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492results about How to "Achieve removal" patented technology

Fusion protein and application thereof in preparation of Brazilian sweet

The invention provides a fusion protein and application thereof in preparation of Brazilian sweet. The fusion protein comprises a tag protein and a Brazilian sweet protein which are connected by a linker; wherein the linker comprises an amino acid sequence as shown in SEQ ID NO: 1, and the amino acid sequence as shown in SEQ ID NO: 1 is directly connected with the Brazilian sweet protein. The invention also provides a preparation method of the Brazilian sweet protein. The preparation method comprises the following steps: treating the fusion protein by using TEV protease and obtaining the Brazilian sweet protein. Large-scale expression of the fusion protein and the brazitame protein is realized by utilizing an escherichia coli expression system, and the obtained brazitame protein can be correctly folded and has high sweetness.
Owner:HANGZHOU YANSHOU TECHNOLOGY CO LTD

Phosphorus removal filler as well as preparation method and application thereof

The invention discloses a phosphorus removal filler and a preparation method and application thereof, and belongs to the technical field of fillers. Sulphoaluminate cement, chitosan, sodium alginate and calcium peroxide are uniformly mixed in a nitric acid solution in an amino-containing coupling agent, then foaming and pore forming are performed under steam, and the phosphorus removal filler is prepared. And finally, uniformly mixing with titanium dioxide, sodium silicate, a ferrous sulfate solution and sodium borohydride to obtain the phosphorus removal filler with an excellent phosphorus removal effect, and the phosphorus removal filler has a rich pore structure and adsorption activity, can sufficiently perform physical adsorption on phosphorus elements, and has a good phosphorus removal effect. Meanwhile, the phosphorus removal filler further has excellent surface complexing activity and photocatalysis, insoluble salt precipitates can be generated through reaction of iron elements and calcium elements and phosphate in water, so that total phosphorus is removed, the material is ground after adsorption saturation and put into a fish pond to serve as a phosphorus supplementing material, resource recycling can be achieved, and the cost is reduced. Wide application prospects are realized.
Owner:GUANGZHOU RESOURCE ENVIRONMENTAL PROTECTION TECH CO LTD

Image target removal method and device and electronic equipment

The invention provides an image target removal method and apparatus, and an electronic device. The method comprises the steps of obtaining a to-be-processed image and a corresponding foreground target mask; inputting the to-be-processed image and the foreground target mask into a pre-training diffusion model; wherein the pre-training diffusion model comprises an auto-encoder module and a noise prediction module; encoding the to-be-processed image through an encoder in the self-encoder module to obtain an initial hidden variable corresponding to the to-be-processed image; performing forward diffusion noise adding processing on the initial hidden variable to obtain a noise-containing hidden variable; based on the foreground target mask, executing a reverse diffusion sampling process on the noise-containing hidden variable through a noise prediction module, and obtaining and correcting a self-attention map of each time step; and guiding a reverse diffusion sampling process based on the corrected self-attention map of each time step and a self-attention redirection guiding mode so as to realize target removal of the to-be-processed image. According to the invention, the target removal quality and stability can be improved.
Owner:HANGZHOU HUISHU ZHITONG TECH CO LTD

Method for separating rhenium from rhenium-containing solution by adopting anion exchange resin

The method comprises the following steps: (1) putting 1-vinyl imidazole into a flask containing N, N-dimethylformamide and D314 type resin, adding an initiator, carrying out a grafting reaction under the action of the initiator, and obtaining imidazolyl anion exchange resin after the reaction is finished; (2) pre-treating the imidazolyl anion exchange resin, and then adsorbing a rhenium-containing solution to be treated by adopting the pre-treated imidazolyl anion exchange resin; and (3) washing the imidazolyl anion exchange resin subjected to saturated adsorption in the step (2) by using ultrapure water, and then analyzing by using ammonia water to obtain a high-purity rhenium-containing solution. According to the method, the imidazolyl anion exchange resin is synthesized, the imidazolyl anion exchange resin has excellent selective adsorption capacity on rhenate ions, and efficient separation of rhenium and other impurities can be achieved when the imidazolyl anion exchange resin is applied to the rhenium-containing solution.
Owner:CENT SOUTH UNIV

