31results about How to "Helps purify" patented technology

The invention provides a toothbrush hair having an anti-bacterial and health-caring function and a preparation method thereof. The toothbrush hair includes the following raw materials, by weight, 75-90% of a polymer, 3-20% of a natural anti-bacterial agent, 1.8-3% of pomegranate seed oil, and 1.2-2% of a coupling agent. The natural anti-bacterial agent is prepared from following components comprising, by weight, 75-90% of loess powder, 4-10% of an extract of commelina communis, 3.5-9% of an extract of herba houttuyniae and 2.5-6% of an extract of caryopteris incana. By means of the technical scheme, the toothbrush hair is produced through various process methods. The toothbrush hair is wide in anti-bacterial spectrum, is high and durable in efficiency and is safe to use, has excellent light-prevention, wear-resistant and aging-resistant performance, has the health-caring effect of increasing fragrance and protecting teeth, is beneficial to environment cleaning and odor eliminating, has the effects of preventing and controlling decayed tooth and periodontal diseases, is good in anti-dirt property, rebound elasticity, flexibility and hydrophobicity, is free of deformation, is long in service life, is low in production cost and is easy to popularize.

The invention discloses a method for breeding crucian in a pond. The method comprises the steps of preprocessing of the pond, preparation before stocking, feed putting and feeding, health breeding management, moderate fishing and the like. The method for breeding crucian in the pond is convenient and easy to implement, low in breeding cost and high in output benefit. Through reasonable stocking of bighead carp, water is purified, the breeding quality of crucian is improved, and breeding benefits are increased.

The invention provides an additive for cooling water and antifreeze of a radiator for improving performance of conveying equipment, and antifreeze prepared by adding the additive. The additive contains tourmaline powder, medical stone, germanium and rare earth metals such as lanthanum, cerium, neodymium etc., hydrogen is produced via lanthanum (La), cerium (Ce) and neodymium (Nd) with hot water in cooled one, the produced hydrogen is stored in iron-titanium alloy, and the stored hydrogen is dispersed again with a function of power storage by the circulation. The invention is capable of saving fuels and reducing purged gas. Furthermore, the invention makes for cleaning up environment, decreasing noises, improving effect of combustion ratio and implementing the performances for maintaining electrostatic pressure and reducing static electricity, having a function of cleaning internal air of vehicles during a process of oxidizing and restoring repeatedly.

The invention discloses a polymeric adsorbent for removing formaldehyde and a preparation method and applications of the polymeric adsorbent. The preparation method is to prepare the cross-linked melamine resin based on the property of the melamine that primaquine is contained and the periodic acid Schiff reaction can be carried out with the formaldehyde. The polymeric adsorbent is uniform in structure and is capable of achieving the purpose of absorbing the formaldehyde with a high adsorption quantity by absorbing through a hydrogen bond, enriching formaldehyde molecules, and carrying out the periodic acid Schiff reaction with the formaldehyde. The polymeric adsorbent has high absorption quantity of the formaldehyde, and is not needed to be regenerated frequently, so that the total cost is low. The polymeric adsorbent for absorbing the formaldehyde is beneficial for treating the pollution of the formaldehyde in a room and purifying the wastewater with formaldehyde contained. The polymeric adsorbent for removing the formaldehyde has the chemical structure shown as follows.

A preparation method for garbage enzyme comprises the following steps: putting fruits and / or vegetable, as well as water and saccharides into a closed container according to a ratio, fermenting for 3 to 6 moths, filtering, and taking clear liquid after the filtering, thus obtaining the garbage enzyme, wherein the garbage enzyme is formed by mixing and fermenting according to the volume ratio that the fruits and / or the vegetables : the water : the saccharides is equal to 1: (2 to 4) : (8 to 12). A preparation method for an algal bloom inhibitor comprises the following step: adding water to dilute the garbage enzyme prepared by the preparation method for the garbage enzyme, thus obtaining the algal bloom inhibitor. The algal bloom inhibitor has a remarkable effect of inhibiting alga growth, contributes to aquatic ecological environment purification and water body self-recovery, and has a perfect improving effect on water quality; the preparation methods for the garbage enzyme and the algal bloom inhibitor are simple, low in cost, easy for industrialized operation, and capable of avoiding secondary pollution.

