268results about How to "Efficient purification" patented technology

The invention relates to an organic wastewater photocatalytic rotational flow enhanced hydrogen production method and device, and provides an organic wastewater photocatalytic rotational flow enhanced hydrogen production method, which comprises the following steps: (A) shear oscillation mixing of a catalyst and wastewater, (B) wastewater rotational flow oscillation photocatalytic hydrogen production, and (C) gas-liquid-solid three-phase separation and catalyst reuse. The invention further provides an organic wastewater photocatalytic rotational flow enhanced hydrogen production device. Organic matter pollutants in water are decomposed under the action of the catalyst, chemical energy of the organic matter pollutants is recycled in the form of hydrogen, cooperation of wastewater photocatalytic hydrogen production and wastewater treatment is achieved, the reaction rate of wastewater photocatalytic hydrogen production is increased, and secondary pollution caused by the reaction catalyst is avoided.

The invention discloses an oil gas dust removal and purification system capable of intelligently sensing and adjusting air volume and pressure balance. The oil gas dust removal and purification system comprises an intelligent monitoring and control module based on a system architecture, an air volume optimization and dust removal processing module and a pressure management and safe discharge module, and the intelligent monitoring and control module comprises an environmental data acquisition module and an intelligent decision and execution module; the air volume optimization and dust removal treatment module comprises an air volume intelligent adjusting module and an efficient dust removal and filtering module. Compared with the prior art, the system has the advantages that the air volume and the pressure are intelligently adjusted; efficient dust removal and purification are realized; and the safety performance is improved.

The invention discloses a monatomic catalyst for activating peroxymonosulfate as well as a preparation method and application of the monatomic catalyst. The catalyst comprises a nitrogen and sulfur co-doped Ti3C2Tx nanosheet and an iron monatomic or cobalt monatomic targeted on the nanosheet in an asymmetric coordination structure. The preparation method comprises the following steps: mixing the Ti3C2Tx nanosheet, a precursor containing a nitrogen source and a sulfur source, and soluble metal salt, self-assembling, freeze-drying and pyrolyzing. The monatomic catalyst provided by the invention has excellent conductivity and electronic structure, can form a large amount of reactive oxygen species in a catalytic degradation system on the premise of low addition amount of peroxymonosulfate, and has the advantages of high activation efficiency on peroxymonosulfate, capability of effectively reducing the usage amount of peroxymonosulfate and the like; the peroxymonosulfate can be activated to achieve efficient purification of organic wastewater, the operation cost of the peroxymonosulfate activation technology can be effectively reduced, and meanwhile, the new environmental pollution risk caused by the fact that a large amount of peroxymonosulfate is used can be remarkably reduced.

The invention discloses a compact magnetic deflection system for neutral beam injection. The compact magnetic deflection system comprises an iron yoke assembly, two magnet assemblies with the same structure and a magnet protection assembly, the iron yoke assembly is of a rectangular frame structure and forms a complete magnetic loop, the two magnet assemblies are oppositely arranged in the iron yoke assembly, and a channel is reserved between the two magnet assemblies. The magnet protection assembly surrounds the two magnet assemblies; the magnet assembly comprises a magnet exciting coil box, an iron core and an electrified coil, two space grooves are formed in the excitation coil box in a rectangular-ambulatory-plane mode, the iron core is located in the space groove in the inner layer, the electrified coil is located in the space groove in the outer layer, and the head end and the tail end of the electrified coil extend out of the side edge of the excitation coil box in the same direction; charged ions flexibly deflect out of an original beam line channel by changing the current of the electrified coil or the number of turns of the coil. According to the invention, mixed charged ion beams can be effectively filtered out, and purified neutral beam injection is realized.

The invention provides a calcium fluoride sludge purification method, calcium fluoride fine powder and application thereof, and belongs to the field of calcium fluoride sludge treatment.The calcium fluoride sludge purification method comprises the following steps that calcium fluoride sludge and water are mixed to form a first mixed solution, a phosphate conversion agent is added, heating and stirring are conducted, and then filtering is conducted to obtain a first solid mixture; adding an acid solution into the first solid mixture, heating, stirring and filtering to obtain a second solid mixture; and water, an inhibitor, a collecting agent and a foaming agent are sequentially added into the second solid mixture to form a third mixed solution, flotation is conducted, and calcium fluoride fine powder is obtained. Impurity elements can be removed through combination of phosphate conversion and a flotation method, and compared with a method for removing calcium phosphate and calcium sulfate through a chemical treatment method, the reagent dosage is greatly reduced, the temperature needed by conversion is low, the conversion time is short, and the cost is low.

