283 results about "Industrial effluent" patented technology

The invention discloses a short-process coagulation water purification treatment method and equipment based on a polytetrafluoroethylene membrane. The method relates to the technical field of short-process coagulation water purification treatment, and comprises the following steps: firstly, adding an agent into the electronic industrial wastewater to complete pretreatment, then filtering by adopting a polytetrafluoroethylene membrane to realize water purification, continuously collecting and analyzing short-process coagulation water purification data of the electronic industrial wastewater, and timely optimizing and adjusting a treatment scheme. Pollutants in a water body are converted into micro-flocs by adding a medicament, the micro-flocs are intercepted by a polytetrafluoroethylene membrane to remove the pollutants in the water body, a real-time monitoring sensor collects water quality data and membrane operation data, and a short-process coagulation quality quantized value and a purification accuracy quantized value are obtained through further analysis. Compared with a judgment value in a database, the method optimizes a medicament adding scheme and a membrane operation scheme, improves the process applicability, and solves the problems of insufficient accuracy and adaptability of a short-process water purification treatment method in the prior art.

The invention relates to the technical field of fermentation industrial wastewater treatment, and particularly discloses a white spirit production wastewater treatment process and system. The system comprises a pretreatment unit, an anaerobic treatment unit, a denitrification unit, a multi-stage biochemical treatment unit, an advanced treatment unit, a sludge treatment unit and a backwashing water recovery unit which are connected through a corrosion-resistant pipeline, a variable frequency pump body and a control valve group. The method comprises the following steps: homogenizing water quality and water quantity through an adjusting tank, adjusting the pH value through a neutralizing tank, pretreating through a microfilter and an air flotation device, sequentially feeding into a hydrolysis acidification tank and a two-stage UASB reactor to degrade organic matters, reducing nitrogen concentration through a denitrification unit, deeply degrading pollutants through a multi-stage biochemical system, and finally realizing up-to-standard discharge through magnetic coagulation phosphorus removal and decoloration treatment. The sludge is subjected to resource utilization after being concentrated and dehydrated, and backwashing water and filtrate are recycled and retreated. The system is high in treatment efficiency, low in operation cost, high in resource recovery rate, stable in effluent and suitable for wastewater treatment of various white spirit production enterprises.

The invention relates to the technical field of preparation of high polymer materials and intelligent response materials, in particular to a preparation method of polyacrylamide for treatment. And constructing a quaternary polymerization system with acrylamide, a temperature-sensitive monomer and a zirconium-based metal organic framework-graphene quantum dot composite material. Magnetic response interpenetrating network gel is formed by induction of a photo-magnetic synergistic field, bacterial cellulose nanofibrils and a calcium silicate layered structure are introduced through a biomimetic mineralization technology, and the hierarchical porous carrier is prepared by combining a microfluidic crushing technology and a supercritical drying technology. Finally, through an intelligent regeneration mechanism of bimetal coordination activation and high-frequency magnetic field triggering, the material is endowed with multiple stimulation response characteristics, high adsorption capacity and in-situ regeneration capacity, and the mechanical strength and the salt resistance are remarkably improved through a pearl-layer-like micro-nano laminated structure. The method is suitable for industrial wastewater advanced treatment and emergency pollution repair scenes.

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 is applicable to the technical field of industrial wastewater treatment, and provides a construction method of a microalgae-in-situ bacteria strengthening system for degrading naphthenic acid, which comprises the following steps: separating and identifying two strains of in-situ bacteria from a discharge port of an oil-producing wastewater treatment plant, and constructing a three-strain typical stain-resistant green alga-in-situ bacteria co-culture system. The strengthening system can highly tolerate and efficiently degrade naphthenic acid, can effectively remove nitrogen and phosphorus, and has higher biomass and high-value compound yield. The microalgae-in-situ bacterium strengthening system can reduce pollutant discharge and improve the microalgae resource utilization rate, and the microalgae-in-situ bacterium strengthening system can be used as a biological strengthening degradation technology of naphthenic acid and can be suitable for purification treatment of oil production wastewater and petroleum polluted water areas.

