressure according to the internal pressure of the filter press, while the monitoring module detects the solids content of the effluent in real time. If the solids content of the effluent exceeds the standard, the filter time is automatically extended until the effluent meets the requirements.

[0080] In S301, the dewatering equipment status is adjusted according to the volumetric solids content of the sludge. The principle is that sludge with different solids contents has different dewatering difficulties, and targeted equipment adjustments can improve dewatering efficiency and avoid equipment idling or overloading. In the S302 stage, the filter press pressure is gradually increased, using the pressure gradient to promote water separation in the sludge, avoiding initial high pressure causing sludge particles to clog the filter cloth and affect the dewatering effect. Monitoring the solids content of the effluent directly judges the dewatering quality, ensuring that the final sludge cake meets the discharge requirements and avoiding excessive moisture content in the sludge cake due to incomplete dewatering, which would make subsequent disposal difficult. The entire advanced treatment process, through dynamic pressure adjustment and quality monitoring, ensures both dewatering efficiency and dewatering quality, enabling the sludge to ultimately achieve stable and compliant discharge.

[0081] Example 11

[0082] This embodiment is based on the aforementioned embodiment, and focuses on the adaptive adjustment steps for the S400 operating condition. In stage S401, the monitoring module continuously monitors the concentration of heavy metal ions in the sludge, viscosity, and reaction chamber temperature. When a parameter exceeds the normal range, the system is immediately determined to be in a complex operating condition, and the signal is transmitted to the dynamic control module. In stage S402, the dynamic control module adjusts the corresponding module parameters according to different anomaly types. For example, when heavy metals exceed the standard, the electrochemical unit and reagent addition are optimized; when viscosity is abnormal, the ultrasonic unit and the addition of regulators are adjusted; and when the temperature is low, the power of the microwave unit is increased. In stage S403, the monitoring module shortens the detection interval and continuously tracks changes in key parameters. If the parameters return to normal and remain stable for a period of time, the system resumes normal operation; otherwise, adjustments continue.

[0083] In this embodiment, the operating condition identification in S401 is based on the judgment of key parameter thresholds. The principle is that these parameters directly reflect the core conditions of sludge treatment. Exceeding the threshold indicates an abnormality in the treatment process, and timely identification can prevent the problem from escalating. S402 involves targeted parameter adjustment, which optimizes the functions of corresponding modules according to the different causes of abnormalities. For example, electrochemical action enhances heavy metal removal, ultrasonic action reduces sludge viscosity, and microwave action increases temperature, achieving targeted adjustments. S403's effect verification ensures the effectiveness of parameter adjustments by shortening the detection interval, while monitoring during the stabilization period prevents parameter rebound. Ultimately, this allows the system to quickly recover stable operation under complex conditions, ensuring that the sludge treatment effect is not affected and enhancing the system's anti-interference capability and operational stability.

[0084] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A multi-modal ultrasonic coupling sludge treatment system, characterized by, The sludge pretreatment module, the multi-modal coupling reaction module, the monitoring module, the dynamic control module, the deep treatment module and the resource recovery module are connected in series. The output end of the sludge pretreatment module is connected with the input end of the multi-modal coupling reaction module through a conveying pipeline. The detection end of the monitoring module is arranged on the sludge pretreatment module, the multi-modal coupling reaction module and the deep treatment module. The control output end of the dynamic control module is connected with the control input end of the sludge pretreatment module, the multi-modal coupling reaction module, the deep treatment module and the resource recovery module through a control line. The output end of the multi-modal coupling reaction module is connected with the input end of the deep treatment module through a pipeline and is connected with the input end of the resource recovery module through another pipeline.

2. A multi-modal ultrasonic coupling sludge treatment system according to claim 1, wherein, The sludge pretreatment module comprises a sludge concentration unit, a sludge conditioning unit and a conveying pump group. The sludge concentration unit is used for reducing the water content of the initial sludge.

3. A multi-modal ultrasonic coupling sludge treatment system according to claim 1, wherein, The sludge conditioning unit is internally provided with a medicament adding assembly and a stirring assembly. The medicament adding assembly is used for adding inorganic medicament required for conditioning.

