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69results about How to "Solve effective use" patented technology

Method for microbe fuel battery and power generation by using straw stalk

InactiveCN101188306ADoes not affect mass transferImprove efficiencyBiochemical fuel cellsElectricityFuel cells
A microbiological fuel cell and a method for generating electricity by use of straws relate to a fuel cell and a method for generating electricity. The invention solves the problem that crop straws are not used efficiently, and particularly straw solids are not directly used in MFC. The microbiological fuel cell of the invention is composed of a container, catalytic anodes, anode wires, air cathodes, cathode wires, a cathode cover and a sealing cover. The method of the invention includes the steps of the pretreatment of the straws, the detoxifying treatment of the straws to obtain a straw solid substrate and a straw liquid substrate, the start-up of the cell, the treatment of the straw solid substrate or the straw liquid substrate. When the electricity is generated by the invention by using the straw solid substrate, the maximum power of the cell reaches 502mW/m<2>, and the degradation rate is about 45percent. When the electricity is generated by using the straw liquid substrate, the maximum power reaches 1288m W/m<2>, and the degradation rate of COD is 60 percent. The invention has the advantages of simple technology, convenient operation, high efficiency, no pollution, reduction of cost and relief of the energy crisis, and the straws in rural areas can be used efficiently.
Owner:HARBIN INST OF TECH

Method for producing acetone-butanol by co-fermentation of pentoses and hexose

The invention provides a method for producing acetone butanol by jointly fermenting pentose and hexose. The method comprises the following steps: the pentose and the hexose are mixed, the weight of the pentose against the total weight of the mixture is between 5 and 75 percent, the mixture is added with a nitrogen source or a phosphorus source to obtain a raw material, and the raw material is subjected to cooking sterilization to obtain cooking mash; the cooking mash is cooled to a temperature of below 42 DEG C and injected with strains and fermented; and the fermented solution is filtered, distilled and rectified to obtain final acetone, butanol and ethanol products. By the invention, the method which effectively utilizes the joint fermentation of the pentose and the hexose to produce the acetone butanol is obtained. According to local conditions, lignocellulose is utilized to hydrolyze pentose and the hexose for joint fermentation to produce the acetone butanol, thereby realizing waste reutilization, facilitating environmental protection, promoting diversification of energy structure in China, ensuring safety of liquid fuel in China and having positive significance on improving creativity and research capability in the field of preparing biomass liquid fuel in China.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Method for producing potassium fulvate organic fertilizer by biological enzyme pretreatment and potassium hydroxide alkaline process wheat straw pulping black liquid extraction

The invention provides a method for producing a potassium fulvate organic fertilizer by biological enzyme pretreatment and potassium hydroxide alkaline process wheat straw pulping black liquid extraction, and belongs to the field of fertilizer production. The method comprises the three parts of pretreating wheat straw pretreatment black liquid by biological enzymes, extracting potassium hydroxide alkali process wheat straw boiling black liquid, and producing a finished product of the potassium fulvate organic fertilizer, wherein the process of pretreating wheat straw pretreatment black liquid by biological enzymes comprises the steps of wet process material preparation, wheat straw pretreatment by biological enzymes, and storage of black light containing rich potassium fulvic acid; the potassium hydroxide alkaline process wheat straw pulping extraction black liquid comprises extrusion of biological enzyme pretreatment wheat straws, mixing of wheat straws and potassium hydroxide medicine liquid in a pre-soaking machine, steaming ball steaming boiling spray discharging, and steamed and boiled black liquid collection and storage. The organic fertilizer production line comprises black liquid evaporation and concentration, guniting pelleting machine treatment, hot and cold sieving system treatment and organic fertilizer finished product packaging. The paper making black liquid is changed from waste into valuable materials; through biological enzyme pretreatment, the high-activity potassium fulvate organic fertilizer is produced.
Owner:宁夏同创秸科生物科技有限公司

Application of polypropylene fiber-containing cemented filling material to filling mining