The invention relates to the technical field of industrial wastewater treatment, in particular to an industrial wastewater treatment process parameter self-adaptive adjusting method and system.The method comprises the steps that a sensor array is used for collecting water quality, working conditions and environment data; inputting sliding window data by the improved LSTM neural network, and predicting the effluent quality within 15-60 minutes; taking a multi-objective optimization function as an objective, and improving a particle swarm optimization algorithm to optimize parameters such as aeration intensity; the expert rule base corrects the result; according to the technical scheme, the system comprises a sensing layer, a data layer, a decision-making layer, an execution layer and a man-machine interaction layer, the water outlet standard reaching rate exceeds 99%, energy consumption is reduced by 15%-20%, and adaptability is high.

The application discloses an automatic control method for oxidation flocculation parameters in mancozeb wastewater treatment, and belongs to the technical field of industrial wastewater treatment and automatic control. In view of the problem that the existing process relies on manual experience and the oxidation and flocculation stages are improperly connected, the multifunctional modified material containing dithiocarbamate salt groups, quinone groups and pre-complexed manganese and zinc ions is prepared first; the material and hydrogen peroxide are synchronously added in the acid oxidation stage, and the control system monitors the redox potential change rate in real time; when the redox potential reaches the preset threshold value and the characteristic change point with the first derivative of zero or the change from positive to negative appears and is maintained for the preset maintenance time, the system is automatically adjusted to be alkaline, the modified material triggers the net capture and chelation crosslinking reaction, and finally solid-liquid separation is carried out; the polymer skeleton is protected from indiscriminate attack of free radicals, the problem of drug antagonism is overcome, and the stable and up-to-standard effluent quality is realized.

This invention relates to the field of industrial wastewater treatment technology, and discloses an electrocatalytic oxidation device and its operating method for treating saline industrial organic wastewater. Wastewater enters the reaction chamber through the bottom inlet, is forced through the anode channels, and undergoes an electrochemical oxidation reaction on the anode surface to convert chloride ions into hypochlorous acid. A vacuum ultraviolet light source performs in-situ photolysis of water molecules and hypochlorous acid, exciting various active species, including strongly reducing hydrated electrons, strongly oxidizing hydroxyl radicals, and chloride radicals. This device, through the construction of a reduction-oxidation system, can efficiently degrade various pollutants with both electron-rich and electron-deficient characteristics. This invention utilizes the synergistic coupling of electrochemical generation and photochemical conversion to convert high-concentration chloride ions into active precursors, effectively overcoming the bottlenecks of low degradation efficiency and poor selectivity in traditional technologies for high-salt and complex water quality, and significantly improving the system's mineralization efficiency and energy utilization rate.

The invention provides a high-salt industrial wastewater treatment device, and relates to the technical field of wastewater treatment, the wastewater treatment device comprises a mixed bed shell, a resin bed, a resin state on-line monitoring system, a resin state adjusting system and a self-adaptive control unit; the on-line monitoring system monitors the pressure drop of the resin bed and the ion concentration or water quality purity of effluent in real time, and transmits data to the self-adaptive control unit; the self-adaptive control unit judges whether a resin state adjusting program is triggered or not according to the monitoring data and sends an instruction to a resin state adjusting system; and the resin state adjusting system executes backwashing operation or adds a resin regenerant according to the instruction to realize regeneration and blockage relief of the resin bed. The system can sense the working state of the resin in real time, automatically execute regeneration and cleaning, effectively relieve blockage, recover the exchange capacity of the resin, remarkably improve the treatment efficiency and the stability of the effluent quality, and reduce the operation and maintenance cost.

The application discloses a kind of organic industrial wastewater treatment equipment and processing method, it is related to wastewater treatment technical field, including mixing medicine subassembly;Mixing medicine subassembly includes jar body, which is internally provided with stirring subassembly and guide frame;Guide frame is fixedly installed in jar body inside bottom, and stirring subassembly includes first rotating rod;First rotating rod is fixedly installed with crosspiece;Two double circular head grooves are movably installed with second rotating rod;Top is cooperatively installed with first gear;First gear is provided with first toothed plate on one side, and the first toothed plate is fixedly installed on the top of crosspiece;During stirring, two second rotating rods are revolved along guide frame by crosspiece, while, the connecting plate at the bottom of second rotating rod moves along the rolling groove inside guide frame by guide wheel, realizes the movement of second rotating rod along the double circular head groove opened on crosspiece, realizes the position change of first stirring frame and second stirring frame, guarantees that two stirring frames are fully mixed and stirred with impurities and reagent in wastewater.