4. The multi-modal ultrasonic coupling sludge treatment system of claim 1, wherein, The conveying pump group comprises a variable frequency centrifugal pump. The variable frequency centrifugal pump is used for controlling the operating frequency through the dynamic control module. The multi-modal coupling reaction module comprises an ultrasonic reaction unit, a microwave auxiliary unit, an electrochemical synergistic unit and a reaction chamber. The ultrasonic reaction unit, the microwave auxiliary unit and the electrochemical synergistic unit are all installed in the reaction chamber. The ultrasonic reaction unit comprises a plurality of ultrasonic transducers with independently adjustable output power. The microwave auxiliary unit comprises a microwave generator and a microwave conduit. The microwave conduit is uniformly arranged on the side wall of the reaction chamber. The output power of the microwave generator is adjusted through the dynamic control module. The electrochemical synergistic unit comprises an anode plate, a cathode plate and a proton exchange membrane. The anode plate and the cathode plate are respectively arranged on the two sides of the reaction chamber. The proton exchange membrane is arranged between the anode plate and the cathode plate to separate the reaction chamber into an anode area and a cathode area. The anode plate adopts a titanium-based coating electrode, and the cathode plate adopts a stainless steel electrode. The anode plate and the cathode plate are respectively connected with an adjustable voltage source. The monitoring module comprises a sludge particle size monitoring unit, a sludge concentration monitoring unit, a pollutant content monitoring unit and a reaction environment monitoring unit. The detection probe of the sludge particle size monitoring unit is respectively inserted into the output pipeline of the sludge pretreatment module and the inside of the multimodal coupling reaction module, for real-time detection of the particle size distribution range of sludge particles; the detection end of the sludge concentration monitoring unit is respectively arranged in the import and export pipelines of the multimodal coupling reaction module and the input end pipeline of the advanced treatment module, for detection of the volume solid content range of the sludge; the sampling end of the pollutant content monitoring unit is connected with the output pipelines of the multimodal coupling reaction module and the advanced treatment module through a sampling pump, for detection of the soluble organic matter concentration and heavy metal ion concentration range in the sludge; the reaction environment monitoring unit comprises a temperature sensor, a pH sensor and a pressure sensor, and the temperature sensor, the pH sensor and the pressure sensor are all installed in the reaction chamber of the multimodal coupling reaction module, for detection of the temperature range, the pH value range and the pressure range in the reaction chamber.

5. A multi-modal ultrasonic coupling sludge treatment system as claimed in claim 1, wherein, The dynamic regulation module comprises a data processing unit, a parameter calculation unit and an execution control unit, the input end of the data processing unit is connected with the signal output end of the intelligent monitoring module, the output end of the data processing unit is connected with the input end of the parameter calculation unit, and the output end of the parameter calculation unit is connected with the input end of the execution control unit; The data processing unit is used for filtering, denoising and standardizing various parameter data transmitted by the intelligent monitoring module; the parameter calculation unit is internally provided with a preset parameter matching algorithm and a working condition judgment model, which is used for judging the current sludge treatment working condition according to the processed monitoring data and calculating the operating parameters required for adjusting each module; the execution control unit comprises a plurality of frequency converters, power regulators and valve controllers and is connected with power equipment, reaction units and conveying valves in the system respectively, for converting the calculated operating parameters into control signals and adjusting the operating state of the equipment.

6. A multi-modal ultrasonic coupling sludge treatment control method according to any one of claims 1-5, wherein The method comprises the following steps: S100, a sludge pretreatment stage, the initial sludge is preliminarily treated through a sludge pretreatment module, for preparation of subsequent multimodal coupling reaction; S200, a multimodal coupling reaction stage, the pretreated sludge is deeply broken and pollutant degradation is realized through a multimodal coupling reaction module, and resource recovery is simultaneously realized, and real-time adjustment of parameters is realized in combination with intelligent monitoring and dynamic regulation; S300, an advanced treatment stage, the sludge after multimodal coupling reaction is dewatered through an advanced treatment module, and sludge cake meeting emission requirements is obtained; S400, a system working condition self-adaptive adjustment stage, the system is self-adaptively adjusted through intelligent monitoring and dynamic regulation for specific complex working conditions.

7. A multi-modal ultrasonic coupling sludge treatment control method according to claim 6, wherein, S100 specifically comprises the following steps: S101, sludge concentration treatment, the initial sludge is conveyed to the sludge concentration unit of the sludge pretreatment module, and the initial sludge is concentrated, in the process, the sludge concentration monitoring unit of the monitoring module detects the volume solid content of the concentrated sludge in real time, when the volume solid content reaches the range of 3%-5%, the dynamic regulation module controls the sludge concentration unit to stop concentration, and the concentrated sludge is conveyed to the sludge conditioning unit; S102, sludge conditioning treatment, the dynamic control module controls the dosing assembly of the sludge conditioning unit to add inorganic conditioning agent according to the pH value and pollutant content of the concentrated sludge detected by the monitoring module, the dosage is controlled in the range of 0.1g / L-0.5g / L, and the stirring assembly is controlled to operate at the same time, the stirring time lasts for 10min-20min, so that the agent and the sludge are fully mixed, after the conditioning is completed, the dynamic control module controls the delivery pump set to deliver the conditioned sludge to the reaction chamber of the multi-modal coupling reaction module.