Centrifugal precipitation device suitable for sewage treatment

The invention discloses a centrifugal precipitation device suitable for sewage treatment, relates to the technical field of sewage centrifugal precipitation, and is used for solving the problems that automatic adjustment and deslagging cannot be performed according to the load condition of a centrifugal mechanism, and the service life of equipment is shortened due to long-time load work of the centrifugal mechanism. The rotating speed of the rotating shaft is adjusted through the electric control box, the height of the balance weight ball connected with the rotating arm is adjusted through the rotating speed adjustment of the rotating shaft, a baffle on the sleeve completes locking of the filter cylinder and abutting against the bottom of the filter cylinder, rotation assistance is carried out, and sliding of the sleeve can push a blocking piece in a drainage cavity to move; sewage which continuously inflows enters the bottom of the filter cartridge, centrifugal filtration work of the sewage is completed in the rotating process of the filter cartridge, when the filtering rate of the filter cartridge is reduced, the baffle is automatically pressed down by utilizing the weight of the sewage, automatic discharge of precipitated sewage is achieved, finally, the electric push rod is started through the electric control box, the scraping rod is pushed in, and cleaning of the inner wall of the filter cartridge is completed.
Owner:江苏鑫林环保设备有限公司

Method for recovering phosphorus in sludge pyrolysis residues, flocculant synthesis method and application

The invention relates to the field of sludge treatment, and particularly discloses a method for recycling phosphorus in sludge pyrolysis residues, a flocculant synthesis method and application. The invention discloses a method for recovering phosphorus in sludge pyrolysis residues. The method comprises the following steps: drying the sludge pyrolysis residues, grinding and sieving; the sludge pyrolysis residues are put into a hydrochloric acid solution to react, and solid-liquid separation is carried out after the reaction; treating the phosphorus-containing extracting solution through adsorption resin to obtain a phosphorus purification solution; adjusting the pH value of the phosphorus purification liquid to 9-11, and carrying out a crystallization reaction under the condition that the molar ratio of magnesium to nitrogen to phosphorus is (0.8-1.2): (1-1.6): 1 to obtain struvite; a synthetic method of the flocculating agent is as follows: the flocculating agent is prepared from residual sludge residues. The method for recycling phosphorus in the sludge pyrolysis residues has the advantages that phosphorus resources are recycled from the sludge pyrolysis residues, and the residues are secondarily utilized. The flocculating agent is applied to municipal sewage treatment.
Owner:CHINA RAILWAY WATER GRP CO LTD +1

Multi-stage sewage treatment device and method combining biological treatment with electro-Fenton

The invention discloses a multistage sewage treatment device and method combining biological treatment and electro-Fenton, and relates to the field of water pollution control, the device is composed of a three-chamber microbial fuel cell reactor, and the three-chamber microbial fuel cell reactor is sequentially composed of a microbial anode chamber, an electro-Fenton cathode chamber and a photosynthesis chamber from left to right. The biological anode chamber consists of filled anaerobic granular sludge and a carbon brush electrode serving as an electron collector; and the core structure of the electro-Fenton cathode chamber is a gas diffusion cathode loaded with nano FeCo2O4. The microbial anode chamber and the electro-Fenton cathode chamber are isolated by a proton exchange membrane, and the gas diffusion electrode separates the electro-Fenton cathode chamber and the photosynthesis chamber at the same time. According to the invention, the combination of two clean energy sources, namely microbial energy and light energy, is realized, the efficient removal capability of aerobic and anaerobic biological treatment technologies and the synergistic mechanism of microorganisms and algae for purifying sewage are combined, the efficiency of the microbial fuel cell is further optimized, and the removal of ammonia nitrogen and refractory organic pollutants in the sewage is realized.
Owner:ANHUI UNIV

Copper-iron double-component composite catalyst for preparing electronic-grade hydrogen chloride gas and application of copper-iron double-component composite catalyst