The invention relates to the technical field of mineral resource recovery and environment-friendly beneficiation, and discloses a method for recovering phosphorite from micro-fine fraction tailings, which comprises the following steps: grading by a cyclone: micro-fine fraction ore pulp is introduced into the cyclone for grading, an overflow product enters an overflow pipe, and a sand setting product enters a subsequent desulfurization flotation process; carrying out copper-sulfur separation flotation: carrying out dehydration treatment on the crude copper concentrate obtained after desulfurization, and then entering a copper-sulfur separation flotation process to separate out copper fine powder and sulfur fine powder; the desulfurized minerals enter the micro-fine particle grade phosphorus selection process, the flotation process of one-roughing, one-sweeping and four-concentrating is adopted, and phosphorus concentrate is selected. According to the method, high-efficiency purification of copper and sulfur concentrates is achieved and tailing pollution is reduced through concentration classification of a cyclone, impurity removal of an inclined plate, desulfurization flotation and copper-sulfur separation flotation, in the phosphorite recycling process, the flotation process of one-time roughing, one-time sweeping and four-time concentration is adopted, automatic control equipment is arranged, and the recycling rate and purity of the phosphate concentrates are remarkably improved.

The invention relates to the field of environmental chemistry and biological sample analysis, in particular to an analysis method for detecting oxidative stress biomarkers in urine. The analysis method capable of simultaneously detecting dityrosine, 8-hydroxyguanosine, 8-hydroxydeoxyguanosine and 4-hydroxynonenal mercaptouric acid in human urine is provided on the basis of liquid chromatography-tandem mass spectrometry, effective purification of a urine sample is achieved through specific pretreatment, the matrix effect is reduced, and the detection sensitivity is improved. And specific liquid chromatogram parameter conditions are combined, so that simultaneous detection of the four oxidative stress biomarkers is realized. The method is good in selectivity, high in sensitivity and high in detection speed, the problem that polar and non-polar components cannot be measured at the same time at present is solved, the contained oxidative stress biomarkers are more comprehensive and more reasonable, and the oxidative stress damage condition of the organism can be better reflected.

The invention belongs to the technical field of chemical engineering, and particularly provides a crude n-butyl alcohol purification method and system.The purification method comprises the steps that crude n-butyl alcohol to be purified is input into a dehydration device, dehydration is conducted through membrane separation, and a first mixture is obtained; after preheating, carrying out hydrogenation reaction under the action of a catalyst to obtain a second mixture; performing reduced-pressure flash evaporation on the second mixture in a gas-liquid separation tank to obtain a third mixture; and rectifying the third mixture in a rectifying tower to obtain purified n-butyl alcohol. According to the method, unsaturated coloring functional groups in the crude n-butyl alcohol are efficiently removed through the modified low-load Pd-C catalyst, the difficulty of rectification separation is reduced, the purified n-butyl alcohol meets the requirements of GB / T6027-2023 for color number and sulfuric acid color development test key indexes, the method has the advantages of being simple in production process and low in energy consumption, and the method is suitable for industrial production. The method has great industrial application value.

The utility model provides an all-air air-conditioning system for preventing airborne propagation of microorganisms, which comprises an air-conditioning unit and an air pipe system, the air pipe system comprises an air supply pipe, an air return pipe and a fresh air pipe, and the air-conditioning unit comprises a casing, and a first purification component, a heat exchange component, a fan component and a second purification component which are arranged in the casing, a ventilation cavity is formed in the machine shell, the ventilation cavity is divided into a first cavity body and a second cavity body through a partition plate, a first air inlet used for communicating with a fresh air pipe and a second air inlet used for communicating with an air return pipe are formed in the side wall of the first cavity body, and the first purification assembly, the heat exchange assembly and the fan assembly are sequentially arranged in the first cavity body in the airflow direction; the second purification assembly is arranged in the second cavity. According to the all-air air conditioning system, air can be sterilized and purified at different levels, the quality of indoor air is improved, germs are prevented from diffusing into the whole place through the air conditioning unit when epidemic situations or other similar situations occur, and safety is improved.

