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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

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

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

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

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

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

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
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