The invention relates to an application of garbage enzyme in the aspect of controlling lake algal bloom hazard. The garbage enzyme has an effect of inhibiting TN abnormal increase caused by algae proliferation, or the garbage enzyme has an effect of inhibiting pH abnormal increase caused by algae proliferation, or the garbage enzyme has an effect of improving water environment water quality under an algae proliferation effect. The invention also relates to an application of the garbage enzyme in preparing an algal bloom inhibitor. The garbage enzyme is prepared from fermenting fruit and / or vegetable, water and saccharide in a sealed container. The algae is microcystis aeruginosa, scenedesmus quadricauda and / or navicula rhynchocephala. According to the invention, garbage enzyme is first used in preventing lake algal bloom hazard, and has a significant effect in inhibiting algae growth. Also, the garbage enzyme / algal bloom inhibitor has the advantages of simple preparation method and low cost. The method is suitable for industrialized operations. With the garbage enzyme / algal bloom inhibitor, secondary pollution is avoided.

The invention relates to an inelastic lace trimming and a production method of the inelastic lace trimming. A lace layer is combined on inelastic fabric and is formed by weaving polyester and nylon composite yarn and modified nylon yarn, and the mass ratio of the polyester and nylon composite yarn to the modified nylon yarn is 1:1. The production technology is simple in process, and large-scale industrial production can be carried out. The polyester and nylon composite yarn has the weaving and dyeing performance of both polyester and nylon and can be twisted together for weaving production, and thus the polyester and nylon composite yarn not only can show special texture and metal brilliance of metal wires but also is softer and comfortable than the metal wires. Meanwhile, the hard texture of the inelastic trimming can be shown better, and the lace trimming is inelastic fabric and can be widely applied.

The invention provides a photocatalyst capable of utilizing not only an ultraviolet light, but also a visible light, to use the photocatalyst in the decomposition treatment of a harmful chemical in a gas phase or a liquid phase, and to provide a means for converting a harmful material into a harmless one by the use of the photocatalyst. A photocatalyst which comprises a composite oxide semiconductor represented by the general formula: BaBixOy [wherein x and y are 0.5 < x <2, and 2.5 < y < 4] as a catalyst component; and the above subject can be solved using the photocatalyst.

The invention relates to a purifier for regional pollution caused by motor vehicle exhaust. By means of intercoordination among modules in the purifier, the purifying effect can be improved, and the requirement for a catalytic material can be reduced. The electrostatic dust removal module generates ozone, which is beneficial for purifying carbon monoxide, oxynitride and hydrocarbons; the pollutant purifying module consumes ozone to avoid secondary pollution; a heater can adjust the temperature to improve the effect of a carbon monoxide purifying material, and the requirement for the purifying material is reduced. An induced draft fan, an airflow distributor, the heater, the electrostatic dust removal module and the pollutant purifying module are installed in a shell; the control module achieves the purifying control process, and an operator can adjust working parameters through a control element on the shell. The induced draft fan sucks polluted air, after passing through the airflow distributor, the air first passes through the electrostatic dust removal module to remove dust, then passes through the airflow distributor again, and then enters the pollutant purifying module to purify pollutants, and finally the clean air after being purified is exhausted to the atmosphere.