The invention belongs to the technical field of high-purity gas preparation and catalysis, and discloses a copper-iron double-component composite catalyst for removing trace acetylene and ethylene in petrochemical byproduct hydrogen chloride gas to prepare electronic grade hydrogen chloride gas, and a preparation method of the copper-iron double-component composite catalyst comprises the following steps: immersing activated carbon in hydrochloric acid; washing the activated carbon carrier with deionized water until the pH is neutral, and drying to obtain the pretreated activated carbon carrier; and impregnating the active component on the pretreated active carbon carrier, carrying out ultrasonic-assisted impregnation, standing, and drying, thereby obtaining the product, the active components are Fe metal salt and Cu metal salt. According to the method, trace acetylene and ethylene in the petrochemical byproduct hydrogen chloride gas are catalyzed to react with the hydrogen chloride gas at the same time, so that acetylene and ethylene are removed at the same time, and the acetylene and ethylene removal step in the existing hydrogen chloride purification process is simplified. Compared with a traditional method, the reaction efficiency of preparing the electronic-grade hydrogen chloride gas is remarkably improved.
Owner:TIANJIN UNIV +1

Method for preparing battery grade vanadyl sulfate electrolyte by using vanadium leachate

The invention discloses a method for preparing a battery-grade vanadyl sulfate electrolyte by using a vanadium leachate, which comprises the following steps: S1, carrying out anion resin adsorption-desorption treatment and reduction treatment by using the vanadium leachate with the vanadium ion concentration of 1.0-20g / L as a stock solution and using a sulfurous acid solution or a saturated SO2 solution as a desorption solution to obtain a vanadyl sulfate solution with the vanadium ion concentration of 20-40g / L; the method comprises the following steps: sequentially performing extraction and back extraction on a vanadyl sulfate solution with the vanadium ion concentration of 20-40g / L to obtain a vanadyl sulfate electrolyte with the vanadium ion concentration of 80-160g / L; and S3, adsorbing the vanadyl sulfate electrolyte with the vanadium ion concentration of 80-160g / L by using an adsorbent, and filtering to obtain the battery-grade vanadyl sulfate electrolyte. According to the method, the removal of impurities in the vanadium leachate and the efficient reduction conversion and enrichment purification of vanadium ions can be simultaneously / synchronously realized, and the technical effects of improving the product quality, shortening the process flow, improving the production efficiency and reducing the production cost are achieved.
Owner:STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED +1

Aquaculture denitrification microcapsule as well as preparation method and application thereof

ActiveCN119410543Areduce diseaseEfficient denitrificationBacteriaWater contaminantsBiotechnologyMetabolite
The invention discloses an aquaculture denitrification microcapsule as well as a preparation method and application thereof, and relates to the technical field of aquaculture and biology. The lactobacillus casei provided by the invention can secrete acid metabolites, and the acid metabolites can inhibit pathogenic vibrio, so that the occurrence of diseases in aquaculture can be reduced. Lactobacillus casei has the efficacy of efficiently degrading ammonia nitrogen and nitrite nitrogen in the aquaculture environment, and can continuously realize efficient cleaning of the aquaculture environment. In addition, the invention also provides a denitrification microcapsule which creates a more favorable microenvironment for the efficient denitrification strain, so that the repeated denitrification performance is more stably exerted, and the denitrification microcapsule can be repeatedly utilized.
Owner:POLY CORE BIOENGINEERING CO LTD

Automatic colla corii asini decocting equipment

The invention relates to the technical field of colla corii asini decocting, and discloses an automatic colla corii asini decocting device which comprises a decocting pot body, a mounting frame is fixed to the decocting pot body, a first servo motor is fixed to the mounting frame, the output end of the first servo motor is connected with a rotating shaft, the rotating shaft is connected with a stirring rod, and the stirring rod is connected with a motor. A rotating shaft is fixed on the mounting frame, a material collecting box is arranged on the circumference of the rotating shaft, an air extracting pump communicated with the material collecting box is fixed on the mounting frame, a defoaming mechanism is fixed at the bottom of the material collecting box, and the defoaming mechanism removes floating foam above the liquid level through air suction; according to the technical scheme, when the rotating shaft drives the stirring rods to stir liquid, the defoaming mechanism can be driven to rotate together, so that the defoaming mechanism can firstly collect scum on the surface of the liquid, and after collection, air suction is performed through the air suction pump, so that the defoaming mechanism generates negative pressure to suck out the scum in the material receiving groove, and the scum removal work is facilitated.
Owner:SHANDONG DONGE JIXIANG DONKEY HIDE GELATIN PROD CO LTD