The invention relates to the technical field of industrial wastewater treatment, in particular to a treatment method for treating high-sulfonic-group wastewater by advanced oxidation, which comprises the following steps: regulating the pH value of the wastewater to 3.0-4.0, then carrying out photo-Fenton oxidation, controlling the molar ratio of H2O2 to Fe < 2 + > to be 300: 1-400: 1, regulating the pH value of the effluent to 5.0-6.0, adding sodium sulfite to quench residual H2O2 and flocculate and precipitate iron mud, and finally, carrying out secondary oxidation on the wastewater to obtain the high-sulfonic-group wastewater. Performing anaerobic-aerobic biochemical treatment on the supernate, adding sodium carbonate and sodium hydroxide into biochemical effluent to soften and descale, concentrating in a mechanical vapor recompression evaporator, washing and recrystallizing crystallized mother liquor, and adsorbing and purifying the crystallized mother liquor with activated carbon to obtain an industrial salt product. The problem of MVR evaporation scaling is effectively solved by accurately controlling the neutralization pH and combining the softening step, finally, wastewater standard treatment and salt high-quality recovery are achieved, the COD removal rate can reach 95% or above, and excellent environmental and economic benefits are achieved.

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 defluorination agent suitable for defluorination of electronic industrial wastewater as well as a preparation method and a defluorination method of the defluorination agent. The defluorination agent comprises 9-10 wt% of aluminum salt, 0.1-0.2 wt% of ferric salt, 0.6-1.1 wt% of an alkaline regulator and the balance of water, the aluminum salt is selected from one or more of polyaluminum chloride and aluminum sulfate, and the ferric salt is selected from one or more of ferric trichloride, ferric sulfate and polyferric sulfate. The fluorine removal agent provided by the invention can realize that the fluorine concentration of discharged water is lower than 1mg / L through one-stage / two-stage fluorine removal under a low-fluorine, medium-fluorine or high-fluorine water inlet condition, the optimal pH condition of reaction is reduced, the acid-base and agent use cost is saved, and meanwhile, the fluorine removal agent is simple in preparation method and can be applied to large-scale popularization and production.

The application discloses a method for constructing a space-layered composite particle by salt-tropism induction and application thereof, and comprises the following steps: inoculating functional bacteria into an anaerobic ammonia oxidation granular sludge system, so that the functional bacteria and the anaerobic ammonia oxidation granular sludge form a mixed system; the functional bacteria are heterotrophic bacteria with salt-tolerant characteristics Bacillus pumilus NJUST51 strain; the mixed system is operated under anaerobic conditions, and salt is gradually added into influent, so that the salinity is increased to 0.5% to 1.0%; under the action of salt selection pressure, the functional bacteria are enriched on the surface of the granules to form a space-layered structure, so that a composite granule system is constructed. The application realizes stable construction by salt-tropism induction, improves the salt resistance and toxicant resistance stability of the anaerobic ammonia oxidation system, and expands the application range of the system in treatment of high-salinity and organic-toxicity industrial wastewater.

The invention relates to the technical field of industrial wastewater treatment, and discloses an advanced oxidation-biological coupling treatment method and system.The method comprises the steps that after the pH value of wastewater is adjusted to be 3-5, Fenton oxidation and photocatalytic oxidation treatment are synchronously conducted in an oxidation reaction tower, the concentration of ferrous sulfate is controlled to be 8-12 mmol / L, the adding amount of hydrogen peroxide is controlled to be 40-60 mg / L, and the pH value of the wastewater is adjusted to be 3-5; irradiating with a 0.4-0.6 W ultraviolet light source, and reacting for 8-16 hours; the pressure is monitored in real time in the process, and safety pressure relief protection is set; after oxidation treatment, the pH value of the wastewater is adjusted to 6.5-8.5, biodegradation is conducted through a fluidized bed or a membrane bioreactor, the air flow of the fluidized bed is controlled to be 1-2 m < 3 > / h, and the membrane bioreactor is subjected to gas-water combined backwashing with the period of 4-12 hours; and finally, the effluent is recycled or discharged after being monitored to reach the standard. The system comprises an adjusting unit, an advanced oxidation unit, a biological treatment unit and an intelligent control unit which are sequentially connected. According to the invention, efficient decomposition and deep purification of refractory organics are realized, the treatment efficiency is high, the operation is stable, and the safety is good.