The invention relates to a landscape ecological treatment system which is characterized in water distribution ditch and wetland bed multisection design. The landscape ecological treatment system comprises a pretreatment system, an anaerobic fermentation tank, a water distribution ditch, a wetland bed, a water collection ditch (9), a water distribution system and a system filler, wherein the pretreatment system comprises a coarse artificial grid and a fine artificial grid; the anaerobic fermentation tank comprises an anaerobic tank first section (1) and an anaerobic tank second section (2); the water distribution ditch comprises a water distribution ditch A (3), a water distribution ditch B (4) and a water distribution ditch C (5); the wetland bed comprises a wetland bed A (6), a wetland bed B (7) and a wetland bed C (8); the first section water distribution ditch and the first section wetland bed are arranged outside the anaerobic tank; and the water collection ditch (9) is arranged at the outermost end. In the water distribution ditch of the system, the water distribution system is arranged in the tank, the effluent water of the anaerobic tank is uniformly distributed into the wetland beds of the landscape ecological treatment system through the water distribution system, the water distribution ditch and wetland bed are designed in a multisection mode, the sewage stays in the landscape ecological treatment system for about 5-7 days, the effluent water of the system enters the water collection ditch, and the sewage of the water collection ditch is discharged after reaching the standard.

The invention discloses an efficient ecological culture method of black carps. The efficient ecological culture method is characterized by comprising the following steps: 1, pond treatment: reconstructing a pond to build a modern ecological pond; 2, fingerling stocking: selecting a suitable stocking density to stock black carp fingerlings, and stocking silver carp fingerlings and bighead carp fingerlings together with the black carp fingerlings; 3, feed feeding: feeding feeds by adopting a fixed point feeding mode, feeding floating pellet feeds, and controlling the feeding amount, the feeding time and the feeding temperature; and 4, culture management: paying attention to oxygenating, improving the water quality, maintaining the water depth and preventing diseases. The culture method optimizes the culture mode, improves the culture environment, and effectively improves the yield and the quality of the black carps and bighead carps raised together, thereby improving the culture benefits and the ecological benefits.

The invention discloses a mink canine parvovirus enteritis pathogen antigen colloidal gold detection test strip and a production method thereof, and relates to the technical field of detection of fur animal viral infectious disease pathogens. The colloidal gold detection test strip comprises a sample pad, a colloidal gold pad, an NC film and an absorption pad, the detection line of the NC film is sprayed with a VP2 protein, and the quality control line of the NC film is sprayed with a goat-anti-mouse second antibody. The production method of the mink canine parvovirus enteritis pathogen antigen colloidal gold detection test strip mainly comprises the following steps: carrying out prokaryotic expression to obtain mink parvovirus (MEV) VP2 and VP1 proteins, and purifying the proteins; preparing an MEV monoclonal antibody; preparing a colloidal gold solution; preparing a colloidal gold antibody solution; preparing the colloidal gold pad; preprocessing the NC film; and assembling. The test strip is helpful for purifying the mink canine parvovirus enteritis in fur animal culturing farms, and is convenient for basic veterinary personnel to operate.

The invention belongs to the field of social anti-poison and anti-epidemic methods and protective masks. Air with viruses, bacteria, poison gas and dust is sequentially filtered and disinfected by a filtering and disinfecting module of the breathing gas filtering and disinfecting cleaner, adsorbed and filtered by an adsorption and filtering module, assisted by a drug prevention and treatment module to moisten the lung and detoxify, added with negative oxygen ions by a negative oxygen ion module and filtered by an ultrafine filtering module at the bottom; therefore, high-cleanness beneficial air is conveyed to the invisible mask on the face, and it is guaranteed that inhaled air is clean and safe; the exhaled air is disinfected and filtered, so that infection of virus carriers to surrounding people is prevented. The invisible mask is small, exquisite, attractive and comfortable, and the wearing protection problem of people in daily work and life can be well solved; by adopting multipletechnologies such as functional modularization, chromatography filtration and desorption, the mask is wide in application, long in service life and low in average daily cost, and is mainly used for social poison prevention, epidemic prevention, flu prevention, haze prevention, industrial and mining dust prevention, household fire protection, formaldehyde removal and the like.

