2801results about How to "Improve degradation efficiency" patented technology

The present invention is an industrial waste water microwave electrodeless ultraviolet photocatalysis-dual membrane separation coupling treatment device, the device mainly consists of a reactor (1), a membrane separation system (2), a microwave electrodeless ultraviolet light source system (4), an aeration system, and an ozone tail gas decomposition device (7) connected to the reactor, and an inlet and outlet water system, wherein: the upper and lower parts of the reactor are respectively the reaction zone and the aeration zone, which are separated by a water distribution plate (5); the membrane separation system The microwave electrodeless ultraviolet light source system is located in the reaction zone and is separated by a corrugated partition (3); the aeration system is composed of a microporous aeration head (6) and a blower (8), and the microporous aeration head is located in the aeration At the bottom of the zone, the blower sends air to the aeration zone through the air duct. The invention has the characteristics of high reaction rate, complete degradation of organic matter, long-term operation and the like, and has strong operability and high safety. It is suitable for the treatment of refractory organic industrial wastewater, and it is also suitable for sterilization and disinfection in the field of water supply.

A composite biological agent with ternary microorganism for composting process of agricultural waste is composed of a composite biological agent I, a composite biological agent II, and a composite biological agent III, which is characterized in that the composite biological agent I is composed of bacillus, actinomycetes, microzyme and lactobacillus, the composite biological agent II is composed of trichoderma, ergillus, penicillium and trametes versicolor, and the composite biological agent III is composed of photosynthetic bacterium, azotobacter, phosphorus bacteria, and silicate bacterium. 30-60% composite biological agent I, 30-60% composite biological agent II, 10-20% composite biological agent III are mixed or applied to the process of composting process of agricultural waste in phases. Each component ratio and recruitment of biological agents can be both properly adjusted with different dung materials and dung purpose, thereby achieving purpose of using microorganism resources efficiently and raising fermentation efficiency.

The invention relates to a wastewater treatment method and device combining electrochemical degradation and photocatalysis oxidation technologies taking a diamond film electrode as the anode. The device comprises a flowing electrolytic bath and a photocatalytic reactor. Contaminants have electrocatalytic oxidation at the anode of the flowing electrolytic bath and are electrolyzed to separate out water and then enter the photocatalytic reactor for further degradation. The combination of two technologies can improve the current efficiency reduction caused by oxygen analyzing reaction in an electrochemistry part because oxygen analyzed by the electrochemistry part is a favorable trapping agent of photoelectrons of a photocatalysis part, can improve the separation efficiency of the photoelectrons and cavities and improve the catalytic degradation of the photocatalysis part. Meanwhile, by opening or closing various parts of the device, proper operational modes can be selected according to the kinds and the concentration of wastewater, such as an independent electrochemistry method, an independent photocatalysis method, an electrochemistry and photocatalysis combined method and other different operational modes.

The invention provides a preparation and application method for photocatalysis environmental protection type painting, which relates to construction painting, especially provides a preparation and application method for photocatalysis function painting, which includes steps: mixing titanium-containing organic, water, chelating agent and hydrolysis inhibitor to prepare nano anatase type titanium dioxide water sol; adding metal, oxide or impure titanium dioxide photocatalyst into the titanium dioxide water sol and stirring equably. Using method is coating inorganic isolated layer firstly and coating the photocatalysis painting after drying. Advantages of the invention are: the prepared painting and using technique can be widely used for inner and outer wall surface of building and is harmless to bottom ainting, photocatalysis efficiency is high, cost is low, bonding is firm, transparency is good, preparation is simple, and usage is easy.

