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60results about How to "Has removed" patented technology

Horticultural long-acting and slow-release straw nutritional soil as well as preparation method and using method of nutritional soil substrate

The invention discloses horticultural long-acting and slow-release straw nutritional soil as well as a preparation method and a using method of nutritional soil substrate. In percentages by weight, the nutritional soil contains 20 percent of substrate and 80 percent of horticultural soil; the substrate contains 25 percent of perlite, 65 percent of rice straws or wheat straws, 2.0 percent of slow-release agent, 0.75 percent of calcined lime, 0.75 percent of straw well-rotten fungicide, 3.0 percent of nitrogenous fertilizer, 1.0 percent of pure phosphatic fertilizer, 1.75 percent of potassic fertilizer and 0.75 percent of microelement fertilizer; the preparation method of the substrate comprises the following steps: unbaling rice straws or wheat straws, putting under blazing sun for 3-4 daysfor sterilizing; crashing rice straws or wheat straws by a crasher into straw sections with the length of 0.8-1.2cm; and evenly mixing 25 percent of perlite, 65 percent of rice straws or wheat straws, 2.0 percent of slow-release agent, 0.75 percent of calcined lime, 0.75 percent of straw well-rotten fungicide, 3.0 percent of nitrogenous fertilizer, 1.0 percent of pure phosphatic fertilizer, 1.75percent of potassic fertilizer and 0.75 percent of microelement fertilizer to prepare the substrate, and packaging the substrate; and the using method of the nutritional soil comprises the following step: fetching 80 percent of horticultural soil and 20 percent of substrate in percentages by weight. The nutritional soil has no putrefactive odor and musty taste, synchronous straw fermentation rot and flower and plant growth as well as slowly-released nutritional ingredients, and keeps the activity and the self nutrient circulation for a long time.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Process for removing sulfur dioxide for smoke using papermaking white mud

InactiveCN1709554AHas removedWidely applicable removalDispersed particle separationSerum poolSlurry
A craft that makes use of paper making white mud to eliminate sulfur dioxide in soot comprises the steps of: Add the circular water from pellucid pool and white mud to slurry pool; After mixing round, put them to serum pool, put them to desulfurization tower by add-pressure pump to contact with soot; Reacted liquor flow from the bottom of desulfurization tower and go to deposition pool; The circular water goes to pellucid pool to be used again. The present invention uses simple equipment, has high efficiency of desulfurization and low cost. It uses paper making white mud as desulfurization to change waster to treasure and has a large value to apply and extend.
Owner:吴金泉

Compound cow hoof bath lotion and preparation method thereof

InactiveCN107837398ABroad-spectrum bactericidal algicidal abilityGood slime stripping effectAntibacterial agentsAntisepticsDiseaseLotion
The invention discloses a compound cow hoof bath lotion. The compound cow hoof bath lotion comprises the following components in parts by weight: 1-45 parts of a sterilizing agent, 1-40 parts of a hoof protection agent, 1-20 parts of a plant extract product, 1-20 parts of an astringent, 1-15 parts of a synergist, and 10-30 parts of deionized water. The protect can be used for preventing generationof cow hoof disease, disease condition can be controlled while disease happens, the compound cow hoof bath lotion does not contain formaldehyde, excitant and carcinogenicity on people and livestock can be avoided, and environment pressure due to hoof bath by single usage of copper sulphate can be alleviated through direct discharge. The invention also discloses a preparation method of the compound cow hoof bath lotion, which has the advantages of simple operation and easy acquisition of raw material, and is suitable for large-scale production.
Owner:SHANGHAI CONSON BIOLOGICAL TECH

Bamboo charcoal filter element and preparation method thereof

The invention discloses a bamboo charcoal filter element and a preparation method thereof. The bamboo charcoal filter element comprises following raw materials, by weight, 20 to 24 portions of nanometer titanium dioxide, 24 to 26 portions of white clay, 12 to 14 portions of clay, 9 to 12 portions of bauxite, 4 to 6 portions of zirconium tetrafluoride, 6 to 8 portions of triolein, 32 to 34 portions of polypropylene, 1 to 2 portions of microcrystalline wax, 10 to 12 portions of nanometer silicon dioxide, 4 to 6 portions of sodium metasilicate, 90 to 100 portions of bamboo charcoal powder and 58 to 60 portions of modified attapulgite. The bamboo charcoal filter element possess excellent adsorption performance; is not harmful but benefit for the environment; is high in purification efficiency, and long in service life; is resistant to corrosion; and is capable of removing micro dust in the air.
Owner:天长市天乐电器厂