Gel type imidazolyl anion exchange resin as well as preparation method and application thereof

The invention relates to the technical field of water treatment, and provides gel type imidazolyl anion exchange resin as well as a preparation method and application thereof. According to the method, the gel type styrene-divinyl benzene copolymer is taken as a matrix, and the adsorption selectivity of the gel type imidazolyl anion exchange resin on rhenium / technetium is regulated and controlled by grafting imidazole with alkyl side chains with different lengths, so that the removal rate of rhenium / technetium is increased. The gel type imidazolyl anion exchange resin provided by the invention has relatively high adsorption capacity on ReO4 <-> and TcO4 <->, high selectivity, wide applicable pH value and temperature range, strong acid and alkali resistance and irradiation stability, and wide application prospect.
Owner:JILIN UNIVERSITY

Circulating oxygen control enhanced biochemical sewage treatment system

The utility model provides a circulating oxygen control enhanced biochemical sewage treatment system. The circulating type oxygen control enhanced biochemical sewage treatment system comprises a pool body, a mixing area, a screening area, an enhanced biochemical area, a selection area, a circulating area, a mud-water separation area and a backflow area are sequentially arranged in the pool body in a communicating mode, and a sewage inlet is formed in the mixing area. The screening area, the enhanced biochemical area and the selection area are respectively provided with an aeration device and a dissolved oxygen meter to control the dissolved oxygen concentration, the circulation area is provided with an air lifting and pushing device, the sludge-water separation area is provided with a filler layer, a water outlet and a sludge outlet, the sludge outlet is communicated with the backflow area, and the backflow area is communicated with the mixing area to enable at least part of sludge to flow back to the mixing area. The system disclosed by the utility model can be used for removing different pollutants in the same pool body and in the same microbial environment, and has the advantages of shortening the treatment flow, improving the treatment effect, saving the operation cost and the like.
Owner:BEIJING PULI JUNUO ENVIRONMENTAL PROTECTION TECH CO LTD +2

A packaging bag washing machine

ActiveCN116213391Braise the water levelconserve waterHollow article cleaningWater sourceAir pump
The present invention relates to the field of packaged food processing, and discloses a packaging bag washing machine, comprising a washing tank, a water inlet pipe and a water outlet pipe are provided on the washing tank, a conveying mesh belt is arranged in the washing tank, a plurality of water spray pipes are connected to the washing tank, a plurality of nozzles are arranged at the bottom of the water spray pipes, and a jet pipe and an air bag located below the conveying mesh belt are connected in the washing tank. The present invention has the following advantages and effects: clean water is injected into the washing tank, and the clean water covers the air bag, and an air pump sends air into the air bag before the jet pipe, so that the water level is quickly raised, and water resources are saved at the same time; the bagged food floating above the liquid level is picked up by rotating the toggle wheel, so as to remove the unqualified products.
Owner:HUBEI XIAOSHIDAI TECH CO LTD

Slow-release phosphorus removal material as well as preparation method and application thereof

The invention discloses a slow-release phosphorus removal material and a preparation method and application thereof, and belongs to the technical field of sewage treatment, the slow-release phosphorus removal material comprises the following components by mass: 40-55 parts of calcium peroxide, 25-35 parts of a binder, 2-5 parts of bentonite, 5-20 parts of calcined oyster shell powder, and 10-25 parts of iron-loaded modified red soil; the binder is prepared from Portland cement, polyacrylic acid and hydroxypropyl methyl cellulose ether according to the mass ratio of 1: (0.2 to 1): (0.1 to 0.8). Under the synergistic effect of the calcium peroxide, the binder, the bentonite, the calcined oyster shell powder and the iron-loaded modified red soil, the filter material can be used as a phosphorus removal filter material, can be directly used as a filter material of a filter tank, a wetland and the like independently or in combination with quartz sand, gravel and other filter bed filter materials, can permanently remove phosphorus in surface water, can also be directly put into rivers, lakes and ponds, and can be used as a filter material of a filter tank, a wetland and the like. In addition, the preparation cost is low, and wide application prospects are achieved.
Owner:GUANGZHOU RESOURCE ENVIRONMENTAL PROTECTION TECH CO LTD