8. A multi-modal ultrasonic coupling sludge treatment control method according to claim 6, wherein, S200 specifically includes the following steps: S201, initial reaction parameter setting, the dynamic control module sets the initial operation parameters of each unit of the multi-modal coupling reaction module according to the volume solid content, particle size distribution and pollutant concentration of the sludge output by the sludge pretreatment module, wherein the initial output power of the ultrasonic reaction unit is set to 100W-300W, the initial output power of the microwave auxiliary unit is set to 300W-600W, and the initial voltage of the electrochemical synergistic unit is set to 0.5V-1.2V; S202, multi-modal synergistic reaction, the ultrasonic reaction unit, the microwave auxiliary unit and the electrochemical synergistic unit are started, so that the sludge in the reaction chamber is broken and reacted under the action of ultrasonic cavitation effect, microwave thermal effect and electrochemical oxidation-reduction effect, in this process, each monitoring unit of the monitoring module works continuously, the sludge particle size monitoring unit detects the particle size distribution of the sludge particles every 5min-10min, and when the average particle size of the sludge particles is detected to be reduced to the preset range, the signal is transmitted to the dynamic control module; S203, dynamic adjustment of reaction parameters, after receiving the sludge particle size monitoring signal, the dynamic control module adjusts the operation parameters of each reaction unit in combination with the sludge volume solid content detected by the sludge concentration monitoring unit and the soluble organic matter concentration detected by the pollutant content monitoring unit, if the soluble organic matter concentration is lower than 1000mg / L, the output power of the ultrasonic reaction unit is increased to 200W-400W, and the output power of the microwave auxiliary unit is increased to 400W-700W, if the soluble organic matter concentration is higher than 3000mg / L, the output power of the ultrasonic reaction unit is reduced to 50W-200W, and the output power of the microwave auxiliary unit is reduced to 200W-500W, and according to the temperature of the reaction chamber detected by the reaction environment monitoring unit, if the temperature is higher than 60℃, the output power of the microwave auxiliary unit is reduced, if the temperature is lower than 30℃, the output power of the microwave auxiliary unit is increased, so that the temperature of the reaction chamber is maintained in the range of 30℃-60℃.

9. A multi-modal ultrasonic coupling sludge treatment control method according to claim 6, wherein, S300 specifically includes the following steps: S301, sludge dewatering preparation, the dynamic control module controls the sludge dewatering unit of the advanced treatment module to perform dewatering pretreatment according to the volume solid content of the sludge after multi-modal coupling reaction detected by the monitoring module; S302, sludge filter pressing treatment, the sludge is filtered by the filter press, the dynamic control module adjusts the filter pressing pressure according to the pressure value detected by the pressure sensor inside the filter press, the initial pressure is set to 0.3-0.5 MPa, and the pressure is gradually increased to 0.6-0.8 MPa as the filter pressing process proceeds, the filter pressing time lasts for 1.5-2.5 h, in the process, the sludge concentration monitoring unit detects the solid content of the filter effluent in real time, if the effluent solid content is higher than 0.1%, the filter pressing time is extended, and the filter pressing treatment is completed.

10. A multi-modal ultrasonic coupling sludge treatment control method according to claim 6, wherein, S400 specifically includes the following steps: S401, complex condition recognition, the pollutant content monitoring unit of the intelligent monitoring module continuously detects the heavy metal ion concentration in the sludge, when the heavy metal ion concentration is detected to be more than 0.5-2 mg / L, or the sludge concentration monitoring unit detects that the sludge viscosity is more than 50-100 cP, or the reaction environment monitoring unit detects that the reaction chamber temperature is lower than 15-20℃, it is judged that the system is in complex condition, and the condition signal is transmitted to the dynamic control module; S402, targeted parameter adjustment, after the dynamic control module receives the complex condition signal, the parameters of each module are adjusted according to different condition types, if the heavy metal exceeds the standard condition, the voltage of the electrochemical cooperation unit is increased, the reaction time is prolonged, and the reagent adding assembly is controlled to add heavy metal chelating agent; if the sludge viscosity abnormally increases, the output power of the ultrasonic reaction unit is increased, and the viscosity regulator is added to reduce the sludge viscosity; if the low temperature environment condition, the output power of the microwave auxiliary unit is increased, the reaction chamber temperature is maintained in the preset range, and the reaction time is prolonged; S403, condition treatment effect verification, after adjusting the parameters, the monitoring module detects the key parameters once every 3-5 min, if the heavy metal ion concentration, sludge viscosity or reaction chamber temperature is in the preset range and lasts for 10-15 min, it is judged that the complex condition treatment meets the standard, the dynamic control module controls the system to restore normal operation parameters, if it does not meet the standard, the parameters are continuously adjusted until it meets the standard.

Images