Functional latex as well as preparation method and uses thereof

The invention provides a kin of function latex for adjusting temperature and purifying air, comprising microcapsule phase-change material, nm photocatalysis material and liquid medium. The invention also provides a preparation method of the function latex and composite air filtering material using the function latex and preparation method of the composite air filtering material. The composite air filtering material has good effects such as adjusting temperature, purifying air, antibiosis, and removing volatile and harmful gas.
Owner:THE HONG KONG POLYTECHNIC UNIV

Multi-pipeline connecting flange

The invention relates to a multi-pipeline connecting flange which comprises a first flange body, a second flange body, a sealing gasket, fastening bolts and nuts. The sealing gasket is arranged between the first flange body and the second flange body. The corresponding positions of the first flange body and the second flange body are each provided with at least two pipe containing holes and are further each provided with at least two fastening through holes. The fastening bolts sequentially penetrate the fastening through holes of the first flange body and the fastening through holes of the second flange body to be in threaded connection with the nuts. According to the multi-pipeline connecting flange, due to the fact that the corresponding positions of the first flange body and the second flange body are each provided with the at least two pipe containing holes, multiple pipelines can be connected at the same time, the engineering efficiency is greatly improved, manpower and material resources are saved, and the construction progress is accelerated.
Owner:YANCHENG FENGGONG MACHINERY

2.79 mu m Q-switched erbium laser dental instrument

The invention discloses a 2.79 mu m Q-switched erbium laser dental instrument. The 2.79 mu m Q-switched erbium laser dental instrument comprises a laser power supply, a laser component, a laser water cooling system, a light guide output system, a gas and water spraying system and a central control system; the laser power supply is used for providing energy to the laser component; the laser component consists of a total-reflection chamber piece, a polarizer, a Q-switched crystal, a xenon lamp, a laser rod, a light condensing chamber, a wave plate and an output chamber piece; the laser water cooling system is used for cooling the laser rod and the xenon lamp in the laser component; the light guide output system is used for conducting laser, and is convenient to operate and use; the gas and water spraying system is used for spraying a mixture of gas and water to a laser acted tooth tissue, and has the effects of reducing the temperature of the tissue and participating laser treatment; the central control system is used for controlling the parameters of the laser power supply, the laser water cooling system and the gas and water spraying system to ensure the coordination work among the subsystems. The 2.79 mu m Q-switched erbium laser dental instrument has pulse Q-switched laser which has short pulse width and high peak power and acts the tooth tissue to improve ablation precision; meanwhile, the thermal damage to peripheral tissues also can be effectively reduced; the pain of a patient can be reduced effectively.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Method and device for recovering NMP (N-methyl pyrrolidone) waste gas in lithium battery production with membrane separation method

The invention relates to a technology for recovering NMP (N-methyl pyrrolidone) waste gas in lithium battery production with a membrane separation method and belongs to the technical field of organicwaste gas recovery. The technology comprises steps as follows: NMP waste gas in a lithium battery pole piece drying box is fed into an absorption tower by blast apparatus and absorbed by utilizing water as a solvent, NMP effluent is formed at the bottom of the absorption tower and enters a porous ceramic filtering membrane separator through a circulating pump, NMP and water penetrate through a porous ceramic filtering membrane under the action of pressure difference before and after NMP and water penetrate through the porous ceramic filtering membrane, an NMP-water clear liquid is formed on the rear side of the porous ceramic filtering membrane, and an intercepted liquid returns to a circulating tank; the NMP-water clear liquid is stored in a clear liquid tank and enters a heater for heating under the action of a feed pump; when the heated clear liquid passes through a pervaporation membrane, water penetrates through the membrane while NMP is intercepted, and accordingly, NMP and waterare separated. The operating temperature is lower than the boiling point of an NMP recovered liquid in the recovery process, recovered NMP does not need high temperature and negative pressure and haslow probability of producing new impurities, energy consumption is low, operation is simple, and the technology is a green NMP waste gas recovery technology.
Owner:NANJING MEMBRANE IND TECH RES INST CO LTD