The invention relates to the technical field of organic pollution treatment, in particular to a lignin grafted graphene oxide quantum dot material, a preparation method thereof and a polycyclic aromatic hydrocarbon degradation method, and the material is prepared by grafting reaction of alkaline lignin and graphene oxide quantum dots under alkaline conditions. When the strain is applied to degradation of polycyclic aromatic hydrocarbon, the strain and a Microbacterium sp.W1-2 strain with the preservation number of CGMCC (China General Microbiological Culture Collection Center) NO.35223 form a synergistic degradation system. The material can significantly promote thallus growth, enhance pollutant interface mass transfer and bioavailability, and realize efficient degradation in a dark environment without photocatalysis. Experiments show that under the condition that the initial concentration of benzo [a] pyrene is 5000g / L, by adding the material, the degradation rate within 6 hours can be increased to 651.4 g / h, which is increased by 2.9 times compared with that of a single strain; and the removal rate within 72 hours reaches 86.4%. The method has the advantages of being high in degradation efficiency, short in period, high in environmental adaptability, independent of illumination and the like, and is suitable for rapidly repairing the polycyclic aromatic hydrocarbon in the industrial wastewater.

The application provides a preparation method of a whole Co-based catalyst using Mn-Ba co-promotion ozone generation, and products and applications thereof, and comprises surface treatment of a carrier, loading of an active component and reconfiguration of an active interface. When Mn and Ba in a suitable ratio are introduced into a Co3O4 material, the element Mn can dope the crystal lattice of the Co3O4 to improve the redox capacity, and the element Ba can modify the surface of the Co3O4 to promote ozone generation, so that the Mn and Ba co-promotion can effectively improve the adsorption, activation and oxidation of active oxygen of the Co3O4 catalyst, so that more active sites are generated in the material, and the Co3O4 catalyst is particularly suitable for deep purification of odor generated by ammonia nitrogen functional groups. The raw materials used in the method are cheap, the preparation process is simple, and the method has strong application development prospects in kitchen waste odor treatment, industrial wastewater discharge treatment and the like.

Systems and methods for capturing carbon dioxide from multiple different sources at least in part via the electrochemical production of acids and / or bases are generally described. The carbon dioxide may be captured at least in part via exposure of a first input gas stream from a first source to a capture agent (e.g., a liquid solution comprising electrogenerated basic species) to generate carbonate anions, and then subsequent conversion of at least some of the carbonate anions to bicarbonate anions via capture of additional carbon dioxide from a second input gas stream from a second, different source. The first source may be ambient air (e.g., for a direct air capture process), while the second source may be a point source of carbon dioxide (e.g., industrial effluent).

This invention relates to a method for the batch preparation of cobalt-based heterojunction catalysts, the cobalt-based heterojunction catalysts themselves, and their applications. The invention utilizes a green, environmentally friendly, and simple ball milling and calcination method to prepare cobalt-based heterojunction catalysts. This batch preparation method avoids organic solvent pollution, is low-cost, and environmentally friendly. The prepared cobalt-based heterojunction catalysts exhibit high specific surface area and uniform metal site dispersion, enhance catalytic degradation activity against various pollutants in water treatment, and demonstrate good cycle stability, making them suitable for industrial wastewater treatment.