The utility model relates to the technical field of agricultural water conservancy accessory devices, in particular to an ecological drainage ditch structure which can effectively purify sewage, reduce environmental pollution and prevent water and soil loss from influencing the normal drainage effect, so that the working efficiency and the effect of farmland drainage are improved, and the practicability is enhanced. A drainage groove is formed in the top of the ditch body, the vegetation layer is arranged on the surface of the drainage groove of the ditch body, the filtering layer is arranged at the bottom of the vegetation layer, the diversion layer is arranged at the bottom of the filtering layer, and the bottom of the diversion layer is connected with the bottom of the drainage groove of the ditch body through the supporting assembly; the ecological structure can effectively purify sewage and reduce environmental pollution through the combined action of the vegetation layer, the filter layer and the flow guide layer, and reduces labor cost and improves the drainage effect on farmland while maintaining ecological balance and saving energy and reducing emission.

The invention relates to an artificial leather foaming waste gas treatment method and system. The system sequentially comprises a waste gas collection device, a filtering device, a cooling device, electrostatic oil fume purification equipment, an exhaust fan and a spraying and filtering device which are communicated with one another, the filter device is a filter screen; the cooling device is a dry type cooling device; the spraying filter box comprises a box body, a circulating water tank I arranged below the box body, a water pump I located in the circulating water tank I, a spraying device and a water-oil separation partition plate, the spraying device and the water-oil separation partition plate are arranged in the box body, the spraying device is connected with the water pump I, washing liquid is added into the circulating water tank I, and the water pump I is connected with the water-oil separation partition plate. And the spraying device and the water-oil separation partition plate are arranged front and back in parallel along the gas conveying direction. Through optimal design, dust, oil smoke and pollution gas in the artificial leather foaming waste gas can be effectively treated.

The invention discloses a waste alkali liquor resource utilization device for catalytic thermal cracking of residual oil and coal-to-olefins, comprising a waste alkali liquor deoiling section, an oxidation section, an organic matter removal section, a causticizing section, an evaporation and concentration section, a miscellaneous salt removal section, a sodium thiosulfate recovery section and a liquid caustic soda modulation recovery section, wherein the waste alkali liquor of a DCC device and an MTO device is subjected to oil-water separation in the waste alkali liquor deoiling section, the contained sodium sulfide is converted into sodium thiosulfate in the oxidation section, the organic matter is removed by adsorption of activated carbon in the organic matter removal section, the contained sodium carbonate is converted into calcium carbonate and sodium hydroxide by adding quicklime in the causticizing section, the water and residual sodium sulfide, sodium carbonate, sodium chloride and sodium sulfate are further removed in the evaporation and concentration section and the miscellaneous salt removal section, the sodium thiosulfate is separated in the sodium thiosulfate recovery section and the liquid caustic soda modulation recovery section, and the concentration of sodium hydroxide is adjusted. The invention realizes the efficient and low-cost resource utilization of mixed salts in the waste alkali liquor.

The invention discloses a chicken coop smell purification device for raising chickens, relates to the field of chicken coop equipment, and solves the problem that an existing chicken coop smell purification device is difficult to ensure normal purification of odor in a chicken coop. The chicken coop smell purification device comprises a device shell and an air inlet box fixedly mounted on the outer side of the device shell; two symmetrically-distributed air inlet fans are fixedly installed on the outer side of the air inlet box, an installation cylinder is arranged on the inner side of the device shell, four elastic filter screens distributed at equal intervals are fixedly installed on the outer side of the installation cylinder, and an exhaust air bellow is fixedly installed on the left side of the device shell. The purification mechanism is used for continuously purifying gas entering from the gas inlet box, and the purification mechanism is mounted on the inner side of the device shell; according to the efficient air purification device, the purification mechanism, the elastic filter screen and activated carbon are matched to purify entering air, the mounting cylinder can intermittently rotate, the problem that a traditional purification device is difficult to continuously purify the air is solved, and therefore the effect of efficiently purifying the air is achieved.