The invention relates to a method for reclaiming a carbon fiber reinforced epoxy resin composite material. The conventional method is high in equipment requirement and high in reclamation cost. The method comprises the following steps of: adding a catalyst into an organic reagent to prepare supercritical CO2 composite solution; putting the carbon fiber reinforced epoxy resin composite material tobe decomposed into a reaction kettle, and adding the supercritical CO2 composite solution; and reacting for 1 to 24 hours at the temperature of between 100 and 250 DEG C under the pressure of 7.5 to 25.0MPa, cooling the product to normal temperature, washing and drying the solid product in the product to obtain carbon fibers, and performing reduced pressure distillation on the liquid product in the product to obtain phenol and derivatives thereof. The catalyst is one or two of liquid super acid, solid super acid, phosphotungstic acid, phosphomolybdic acid, acetic acid, formic acid, hydrochloric acid, sulfuric acid and nitric acid. The method has the advantages of high degradation efficiency, environmental friendliness, low cost and the like, and is a green method for reclaiming the waste and old carbon fiber reinforced epoxy resin composite material.

The invention provides a fast treating device of biodegradable garbage, which mainly comprises a double-layer horizontal type cylinder body, a stirring device, a heating device, a ventilating device, a condensate water-collecting device, a condensate water-recharging device and a biological filtering and deodorizing device, wherein the double-layer horizontal type cylinder body is used for loading garbage; the stirring device is provided with a stirring shaft with a blade, and the stirring shaft is penetrated through the whole cylinder body; the heating device is used for heating up the garbage, leading the temperature of the garbage to be fast raised, and keeping the temperature within a certain range; the ventilating device is used for supplying the oxygen required by the biodegradation of the garbage and carrying out some steam (or steam); the condensate water-collecting device and the condensate water-recharging device are used for removing the generated steam and recharging and replenishing water under the condition that the garbage in the cylinder body is dried; and the biological filtering and deodorizing device is used for removing bad smell generated when biodegrading the garbage. The cylinder body is internally provided with a temperature sensor, a humidity sensor and an oxygen sensor, wherein the sensors are controlled by a garbage automatic control device; and the control device controls the heating device, the ventilating device and a percolate-recharging device according to the detecting values of the sensors. The fast treating device does not need to add strains, can not generate percolate, has fast fermentation speed, generates less bad smell, has no pollution emission, and has high automated operation degree.

The invention discloses a biostimulation method for remediation of oil-polluted soil. In the method, on the premise of not adding an oil pollutant biodegrading bacterial agent, a soil conditioner is added to improve the soil environment, reduce soil stickiness, increase the soil permeability, adjust the water-retaining capacity of the soil, adjust inorganic and organic nutrients necessary for local microbe growth, maintain the pH value of the soil close to neutrality, promote oil pollutant degrading microbes in the soil to grow and propagate, and improve the oil pollutant degrading efficiency of the local microbes; by planting plants, the microenvironment of the soil near root systems of the plants is improved, the plants secrete organics with low molecular weight such as amino acid to the root systems so as to stimulate the massive propagation of the local microbes and indirectly promote oil pollutant degradation by the microbes of the root systems; and the biostimulation method has the advantages of accelerating the remediation of the oil-polluted soil and restoring the original state of the soil.

The invention relates to an integral solar energy photoelectricity water-treatment device comprising an electrode couple or an three-dimensional electrode as well as an electrolytic bath, a storage battery, solar energy battery components and corresponding controllers and an ultraviolet lamp, wherein the electrode couple or the three-dimensional electrode is loaded with photocatalytic materials; the ultraviolet lamp is used for illuminating a photoelectrode; the solar energy battery components convert the received solar light energy to electric energy which is then transmitted and stored in the storage battery so as to supply power for the ultraviolet lamp and/or the electrode couple intermittently or continuously. The invention integrates an optical chemical oxidation process and an electric chemical oxidation process which both generate enhancement and synergetic effects for improving the water treatment efficiency, or the functions of the optical chemical oxidation process and the electric chemical oxidation process can be independently exerted to realize water purification; the invention has the advantages of simple structure, low manufacturing cost, safe and simple operation, easy realization of automation and safe maintenance, driving the entire water treatment process by wholly or partly utilizing the electric energy converted from the solar energy, solving the problem of high dependence on energy sources in a photoelectrocatalytic water treatment process and being capable of not depending on the traditional power grid in service.