The invention discloses an intelligent advanced denitrification wastewater treatment method based on SND-ED, and relates to the technical field of wastewater biological treatment. The method comprises the following five stages: regulation / homogenization, hydrolysis / acidification, anaerobic pretreatment, intelligent SND-ED biochemical treatment, and precipitation / sludge reflux / sludge discharge. Refractory organic matters are subjected to pre-hydrolysis / anaerobic treatment to generate an easily degradable organic carbon source, parameters such as DO (dissolved oxygen) and pH (potential of hydrogen) are monitored on line, and aeration and oxygen deficit are periodically and alternately performed by the intelligent control unit, so that synchronous and efficient removal of COD (chemical oxygen demand) and total nitrogen in wastewater is realized, and finally, COD and nitrogen in effluent are lower than emission standards. The method is stable in operation, high in impact load resistance, low in energy consumption, low in sludge yield and suitable for deep denitrification treatment of high-nitrogen-content and high-organic-load industrial wastewater.

The invention belongs to the technical field of nano materials, and particularly discloses a magnetic nano titanium dioxide composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing a Fe < 2 + > / Fe < 3 + > mixed solution with a titanium source to form a uniform mixed solution; (2) dropwise adding a dispersing agent into the mixed solution, and stirring and mixing to obtain a reaction system; (3) carrying out heating and ultrasonic treatment on the system, adding an alkali source to adjust the pH value of the reaction system, and continuing the reaction; (4) after the reaction is finished, separating magnetic particles by adopting an external magnetic field, washing, and carrying out vacuum drying to obtain a Fe3O4 / TiO2 composite material; and the dispersing agent is a cocamidopropyl betaine or polyaspartic acid aqueous solution. The particle size of the prepared particles can be as low as 130 nm, PDIlt; 0.3 part; the saturation magnetization is greater than or equal to 40 emu / g, and the magnetic recovery efficiency within 30 seconds is greater than or equal to 90%; the degradation rate of visible light to organic pollutants within 50 minutes is greater than or equal to 57.8%, and the particle size change 1t within 72 hours under the condition that the pH value is 7-11; 15%; the magnetic nano titanium dioxide composite material disclosed by the invention has important application potential in the fields of photocatalysis and industrial wastewater treatment.

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.

This disclosure provides an electrolytic cell device and method for simultaneously achieving desalination and electrocatalytic nitrate reduction, belonging to the field of electrochemical technology. The device uses activated carbon (AC) as the anode and a halogen-modified copper electrode as the cathode, physically separated into two electrochemically coupled chambers by a metal Pt or activated carbon interlayer. For the first time, it couples the electrocatalytic nitrate reduction to ammonia (NRA) module and the desalination module into an integrated system. This device can simultaneously achieve highly efficient desalination and electrocatalytic nitrate reduction, with a desalination rate reaching 188 μg / cm³. ‑ ²min ‑ ¹, Ammonia yield reached 1.16 mgh ‑ ¹cm ‑ ², adaptable to a wide salinity range, solving the problems of low desalination rate and narrow salinity adaptability in existing coupled systems, and achieving efficient synergy between nitrate resource recovery and seawater desalination. This disclosure is applicable to the treatment of marine wastewater or industrial wastewater containing nitrates.

The invention discloses a continuous flow three-phase separation integrated electro-catalytic reactor which comprises a reactor main body, an electrode unit, a fluid disturbance mechanism and a three-phase separation structure, at least two electrode reaction areas are formed in the reactor main body, and an insulated and isolated proton exchange device is arranged between every two adjacent reaction areas; at least two groups of electrode units are correspondingly arranged in the electrode reaction zones; the fluid disturbance mechanism is arranged between the electrode plates of the electrode units and used for breaking the laminar flow state of water flow to promote fluid to make contact with the surfaces of the electrode plates; the three-phase separation structure is integrated on the reactor main body, so that continuous separation and discharge of gas, liquid and solid sediments generated by reaction are realized. Traditional laminar flow limitation is broken through the fluid disturbance mechanism, the contact probability of wastewater and the electrodes is improved, the pollutant degradation efficiency is remarkably improved, the problem that traditional equipment is insufficient in reaction is solved, the structure is simplified through the integrated design, the operation and maintenance cost is reduced, and the device is suitable for continuous and efficient treatment of industrial wastewater.