The invention relates to the technical field of livestock farm odor treatment, and discloses a livestock farm intelligent deodorization device which comprises a breeding bin, a deodorization tower is arranged on the left side of the breeding bin, a gas collection mechanism is arranged in the deodorization tower, and a pretreatment pipe is arranged at the bottom of the breeding bin; an exhaust pipe is arranged on the side, away from the pretreatment pipe, of the breeding bin, a connecting pipe is arranged on the side, close to the breeding bin, of the pretreatment pipe, a liquid collecting box is arranged on the side, away from the breeding bin, of the pretreatment pipe, and a dirt collecting box is arranged on the side, away from the pretreatment pipe, of the liquid collecting box; and a water pump is mounted on one side of the liquid collecting box. The spraying water atomization system is combined with the mechanical transmission device, uniform water mist and a gas-liquid curtain are formed by multi-angle rotary spraying of the atomization spraying plate and the direct-spraying spraying plate, and meanwhile, the gas-liquid contact area is increased through dynamic rotation of the Mel ring, so that the odor purification efficiency of the farm is remarkably improved.

This invention relates to the field of wastewater treatment technology, and in particular to a wastewater purification and reuse device based on a membrane bioreactor. Addressing the limited removal efficiency of pollutants adhering to membrane elements in existing technologies, this invention provides a wastewater purification and reuse device based on a membrane bioreactor. The device includes a treatment tank containing a membrane bioreactor assembly. The assembly includes an assembly frame with multiple membrane elements mounted on it. Scrapers that cooperate with the membrane elements are located on both sides of a horizontal plate. A cleaning assembly also includes a vertically movable frame. When the frame moves downwards, the horizontal plate moves downwards, and the scrapers clean the outer surface of the membrane elements downwards. A movable scraper is located on a support, and a collection box is located on one side of the support. When the scraper moves to one side, the collection box opens. By directly scraping away impurities adhering to the outer surface of the membrane elements, suspended solids, colloidal particles, microbial flocs, and other pollutants on the membrane surface can be removed quickly and effectively.

The invention discloses microcapsule self-regeneration-based long-acting formaldehyde-removing cement and a preparation method thereof, and belongs to the field of building materials and environmental functional materials. The material is composed of Portland cement clinker and a functional composite additive, wherein the additive comprises Zn < 2 + > modified zeolite, a manganese-based catalyst, a pH-responsive sustained-release microcapsule and alpha-semi-hydrated gypsum. According to the invention, through the cooperation of zeolite selective adsorption, non-photocatalytic oxidation of the manganese-based catalyst in an alkaline environment and pH-triggered microcapsule self-regeneration, an adsorption-catalysis-regeneration function closed loop is formed, efficient and lasting removal of formaldehyde under a dark condition is realized, and the mechanical properties of a cement matrix are not damaged. According to the preparation method, the functional components are pre-compounded and then co-ground with the cement clinker, the process is simple, and the preparation method is suitable for industrial production.

The utility model relates to the field of indoor air purification, in particular to an indoor air purification and sterilization device with a filter screen capable of being quickly detached. The technical problems that in the using process of an air purification and sterilization device, due to the fact that the purification function is very single, most air purification and sterilization devices are of a fixed structure, replacement and cleaning can only be achieved through tedious disassembly, use is not convenient enough, a sterilization structure is not arranged, and the air purification effect is reduced are solved. According to the technical scheme, the indoor air purification and sterilization device with the filter screen capable of being rapidly detached comprises a fixed box and further comprises a dustproof assembly, an ultraviolet sterilization lamp, a purification assembly and a negative ion exciter. By arranging the dustproof assembly, air sucked into the fixed box can be preliminarily filtered, the ultraviolet germicidal lamp can remove poisonous gas in the air and kill bacteria in the air, then fine particulate matter can be captured through the purification assembly, and the structure in the purification box can be conveniently and rapidly disassembled.