Filter core used for filtering harmful gas and preparation method thereof

The invention discloses a filter core used for filtering harmful gas and a preparation method thereof. The filter core comprises following raw materials, by weight, 2 to 4 portions of polyethylene powder, 18 to 20 portions of bamboo charcoal powder, 12 to 14 portions of meerschaum powder, 4 to 6 portions of diatomite, 1 to 2 portions of sodium carbonate, 4 to 6 portions of soybean oil, 2 to 3 portions of starch, 1 to 2 portions of sodium dodecyl benzene sulfonate, 30 to 35 portions of white clay, 10 to 12 portions of modified attapulgite and an appropriate amount of water. The filter core is high in purification efficiency, less in pressure loss, and long in service life; is resistant to high temperature and corrosion; is capable of removing micro dust in the air; can be used for air filtration of air conditioning systems, water filtration, and suction filtration of vehicle filter cleaners; and is suitable for places with poor environmental conditions.
Owner:天长市天乐电器厂

Lemon-containing composite fruit enzyme nutrient solution and preparation method and application thereof

The invention discloses a lemon-containing composite fruit enzyme nutrient solution, mainly made by fermenting lemon, apple, pawpaw, banana, tangerine, pear and kiwifruit; the fruits are washed separately before air drying, peeling, and pulping; lactose is boiled with water to obtain lactose solution; the pulp and the lactose solution are mixed; a protease mixture is added to carry out enzymatic hydrolysis; lactic acid bacteria are inoculated to the mixed solution from enzymatic hydrolysis for the purpose of hermetic fermentation; the mixed solution is fermented before filtering to obtain thelemon-containing composite fruit enzyme nutrient solution. The lemon-containing composite fruit enzyme nutrient solution prepared herein has rich vitamins, amino acids and trace elements beneficial tohuman, can quickly enhance bodily gastrointestinal mobility, promote elimination of stool, clear endotoxin of large intestines, purify blood, renew and beautify the skin, improve visceral functionality and promote cell activity, can effectively improve bodily headache and dizziness, back pain, constipation, weakness of limbs, anxiety and other sub-health problems, and can quickly improve bodily functionality.
Owner:重庆汇达柠檬科技集团有限公司

Bacteria-algae composition for synergistically degrading high-concentration ammonia nitrogen and phosphate as well as application and method thereof

PendingCN113003727AEfficient removalSolve the problem of not being able to remove phosphorusWater contaminantsTreatment with aerobic and anaerobic processesTotal nitrogenP phosphate
The invention discloses a bacteria-algae composition for synergistically degrading high-concentration ammonia nitrogen and phosphate as well as application and a method thereof. The composition is prepared from a heterotrophic nitrification-aerobic denitrification complex microbial inoculant and lesser chlorella, the complex microbial inoculant is formed by compounding cupriavidus, alcaligenes faecalis, acinetobacter and ochrobactrum TAC-2; chlorella is introduced into the complex microbial inoculant to form a bacterial-algae symbiotic system, chlorella generates oxygen through photosynthesis, dissolved oxygen is provided for denitrification of the complex microbial inoculant, the aeration energy consumption of the complex microbial inoculant system is reduced, and the complex microbial inoculant converts organic matters in wastewater into carbon dioxide through biological action to meet the growth requirement of chlorella. The method can improve the removal of ammonia nitrogen and total nitrogen by the complex microbial inoculant, increase the phosphate removal capability, solve the problem that the complex microbial inoculant cannot remove phosphorus, and can be used for treating high-concentration ammonia nitrogen and phosphate wastewater.
Owner:CHONGQING UNIV OF TECH

Fresh air purification system in full replacement mode

InactiveCN105953351AHas removedThorough purification and recyclingCombination devicesGas treatmentDecompositionFiltration
The invention discloses a fresh air purification system in a full replacement mode. The fresh air purification system in the full replacement mode has the multiple functions of primary-efficiency filtration, organic substance decomposition with photocatalyst, medium-efficiency filtration, high-efficiency electrostatic dust collection, ozone decomposition, total heat exchange and the like, is capable of effectively removing 2.5 [mu]m or below fine particles in air and has the functions of sterilization, decomposition of formaldehyde, methylamine, benzene, xylene, TVOC, harmful organic substances and excessive ozone in the air and total heat exchange at the same time, so that fresh air fed into a room is comprehensively purified, and the cold (hot) quantity of the indoor air is recycled.
Owner:BEIJING CENTURY BETTER ENERGY CONSTR TECH

