1253results about How to "Zero pollution" patented technology

The invention discloses a method for preparing graphene aerogel and graphene/ metallic oxide aerogel. The method is characterized in that graphite oxide aqueous solution serves as a raw material, alcohol serves as a cross-linking agent, a precursor solution is obtained through the simple mixing and dispersing processes, the hydrothermal method is adopted, the freeze drying method or a supercritical drying method is adopted, and then the graphene aerogel is obtained . The graphene/ metallic oxide aerogel can be prepared by adding metallic oxide into the polymeric precursor solution. On one hand, the graphene vinyl aerogel material has the characteristic of the graphene aerogel, and on the other hand, the graphene vinyl aerogel material can have the physicochemical characteristic of the metallic oxide. In addition, the aerogel material has a large specific surface and good electrical conductivity, can directly serve as a supercapacitor electrode, and has large specific capacity, good rate capability and cycling stability. The materials used in the method are low in cost, the industrial process is simple, and the method is friendly to the environment.

The invention discloses a straw component separation and straw component full utilization method, and relates to the technical field of straw comprehensive utilization. According to the method, straws are subjected to a steam explosion treatment, such that hemicellulose is first separated; and the rest of the material after hemicellulose extraction is subjected to steam explosion treatment again, such that the separation of cellulose and lignin is realized. The method has the advantages of simple process, environment-friendliness, low cost, and thorough separation of hemicellulose, cellulose and lignin. With the method provided by the invention, an environment-friendly separation technology of cellulose and lignin is realized for the first time internationally, and a basis is provided for full-element, high-added-value and comprehensive utilization of straws. On the basis, products with higher added values can be derived or generated. With the production process provided by the invention, all wastewater is treated and is completely recycled, and all waste residue is used for producing organic fertilizers, such that straws are thoroughly utilized, and straw component full utilization is realized. Also, zero emission and zero pollution are realized, such that the difficulty of straw comprehensive utilization is solved.

The invention relates to an air incorporation power machine motor car, which comprises a steering-wheel, a front aperture axle bracket, a rear axle stand, a girder for connecting the front aperture axle bracket and the rear axle stand and a vehicle body. The motor car further comprises a hub, an energy recovery device, an energy storage device, a power drive device, a control device, a shift device and an auxiliary device which are connected to the front aperture axle bracket and the rear axle stand through transmission shafts. The energy recovery device is connected with the energy storage device; the energy storage device is connected with the power drive device; and the control device controls the energy recovery device, the power drive device and the auxiliary device. When a motor vehicle is in normal running, an air power engine supplies power; and when the motor vehicle is needed to decelerate when conducting brake, turning and downhill, the hub and impellers are started to generate electricity and collect the power and use. The power recycled by the manner is rather considerable, so that the energy of the invention can be better made up. In sum, the invention utilizes air power as main power, and the power can be recycled and utilized through multi ways. In addition, the air source collection is convenient, the energy transformation rate is high and the exhaust emission is nearly zero, thereby achieving the aims of the invention.

The invention discloses an extended range type electric vehicle power system based on a fuel battery and a control method for the extended range type electric vehicle power system. The output end of a fuel battery system with a hydrogen pot is connected with an input of a direct current/direct current (DC/DC) transformer through a controllable relay S1; an output of the DC/DC transformer is connected with a lithium iron phosphate power battery pack; the lithium iron phosphate power battery pack is connected with the high voltage input end of a motor controller; the three-phase output end of the motor controller is connected with a driving motor; a whole vehicle controller VMS directly controls an electromagnetic valve for managing hydrogen output and the relay S1 through an input/output (I/O) port, and communicates with the fuel battery system, the DC/DC transformer, a battery management system and the motor controller through controller area network (CAN) buses so as to control a motor to drive the whole vehicle to run and manage the whole power system. The fuel battery system with the hydrogen pot is used as a vehicle-mounted charger for the lithium iron phosphate power battery pack; and a scheme of a vehicle-mounted range extender of an electric vehicle can be provided. The efficiency of the fuel battery system serving as the vehicle-mounted range extender is higher than that of an internal combustion engine; furthermore, the noise is low, and zero emission and zero pollution are realized.

