38 results about "Advanced oxidation process" patented technology

The invention relates to the technical field of industrial wastewater treatment, and discloses a treatment method for grinding fluid wastewater of a grinder, which comprises the following steps: pretreatment and demulsification, multi-stage chemical purification, biochemical deep treatment, deep purification and recycling, and sludge treatment. A specific supported heterogeneous catalyst is adopted in the multi-stage chemical purification step, nano zero-valent iron and copper oxide composite active components constructed on the surface of the catalyst can enhance the generation efficiency and stability of free radicals in the advanced oxidation process, and a composite coagulant with an optimized ratio in the coagulating sedimentation step is cooperated, so that the purification efficiency of the high-grade oxidation process is improved. An efficient continuous removal system for heavy metal ions and refractory organic pollutants is formed; meanwhile, in the pretreatment step, the demulsifier is composed of specific components, through the synergistic effect of all the components, rapid demulsification of the emulsified oil phase in the grinding fluid wastewater is achieved, favorable conditions are created for subsequent deep treatment, and therefore the purification efficiency and operation stability of the technology are overall improved.

The invention discloses an iron-mud-based environmental functional material based on an electrochemical-ferrate synergistic effect as well as a preparation method and application of the iron-mud-based environmental functional material. The material is derived from an iron sludge byproduct generated in the process of cooperatively treating wastewater by electrochemical oxidation and ferrate. Due to the influence of active oxygen species, electric field action and local pH gradient in an electrochemical system, the forming process of the iron mud is different from that of conventional chemical precipitation, the obtained material has an amorphous and high-specific-surface-area unique structure and is endowed with remarkable oxidation capacity, and cooperation of oxidation and adsorption functions is achieved. The material disclosed by the invention can be used for efficiently removing anion pollutants such as arsenic, antimony and phosphate in a water body. According to the invention, solid wastes generated by a combined process are converted into a high-performance adsorption material, so that the resource utilization of treating wastes with wastes is realized, the comprehensive operation cost of the advanced oxidation process is effectively reduced, and the method has good environmental and economic benefits and application prospects.

This invention relates to the field of industrial wastewater treatment technology, specifically a highly efficient treatment method for methionine wastewater, comprising the following steps: Step 1: pH adjustment, adjusting the pH of the methionine wastewater to 6.0-7.0; Step 2: Polyferric sulfate coagulation and sedimentation, adding polyferric sulfate and polyacrylamide to the pH-adjusted wastewater; Step 3: Pre-stage ozone oxidation, passing the supernatant obtained in Step 2 through ozone-containing gas for oxidation treatment; Step 4: Biochemical treatment, subjecting the effluent from Step 3 to a biochemical reaction, sequentially passing through anoxic and aerobic stages; Step 5: Post-stage ozone oxidation, passing the biochemical effluent obtained in Step 4 again through ozone-containing gas for deep oxidation treatment; Step 6: Activated carbon adsorption. The methionine wastewater treated by this invention can significantly reduce TOC concentration and improve COD removal rate. The pH pre-adjustment step effectively reduces the quenching effect of alkalinity on hydroxyl radicals, ensuring the efficiency of subsequent advanced oxidation processes.

The invention discloses a sewage plant tail water treatment system and method, and relates to the technical field of sewage treatment.The sewage plant tail water treatment system is applied to tail water generated by a sewage plant adopting an ozone advanced oxidation technology, and the treatment system comprises an activated carbon reaction device, a denitrification reaction device, an ecological pond and a horizontal subsurface flow wetland; the activated carbon reaction device is communicated with the tail water pipe and comprises an activated carbon filtering layer, and the activated carbon filtering layer is used for adsorbing chemical oxygen demand and dissolved oxygen in tail water; the denitrification reaction device is communicated with the activated carbon reaction device and comprises a denitrification filter material layer, and the denitrification filter material layer is used for autotrophic denitrification nitrogen removal of tail water; the ecological pond is communicated with the denitrification reaction device and comprises aquatic plants and aquatic animals; the horizontal subsurface flow wetland is communicated with the ecological pond and is used for deeply filtering the tail water. The treatment system can improve the purification effect of the tail water of the sewage plant.