Healthy environment-friendly paint for indoor wall

The invention discloses a healthy and environment-friendly coating for indoor walls. The proportioning ratio of each raw material component of the coating is: nano-titanium dioxide, 3-12 parts, vinyl acetate emulsion, 15-25 parts, acrylic emulsion, 10-20 parts Bamboo fiber powder, 8-15 parts, shell powder, 8-15 parts, zinc oxide, 3-10 parts, carboxymethyl cellulose, 0.1-0.9 parts, chitin, 2-10 parts, sodium carboxylate, 0.1-0.8 parts, polydimethylsiloxane, 0.3-1.0 parts of water, the ratio of the water to the total amount of the base material is 1:1.2-1:1.5. The photolysis of nano-titanium dioxide can completely decompose harmful organic substances such as indoor formaldehyde and toluene, pollutants, bacteria and other harmful organic substances, and the obtained environmentally friendly coating has good moisture absorption, breathability, anti-mildew and antibacterial effects.
Owner:张梦影

Environment-friendly coating containing pinus koraiensis phytoncide

The invention discloses environment-friendly coating containing pinus koraiensis phytoncide. The environment-friendly coating contains 1-3 wt% of pinus koraiensis phytoncide. The coating has the effects of removing formaldehyde and VOCs, the effective rate is 99% or above, the coating further has the effects of killing bacteria and dust mites, removing ammonia gas and improving the indoor air quality, the indoor dust mite avoiding rate is 98% or above, meanwhile, pressure of people can be relieved, concentration is strengthened, and the learning efficiency is improved. Because the micro capsulation technology is adopted, the medicine efficiency can lasts for a long time (three years or above), and the market prospects are quite broad.
Owner:FUJIAN LESHIBI ENVIRONMENTAL TECH CO LTD

Novel riverway water treatment purifying agent

The invention discloses a novel riverway water treatment purifying agent. The purifying agent is prepared from, by weight, 8-10 parts of disinfectant, 5-10 parts of polymer flocculation compound, 8-10 parts of diatomite, 3-5 parts of potassium permanganate, 5-10 parts of particle activated carbon, 5-10 parts of zeolite powder and 10-20 parts of ferric sulfate. Compared with the prior art, the purifying agent has the advantages that the purifying agent has an effective organic removal effect and the like, also has the flocculation effect and greatly reduces operation cost, practicality is good, the preparation process is simple, and cost is low.
Owner:慎叶

Urban sewage treatment compound bacteria and preparation method thereof

InactiveCN105368748AGrow fastFungal cells are largeFungiBacteriaMunicipal sewageMicrobiology
The invention discloses urban sewage treatment compound bacteria and a preparation method thereof. The compound bacteria comprise mixed strains and carriers. The mixed strains comprise, by weight, 10-15 parts of saccharomycetes, 5-8 parts of bacillus subtilis, 20-30 parts of photosynthetic and 3-10 parts of actinomyces. The carriers are corn straw powder. The weight ratio of the mixed strains to the carriers is 1:5. The preparation method includes the steps: mixing the mixed strains and the carriers according to a preset weight ratio; uniformly stirring the mixed strains and the carriers; enabling the mixture to stand for 3 hours; drying the mixture at the low temperature of 5 DEG C; controlling water content in 2%-6% to obtain the sewage treatment compound bacteria. Raw materials of the compound bacteria are conveniently and easily obtained, and the compound bacteria are low in cost, environmentally friendly, pollution-free and high in sewage treatment efficiency. The strains of the compound bacteria are symbiotic and coordinated, and the preparation method of the compound bacteria is simple, convenient, easy and beneficial to industrial production.
Owner:WUXI TUONENG AUTOMATION TECH

Application of metal organic framework material in removal of aflatoxin and method for removing aflatoxin