The invention relates to a method for efficiently preparing cotton based mesoporous activated carbon fiber. The method comprises a step (1) of washing cotton, placing the cotton in a hydrothermal reaction kettle, performing heating to 150-200 DEG C at the heating rate of 5-30 DEG C/min, performing hydrothermal carbonization, performing heat preservation for 1-3 hours and then performing cooling to room temperature; a step (2) of dipping carbonization materials obtained from the step (1) into activator solution, performing microwave-ultrasonic joint dipping for 5-30 minutes and then performing filtration, sending filtration materials to a microwave heating device, performing activation for 5-15 minutes at 250-350 DEG C and then stopping microwave output, and a step (3) of washing the activated materials to be neutral and performing drying to obtain the activated carbon fiber. According to the method, the characteristics of microwave inner heating and selective heating are fully utilized, the technological process is simple, the activation temperature is only 250-350 DEG C, the activation time is only 5-15 minutes, the mesoporous proportion of the activated carbon fiber of the product reaches 50-90%, and the adsorptive property is good.

The invention belongs to the technical field of meat product detection, particularly discloses a manufacturing method of a label for indicating freshness of chilled fresh meat, and further relates to a detection method for freshness of the chilled fresh meat. The manufacturing method of the label comprises the following steps: dissolving natural biogel, adding an ammonium salt and a natural humectant to modify the solvent, then adding an indicator to the solvent to be uniformly mixed, and obtaining a membrane-like label; the detection method for the chilled fresh meat comprises the step of using the indicating label and a standard color card to be compared with the meat, so as to judge the freshness of the chilled fresh meat. According to the detection method disclosed by the invention, the freshness of the chilled fresh meat can be directly, conveniently and quickly identified by the indicating label, and other equipment and instruments are not required; the detection method is simple to operate, low in cost, quick and non-destructive, and great in economic significance for processing, circulation, sales, detection and the other links of the meat.

The invention relates to a multifunctional biological solid fermentation tank. The main body structure of the fermentation tank is a horizontal propeller, and spiral auger propeller blades are installed below the tank bottom. An auger is directly communicated with steam for sterilizing form the bottom of the tank and communicated with air for cooling, a spray tube on the upper part of the tank body sprays bacterial liquid for inoculation and can also spray water mist for humidity regulation, and thus, uniform inoculation and humidity control can be realized. The unique tank body horizontal type propeller and the auger coordination system below the tank body are utilized, and the circular flowing and the thorough mixing of a solid material in the tank body during fermentation are realized by controlling the rotating speed and the rotating direction; stirring nonuniformity caused by using a motor to rotate forwards or backwards repeatedly is avoided, automatic material discharge can be realized after fermentation, and material discharge is clean and complete. The operations of sterilization, cooling, inoculation, fermentation, temperature control, humidity control, ventilation, vacuum drying and the like required by solid fermentation can all be completed in the biological solid fermentation tank. The biological solid fermentation tank has the advantages of hardly no bacterial contamination, small occupied space, high automation degree, labor saving, investment saving and the like.

The invention relates to a circular agriculture system and an implementation method thereof. According to a characteristic that different biological wastes can be highly efficiently cycled by various insects and small animals, an insect breeding factory is constructed; and insect and small animal proteasome and insect feces residue organic fertilizer are respectively utilized as an animal factory protein feed and a plant factory organic fertilizer. Therefore, carious animal and plant products with high added values can be produced with high yields. With modern advanced agricultural technologies and equipment, stereo cultivation is usually carried out with rare species, such that a unit yield of the types of factories reaches more than a hundred times that of conventional agriculture. With the products from the three types of factories, a wide variety of series downstream industry chain group can be developed, such that best economic benefit can be ensured. The three types of factories, downstream industry chain spaces and farmer residential spaces can be arranged in a rise building. The buildings can form a highly clustered production, management, residence, agriculture, industry and business integral community. With farmland novel industry and landscape designs outside the buildings, a novel intensive town is formed.