InactiveCN107500634AMeet the filling strength requirementsImprove mechanical propertiesMaterial fill-upFilling materialsSlurry
The invention discloses application of a polypropylene fiber-containing cemented filling material to filling mining, belonging to the technical field of filling materials for mines. The invention also provides the filling material, comprising polypropylene fiber, cement and mine tailings. The invention also provides filling slurry. The filling slurry comprises 1-3 parts of polypropylene fiber, 200-260 parts of cement, 975-1074 parts of fine tailings and 664-813 parts of water, wherein the fiber has a length of 6-12 cm, and the mass concentration of the filling slurry is 60-64% after mixing and stirring. According to the invention, doping of polypropylene fiber into the polypropylene fiber-containing cemented filling material can effectively overcome the problems of low strength and proneness to cracking of a fine-tailing filling body after curing and improve the compressive performance and fracture resistance of the filling body. With the fiber-containing filling material, the compressive strength and tensile strength of the filling body can meet the requirements of mining on the strength of the filling body, unit consumption of filling cement per cubic meter is reduced, and the utilization rate of the fine tailings is improved, so the polypropylene fiber-containing cemented filling material is an innovative filling material for mines and has a wide application range and good promotion value.
Owner:CENT SOUTH UNIV +1

Production method of potassium fulvate organic fertilizer prepared from black liquor extracted through biological enzyme pretreatment and potassium hydroxide alkaline reed pulping

The invention discloses a production method of a potassium fulvate organic fertilizer prepared from black liquor extracted through biological enzyme pretreatment and potassium hydroxide alkaline reed pulping, and belongs to the field of fertilizer production. The production method comprises the following steps: using biological enzymes to process reeds to extract black liquor; boiling reeds to extract black liquor through a potassium hydroxide alkaline method, and producing finished products of potassium fulvate organic fertilizer. The biological enzyme pretreatment comprises steps of preparing raw materials through a wet method, using biological enzymes to process reeds, and storing the black liquor rich in potassium fulvate. The potassium hydroxide alkaline method comprises the following steps: extruding reeds, which has been preprocessed by biological enzymes, mixing the reeds with potassium hydroxide in a pre-soaking machine, boiling and steaming the mixture in a steam ball, and collecting the black liquor after steaming and boiling. The organic fertilizer production comprises steps of black liquor evaporation and concentration, pulp spraying and granulation, hot-cold sieving, and finished product package. The wastes are converted into valuable resources. The soil particle structure is improved. The soil is loosened. The water and fertilizer retaining performance of soil is enhanced.
Owner:宁夏同创秸科生物科技有限公司

Carboxymethylation modification method and applications of semi-cellulose in waste liquor from viscose fiber production

The invention relates to a carboxymethylation modification method and applications of semi-cellulose in waste liquor from viscose fiber production. The modification method comprises the steps of: adding monochloroacetic acid in a raw material which is alkaliferous semi-cellulose extracted from the waste liquor from viscose fiber production, reacting for 120-180min at 70-90DEG C, cooling, standing, washing supernated liquor with 90% ethanol, precipitating, and performing suction filtration to obtain a crude product; dissolving the crude product into water, and performing centrifugal separation; washing supernated liquor with 90% ethanol, precipitating, filtering, performing vacuum drying for 24h to obtain a carboxymethyl semi-cellulose product. After being applied to dispersing agents of coating, printing and dyeing, industrial water treatment and the like, the modified carboxymethyl semi-cellulose product has good adsorportion property, is low in usage amount and good in dispersity. The alkaliferous semi-cellulose extracted from the waste viscose fiber production liquor is subjected to carboxymethylation modification, the carboxymethylation modification method is simple in technology, easy to operate and low in production cost, the hydrophilicity of the modified semi-cellulose is greatly improved, the application performance is good, and the waste liquor pollution and the semi-cellulose plant resource reutilization problems can be reasonably solved.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Device for generating electricity by tide