The invention discloses an ecological slope protection system produced by applying soil-retaining bricks. The ecological slope protection system comprises a levee slope, wherein a foundation protection wall is arranged at the slope toe of the levee slope; a slope protection wall is laid on the slope of the levee slope; a road shoulder is arranged at the junction of the top of the foundation protection wall and the bottom of the slope protection wall; water filter ditches parallel to the slope protection wall are equidistantly formed in the slope protection wall; a water filter well is arranged at a position close to the road shoulder, on the bottom of the slope protection wall; a greening path is laid at the levee crown of the levee slope; a road shoulder is laid at the junction of the top of the slope protection wall and the greening path; water filter ditches parallel to the greening path are equidistantly formed in the greening path and correspondingly communicate with the water filter ditches in the slope protection wall; and a plurality of ecological tree pools are further formed in the greening path. With the adoption of a self-embedded water filter brick structure, the ecological slope protection system disclosed by the invention is simple, convenient and fast to construct, high in firmness, remarkable in greening effect, and low in comprehensive cost compared with a traditional soil-retaining wall.

The invention discloses an intelligent control negative oxygen ion air purifier. The intelligent control negative oxygen ion air purifier comprises an Internet intelligent controller and a total heat exchanger. The total heat exchanger comprises a shell, an air inlet fan, an air return fan, a heat exchange device and a filter screen. The intelligent control negative oxygen ion air purifier is simple in structure; due to the fact that the total heat exchanger is arranged at the central position of the inside of the shell and divides the inside of the shell into four parts, the gas heat exchange area can be better increased, and the heat exchange quality of the intelligent control negative oxygen ion air purifier is improved; air can be better purified by arranging an oxygen anion generator in a fresh air inlet; and by the adoption of the Internet intelligent controller, the intelligent control negative oxygen ion air purifier can be adjusted under the different setting conditions of keys, the air inlet fan, the air return fan and the oxygen anion generator are all electrically connected with a control chip, the control chip can control different operations of the intelligent control negative oxygen ion air purifier according to different settings by users, and operability of the intelligent control negative oxygen ion air purifier is improved.

A method of biological treatment for organic sewage. An aeration tank for performing of active sludge treatment is partitioned into a raw water inflow part and a part understream of the raw water inflow part. A material having a microorganism attached thereto is immersed in the raw water inflow part, and the BOD volume load on the material having a microorganism attached thereto is set for 1 kg / (m3day) or more.

A preparation method for garbage enzyme comprises the following steps: putting fruits and / or vegetable, as well as water and saccharides into a closed container according to a ratio, fermenting for 3 to 6 moths, filtering, and taking clear liquid after the filtering, thus obtaining the garbage enzyme, wherein the garbage enzyme is formed by mixing and fermenting according to the volume ratio that the fruits and / or the vegetables : the water : the saccharides is equal to 1: (2 to 4) : (8 to 12). A preparation method for an algal bloom inhibitor comprises the following step: adding water to dilute the garbage enzyme prepared by the preparation method for the garbage enzyme, thus obtaining the algal bloom inhibitor. The algal bloom inhibitor has a remarkable effect of inhibiting alga growth, contributes to aquatic ecological environment purification and water body self-recovery, and has a perfect improving effect on water quality; the preparation methods for the garbage enzyme and the algal bloom inhibitor are simple, low in cost, easy for industrialized operation, and capable of avoiding secondary pollution.

The application of an environmentally friendly enzyme in the prevention and control of algal blooms in lakes. Wherein, the environmental protection enzyme has the effect of inhibiting the abnormal increase of TN caused by algae proliferation; or, the environmental protection enzyme has the effect of inhibiting the abnormal increase of pH caused by algae proliferation; or, the environmental protection enzyme has Improve the water quality of the water environment. And an application of an environment-friendly enzyme in the preparation of an algal bloom inhibitor, wherein the environment-friendly enzyme is prepared by putting fruits and / or vegetables, water, and carbohydrates in proportion to fermentation in a closed container. The algae are Microcystis aeruginosa, Scenedesmus tetracerus and / or Navicula rhinocephalum. The present invention finds that the environmentally friendly enzyme is used for the first time to prevent and control the harm of algal blooms in lakes, and has a significant effect on inhibiting the growth of algae; in addition, the preparation method of the environmentally friendly enzyme / algal bloom inhibitor is simple, low in cost, easy to industrialized operation, and can also avoid the occurrence of Secondary pollution.