Highway service area wastewater treatment method based on anaerobic ammonia oxidation enhanced AOOA-MBBR

The invention relates to the field of expressway service area wastewater treatment, in particular to an expressway service area wastewater treatment method based on anaerobic ammonia oxidation enhanced AOOA-MBBR. The method comprises the following steps: 1, preparing a reactor; 2, starting the reactor and inoculating bacteria, and in the step, gradually shortening the hydraulic retention time to 20 hours after the effluent stably runs for a preset time; step 3, anaerobic ammonium oxidation strengthening: after the effluent stably runs for a preset time, respectively replacing part of filler in each tank by using filler of biofilm-forming anaerobic ammonium oxidation bacteria; the concentration of dissolved oxygen in the first aerobic tank is 0.2 mg / L, and the concentration of dissolved oxygen in the second aerobic tank is 0.5-0.8 mg / L; manganese sulfate is added into part of the wastewater of the highway service area, and then the wastewater is directly pumped into the second anoxic tank; and 4, after the effluent is stable, entering a stable stage. When the hydraulic retention time is 20 hours, the total nitrogen and total phosphorus of the effluent can reach corresponding emission standards, so that the wastewater treatment efficiency of the highway service area is improved, and the problem of trouble in subsequent phosphorus removal is avoided.
Owner:CHANGZHOU UNIV

Novel composite absorption core forming device

The utility model relates to the field of disposable hygienic product equipment, in particular to a novel composite absorption core forming device which comprises a first forming device, a second forming device and a winding device for a composite absorption core, a fluffy cotton input mechanism used for conveying fluffy cotton, a first non-woven fabric input mechanism used for conveying first non-woven fabric and a second non-woven fabric input mechanism used for conveying second non-woven fabric are arranged on one side of the first forming device. A separating mechanism used for separating the first non-woven fabric from the fluffy cotton is arranged between the first forming die wheel and the second forming die wheel, and the separating mechanism separates the first non-woven fabric and the primary composite fabric. The technical problems that in the prior art, when macromolecules are added to the composite non-woven fabric, working efficiency is low, and stability is poor are solved.
Owner:QUANZHOU HANWEI MACHINERY MFG

Raw coal impurity removing and anti-blocking device

The invention relates to the technical field of raw coal impurity removal, and particularly provides a raw coal impurity removal anti-blocking device. By arranging the feeding primary screening mechanism, coal powder is filtered out through a flow guide plate, and by arranging a first-stage material uniformizing device and a second-stage material uniformizing device, coal can be evenly dispersed, and the phenomenon that the device is blocked due to accumulation of the coal is prevented; the belt type iron removal mechanism is additionally arranged, metal impurities in raw coal are adsorbed through the magnetism of an electromagnet, and the discharging quality of coal is guaranteed; the grate type screening unit is additionally arranged, so that coal briquettes with small sizes can smoothly fall into a stock bin below through gaps between swing rods, and impurities such as stones with large sizes are temporarily intercepted on the swing rods and wait for follow-up rotary throwing treatment of the rotary roller claw type screening unit; and a rotating roller claw type screening unit is arranged, a first gear motor and a cam divider are used for providing power, a claw is intermittently driven to rotate, and large sundries can be thrown into a sundry recycling box.
Owner:HUAIBEI HUAXING GONGMAO +1

Efficient purification system for sludge incineration flue gas

The invention relates to the technical field of environmental protection, in particular to a sludge incineration flue gas efficient purification system which comprises a pretreatment module, a dynamic ion separation module, an acid gas neutralization module, a heavy metal adsorption module, an acid-gold interaction purification module, a deep oxidation module and an intelligent control module. Wherein the pretreatment module is used for receiving initial flue gas flow; the dynamic ion separation module is used for primarily separating heavy metal ions; the acid gas neutralization module is used for stabilizing emission of acid gas; the heavy metal adsorption module is used for accurately adsorbing heavy metal ions; the acid-gold interactive purification module is used for treating composite pollutants; and the intelligent control module is used for automatically adjusting module operation parameters. According to the sludge incineration flue gas treatment system, by integrating an efficient purification technology and intelligent control, comprehensive removal and stable up-to-standard emission of various pollutants in sludge incineration flue gas are achieved, and the response speed, the purification efficiency and the energy-saving effect of the system are improved.
Owner:SHANFA (ZHUCHENG) ENVIRONMENTAL PROTECTION ENERGY CO LTD