The application relates to the technical field of wastewater treatment, in particular to a device for comprehensively treating wastewater based on a high-level oxidation method, which comprises a base, a frame body slidingly arranged on the base, a treatment barrel rotatingly and sealingly arranged in the frame body through a first mounting ring, an electric cylinder arranged on the base and fixedly connected with the frame body at an output end, an air bag transversely arranged between the frame body and the base, a water inlet valve pipe arranged at one end of the treatment barrel, and a water outlet valve pipe rotatingly and sealingly arranged at the other end of the treatment barrel through a second mounting ring; the device is characterized in that the electric cylinder reciprocatingly slides, a rack drives a transmission assembly, then the treatment barrel is driven to rotate in the frame body through thread engagement, full stirring of the wastewater is realized through movement in two directions of the transverse direction and the axial direction, the air bag is driven to stretch and contract through relative movement of the frame body and the base, the wastewater is aerated, and the quality of the wastewater treatment is improved through multiple filtration of the filler ring plate.

The invention relates to the technical field of liquor industrial wastewater treatment, in particular to an advanced treatment system and method for liquor industrial wastewater. Comprising a water inlet pump, a quartz sand filter in pipeline connection with the water inlet pump, a self-cleaning filter in pipeline connection with the quartz sand filter, an ultrafiltration device in pipeline connection with the self-cleaning filter, an ultrafiltration water producing tank in pipeline connection with the ultrafiltration device, and a nanofiltration water feeding pump in pipeline connection with the ultrafiltration water producing tank, according to the present invention, the problem that the organic matter cannot be deeply and substantially removed after the biochemical treatment can be solved, and the separation treatment cost is low, and the high-cost treatment modes such as the advanced oxidation process such as Fenton do not need to be adopted so as to substantially reduce the production operation cost. According to the invention, blockages are backwashed to the micro-electrolysis device at the same time, so that the problem of blockage can be solved, and the centralized treatment efficiency of high-concentration pollutants causing blockage is also greatly improved.

The present application belongs to the technical field of wastewater treatment, and particularly relates to a method for treating organic phosphonic acid wastewater by using a supported copper monatomic catalyst, wherein persulfate and the supported copper monatomic catalyst are added into the organic phosphonic acid wastewater to degrade the organic phosphonic acid; the supported copper monatomic catalyst is a metal oxide loaded with copper monatomic atoms, wherein the loading amount of the copper monatomic atoms is 1-10 wt% of the total weight of the catalyst. Compared with the prior art, the present application solves the problem that metal ions cannot be recovered in the advanced oxidation process of the prior art in the treatment of organic phosphonic acid wastewater. The present application provides an advanced oxidation technology for organic phosphonic acid wastewater, realizes efficient and deep degradation of the organic phosphonic acid in the wastewater, can adapt to wastewater in a wide pH range, and has strong anti-interference and high selectivity after multiple degradation, with a very low metal leaching content (0.0015 mg / L).

The application discloses an ozone micro-nano bubble coupling ultraviolet oxidation wastewater treatment process, which comprises the following steps: filtered wastewater is pumped by a booster pump, and then sequentially passes through a micro-nano bubble jet device connected with an ozone generator and a flow-through ultraviolet lamp, and finally enters an oxidation contact tank; the wastewater in the oxidation contact tank is continuously circulated by the wastewater booster pump, and treated wastewater is discharged after COD reaches a standard. The ozone micro-nano bubble coupling ultraviolet oxidation wastewater treatment process has the advantages that the process is used for treating chemical industrial park wastewater by adopting the ozone micro-nano bubble technology coupling ultraviolet jet advanced oxidation process, ozone utilization rate is high, process conditions are mild, and the removal effect of wastewater COD is good, so the process has great potential in the field of wastewater treatment; the ozone micro-nano bubble coupling ultraviolet advanced oxidation process requires less hardware equipment and has low operation cost, so the process has a broad application prospect in the field of engineering wastewater treatment.