The invention relates to the field of analysis and detection, discloses application of a metal organic framework material in removal of aflatoxin and a method for removing the aflatoxin, provides an application of a metal organic framework material with enzyme-like activity in removal of aflatoxin, and also provides a method for removing aflatoxin. The method comprises the following step: contacting a metal organic framework material with enzyme-like activity and hydrogen peroxide with a sample containing aflatoxin. According to the method, aflatoxin can be removed through the adsorption-degradation synergistic effect, so that the time is saved while the aflatoxin removal efficiency is greatly improved, and the cost is effectively saved.
Owner:NANJING NORMAL UNIVERSITY

Plant source deodorant and preparation method thereof

The invention discloses a plant source deodorant. Effective constituents of the plant source deodorant consist of a camphor tree extractive, a Mahonia bealei extractive, an oil tea fruit shell extractive and a honeysuckle extractive, and the mass ratio of the camphor tree extractive to the Mahonia bealei extractive to the oil tea fruit shell extractive to the honeysuckle extractive is (1 to 3): (0.1 to 0.2): (0.3 to 0.8): (2 to 4). The pure natural plant extracting solutions are taken as raw materials, and are relatively low in cost, safe, environmentally-friendly, poisonless, harmless and safe to use; foul smell in circulating water in the papermaking production process is effectively removed, secondary pollution to the environment cannot be caused, and the antibacterial effect is obvious.
Owner:INST OF APPLIED CHEM JIANGXI ACAD OF SCI

Water purifying agent for rapid treatment of industrial wastewater and preparation method thereof

The invention relates to a water purifying agent for rapid treatment of industrial wastewater and a preparation method thereof, wherein the water purifying agent comprises the following components inparts by weight: 20-35 parts of a nano diatomite powder / cellulose composite material, 5-10 parts of alkyl glycoside or derivative surfactant thereof, 60-75 parts of a flocculating agent and 2-6 partsof nitrifying bacteria. The water purifying agent prepared by the invention is simple in components and reasonable in proportion, does not contain heavy metal components in the formula, is mostly a natural compound, is an environment-friendly water purifying agent, and avoids secondary pollution to a water body; cellulose and diatomite powder are subjected to nanocrystallization and compounding, have huge specific surface area, can adsorb a large number of polluting organic matters, are fully mixed with specific contents of raw material components, and have the effects of rapid sedimentation,decolorization and COD removal; and alkyl glycoside or derivatives thereof are added, so that the water purifying agent has sterilization and disinfection effects on the water body, can effectively kill bacteria and microorganisms in the water body, and avoids water body pollution caused by mass propagation.
Owner:江苏建霖环保科技有限公司

Self-cleaning water permeable brick for releasing negative ions and preparation method thereof

InactiveCN106396488APromote catalysisCatalytic continuous and thoroughCeramicwareBrickHazardous substance
The invention discloses a self-cleaning water permeable brick for releasing negative ions and a preparation method thereof. The brick is characterized in that the brick is prepared by the following raw materials in parts by weight: 2-4 parts of tourmalinite, 3-6 parts of titanium dioxide, 1-3 parts of straw, 10-20 parts of ethanol, 4-8 parts of a silver-ammonia solution, 25-35 parts of ethyl acetate, 8-14 parts of active carbon, 3-5 parts of polyacrylate, 2-3 parts of polyamide, 3-5 parts of waste fabric, 20-30 parts of aeolian sand, 30-40 parts of a polytetrafluoroethylene emulsion, 10-15 parts of epoxy resin GCC135, and 10-15 parts of a curing agent GCC137. Silver particles are uniformly loaded on the surface of titanium dioxide, active carbon is used for loading titanium dioxide, so that a series of continuously and thoroughly self-cleaning effects, for examples active carbon adsorbs sulfur dioxide and other substances, silver ions activate and promote catalysis of titanium dioxide, and titanium dioxide decomposes the substances, are realized; negative ions released by added tourmalinite can decompose poisonous and harmful substances into substances or micromolecular substances with nontoxicity and innocuousness.
Owner:马鞍山市广立方彩砖有限公司

Novel garbage deodorant solution

The invention discloses a novel garbage deodorizing liquid, which comprises the following components by weight: disinfectant: 10-15 parts, ammonia water: 5-10 parts, granular activated carbon: 10-20 parts, sodium sulfite: 1-3 parts, silicic acid Aluminum magnesium: 4~8, zinc oxide: 15~20, aluminum stearate: 3~5, talcum powder: 3~8, essence: 1~3. Compared with the prior art, the present invention has the following beneficial effects: (1) the present invention not only can effectively have effects such as deodorization, and has disinfection effect concurrently, greatly reduces operating cost, and its practicability is stronger; (2) ) The preparation process is simple and the cost is low.
Owner:慎叶