Method and device for removing thermally stable salt through electrodialysis

The invention relates to a method for removing thermally stable salt by electrodialysis, which comprises the following steps: i) providing an electrochemical reaction membrane stack which comprises a cathode plate, an anode plate and at least one repeatable unit arranged between the two polar plates, an electric field exists between the cathode plate and the anode plate, each repeatable unit comprises a pure water channel, a desalination channel and an alkali liquor channel in the direction from the cathode plate to the anode plate, the pure water channel is limited by an anion exchange membrane and a cation exchange membrane, the desalination channel is limited by the cation exchange membrane and the anion exchange membrane, and the alkali liquor channel is limited by the anion exchange membrane and the anion exchange membrane; ii) introducing pure water into the pure water channel, introducing raw water into the desalination channel, introducing alkali liquor into the alkali liquor channel, and iii) withdrawing a product stream from the desalination channel; wherein the raw water contains an organic amine compound and a heat-stable salt. The method provided by the invention realizes removal of thermally stable salts by using an electrochemical reaction membrane stack.
Owner:HANGZHOU CRAFTSMAN RONGDAO ENVIRONMENTAL TECH CO LTD

Flue gas purification process and system for synergistically removing multiple pollutants

An existing sintering flue gas treatment process additionally provided with a CO removal device is improved, the flue gas purification process and system for synergistically removing multiple pollutants are provided, SO2, NOx, dust and CO are efficiently removed, pollutants such as SO3, HCl, HF and heavy metal can be efficiently and synergistically removed, long-term stable operation of a CO catalyst can be ensured, and the service life of the flue gas purification system is prolonged. And meanwhile, the system stability under different CO concentration fluctuations can be adapted, the CO device can be ensured to operate in a high-efficiency state for a long time, and meanwhile, the effects of saving energy and reducing carbon are achieved.
Owner:FUJIAN LONGKING DSDN ENGINEERING CO LTD

Method for synthesizing and purifying electronic-grade diborane

The invention discloses a synthesis and purification method of electronic-grade diborane, and relates to the technical field of diborane synthesis, and the synthesis and purification method has the advantages that cation 1-ethyl-3-methylimidazole in ionic liquid has a relatively large volume and a specific spatial configuration; the ionic liquid can be close to reactants sodium borohydride and hydrogen through intermolecular force, meanwhile, the anion bis (trifluoromethanesulfonyl) imide salt has high polarity and can attract reactant molecules with opposite charges, so that the ionic liquid makes full contact with the reactants, sulfolane has high dissolving capacity and can well dissolve sodium borohydride and hydrogen, and the ionic liquid can be separated from the reactants. Sodium borohydride and hydrogen are uniformly distributed in a mixed solvent, the sodium borohydride and hydrogen are efficiently reacted at proper temperature and pressure to generate high-purity diborane under the synergistic effect of the sodium borohydride and the hydrogen, sufficient contact of reactants is ensured by timely stirring in the reaction process, the reaction efficiency and the diborane yield are greatly improved, and the yield of the diborane is increased. And favorable conditions are created for subsequent preparation of electronic-grade diborane.
Owner:HEFEI XIANWEI SEMICON MATERIAL CO LTD

Low-radioactivity spherical aluminum oxide as well as preparation method and application thereof

The invention belongs to the technical field of inorganic powder, and discloses low-radioactivity spherical aluminum oxide as well as a preparation method and application thereof. The preparation method comprises the following steps: adopting ultrapure water at 20-60 DEG C, and adding acid to adjust the pH value to be less than or equal to 2.5 to obtain acid liquor; taking aluminum hydroxide / boehmite / industrial alumina as raw materials, adding the raw materials into the acid liquor, and stirring and dispersing to obtain mixed slurry A; adding alkaline anion exchange resin into the mixed slurry A, carrying out hydrothermal stirring treatment for 8-12 hours, and removing the alkaline anion exchange resin to obtain mixed slurry B; carrying out suction filtration and drying on the mixed slurry B, and carrying out heat preservation treatment on the dried material at 1300-1400 DEG C for 6-9 hours; and S4, crushing and dispersing the material subjected to heat preservation treatment in the step S4, and melting and spheroidizing at 1100-1300 DEG C to obtain a low-radioactivity spherical aluminum oxide crude product. The prepared low-radioactivity spherical alumina powder is compact in structure, high in thermal conductivity, low in uranium content and suitable for EMC production and application.
Owner:YAAN BESTRY PERFORMANCE MATERIALS CORP