The present utility model relates to a sustainable, solar-powered facility for the treatment of medical waste and its conversion into pavement bricks. The facility comprises a medical waste input module, a size-reduction assembly including a double-shaft crusher and granulator, an underground transfer tank, sanitation tanks equipped with an Advanced Oxidation Process (AOP) system, a trommel-based separation system, a cement mixer, a screw conveyor, a hydraulic pavement brick making machine, and an underground water storage tank. In operation, medical waste undergoes size reduction and is transferred to the sanitation tanks, wherein the AOP system generates hydroxyl radicals to disinfect and oxidize contaminants. The treated waste is then separated into liquid and solid fractions, with the liquid component directed to the water storage tank for treatment and recycling, and the solid component blended with cementitious materials and formed into pavement bricks using the hydraulic machine. The facility is powered by a hybrid solar energy system configured to support continuous operation, including in off-grid or limitedaccess areas. The utility model provides an integrated solution for safe medical waste treatment and resource recovery.

This invention discloses a composite catalyst, its preparation method, and its application in sludge treatment, belonging to the field of sludge treatment and environmental protection technology. The invention synthesizes an iron-carbon nanocomposite catalyst using ferric nitrate nonahydrate, antibiotic bacterial residue, and melamine as precursors. The resulting catalyst can, on the one hand, activate ammonium persulfate to generate free radicals that disrupt the water-locking structure of the sludge, enhancing its hydrophobicity and thus improving dewatering efficiency. On the other hand, the Fe species in the composite catalyst activates ammonium persulfate to form Fe... 3+ Fe 3+ The hydrolysis generates ferric hydroxide colloids that can adsorb sludge particles, neutralize surface charges, thereby reducing interparticle repulsion, promoting floc aggregation, and enhancing dewatering efficiency. The advanced oxidation process of ammonium persulfate catalyzed by iron-carbon nanocomposite catalysts also achieves the removal of antibiotic resistance genes from sludge.

INDUSTRIAL PROCESS FOR THE TOTAL DESTRUCTION OF POLLUTANTS IN GAS OR LIQUID COMPOUNDS BY CHEMICAL MODIFICATION. The invention relates to a process for the chemical modification of pollutants in a gaseous or liquid composition followed by their total destruction by an advanced oxidation process (AOP), for the treatment of any pollutant, alone or in a multi-pollutant mixture, selected from: - Alkali-sensitive inorganic compounds or those simply soluble in aqueous media. - Alkali-sensitive organic compounds or those simply soluble in aqueous media. A process for the chemical modification and total destruction of alkali-reactive pollutants, partially or totally water-soluble, present in a gaseous or liquid effluent has now been developed.

The application relates to a preparation method of an iron-molybdenum bimetallic MOF derived catalyst and application of the iron-molybdenum bimetallic MOF derived catalyst in treatment of refractory organic wastewater by activated persulfate. The application is based on a transition metal activated persulfate (PDS) advanced oxidation process, and a magnetic recyclable iron-molybdenum bimetallic composite catalyst (Fe / Mo@C) is successfully prepared by a co-precipitation and calcination method. The Fe / Mo@C is a porous nanomaterial, has rich surface active sites, a large specific surface area, a simple synthesis process, superior performance, a wide pH action range, and has a good application prospect. In the present study, bisphenol A (BPA) is selected as a target pollutant, and the composite catalyst shows high reaction activity in removal of BPA, and 20mg / L BPA can be rapidly removed within 10min. The excellent performance is due to the synergistic effect of the molybdenum-iron bimetallic material, which accelerates Fe(II) / Fe(III), Mo(IV) / Mo(VI) double circulation, accelerates generation of SO4 · And ·OH by activation of PDS to rapidly further attack and decompose organic pollutants. The application provides a new idea for preparation of a new efficient catalyst and treatment of refractory organic pollutants by activated persulfate.