Scraping, stacking and transporting device of automatic double-laminated-board hot press

The invention relates to the technical field of laminated board hot presses, in particular to an automatic double-laminated board hot press edge scraping, stacking and transporting device which comprises a double-laminated board hot press, a conveying belt and a plurality of material boards, and further comprises a U-shaped frame, a plurality of material boards and a plurality of material boards, a guide device is arranged between the material pushing transverse plate and the U-shaped frame; and the vertical plate A and the vertical plate B are both fixed to the lower side of the material pushing transverse plate, a plurality of material pushing blocks are rotationally arranged on one side of the vertical plate A and one side of the vertical plate B through rotating shafts, and an automatic back-and-forth movement device is arranged between the vertical plate B and the U-shaped frame. Through the arrangement of the conveying belt, the material plate, the U-shaped frame, the material pushing transverse plate, the vertical plate A, the vertical plate B, the material pushing block, the table frame, the L-shaped supporting frame and the L-shaped sliding frame, the automatic side changing and stacking machine has the functions of automatic conveying, automatic feeding, automatic discharging, automatic side changing, automatic side scraping and automatic stacking.
Owner:WUXI HUASHENG HEAVY IND TECH CO LTD

Novel sludge deodorant liquid

The invention discloses a novel sludge deodorant liquid, made from, by weight, 5-10 parts of a disinfectant, 10-15 parts of citric acid, 5-10 parts of powdered activated carbon, 1-3 parts of sodium sulfite, 5-10 parts of magnesium aluminum silicate, 5-8 parts of zinc oxide, 5-15 parts of cinnamic acid, 5-10 parts of geranyl formate, and 1-3 parts of an essence. Compared with the prior art, the novel sludge deodorant liquid has the advantages that the novel sludge deodorant liquid has the effects such as removing fouling odor, has disinfecting function, allows operation cost to be greatly reduced, and is highly practical; the preparation process is simple and low in cost.
Owner:佛山慧创正元新材料科技有限公司

Environment-friendly wood paint for toys

The invention discloses an environment-friendly wood paint for toys, which is compounded from the following components in percentage by mass: 35-40% of water-based acrylic acid emulsion, 9-12% of methyl methacrylate, 11-14% of 2-hydroxyethyl acrylate, 9-11% of nano calcium carbonate, 0.1-0.3% of mildew preventive, 0.6-1% of nano silver antimicrobial agent, 3-5% of aluminum oxide particle, 6-8% of animal and vegetable oil composition, 1-3% of diatomite, 13-20% of pearlescent pigment, 0.6-3% of colorant, 0.2-0.5% of wax emulsion, 0.1-0.15% of defoaming agent, 0.05-0.15% of pH regulator, 0.5-2% of anti-settling agent, 0.1-0.3% of dispersing agent, 1-3% of film forming assistant, 0.1-0.3% of adhesion promoter, 1-2% of bamboo charcoal powder and the balance of water. The environment-friendly wood paint for toys has the characteristics of bright color, high adhesive force for wood materials, low tendency to shedding, environment friendliness, no harm to the human body and the like.
Owner:山东永辰环境科技有限公司

Method for preparing graphene through electrochemical anode stripping

The invention provides a method for preparing graphene through electrochemical anode stripping, which comprises the following steps: taking a molybdate aqueous solution as an electrolyte, respectively taking two pieces of graphite paper as an anode and a cathode, connecting the two pieces of graphite paper with two poles of a direct-current power supply, placing the anode and the cathode in the electrolyte, electrifying and carrying out electrochemical anode stripping, and obtaining an electrolytic solution containing a graphene precursor; and purifying the electrolytic solution containing the graphene precursor to obtain the graphene dispersion liquid. The invention provides a novel method for preparing graphene through electrochemical anode stripping, the molybdate aqueous solution is introduced as the electrolyte for electrochemical stripping for the first time, and the method has the advantages of simplicity and convenience in operation, few steps, safety, controllability, environmental friendliness, low cost, high repeatability and the like, and is suitable for large-scale production. Moreover, the number of obtained graphene sheets is not more than 76% and not more than five, and the graphene sheets can be uniformly dispersed in water and have good water solubility and stability.
Owner:UNIV OF SCI & TECH OF CHINA