Method and device for purifying printing and dyeing wastewater based on TAPB-DMTA COF Fenton-like synergistic bacteria and algae

The invention relates to the technical field of sewage treatment, in particular to a method and device for purifying printing and dyeing wastewater based on TAPB-DMTA COF Fenton-like synergistic bacteria and algae. According to the specific technical scheme, the printing and dyeing wastewater purification method comprises the following steps that 1, printing and dyeing wastewater is introduced into a photocatalytic Fenton-like reactor, porosity-modified photocatalysts TAPB-DMTA COF and H2O2 are added into the photocatalytic Fenton-like reactor, a baffle plate is arranged in the photocatalytic Fenton-like reactor, the angle of the baffle plate is 30-45 degrees, and the angle of the baffle plate is 30-45 degrees; a first illumination module is arranged outside the photocatalytic Fenton-like reactor; and (2) introducing the wastewater treated in the step (1) into an algal-bacterial symbiotic SNAD reactor, and adding a photocatalyst and a multi-walled carbon nanotube into the algal-bacterial symbiotic SNAD reactor. The photocatalytic Fenton-like reactor disclosed by the invention takes porosity modified TAPB-DMTA COF as a photocatalyst aiming at dyestuff which is difficult to degrade, so that complete degradation of the dyestuff is realized. For ammonia nitrogen pollutants, the bacterial-algae symbiotic SNAD reactor cancels traditional mechanical aeration, the microbial extracellular electron acquisition capability is optimized through a biological enhancer, and efficient and green removal of total nitrogen can be realized without adding an organic carbon source.
Owner:BEIJING UNIV OF TECH

Method for extracting lithium carbonate from clay type lithium resource

The invention provides a method for extracting lithium carbonate from clay type lithium resources, and relates to the technical field of lithium extraction. The method comprises the following steps: carrying out first mixing on a clay type lithium resource and sodium sulfate, and roasting to obtain a roasted material; the roasted material is subjected to water leaching to obtain first ore pulp; the first ore pulp and sodium hydroxide are secondarily mixed to obtain second ore pulp; carrying out third mixing on the second ore pulp and calcium chloride, and carrying out solid-liquid separation to obtain tempered liquid; carrying out nanofiltration, first reverse osmosis and impurity removal on the conditioned solution to obtain an impurity-removed solution; and carrying out fourth mixing on the impurity-removed solution and the saturated sodium carbonate solution to obtain lithium carbonate. According to the method, sodium sulfate serves as an auxiliary agent to achieve selective efficient extraction of lithium in the clay type lithium ore, then lithium sulfate in second ore pulp is converted into lithium chloride through calcium chloride, and the obtained tempered liquid is suitable for a nanofiltration-reverse osmosis process.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD +2

Method for recycling overhaul slag and chromium-containing aluminum mud

The invention relates to the technical field of hazardous waste resource utilization, in particular to a method for recycling overhaul slag and chromium-containing aluminum mud. The overhaul slag contains fluoride, cyanide and carbon, the chromium-containing aluminum mud contains aluminum and hexavalent chromium, and the method comprises the following steps: carrying out redox reaction on inorganic acid, the chromium-containing aluminum mud and the overhaul slag to obtain a decyanation material containing fluoride, carbon, aluminum and chromium; carrying out a precipitation reaction on the decyanation material by using a calcium-containing alkaline oxide to obtain a precipitation material containing chromium, aluminum, carbon and fluorine; carrying out chlorination reaction on the precipitation material by using preheated chlorine to obtain aluminum-containing chlorinated flue gas and chromium-containing chlorinated slag; separating and purifying the aluminum-containing chlorinated flue gas to obtain an aluminum-containing solid phase; and washing the chromium-containing chlorination slag to obtain a trivalent chromium-containing solution. According to the method, the chromium-containing aluminum mud and the overhaul slag are used as raw materials, and the removal effect of toxic elements in the overhaul slag and the chromium-containing aluminum mud and the recovery rate of valuable elements such as aluminum and chromium can be synchronously improved through the oxidation-reduction reaction, the precipitation reaction and the chlorination reaction.
Owner:ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO +1