The present application relates to the precise quantitative method of quenching agent in advanced oxidation treatment of sewage, comprising the following steps: S1: using the standard substance of the to-be-treated pollutant to prepare the to-be-tested pollutant mother liquor; S2: taking several portions of the to-be-tested pollutant mother liquor with the same volume, respectively adding different volumes of the quenching agent, and then forming several portions of the first to-be-tested liquid after constant volume; S3: taking the same volume of sample from the several portions of the first to-be-tested liquid for detection, and determining the maximum volume fraction of the quenching agent ensuring the detection accuracy; S4: taking several portions of the to-be-tested pollutant mother liquor with the same volume, respectively adding different volumes of the quenching agent, adding the catalyst and the oxidant, and then forming several portions of the second to-be-tested liquid after reaction; S5: controlling the sampling volume, determining the minimum volume fraction of the quenching agent required for terminating the oxidation reaction within the range of the maximum volume fraction of the quenching agent; and S6: actual sewage oxidation experiment, determining the addition amount of the quenching agent according to the maximum volume fraction of the quenching agent and the minimum volume fraction of the quenching agent.

The invention belongs to the technical field of wastewater treatment, and provides a hydroxyethyl and tungsten oxide co-modified graphite-phase C3N4 composite photocatalyst as well as a preparation method and application thereof. The composite photocatalyst is composed of graphite phase C3N4 and WO3 anchored to the graphite phase C3N4 through 2-hydroxyethyl, C atoms, not connected with hydroxyl, in the 2-hydroxyethyl are combined with N atoms of terminal amino or terminal imino of the graphite phase C3N4 to form C-N bonds, W atoms of WO3 are combined with O atoms of the 2-hydroxyethyl to form W-O bonds, and the W atoms of WO3 and O atoms of the 2-hydroxyethyl are combined to form C-N bonds. And the graphite phase C3N4 and WO3 are coupled through an interface W-O-C bond to form the S-schema heterojunction. According to the present invention, the OH generation efficiency of the existing graphite-phase C3N4-based catalyst can be improved, the photocatalytic advanced oxidation performance of the graphite-phase C3N4-based catalyst can be improved, and the organic pollutant degradation efficiency of the existing graphite-phase C3N4-based catalyst-driven advanced oxidation process can be improved.

The invention belongs to the field of degradation of antibiotics, and discloses a preparation method and application of a boron-nitrogen co-doped cobalt-based carbon material based on MOF derivation. On the basis of an in-situ generated cobalt-based carbon material, a nitrogen element is firstly introduced and then a boron element is further introduced, and the synthesized material is further applied to an advanced oxidation process based on persulfate to degrade sulfamethoxazole in a water environment. According to the boron-nitrogen co-doped cobalt-based carbon material prepared by the method, the problem of heavy metal ion leaching of an original single nonmetal cobalt-based carbon catalyst is solved, and the problems of poor reusability, insufficient durability and the like caused by heavy metal ion leaching of the original single nonmetal cobalt-based carbon catalyst are solved. Moreover, the activation capacity of the material on persulfate is promoted through secondary doping of nitrogen and boron, an oxidation process taking singlet oxygen as a main reactive oxygen substance is presented in a degradation system, and the material has relatively high adaptability to complex water environment conditions and can bear relatively wide environmental changes.

The invention discloses a black and odorous sludge conditioning dehydration method, and belongs to the technical field of black and odorous sludge conditioning, the method comprises the following steps: adjusting the initial water content of original black and odorous sludge to obtain diluted black and odorous sludge; sulfuric acid is added into the diluted black and odorous sludge to adjust the pH value, full stirring and mixing are conducted, the solution is kept in a stable acid environment, and acidified black and odorous sludge is obtained; fully stirring and mixing the acidified black and odorous sludge with ferrite to obtain black and odorous sludge subjected to ferrous treatment; and urea peroxide is continuously added into the black and odorous sludge treated by ferrous iron, stirring is performed, a full reaction is performed, and the conditioned black and odorous sludge is obtained. The method is suitable for dehydration reduction of the black and odorous sludge, a conditioning system for catalyzing oxidation of urea peroxide and strengthening aggregation by ferric salt is constructed to replace a traditional advanced oxidation process which is high in cost and poor in stability or has ecological risks, and technical reserve is provided for engineering application of black and odorous sludge treatment and disposal.