Carboxylic acid ligand modified hydrothermal carbon material and method for removing heavy metal ions in wastewater

The invention discloses a carboxylic acid ligand modified hydrothermal carbon material and a method for removing heavy metal ions in water. The carboxylic acid ligand modified hydrothermal carbon material is prepared by a method comprising the following steps: mixing and ball-milling a carboxylic acid ligand and hydrothermal carbon powder, washing and drying the mixture to obtain the carboxylic acid ligand modified hydrothermal carbon material. The carboxylic acid ligand modified hydrothermal carbon material has the advantages that the common ligand is modified on the surface of hydrothermal carbon through a ball-milling method, the operation is simple, and the capacity of removing heavy metal ions can be remarkably improved; the hydrothermal carbon has the characteristics of low price andenvironmental friendliness and can be widely used for actual treatment of heavy metal pollution. The method has the general capability of removing different heavy metal ions.
Owner:WUHAN POLYTECHNIC UNIVERSITY

Novel deodorant for sewage treatment plant

The invention discloses a novel deodorant for a sewage treatment plant. The novel deodorant is prepared from, by weight, 8-10 parts of a sanitizer, 3-8 parts of sodium hydroxide, 10-20 parts of granular active carbon, 1-3 parts of ethylene glycol, 4-8 parts of magnesium aluminum silicate, 20-40 parts of zinc oxide, 3-5 parts of sodium pyrophosphate, 3-8 parts of talcum powder and 0.1-0.3 part of essence. Compared with the prior art, the novel deodorant has the advantages that odor can be effectively removed, the disinfection effect is achieved, the operation cost is greatly lowered, and the practicability is high; the preparation technology is simple, and the cost is low.
Owner:慎叶

A method and device for recovering n-methylpyrrolidone waste gas from lithium battery production by membrane separation

The invention relates to a technology for recovering NMP (N-methyl pyrrolidone) waste gas in lithium battery production with a membrane separation method and belongs to the technical field of organicwaste gas recovery. The technology comprises steps as follows: NMP waste gas in a lithium battery pole piece drying box is fed into an absorption tower by blast apparatus and absorbed by utilizing water as a solvent, NMP effluent is formed at the bottom of the absorption tower and enters a porous ceramic filtering membrane separator through a circulating pump, NMP and water penetrate through a porous ceramic filtering membrane under the action of pressure difference before and after NMP and water penetrate through the porous ceramic filtering membrane, an NMP-water clear liquid is formed on the rear side of the porous ceramic filtering membrane, and an intercepted liquid returns to a circulating tank; the NMP-water clear liquid is stored in a clear liquid tank and enters a heater for heating under the action of a feed pump; when the heated clear liquid passes through a pervaporation membrane, water penetrates through the membrane while NMP is intercepted, and accordingly, NMP and waterare separated. The operating temperature is lower than the boiling point of an NMP recovered liquid in the recovery process, recovered NMP does not need high temperature and negative pressure and haslow probability of producing new impurities, energy consumption is low, operation is simple, and the technology is a green NMP waste gas recovery technology.
Owner:江苏旭一高科技有限公司

Preparation method of atom-level active site composite nanocatalytic fiber used for degrading indoor VOCs

The invention discloses a preparation method of an atom-level active site composite nanocatalytic fiber used for degrading indoor VOCs. At first, noble metal base active site catalysts are prepared byimpregnation method, and then doped into the polymer fiber by electrospinning technology, the composite nanocatalytic fiber is synthesized, while the high catalytic activity of the atom-level activesite catalyst is maintained, so as to realize the combination of the atom-level active site catalyst into an excellent macrostructure capable of maintaining its own high catalytic activity, and strengthen the application of the atom-level active site catalyst. As that method is simple in operation and low in cost, the composite nanofibers can be used to synthesize clothing, air-conditioning filterscreen, wallpaper and so on, so that clothing, air-conditioning and wallpaper can not only realize their original value, but also be used as a novel air purification equipment to realize the effective control of indoor VOCs such as formaldehyde and benzene series by catalytic oxidation technology at room temperature, thus improving indoor air quality.
Owner:TIANJIN UNIV
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