This invention belongs to the field of wet electronic chemicals technology, specifically relating to a method for preparing electronic-grade hydrogen peroxide. The method includes the following steps: adjusting the concentration of raw hydrogen peroxide, and then filtering it sequentially through a reverse osmosis membrane, a modified cation exchange resin, an anion exchange resin, and a mixed ion exchange resin to obtain electronic-grade hydrogen peroxide. The modified cation exchange resin used is modified based on conventional cation exchange resin through pore expansion and grafting, optimizing the spatial matching of pore structure and functional sites. This achieves passivation of metal ions, enhanced adsorption capacity, and improved oxidation resistance, as well as a deep synergistic effect of these three effects. Ultimately, it achieves the dual goals of efficient purification and stable operation of the resin in the hydrogen peroxide system. The resulting electronic-grade hydrogen peroxide can reduce the content of single impurity metal ions to below 5 ppt, meeting the requirements of SEMI G5 standards, and can be directly applied to high-end manufacturing fields such as semiconductor wafer cleaning.

This invention relates to the field of water treatment, specifically to an iron-doped biomass resource-based water treatment catalyst, its preparation method, and its application. The preparation of the water treatment catalyst includes the following steps: Step 1, drying and dehydrating recovered pigeon manure; Step 2, finely sieving the dried pigeon manure; Step 3, heat-treating the purified pigeon manure in a muffle furnace to obtain resource-based biochar; Step 4, ball milling dopamine hydrochloride, ferric chloride hexahydrate, and resource-based biochar at a mass ratio of 1:(5-15):(80-100); Step 5, calcining the ball-milled material in a tube furnace at 850-950℃. The water treatment catalyst provided by this invention can rapidly reduce the antibiotic content in wastewater, while accelerating antibiotic removal under ammonia nitrogen conditions. It achieves long-term continuous purification during long-term reaction, exhibiting good stability and removal effect, and is beneficial for achieving low-cost treatment of agricultural waste and efficient purification of new pollutant wastewater.

The utility model relates to the field of oil extraction equipment, in particular to an oil field sewage and boiler flue gas mixed bath bidirectional purification device which comprises a mixed bath tower, a high-temperature-resistant fan, a sewage pump, a dust removal cloth bag, a partition plate, an inclined plate, a jet pipe, a fin heat exchanger, a demister, a condensation plate and a chimney. The device is reasonable and compact in structure and convenient to use, boiler flue gas treated by the dust collecting cloth bag and oilfield sewage are mixed for bath, flue gas treatment and purification are achieved through sewage cleaning, pure water is obtained through condensation after flue gas waste heat evaporation, cyclic utilization of heat energy is achieved through heat transfer of a water carrier, and energy conservation and emission reduction are achieved. The problem that flue gas and dust are difficult to treat can be effectively solved, long-period and stable operation of the purification device is ensured, efficient purification of sewage and flue gas, heat energy recovery and water resource reutilization are achieved, and remarkable environment-friendly, economic and technical advantages are achieved.

The utility model discloses an integral dust removal system for a workshop, which relates to the technical field of dust removal and comprises a dust collection pipeline, a bag-type dust remover, an air compressor, an induced draft fan, a spray tower and an exhaust pipeline, the dust collection pipeline is connected into a plurality of stations, an air inlet of the bag-type dust remover is connected with the dust collection pipeline, and the air compressor is communicated with the bag-type dust remover through a pipeline. An air inlet of the induced draft fan is communicated with an air outlet of the bag-type dust collector through a pipeline, an air inlet of the spray tower is communicated with an outlet of the induced draft fan through a pipeline, and the exhaust pipeline is communicated with an air outlet in the top of the spray tower through a pipeline. According to the utility model, cloth bag dust removal and spray tower dust removal are carried out in sequence, high-efficiency dust removal and deep purification can be realized through graded purification, the ultra-low emission requirement is met, and gaseous pollutants are removed at the same time; the system stability is improved; and dust escape and secondary pollution are prevented. The included angle between the dust collection pipeline and the horizontal plane can prevent smoke dust from accumulating in the pipeline due to horizontal laying of the pipeline.

The utility model discloses a purification device for an air fryer, which relates to the technical field of purification and comprises a fryer shell, a fryer body is arranged in the fryer shell, a metal shell is fixedly mounted in the fryer shell, a motor is fixedly mounted in the metal shell, a driving shaft is fixedly mounted at the output tail end of the motor, and a fan is fixedly mounted at the output tail end of the driving shaft. A first fan blade is fixedly installed at the tail end of the driving shaft, an electric heating pipe is fixedly installed below the first fan blade, a purification mechanism is installed on the metal shell, an oil smoke treatment mechanism is connected to the purification mechanism, and the purification mechanism comprises a gas pipeline fixedly installed on the metal shell; the gas pipeline is connected with a fan and a purifier, and a transmission shaft is arranged between the driving shaft and the fan. According to the purification device for the air fryer, through cooperative use of the purification mechanism and the oil fume treatment mechanism, oil fume and harmful gas generated by the air fryer can be purified.