The invention relates to the technical field of environmental catalysis and advanced oxidation, in particular to a composite catalyst based on abnormal adsorbate type strong metal-carrier interaction (AA-SMSI), a preparation method of the composite catalyst and activation application of the composite catalyst to potassium peroxymonosulfate (PMS). The composite catalyst comprises a nanoscale carrier CeO2 and cobalt nanoparticles which are loaded on the carrier and have a core-shell structure. The unique core-shell structure of the composite catalyst effectively inhibits leaching of cobalt ions and aggregation of nano particles through physical packaging, the stability is greatly improved, the under-coordination shell layer of the composite catalyst also serves as a high-activity site, the PMS activation capacity is remarkably enhanced, and therefore ultrahigh activity and stability are achieved at the same time. The preparation process of the composite catalyst is mild, controllable and environment-friendly, a new thought is provided for breaking through the bottleneck that activity and stability in a traditional catalytic system are difficult to consider at the same time, and the composite catalyst has wide application prospects in the fields of advanced oxidation, industrial wastewater treatment and environmental catalysis.

This application belongs to the field of water quality testing technology, specifically relating to a method for testing ammonia nitrogen in wastewater from the hydrometallurgical process of laterite nickel ore. The method includes the following steps: adding sodium thiosulfate and zinc sulfate to the wastewater, adjusting the pH with a boric acid-sodium hydroxide buffer solution to pH 9.5, and allowing the solution to stand; filtering, taking an appropriate amount of filtrate into a colorimetric tube, and adjusting the volume, then adding potassium sodium tartrate and Nessler's reagent, mixing well, and allowing it to stand; measuring the absorbance, and calculating the ammonia nitrogen concentration in the wastewater based on the absorbance. This method can effectively eliminate the interference from high sulfate content and metal ions in high-sulfate industrial wastewater. The resulting colorimetric system is highly stable and has the advantages of being simple to operate and providing reliable results. It holds significant importance for the testing and treatment of wastewater from the hydrometallurgical process of laterite nickel ore.

The application discloses a method for synthesizing catalase nanocapsules based on gas-liquid two-phase flow microfluidic technology and application. Nitrogen is used as a gas phase, and a liquid phase containing acrylated catalase, a monomer mixture and a crosslinking agent is used to form Taylor flow in a microfluidic chip. The internal vortex of the gas-liquid interface is used to enhance the mixing efficiency, and in-situ radical polymerization on the surface of the enzyme is realized. By screening six microfluidic chips with different structures, the geometric parameters of the chip and the hydrodynamic conditions are optimized, and the particle size uniformity and enzyme activity retention rate of the nanocapsules are significantly improved. The application also discloses a continuous flow reactor system for loading the obtained nanocapsules on macroporous resin microspheres to construct a continuous flow reactor system, and the system is used for efficient degradation of hydrogen peroxide in semiconductor wastewater. The method has the advantages of high mixing efficiency, mild reaction conditions, continuous production and the like, the obtained nanocapsules have the advantages of narrow particle size distribution, high enzyme activity and good stability, and are suitable for the field of industrial wastewater treatment.

The invention belongs to the technical field of flotation reagents, and discloses a use method for activating minerals by utilizing ion waste liquid generated by preparing alkyl thiophosphate. The method comprises the following steps: removing or reducing impurities in the waste liquid to obtain purified waste liquid which can be used as an activating agent; and then, in the flotation operation, ore to be treated is crushed, ground and pulped, an inhibitor, the activating agent, a collecting agent and a foaming agent are sequentially added, and target concentrate is obtained after stirring, air inflation and flotation. The activation potential of the alkyl thiophosphate waste liquid on minerals is found for the first time, industrial wastewater is converted into the efficient flotation activating agent, and a traditional activating agent can be replaced and strengthened. According to the method, the pollution problem of the alkyl thiophosphate waste liquid is solved, the flotation reagent cost is reduced, meanwhile, the concentrate grade and the recovery rate of valuable minerals such as zinc ore, gold ore, copper ore and pyrite can be improved, the requirement for green mine construction is met, and a new path is provided for efficient separation of low-grade ore.