The invention provides a porous heat-conducting asphalt concrete pavement heat exchange system, which comprises an asphalt concrete pavement heat exchange device (1) laid on a roadbed, wherein the device consists of a first close-graded asphalt concrete surface course (9), a porous heat-conducting asphalt concrete surface course (10) segmented by prefabricated dense partition boards (13), an emulsified asphalt concrete seal layer (14) and a second close-graded asphalt concrete surface course (11); the system is provided with silicone rubber water penetration preventing layers (12) which are distributed on the surfaces of the two close-graded asphalt concrete surface courses and penetrate the inside of the surface courses; and the asphalt concrete pavement heat exchange device (1), a heat reservoir (2), an auxiliary heat source (3) and a user heat exchanger (4) are connected through pipelines and a fan (6), so as to form a thermal circulation closed loop of the system. The system has the advantages of energy conservation, emission reduction, low operation and maintenance cost and the like, and can be used for collecting solar energy, maintaining pavement and heating/cooling buildings.

The invention discloses a process method for producing fluorine compounds and silicon compounds by cleanly utilizing fluosilicic acid. The process method comprises the following steps of: preparing fluosilicic acid as a phosphorus chemical by-product into an anhydrous aluminum fluoride product, a sodium fluoride product and a cryolite product, and combining with other industrial waste silicon slags and aluminum slags to prepare a 4A zeolite product. The process method comprehensively utilizes the fluosilicic acid and has high resource recovery rate, wherein the recovery rate of the fluorine element reaches higher than 90 percent. Waste silicon dioxide slags generated in the process can be recycled to produce white carbon black and the 4A zeolite, and a mother liquor, a cleaning solution and waste gas which are generated in the production process are all recycled, thereby the environmental pollution is reduced, and the purposes of zero emission and no pollution are truly achieved, thus the method completely meets the requirement for clean production. The invention has the advantages of advanced production process, good product quality and high value, wherein the fluorine content of the aluminum fluoride is high and between 63-65 percent; the quality index of the obtained white carbon black meets the requirement on the standard of the chemical industry; and the quality of the 4A zeolite product meets the requirements on the national standard and the standard of European and American developed countries.

The invention provides a recycling method for waste acid generated during the preparation of graphite oxide through the liquid-phase chemical method. The method comprises the steps of homogenizing the waste acid: pumping the waste acid into a homogenization tank by an acid-resistant pump to homogenize the waste acid; recycling sulfate: adding a precipitant in the homogenization tank according to the molar weight of sulfate ions in the waste acid, conducting the stirring reaction and recycling gypsum (CaSO4*2H2O); recycling manganese ions: adding an inorganic base to adjust the pH value so as to form a manganese hydroxide, then adding an oxidant to react with the manganese hydroxide so as to form a manganese oxide, recycling the manganese hydroxide/manganese oxide or the mixture of the manganese hydroxide and the manganese oxide; conducting the separation and purification operation; recycling chloride ions; and recycling the water. Conventional methods for preparing graphene are mainly divided into physical methods and chemical methods. The physical methods are composed of a micro-mechanical stripping method, a high-energy ball milling method and the like. The above methods are low in yield and are not suitable for large scale production. The method of the present invention is applied to the clean production of graphite oxide and the comprehensive utilization of waste acid resources.

The invention discloses a biomass charcoal-enveloped controlled-release fertilizer and a preparation method thereof. The fertilizer is prepared from the raw materials of, by weight: 20-30 parts of rice husk, 45-70 parts of a 3-6wt% sodium hydroxide solution, 10-15 parts of corn straw, 20-30 parts of urea, 15-25 parts of attapulgite, 10-15 parts of ammonium bicarbonate, 8-12 parts of potassium sulfate, 4-6 parts of trace elements, 15-25 parts of a calcium-magnesium-phosphorous fertilizer, 6-8 parts of a binding agent and a proper amount of water. Specifically, the enveloped controlled-release fertilizer is prepared with a rice husk and plant straw sealed charring technology and with the binding agent prepared from polyvinyl alcohol. As a result of tests, the biomass charcoal-enveloped controlled-release fertilizer has a significant controlled release effect. According to different plant requirements, the controlled-release speed can be adjusted by adjusting the proportion of the added enveloping agent. Most of the components in the enveloping agent is biomass charcoal, such that the pollution degree to the environment is almost zero. Also, a fertilizer dose is reduced, and fertilizer utilization rate is greatly improved.