The utility model relates to a water circulation device and a fish tank, and aims to provide higher ornamental value while circulating filtration of water, the device comprises a container, a base, a suction part and a water feeding pipe, the bottom of the container is provided with a water outlet and a water feeding port, the suction part conveys the water at the bottom of the container to the upper part through the water feeding pipe, and circulating flow of the water is realized. A supporting piece is arranged at an opening of the container, plant landscaping or a filtering medium can be used for filtering and purifying a water body, meanwhile, nutrients are provided for aquatic plants, a mutualistic ecological system is formed, the base protects the container and accommodates the suction piece, the structure is simple, and maintenance is easy. And the design of the detachable butt joint piece facilitates cleaning and later maintenance.

The utility model provides a deep purification system for waste gas containing tobacco shred particles in a rolling and packaging dust removal room, which comprises a cyclone dust collector, a first centrifugal purification device and a second centrifugal purification device which are used for purifying the waste gas step by step, each of the first centrifugal purification device and the second centrifugal purification device comprises a water throwing nozzle for atomizing a liquid medium and a centrifugal impeller for gas-liquid separation, and the first centrifugal purification device is used for mixing waste gas with the atomized water medium and then performing gas-liquid separation to remove particles; and the second centrifugal purification device is used for mixing the waste gas with the atomized odor removal medium and then carrying out gas-liquid separation to remove odor. By means of the cyclone dust collector, the first centrifugal purification device and the second centrifugal purification device which are used for purifying waste gas step by step, step-by-step purification of particulate matter / dust and peculiar smell molecular substances in the waste gas is achieved, the waste gas can be efficiently purified, peculiar smell removing media can be saved, and the separated substances can be effectively classified and recycled.

The present invention relates to the field of biochar materials, and in particular to a biochar material and a preparation method and application thereof. The present invention provides a method for preparing a biochar material, characterized in that it comprises the following steps: S101 obtaining a first mixed solution; S102 obtaining a first precursor; S103 obtaining a second precursor; S104 obtaining a first material; S105 obtaining the biochar material. The biochar material prepared by the present invention can perform directional adsorption on pigments (such as lutein and chlorophyll) and is suitable for application to QuEChERS pretreatment.

The invention discloses an efficient hydrogen purification device suitable for an ultra-high-temperature working condition. The efficient hydrogen purification device comprises a pressure-bearing shell; the Getter material bed layer is arranged in the pressure bearing shell; the heating system is used for heating the Getter material bed layer, and the heating system is configured to maintain the operation temperature of the Getter material bed layer at 600 DEG C + / -10 DEG C; the invention further discloses an efficient hydrogen purification method suitable for the ultrahigh-temperature working condition. According to the invention, high-efficiency purification of hydrogen under high-temperature and high-pressure conditions is realized, the impurity content is obviously reduced, the service life of the device is prolonged, and reliable technical support is provided for industrial hydrogen purification.

This invention discloses a dual-mode synergistic composite photocatalyst, its preparation method, and its application in styrene-acrylic emulsion coating compositions, belonging to the field of architectural coating technology. The dual-mode synergistic composite photocatalyst possesses a TiO2@dense SiO2@mesoporous SiO2-MnO2-GQDs three-layer core-shell structure. The styrene-acrylic emulsion coating provided by this invention utilizes the aforementioned dual-mode synergistic composite photocatalyst, and innovatively employs a yellowing-resistant composition composed of hollow titanium dioxide-supported phenyltriazole particles, a sulfonic acid-grafted hindered amine light stabilizer, and nano-zinc oxide. This composition synergistically inhibits yellowing of the paint film through enhanced UV absorption and improved interfacial compatibility. The styrene-acrylic emulsion coating provided by this invention successfully solves the two major problems of traditional photocatalytic coatings: "purification depends on light" and "self-catalysis leads to yellowing of the paint film." It can efficiently degrade formaldehyde under both light and dark conditions and exhibits excellent yellowing resistance.