The invention discloses a hollow fiber ceramic catalytic membrane, a membrane module reaction device and method and application, and belongs to the technical field of water treatment and membrane separation. A membrane separation layer with a catalytic function can be constructed by loading or fixing the nano-catalyst on the pore channels and the surface of the ceramic membrane in situ, and the membrane has the characteristics of excellent chemical stability, high temperature resistance, high pollution resistance, high mechanical strength, long service life and the like, and can tolerate a harsh chemical reaction environment in an advanced oxidation process. According to the hollow fiber catalytic membrane, spinel CoFe2O4 is used as a main active component, so that active oxygen species such as hydroxyl free radicals with strong oxidizing capacity are continuously generated, effective degradation of antibiotics is realized, and the technical problem that pollutants are difficult to effectively remove in an existing method is solved.

The invention discloses a preparation method of a catalyst for efficiently degrading tetracycline in an advanced oxidation process, and belongs to the technical field of sewage treatment.The preparation method comprises the steps that when the catalyst is prepared through the method, three transition metal salts of iron, copper and cobalt need to be used as precursors, and when the catalyst is prepared, the iron salt, the copper salt and the cobalt salt are added into deionized water to be stirred to form a mixed solution; then adjusting the pH value of the mixed solution to form a precipitate; and finally, putting the precipitate into a drying oven, and drying to obtain the FeCuCo-LDH catalyst. The used ferric salt can be FeCl3, Fe (NO3) 3 and Fe2 (SO4) 3; the copper salt can be CuCl2, Cu (NO3) 2 and CuSO4; the cobalt salt can be CoCl3, Co (NO3) 3 and Co2 (SO4) 3. The FeCuCo-LDH catalyst prepared by the method has an efficient PMS activation path constructed by a multi-dimensional synergistic mechanism, so that a catalytic system shows excellent reaction performance in an extremely short time, FeCuCo-LDH can realize rapid removal of tetracycline in a short time, good degradation efficiency and engineering applicability are shown, and the method is suitable for industrial production. The method is suitable for rapid treatment and purification of actual antibiotic-polluted wastewater.

The application discloses a wastewater and waste gas treatment process for an acrylonitrile production device, and belongs to the technical field of wastewater and waste gas treatment. The process comprises the following steps: (1) a nitrile removal process: adding an alkaline substance into condensate of a four-effect evaporator to adjust the pH value, and reacting to obtain water discharged from the nitrile removal process; introducing first part of atmospheric discharge of an AOGI waste gas incineration system into the water discharged from the nitrile removal process to adjust the pH value; (2) a cyanide breaking process: the water discharged from the step (1) is introduced into a UV / H2O2 advanced oxidation process to react, and water discharged from the cyanide breaking process is obtained; introducing all atmospheric discharge of a WWI waste water incineration system and second part of atmospheric discharge of the AOGI waste gas incineration system into the water discharged from the cyanide breaking process to adjust the pH value; (3) the water discharged from the step (2) is sequentially treated by an A / A / O process and a biological filter EBF, and can be discharged up to the standard. The treatment process realizes waste treatment by waste, so that the wastewater and waste gas generated in the acrylonitrile production device can be stably discharged up to the standard, and carbon and nitrogen emission reduction of the acrylonitrile production device is realized.

Design and synthesis of a new heterogeneous photocomposite catalyst ZnCo2O4 / g-C3N4 / Cu for the treatment of water and wastewater pollutants. This invention is related to the field of environment and can remove some persistent and organic pollutants of water and wastewater, such as some pharmaceutical pollutants (antibiotics). Therefore, there are various methods for the destruction and removal of pollutants, and advanced oxidation processes are an effective and efficient technology for the decomposition and destruction of dangerous, non-degradable and resistant organic pollutants. The main mechanism of this method is oxidation-reduction reactions and the production of highly active species. Among advanced oxidation processes, the use of photocatalytic reactions has been considered as an environmentally friendly method. In the present work, the design and synthesis of a new heterogeneous photocomposite catalyst ZnCo2O4 / g-C3N4 / Cu in the field of water and wastewater treatment was able to remove and destroy some pollutants such as a number of antibiotics (nitroimidazole group). This method is economical, recyclable and reusable, non-toxic, high production speed and also produces safe materials at the end of the reaction.