The invention provides a preparation method of a lithium iron phosphate/expanded graphite composite electrode material and a preparation method of a lithium ion capacitor made of the material, and relates to a preparation method of a lithium ion capacitor anode material and a preparation method of a lithium ion capacitor. The preparation methods overcome defects that the safety performance is poor, the cost and environmental pollution are high, lithium iron phosphate cannot be composited with graphite or graphene effectively to utilize excellent electrochemical properties of the graphite or the graphene. The preparation method of the composite electrode material comprises the steps of dissolving a phosphorus source, an iron source and a lithium source in H2O to prepare a lithium iron phosphate precursor, expanding the expandable graphite in a muffle furnace, preparing a lithium iron phosphate/expanded graphite composite precursor through mechanical mixing and ultrasonic treatment of the lithium iron phosphate precursor and the expandable graphite, and carbonizing to obtain the composite electrode material. The preparation method of the lithium ion capacitor comprises the steps of preparing the composite electrode material into an electrode plate to serve as an anode, mixing activated carbon and the graphite to prepare an electrode plate to serve as a cathode, sandwiching a polypropylene membrane between the anode and the cathode, and injecting an inorganic lithium salt aqueous solution as an electrolyte. An in-situ sol-gel composite method increases the utilization ratio of an active substance of the lithium iron phosphate, reduces the internal resistance of the material, and is simple to operate.

The invention relates to pavement maintained by adopting cold regeneration technology, which comprises the following innovation that: the pavement from a milled basement to the surface is provided with a foamed asphalt cold regeneration layer, a modified asphalt hot mixed macadam stress absorbing layer and a single-layer modified asphalt concrete overlay in turn. Diseases caused by a semi-rigid base are prevented by changing a pavement structure, and the service life of a road is prolonged. The invention also relates to a construction process for the pavement maintained by adopting the cold regeneration technology, which mainly comprises the following steps: milling on-site pavement, adjusting gradation, preparing a foamed asphalt cold regeneration mixture, paving on-site, rolling, distributing the stress absorbing layer, and paving the single-layer modified asphalt concrete overlay. The pavement and the method adopt the foamed asphalt cold regeneration technology, thereby realizing recycling an asphalt surface course recycling material and a cement stabilized base recycling material, solving the pollution problem caused by a great amount of discarded pavement materials, saving resources, reducing economic investment, and having good economic benefit, social benefit, environmental benefit and promotion and application value.

The invention discloses a preparation method of redispersible waterborne pressure sensitive rubber latex. A mixed monomer is added in foundation latex at a constant speed for reacting by adopting a semicontinuous polymerization method to obtain the redispersible waterborne pressure sensitive rubber latex. According to the preparation method disclosed by the invention, the defects of traditional rubber latex are overcome; and in addition, the production process is quite reasonable in design, the production period is shortened and the production efficiency is improved. The pressure sensitive rubber latex has excellent pressure sensitive characteristic under the drying condition, is widely used for laminating and positioning crystallite glass products and the like and can be quickly dissolved, dispersed and cleared once the pressure sensitive rubber latex meets with water; and no trace is reserved on the products.

The invention discloses a technology method used for producing poly aluminium chloride and calcium aluminate. The technology method comprises following steps: 1, ash stir frying is carried out, and metal aluminum is recycled so as to obtain secondary aluminum ash; 2, the secondary aluminum ash is subjected to deamination processing so as to obtain a deaminated aluminum ash slurry; 3, the deaminated aluminum ash slurry is subjected to defluorination processing so as to obtain a defluorinated aluminum ash slurry; 4, the defluorinated aluminum ash slurry is filtered so as to obtain a filtrate anda filtration residue, wherein the filtrate is a poly aluminium chloride solution; and 5, the filtration residue is washed until the pH value is 7, is uniformly mixed with a calcium based auxiliary material, drying and high temperature reaction are carried out, after reaction, cooling, crushing, and grinding processing are carried out so as to obtain calcium aluminate. According to the technologymethod used for producing poly aluminium chloride and calcium aluminate, secondary aluminum ash is subjected to complete harmless processing, so that high efficiency resource utilization of secondaryaluminum ash is realized, and the produced products possess better economical benefit.