Method, system and equipment for identifying and removing glasses based on deep learning

The invention discloses a deep learning-based glasses identification and removal method, system and device, and the method comprises the steps: inputting a face image set into a glasses dictionary for identification, and obtaining a glasses-wearing face image set and a glasses-free face image set; dividing the glasses-wearing face image set according to a first divider to obtain a non-transparent glasses face image set and a transparent glasses face image set; dividing the transparent glasses face image set according to a second divider to obtain a rimless glasses face image set, a half-frame glasses face image set and a full-frame glasses face image set; constructing a glasses removal model based on the generative adversarial network; and inputting the face image set into a corresponding glasses removal model for glasses removal to obtain a corresponding glasses-free face image set. According to the invention, glasses removal based on multiple features is realized, and the generated glasses-free face image keeps high consistency in identity features and visual effects.
Owner:STATE GRID ELECTRONIC COMMERCE TECH CO LTD +3

Optical orbital angular momentum identification method and system based on binary neural network model

The invention provides an optical orbital angular momentum identification method and system based on a binary neural network model, and is used for solving the technical problems that an OAM identification method based on a spatial light modulator deep learning method is high in calculation complexity, large in memory occupation and difficult to meet the application requirements of light weight and real-time performance of space laser communication. According to the optical orbital angular momentum identification method based on the binary neural network model provided by the invention, the identification of different topological charges OAM is realized by constructing the binary neural network model, and compared with a traditional OAM identification method based on a spatial light modulator deep learning method, the method provided by the invention adopts a binary weight and a binary activation function, so that the identification accuracy is improved. And the parameter storage requirement is obviously reduced. Meanwhile, according to the binary neural network model, PopCount processing is adopted to replace convolution operation, the calculation amount is reduced, the real-time performance is enhanced, and the requirement of application scenes such as inter-satellite communication for rapid recognition can be met.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Waste heat recovery heat management system and method for vehicle

The invention provides a waste heat recovery heat management system and method for a vehicle, and the system comprises an air conditioning device which comprises an air conditioning host (HVAC), a compressor and a condenser which are connected in sequence; one end of the heat exchange device is connected to the refrigerant input end of the compressor, and the other end of the heat exchange device is connected between the condenser and the HVAC; wherein when the condenser works, the HVAC, the compressor and the condenser form a refrigerating loop; and when the condenser does not work, a waste heat recovery loop is formed among the HVAC, the compressor, the condenser and the heat exchange device. The refrigerant is used for heating the surface of the evaporator and drying moisture in the evaporator and the air conditioner box, the humid environment in the air conditioner box is avoided, mold breeding is eradicated, and the problem that peculiar smell is generated when the air conditioner is started is solved.
Owner:ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +1

Stainless steel electrolytic polishing pipe machining device

The utility model discloses a stainless steel electrolytic polishing pipe processing device which comprises a cleaning assembly, a drying assembly, an air shower and a dust-free workshop which are sequentially arranged, the cleaning assembly comprises a plurality of cleaning tanks which are arranged side by side, and the cleaning tanks are sequentially connected through conveying pipes to form a cleaning water flow channel. A water inlet pipe is connected to the outside of the cleaning tank at one end of the cleaning water flow channel, and a water outlet pipe is connected to the outside of the cleaning tank at the other end of the cleaning water flow channel; a lifting plate is arranged in the cleaning tank, lifting rings are connected to the two sides of the lifting plate, and the upper ends of the lifting rings extend to the outer side of the cleaning tank and are connected with a lifting appliance through lifting ropes. The stainless steel electrolytic polishing pipe cleaning and drying device can improve the cleaning and drying effects on stainless steel electrolytic polishing pipes and improve the conveying efficiency of the pipes in the machining process.
Owner:HUZHOU ZHONGRUI CLEANING TECH CO LTD