The invention relates to a recycling treatment process for coal coking high-salinity wastewater. The process comprises the following steps: (1) fluorine removing; (2) silicon removing; (3) softening;(4) treatment with a multi-medium filter; (5) ultrafiltration; (6) resin softening; (7) FDG; (8) nanofiltration and salt separation; (9) reverse osmosis concentration; (10) advanced oxidation; (11) resin adsorption; and (12) evaporative crystallization. The process has the advantages that the process of pretreatment, nanofiltration salt separation, reverse osmosis concentration, advanced oxidationand evaporative crystallization is adopted, so that zero emission and quality-divided resource utilization of the coal coking high-salinity wastewater are realized.

The invention discloses a novel C3N4/ZnO/Fe2O3 composite photocatalyst and a preparation method thereof. The method comprises the following steps: preparing a carbon nitride (C3N4) catalyst and a ZnO/Fe2O3 catalyst, then mixing according to the proportion, grinding and preparing the C3N4/ZnO/Fe2O3 composite photocatalyst. The novel C3N4/ZnO/Fe2O3 composite photocatalyst has the advantages that the photocatalytic efficiency is high, photocatalysis can be carried out in the range of ultraviolet band and visible light wavelength, the application range is wider, high-efficiency degradation can be carried out on wastewater, especially pollutants in the dye wastewater, the degradation is thorough and the used time is short; the method is simple in operation, mild in reaction condition, does not use toxic and harmful substances as materials, and is green and environment-friendly, thus avoiding secondary pollution.

The invention discloses a nano loaded titanium-based electric catalytic film comprising a conductive microporous separating titanium film matrix and a catalytic coating. Furthermore, the invention also discloses a preparation method of the nano loaded titanium-based electric catalytic film, which comprises the following steps of: (1) preprocessing the titanium film matrix by sand blasting, alkali washing, and acid etching: soaking the matrix after sand blasting in an NaOH solution for 0.5 to 2h, then processing for 1 to 2h in an oxalic acid solution with the mass percent concentration of 10 percent after washing to a neutral state, washing with water and drying at 100 to 120 DEG C; and (2) preparing and loading a catalytic coating: preparing the catalytic coating by adopting a sol-gel method, a thermal decomposition method, an electrodeposition method or a chemical vapor deposition method and loading at the surface of the titanium film matrix and in a hole. Furthermore, the invention also discloses a film reactor comprising the nano loaded titanium-based electric catalytic film. According to the nano loaded titanium-based electric catalytic film, the defects on material strength, range limitation of working voltage, catalytic oxidation efficacy and the like in the prior art are solved.

The invention discloses a magnetic Co ₃ o ₄ The ‑C nanometer material and its preparation method and the application of activated persulfate as a catalyst in wastewater treatment belong to the technical field of water pollution control. In this method, cobalt metal-organic framework compounds are used as precursors, which are calcined at high temperature in a certain atmosphere, and finally magnetic Co ₃ o ₄ ‑C nanomaterials. The porous carbon component in this material not only acts as a carrier of metal oxides to evenly distribute the catalytic sites, but also effectively enriches pollutants in water to improve the degradation efficiency of the system; the magnetic Co in this material ₃ o ₄ The components can be used as heterogeneous catalysts to efficiently activate monopersulfate to generate free radicals to degrade pollutants in water bodies. The method has the characteristics of high efficiency and convenience, wide application range of pH, catalyst recovery by external magnetic field, good recyclability, and environmental friendliness, and has great potential in the actual treatment and application of organic wastewater.

The invention relates to the technical field of harmless treatment of polluted soil microorganisms. In particular, it relates to a microbial harmless treatment method for oil and gas field drilling waste mud. Aspergillus oryzae, Bacillus subtilis, Pseudomonas fluorescens, Acinetobacter calcoacetate and Rhodococcus erythrococcus are respectively cultured in test tubes, shake flasks, Seed tank culture, fermenter culture, and sterilized solid medium culture become solid bacterial agents for production, which are mixed in proportion to solid mixed bacterial agents for production, and the bacterial agents are connected to oil and gas fields to discharge waste mud during drilling, and after uniform stirring, Control the cultivation temperature and time of the microbial harmless treatment of mud, and the above treatment process can be carried out in the abandoned mud pool for drilling in oil and gas fields. Through the growth, reproduction, degradation and transformation of microorganisms in waste mud, the mud can be detoxified, degummed, desalinated and dehydrated, so that the polluted soil environment can be biorestored and the ecological environment can be restored.