The invention discloses a novel faucet, and belongs to the technical field of bathroom accessories. By adoption of the novel faucet, the problem that a water-purification filter element assembly of anexisting temperature-adjustable faucet is inconvenient to install is solved. The novel faucet is technologically characterized in that the novel faucet comprises a faucet body and a ceramic valve element mounted in the faucet body. A hot water port and a cold water port are formed in the bottom of the ceramic valve element. The faucet body is connected with a hot water pipe communicating with thehot water port and a cold water pipe communicating with the cold water pipe. The faucet body is provided with a filter piece, and the filter piece is located below the ceramic filter element and abuts against the bottom of the ceramic valve element in a sealing mode. The filter piece is provided with a hot water channel communicating between the hot water port and the hot water pipe and a cold water channel communicating between the cold water port and the cold water pipe. Filter assemblies are arranged in the hot water channel and the cold water channel. The novel faucet is provided with thefilter piece which is convenient to mount and dismount, so that the quality of water in the novel faucet is improved, and mounting and dismounting of the novel faucet are facilitated.

The invention discloses a spin-type large-rotation spray dust-reduction spray rack, which includes a shaft tube. One end of the shaft tube is perpendicular to the shaft tube and a support tube that can rotate at the end of the shaft tube is installed. The support tube is arranged symmetrically with respect to the shaft tube. A plurality of spray heads are distributed on the support tube, wherein the spray heads located at both ends of the support tube face opposite. Use this device technology to spray and reduce dust in dust-producing places, quickly extinguish the source of dust generation, control and prevent dust from spreading and polluting the environment; in the area where the installation is controlled, it can humidify the air in the regional environment to help air purification; due to the device The coverage area is large, and the spray fluid has an auxiliary cooling effect in the installation control area in hot summer; the installation method is flexible, and can be divided into indoor installation and open-air installation, without affecting ground traffic; reasonable structure, strong structural strength, strong wind resistance, open-air installation design There are lightning protection devices.

The invention discloses a novel faucet, and belongs to the technical field of bathroom accessories. By adoption of the novel faucet, the problem that a water-purification filter element assembly of anexisting temperature-adjustable faucet is inconvenient to install is solved. The novel faucet is technologically characterized in that the novel faucet comprises a faucet body and a ceramic valve element mounted in the faucet body. A hot water port and a cold water port are formed in the bottom of the ceramic valve element. The faucet body is connected with a hot water pipe communicating with thehot water port and a cold water pipe communicating with the cold water pipe. The faucet body is provided with a filter piece, and the filter piece is located below the ceramic filter element and abuts against the bottom of the ceramic valve element in a sealing mode. The filter piece is provided with a hot water channel communicating between the hot water port and the hot water pipe and a cold water channel communicating between the cold water port and the cold water pipe. Filter assemblies are arranged in the hot water channel and the cold water channel. The novel faucet is provided with thefilter piece which is convenient to mount and dismount, so that the quality of water in the novel faucet is improved, and mounting and dismounting of the novel faucet are facilitated.

The invention discloses an underground stuffy pool structure for physical purification of domestic sewage, comprising a sewage pool, a cutting knife is arranged on the outer side of the turntable, a stirrer is installed on the bottom of the turntable, an electromagnetic heating coil is arranged on the inner wall of the heating chamber, and an air inlet fan and An oxygen-enriched membrane is arranged between the air pipes, the water pump and the sedimentation chamber are connected through a connecting pipe, and a filter screen is arranged between the connecting pipe and the sedimentation chamber. The invention drives the turntable to rotate by the drive motor through the rotating rod, which facilitates the high-speed rotation of the cutting knife on the outside of the turntable and the agitator at the bottom of the turntable, prevents the stains in the sewage from clogging the water inlet pipe, and improves the stains in the sewage by raising the temperature. Decomposition rate, improve sewage purification efficiency, make sewage purification more comprehensive, and through the input of oxygen, domestic sewage can be separated from oil and water, and it can also accelerate the rapid reproduction of aerobic microorganisms in the sedimentation chamber in an oxygen-enriched environment, improve the decomposition rate, and more Facilitate the discharge of sewage.