This invention discloses a highly efficient medical wastewater treatment agent and its preparation method, belonging to the field of wastewater treatment technology. It includes a main agent and an auxiliary agent. The main agent is prepared through the following steps: Step S1, adding diethanolamine to methanol to obtain intermediate 1; Step S2, adding chloromethyl polystyrene resin to isopropanol, stirring at a uniform speed, and adding intermediate 1 to obtain an antibacterial matrix; Step S3, adding cobalt nitrate hexahydrate and trimesic acid to deionized water to obtain a precursor; Step S4, adding the antibacterial matrix and the precursor to a 10% (v / v) ethanol aqueous solution to obtain the main agent. Through the synergistic effect of the main agent and the auxiliary agent, it can efficiently treat medical wastewater. The precursor is an organic ligand of metallic cobalt, which can catalyze the activation effect of the auxiliary agent persulfate, thereby producing sulfate free radicals and forming a new advanced oxidation process that effectively treats antibiotic pollutants in medical wastewater.

A semiconductor process wastewater treatment system and a method for treating semiconductor process wastewater using the system are disclosed. The disclosed semiconductor process wastewater treatment system comprises: an advanced oxidation reaction tank for advanced oxidation of a semiconductor process wastewater comprising tetramethyl ammonium hydroxide (TMAH) using a UV / PDS process that activates peroxydisulfate (PDS) with ultraviolet light (UV ray); an anaerobic biological reaction tank for biologically treating the semiconductor process wastewater that has passed through the advanced oxidation reactor, the anaerobic biological reaction tank configured to treat the semiconductor process wastewater with microorganisms comprising sulfate reducing bacteria (SRB) under anaerobic conditions, and configured to react sulfate generated in the advanced oxidation reactor with the sulfate reducing bacteria to generate H2S; and a gas separator for separating the H2S from gas generated in the anaerobic biological reactor.

Disclosed is a modular commercial food storage, sterilization, and drinking water supply system. The system comprises a food storage and drinking water supply apparatus, a user terminal, and an administrator terminal. The food storage and drinking water supply apparatus includes a solar power unit installed on an upper portion of the apparatus, an energy storage unit configured to store electric power, an ozone generation unit configured to receive power stored in the energy storage unit and generate ozone to be provided to a drinking water purification unit and a food processing management unit through an advanced oxidation process using microplasma, a food processing management unit configured to sterilize food using ozone generated from the ozone generation unit and deliver ozone into a food storage space, and a drinking water purification unit configured to purify drinking water by receiving ozone generated from the ozone generation unit.

The present invention relates to a system and method for manipulating water-based super vapor or gas to form charged ions. The system comprises a tube chamber (1) that houses the magnetrons (2), a power supply and control system (3) to regulate the emission of the magnetic field, a gas input system to introduce additional gases, and an output system to direct the processed vapor or gas to the condensation system (4). The method involves obtaining water-based super vapor or gas from a liquid source and subjecting it to an array of electromagnetic sources equipped with magnetrons (2) that generate a magnetic field. This exposure charges and ionizes the vapor or gas. Optionally, one or more additional gases may be introduced during this process to facilitate molecular recombination through restructuring, resulting in stable molecules. These restructured molecules can then be directed to a cooling or condensation system for collection. The present invention provides an efficient approach for enhancing the reactivity and stability of super vapor and gases for various industrial applications, including advanced oxidation processes, energy generation, and environmental remediation.

This invention belongs to the field of marine navigation technology and discloses an integrated intelligent ballast water dynamic adjustment and purification system for ships. It includes: a data acquisition module for real-time acquisition of ship attitude data, current water volume / level data of each ballast tank, and current water quality parameters; a ballast water adjustment module, including a pipeline network connecting each ballast tank and pumps and valves installed on the pipeline network; and a ballast water purification module, located on the pipeline network, which uses an ultraviolet persulfate advanced oxidation process to treat ballast water online and includes an adjustable persulfate dosing unit. This invention achieves global optimization of adjustment time and purification energy consumption through a multi-objective collaborative optimization model. The "adjustment-purification integration" control mode achieves "simultaneous adjustment and purification," avoiding cross-contamination, reducing total system energy consumption, and possessing the triple advantages of high efficiency, energy saving, and environmental protection.