The invention relates to the field of chemistry, in particular to the treatment of contaminants. A sulfide-containing industrial wastewater treatment reagent comprises a Fenton reagent containing an iron source and hydrogen peroxide, and also comprises sulfide, wherein the sulfide is mixed in the Fenton reagent to be used as a cocatalyst of the Fenton reagent. Compared with the traditional homogeneous Fenton reaction system, the cheap and readily available sulfide is used as the cocatalyst, so that the catalytic reaction is firstly carried out on the surface of the sulfide to improve the efficiency of decomposition of hydrogen peroxide to generate hydroxyl radicals during the Fenton reaction process and improve the degradation efficiency and the utilization efficiency of the hydrogen peroxide, and the sulfide per se can be recycled, and the problem of producing a large amount of iron sludge by homogeneous Fenton can be avoided, thereby reducing the treatment cost.

The invention relates to a preparation method for magnetic nano biological microspheres for remedying soil polluted by organic chloride durably. The preparation method comprises the following steps of: (1) preparing nano Fe3O4 particles with the surfaces adsorbing amino by a coprecipitation method; (2) dissolving chitosan into an acetic acid solution to form a homogeneous transparent colloidal solution, and mixing and stirring the solution and the nano Fe3O4 particles to obtain the magnetic nano-particles; (3) adding the prepared magnetic nano-particles into a buffering solution of citric acid and performing ultrasonic dispersion to obtain magnetic fluid; and (4) adding the magnetic fluid into a bacterial solution, adding cross-linked fluid dropwise, performing adsorption-cross-linking, and performing solid liquid separation under the action of an external magnetic field to obtain the magnetic nano biological microspheres. The method is quick, simple, convenient and low in cost. The prepared magnetic nano biological microspheres have the characteristics of homogenous shape, large specific surface area, high microbial activity and the like and are applicable to degradation of organic chloride pollutant and in-situ remediation of polluted soil.

The invention discloses a reactor for photoelectrocatalysis degradation of organic compounds using a rotary table supported with a catalyst, and a method for degrading the organic compounds by the reactor. The reactor comprises a rotary table supported with a photo-electro catalytic activity catalyst as the anode of the reactor, a motor driving the rotary table to rotate, a conductive granular activated carbon which can electrically catalyze the oxygen to generate hydrogen peroxide as the cathode, an ultraviolet or visible light source arranged in the reactor. The hydrogen peroxide generated from the activated carbon cathode forms hydroxyl radical under the action of the ultraviolet and degrades the organic compounds around both the anode region and the cathode region; the application of the rotary table avoids the light adsorption of the solution and accelerates the transfer of oxygen in the solution, which obviously improves the catalysis degradation efficiency of the refractory organic compounds.

The present invention discloses a petroleum degrading strain CN-3, which is preserved in China Center For Type Culture Collection, and the accession number is CCTCC M 2015537. A screening medium and a degradation medium used in experiments both use petroleum as a sole carbon source and sole energy, and the screened-out CN-3 strain is highly efficient in petroleum degradation. The petroleum degrading strain CN-3 has good petroleum degradation effect in the neutral to slightly alkaline environment, can withstand high salinity environment, and is especially suitable for the marine environment, so that the range of application of the petroleum degrading strain CN-3 in marine oil pollution treatment is expanded, and the petroleum degrading strain CN-3 has more application prospects.

The invention relates to a bacillus subtilis ANSB01G CGMCC No. 4297 for simultaneously degrading zearalenone and cellulose and a culturing method thereof. The invention also relates to a method for degrading the zearalenone and the cellulose by using a fermentation liquor of a bacterial strain; by using the method, the degradation rate of the zearalenone can reach 83% while the zearalenone reacts with the bacillus subtilis for 72 hours; and the enzyme activity of the cellulose of the fermentation liquor of the bacillus subtilis is 198.9 U/g. The bacillus subtilis provided by the invention has the advantages of high activity, strong specificity, mild action effect and no damage to nutrition constituents in a feed during degrading the zearalenone; moreover, by using the bacillus subtilis, the cellulose can be also degraded to increase the feed conversion rate.