The invention belongs to the technical field of candy processing and particularly relates to pickled pepper-shelled shrimp crispy candies capable of warming and nourishing stomach. The crispy candies are prepared from the following raw materials in parts by weight: 58-68 parts of shelled shrimps, 16-18 parts of pear flowers, 2-3 parts of semen litchi, 3-4 parts of common salt, 8-9 parts of pickled peppers, 77-87 parts of shelled peanuts, 15-17 parts of walnut kernels, 0.23-0.25 part of locust bean gum, 0.32-0.36 part of cepharanthine, 0.03-0.05 part of starch hydroxypropyl diphosphate, 0.53-0.57 part of pagodatree flower bud extract, 0.34-0.36 part of endothelium corneum gigeriae galli extract, 11-12 parts of coconut oil and 150-170 parts of soak solution. According to the pickled pepper-shelled shrimp crispy candies capable of warming and nourishing the stomach, the shelled shrimps serve as a main raw material, the nutrition is rich, the color and luster are uniform, the flower fragrance is fresh, and the crispy candies are crispy, are not sticky to teeth, are free of fracturing, are free of crumb falling and have the health-care effects of warming and nourishing the stomach, promoting milk secretion, soothing liver and regulating Qi, reducing blood fat and promoting blood circulation.

The invention discloses a colloidal gold detection test strip for the pathogen antigen of mink parvovirus enteritis and a preparation method thereof, and relates to the technical field of detection of fur animal viral infectious disease pathogens. The colloidal gold detection test strip of the present invention comprises: a sample pad, a gold standard pad, an NC film and an absorption pad, the detection line of the NC film is sprayed with VP2 protein, and the quality control line of the NC film is sprayed with goat anti-mouse II anti. The preparation method of the colloidal gold detection test strip for mink parvovirus enteritis pathogen antigen of the present invention mainly comprises the following steps: prokaryotic expression of mink parvovirus (MEV) VP2 and VP1 proteins and purification thereof; mink parvovirus (MEV) monoclonal antibody preparation of colloidal gold solution; preparation of gold-labeled antibody solution; preparation of gold-labeled pad; pretreatment of NC membrane; assembly. The invention helps fur animal farms to purify mink parvoviral enteritis and facilitates the operation of grassroots veterinary personnel.

The invention discloses a method for improving an aquaculture environment. The method for improving the aquaculture environment mainly comprises the three steps of cleaning the bottom of a pond and using electrified water to conduct sterilization treatment, making the bottom of the pond paved with a pond bottom material and spraying expanded vermiculite suspension liquid, throwing composite microorganisms and composite active enzyme after water is injected, the three steps are indispensable, and cannot be reversed, every step goes forward one by one, all the steps are are linked with one another, and therefore the aquaculture environment is improved.

The invention relates to an inelastic lace trimming and a production method of the inelastic lace trimming. A lace layer is combined on inelastic fabric and is formed by weaving polyester and nylon composite yarn and modified nylon yarn, and the mass ratio of the polyester and nylon composite yarn to the modified nylon yarn is 1:1. The production technology is simple in process, and large-scale industrial production can be carried out. The polyester and nylon composite yarn has the weaving and dyeing performance of both polyester and nylon and can be twisted together for weaving production, and thus the polyester and nylon composite yarn not only can show special texture and metal brilliance of metal wires but also is softer and comfortable than the metal wires. Meanwhile, the hard texture of the inelastic trimming can be shown better, and the lace trimming is inelastic fabric and can be widely applied.