The present disclosure relates to water treatment systems utilizing non-thermal plasma processes integrated with advanced oxidation processes for the rapid degradation and removal of per-and polyfluorinated compounds (PFAS) and other toxic organic contaminants. This approach addresses the chemical stability and mass-transfer limitations of toxic organic compounds including PFAS by generating reactive species at the gas-liquid interface and employing oxidative radicals in the bulk liquid. The solution enables thorough defluorination and minimizes harmful byproducts, with optional surfactant addition and gas injection to enhance transport and reaction efficiency. Principal uses include scalable and energy-efficient remediation of toxic organic compounds contaminated water in municipal, industrial, and environmental applications.

The present application relates to a cellulose-based iron / molybdenum-carbon nanocomposite catalytic material, a preparation method thereof and application thereof in degrading pollutants, the composite catalytic material is prepared by taking cellulose and ionic liquid as raw materials, making cellulose-based hydrogel, adsorbing ferrous sulfate and ammonium molybdate, drying, and synthesizing iron-carbon composite catalyst or iron / molybdenum-carbon-based composite catalyst through high-temperature carbonization, and can be used for activating persulfate to catalytically degrade antibiotic wastewater. The preparation method of the present application realizes the resource utilization of waste, successfully synthesizes a catalyst with high efficiency in activating persulfate, has good degradation effect, is used for activating persulfate to degrade antibiotic wastewater, has high activation performance, strong Fe 3+ / Fe 2+ cycle ability, effectively realizes the cycle between Fe 3+ and Fe 2+ in the iron-based catalyst-persulfate advanced oxidation process, has good treatment effect on antibiotic wastewater, and realizes effective utilization of natural resources.

This invention belongs to the field of advanced oxidation process technology, specifically an intelligent predictive control method and system based on hydroxyl radical oxidation process. Addressing the problems of existing hydroxyl radical-based advanced oxidation process control methods being unable to sense radical generation efficiency online and exhibiting lag in response to dynamic water quality and multivariate nonlinear coupling, leading to inaccurate dosing, high operating costs, low effluent compliance rates, and poor long-term operational adaptability, the present invention proposes the following solution, comprising the following steps: S1: Collecting parameters and constructing a deep learning predictive model for hydroxyl radical generation efficiency; This invention achieves rapid and accurate response to dynamic water quality through deep learning soft measurement of hydroxyl radical efficiency and integrated rolling optimization control, significantly improving effluent compliance rates while reducing operating costs. It also possesses adaptive model updates, disturbance compensation, and fault-tolerant switching capabilities for abnormal operating conditions, ensuring long-term stable and efficient system operation.

A portable, temporary supplemental disinfection system is provided that can be temporarily integrated into an existing water system. The disinfection system includes a delivery system for controlled delivering of a water treatment agent, such as an advanced oxidation processes (AOP) agent, to the premises water system. A disinfection monitoring module is connected to the water system downstream of the introduction of the AOP agent and includes at least sensors to measure oxidation reduction potential (ORP)(mV) and pH, and a free chlorine analyzer (ppm). A control module controls the operation of the delivery system, reads the data from the water quality sensors and provides alerts and maintenance notifications to water-management personnel. All of these components are mounted on a rigid panel that is configured to be supported and transported by a conventional hand cart. The control module can include a wireless modem to transmit between the control module and off-site water-management personnel responsible for monitoring and controlling the operation of the portable, temporary supplemental disinfection system.

The present application relates to a preparation method of nitrogen vacancy-rich cobalt nitride nanowires and its application in deep treatment of antibiotic wastewater. The present application introduces a large number of nitrogen defects into cobalt nitride through metal doping method, enhances the adsorption capacity of cobalt nitride for oxygen-containing substances, and solves the main difficult problem restricting the application of cobalt nitride in advanced oxidation process. The catalytic material shows great application potential in peroxoacetic acid activation process, and the activation efficiency of peroxoacetic acid and the degradation efficiency of pollutants can reach 100% within 5 min. In addition, the introduction of nitrogen defects effectively controls the generation of selective oxidation species Co(IV)=O in the process, which can realize the selective removal of pollutants. It also shows strong pH tolerance and environmental background resistance, and is more suitable for the treatment of actual wastewater.