The invention discloses a method for treating an organic waste gas through low-temperature plasma concerted catalysis. The treating steps are as follows: (1) pre-treating the organic waste gas to be treated, using manners of water cooling and filtering to perform cooling, dust removal and dehumidification on the organic waste gas; (2) sending the pre-treated organic waste gas into a low-temperature plasma concerted catalysis area, decomposing the organic waste gas by using low-temperature plasma concerted catalysis, and generating harmless micro-molecules; (3) sending the gas treated in the low-temperature plasma concerted catalysis area into an adsorption reaction area, and adsorbing organic molecules and high energy molecules which are not completely reacted by using an adsorbent, so as to further oxidize and decompose the organic molecules; (4) discharging the pollution-free gas after decomposing and oxidization through a discharge tower. The method has high purification efficiency on the organic waste gas, is good in effect, is less affected by various environments and external conditions, and especially has high purification efficiency on the organic waste gas with high flow, low concentration, and complex composition.

The invention relates to water deep treatment technology of heterogeneous catalytic ozonation depollution. With the combination of catalytic ozonation depollution technology with membrane filtration technology, a novel, high-efficient, and economical catalytic ozonation water deep treatment technology is provided, which combines the advantages of the two technologies, overcomes their disadvantages, effectively improves the ozone utilization rate and the ozone oxidation capability, reduces some toxic and harmful substances generated due to incomplete oxidation, alleviates the problem of ceramic membrane contamination, and prolongs the system operation period. An experiment device mainly comprises three parts: an ozone generation device, a ceramic membrane device, and a computer data acquisition and analysis system; an ozone outlet of the ozone generation device is connected with a water inlet valve of the ceramic membrane assembly through a silicone flexible pipe to realize the coupling of the two system. The method of the invention can improve the purifying effect of routine water treatment technology, and provides novel, high-efficient and cheap water deep treatment technology for enhanced removal of low-concentration high-toxicity refractory organic pollutants in water.

The invention discloses a preparation method of BiVO4-BiOBr photocatalyst has a visible-light response, wherein the catalyst may be used under visible light, ultraviolet light, or sunlight. The preparation method of BiVO4-BiOBr photocatalyst that is in a multilevel nest-like nanostructure and is formed by nanosheets is: heating for 8 to 24 h under an alcohol-heating temperature of 100 to 200 DEG C with pH of 5 to 10. The catalyst of the invention can decompose water-soluble organic pollutant containing chlorine and sulfur, water-soluble organic pollutant of azo, xanthene, and anthraquinone type, and biological contaminant microcystic toxins generated by harmful algal bloom.

The invention belongs to the technical field of bioremediation of marine oil pollution, and relates to an immobilized algal-bacterial symbiotic system for processing petroleum pollutants. The immobilized algal-bacterial symbiotic system is prepared by the following steps: (1) selection and axenic cultivation of algae species, firstly carrying out lysozyme and sodium dodecyl sulfate (SDS) sterile pretreatment on chlorella algae fluid, and then inoculating into a BG11 culture solution containing antibiotics to carry out sterile cultivation, so as to obtain sterile chlorella algae fluid for later use; (2) selection and cultivation of petroleum degrading bacteria; (3) preparation of composite carrier bacteria algae gel balls, namely immobilizing the sterile chlorella algae fluid obtained in the step (1) and the petroleum degrading bacteria obtained in the step (2) by adopting sodium alga acid and polyvinyl acetate (PVA) as immobilized carriers, and finally obtaining the immobilized algal-bacterial symbiotic system. The immobilized algal-bacterial symbiotic system can float on the water to carry out degradation of petroleum pollution, and is free of secondary pollution, free of toxic action on microorganisms, rapid in reaction speed, stable and reliable in operation, less in microorganism loss, and free of separation.