The invention provides an additive for cooling water and antifreeze of a radiator for improving performance of conveying equipment, and antifreeze prepared by adding the additive. The additive contains tourmaline powder, medical stone, germanium and rare earth metals such as lanthanum, cerium, neodymium etc., hydrogen is produced via lanthanum (La), cerium (Ce) and neodymium (Nd) with hot water in cooled one, the produced hydrogen is stored in iron-titanium alloy, and the stored hydrogen is dispersed again with a function of power storage by the circulation. The invention is capable of savingfuels and reducing purged gas. Furthermore, the invention makes for cleaning up environment, decreasing noises, improving effect of combustion ratio and implementing the performances for maintaining electrostatic pressure and reducing static electricity, having a function of cleaning internal air of vehicles during a process of oxidizing and restoring repeatedly.

The invention belongs to the field of industrial waste treatment, and relates to a method and a device for regenerating desulfurizing agents and sulfur serving as a by-product in magnesium desulfurization. The device comprises a magnesium sulfite storage bin, a fluidized bed calcining unit, a fluidized bed carbon thermal reduction unit and a sulfur recovery unit, the fluidized bed calcining unit comprises a fluidized bed calcining furnace, a calcining furnace high-temperature separator and an incinerator, the magnesium sulfite storage bin is connected with the lower portion of the fluidized bed calcining furnace, the bottom of the fluidized bed calcining furnace is connected with the incinerator, a top decomposition gas outlet of the fluidized bed calcining furnace is connected with the calcining furnace high-temperature separator, the fluidized bed carbon thermal reduction unit comprises a fluidized bed carbon thermal reduction tower and a reduction tower high-temperature separator, atop magnesium removal decomposition gas outlet of the calcining furnace high-temperature separator is connected with the bottom of the fluidized bed carbon thermal reduction tower, a top reduction gas outlet of the fluidized bed carbon thermal reduction tower is connected with the reduction tower high-temperature separator, and the reduction tower high-temperature separator is connected with themagnesium sulfite storage bin. Magnesium sulfite decomposition rate is higher than 99%, and the purity of recovered sulfur reaches 99.7% or more.

The present invention discloses a porcine CSFV-PCV duplex DNA vaccine, comprising an expression vector into which a gene E2 encoding CSFV structural protein E2, a gene Erns encoding CSFV structural protein Erns, and a PCV-2 immune protein Cap are inserted The gene Cap and the gene Rep encoding the PCV-1Rep protein. The vaccine can express E2, Erns, Cap and Rep proteins in vivo by immunizing animals by subcutaneous injection, and induce the body to produce higher levels of antibodies, thereby preventing and controlling the infection and prevalence of CSFV and / or PCV‑2 and Mixed cross-infection avoids the occurrence of other diseases caused by mixed infection of CSFV and PCV‑2; and the vaccine helps to purify CSFV and PCV‑2 strains in pig farms. The invention also discloses the preparation method of the vaccine, the preparation process is simple and the use is safe.

The invention discloses tungstate ionic liquid, a preparation method thereof and application of the tungstate ionic liquid in catalytic oxidation degradation of phenol and derivatives thereof in wastewater. The preparation method of the tungstate ion liquid comprises the following steps: mixing sodium tungstate with a silver nitrate aqueous solution for reaction to obtain silver tungstate, mixing the obtained silver tungstate with the ion liquid for reaction, filtering after the reaction is ended, and concentrating, washing and drying the obtained filtrate to obtain the tungstate ion liquid. The tungstate ion liquid is used as a catalyst for oxidative degradation reaction. The method for catalytically oxidizing and degrading phenol and / or derivatives thereof by adopting the tungstate ionic liquid comprises the following steps: mixing phenol and / or derivatives thereof or wastewater containing phenol and / or derivatives thereof with the tungstate ionic liquid and hydrogen peroxide, and reacting to oxidize and degrade phenol and / or derivatives thereof. The tungstate ionic liquid can purify high-concentration phenol-containing wastewater, only the ionic liquid and water are generated after reaction, and the ionic liquid and the water can be recycled.