A device for generating electricity by tide solves the problem of electricity generation by marine resources. The device comprises culvert pipes, piston sleeves, rack type piston rods, piston rod heads, compression springs, sealing strips, steel balls, guide sleeves, gearboxes, a set of transmission gears, a supporting base, universal couplers, a flywheel, an electricity generator and an output shaft. Piston bushes are arranged in the culvert pipes; the outer diameter of the piston sleeves is matched with inner holes of the culvert pipes, and the piston sleeves are sealed by the sealing strips; a set of ball sockets are arranged on the outer diameter surfaces of the piston sleeves; the steel balls are embedded into the ball sockets; one end of each rack type piston rod is connected with the corresponding piston sleeve through the corresponding piston rod head, and the other ends of the rack type piston rods are matched with inner holes of the guide sleeves; the compression springs are arranged between the inner holes of the piston sleeves and the rack type piston rods; the rack portions of the rack type piston rods are meshed with the transmission gears in the gearboxes; output of reciprocating motion of the rack type piston rods is in one-way rotation, and the gearboxes are fixed to the supporting base; and the output shaft of the gearboxes is in shaft connection with the electricity generator through the universal couplers and the flywheel, and therefore electric energy is output. According to the device, resources are effectively utilized, and benefits are giant.
Owner:SHENZHEN PUFANG ENVIRONMENTAL PROTECTION DEV

Externally heated oil shale destructive distillation process

An externally heated oil shale destructive distillation process is characterized by comprising the steps that oil shale which is dried and allows external water to be removed enters an externally heated horizontal rotating destructive distillation furnace from a destructive distillation storage hopper for heat exchange with a heat pipe, destructive distillation product semicoke and destructive distillation gas are fed into a gas-solid separation chamber simultaneously, solid semicoke is fed into a combustion furnace to be combusted, generated shale ash is discharged from the bottom of the combustion furnace, generated high-temperature flue gas is fed to the exterior of the externally heated horizontal rotating destructive distillation furnace for heat exchange with the heat pipe, and drying and dewatering are conducted on oil shale raw ore fed from the tail of the externally heated horizontal rotating destructive distillation furnace to a drying chamber under residual temperature of flue gas; gas in the gas-solid separation chamber is fed into a cooling recovery system for condensate recovery of shale oil, uncondensed gas is fed into the combustion furnace to be combusted, and generated flue gas is fed to the exterior of the externally heated horizontal rotating destructive distillation furnace for heat exchange or is fed into a nozzle located outside the externally heated horizontal rotating destructive distillation furnace to be combusted to generate high-temperature flue gas for heat exchange with the heat pipe.
Owner:NORTHEAST DIANLI UNIVERSITY

Method for producing acetone-butanol by co-fermentation of pentoses and hexose

The invention provides a method for producing acetone butanol by jointly fermenting pentose and hexose. The method comprises the following steps: the pentose and the hexose are mixed, the weight of the pentose against the total weight of the mixture is between 5 and 75 percent, the mixture is added with a nitrogen source or a phosphorus source to obtain a raw material, and the raw material is subjected to cooking sterilization to obtain cooking mash; the cooking mash is cooled to a temperature of below 42 DEG C and injected with strains and fermented; and the fermented solution is filtered, distilled and rectified to obtain final acetone, butanol and ethanol products. By the invention, the method which effectively utilizes the joint fermentation of the pentose and the hexose to produce the acetone butanol is obtained. According to local conditions, lignocellulose is utilized to hydrolyze pentose and the hexose for joint fermentation to produce the acetone butanol, thereby realizing waste reutilization, facilitating environmental protection, promoting diversification of energy structure in China, ensuring safety of liquid fuel in China and having positive significance on improving creativity and research capability in the field of preparing biomass liquid fuel in China.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Regenerated micro-powder activation method

The invention discloses a regenerated micro-powder activation method. The method comprises the following steps: (1) selecting materials: selecting waste concrete and waste sintered bricks recovered from a construction site as regenerated micro-powder raw materials, wherein the waste concrete and the waste sintered bricks being processed separately; (2) creating an isolation area: selecting a construction area, erecting an isolation plate to seal the construction area, and installing a dust removal facility to create a construction environment; (3) performing primary crushing: performing primary crushing on the regenerated micro-powder raw material through a universal crusher; and (4) screening: screening the crushed regenerated micro-powder raw material to separate small fragments with the diameter of less than 40 mm, and taking powder with the diameter of less than 0.16 mm as initial regenerated micro-powder. The regenerated micro-powder can be collected to the maximum extent, the regenerated micro-powder is prevented from diffusing in air to form haze to pollute the atmosphere, and recycling is achieved; and the regenerated micro powder can be activated through the exciting agent and can be prepared into regenerated micro powder concrete and set cement, so the building waste is effectively and comprehensively utilized, and environmental hazards are relieved.
Owner:JINHUA VOCATIONAL TECH COLLEGE
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