The invention provides a co-precipitation synthesis method for Na2/3Ni1/3Mn2/3O2 as an electrode material and a preparation method of a Na2/3Ni1/3Mn2/3O2 electrode. The co-precipitation synthesis method comprises the steps of (1) mixing a nickel source compound solution and a manganese source compound solution, then, violently stirring to prepare a mixed solution with the nickel-to-manganese molar ratio of (0.8-1.5):1, and meanwhile, adding a complexing agent to complex until the pH value of the solution is up to 7.5-8.5; (2) adding a precipitant for precipitating to obtain a precipitate, carrying out suction filtration on the obtained precipitate, washing and drying; (3) carrying out ball milling on the dried product and a sodium source compound with a stoichiometric ratio, and mixing for 3-10h; (4) placing the ball-milled mixture into a muffle furnace to pretreat and calcine at high temperature to obtain a final product, namely, Na2/3Ni1/3Mn2/3O2. Proved by an electrochemical test, the material provided by the invention has the specific discharge capacities of 195mAh/g (0.01C), 153mAh/g (0.05C), 84mAh/g (0.10C), 53mAh/g (0.20C) and 49mAh/g (0.50C) in a rate performance test. The co-precipitation synthesis method is wide in raw material source, easy to prepare, low in aqueous sodium ion electrolyte cost and friendly to environment.

The invention discloses a bamboo sprout chili sauce and a preparation method thereof. The bamboo sprout chili sauce is characterized by taking bamboo sprout, fresh chili, mushroom, fermented soya beans, mashed garlic, randia cochinchinensis, clove, soy sauce, brown sugar, edible salt and white spirit as active ingredients. The bamboo sprout chili sauce maintains the traditional flavor, is unique in taste, great in mouth feeling, and free from addition of preservative and catalyst, thus not only being capable of meeting the pursues of consumers on the fragrance, spiciness, sourness and cleaning flavor on the chili sauce, but also being capable of playing certain nutrition and health-care roles.

The invention provides a dry ice cleaning device and a cleaning method thereof. The device comprises an air compressed system and an injection system communicated with the air compressed system, wherein the air compressed system comprises an air compressor, a high-pressure gas pipeline and a low-pressure gas pipeline; the high-pressure gas pipeline and the low-pressure gas pipeline are respectively communicated with the air compressor and converge to the injection system through independently moving; a material division mechanism and a reducing valve are arranged on the low-pressure gas pipeline; the high-pressure gas pipeline adopts a venturi spray pipe; the air compressed system is communicated with a nozzle through the venturi spray pipe; and the outlet end of the material division mechanism is communicated with the tail end of the venturi spray pipe in the air compressed system and is connected with the injection system. According to the invention, water resources can be saved, the operating cost is reduced, and simultaneously, no cleaning agent residues exist; the exhaust gas of carbon dioxide is utilized, so that the emission of greenhouse gases is reduced; and the surface of a cleaned object cannot be damaged, and a low-temperature disinfection function is achieved. At the same time, in the invention, the dry ice cleaning device for industrial use is miniaturized so as to be applied to the field of family food sanitation.

The invention relates to a large-scale joint alkali-making circulation process. The process comprises the following steps: a. obtaining an alkali-making raw material by an infiltration alkali extraction method; b. obtaining hydrogen sulfide and methane by utilizing microbial resource in an alkali halide; c. evaporating and concentrating a thin alkali liquid by utilizing natural energy; d. obtaining various types of products by combining a natural alkaline method and a chemical combination method; e. obtaining subsidiary products by combing coal chemical industry deep processing and an alkali-making process; and f. obtaining series of products by combining an electrolytic process and a chemical combination method. The large-scale joint alkali-making circulation process has the beneficial effects that natural alkali waste resource and hidden resource are excavated for raw material supply, biological energy and natural energy are comprehensively utilized so as to realize energy utilization, potential of coal chemical industry deep processing is developed and an activated carbon purification technology is applied to low carbon economy so as to achieve the purposes of energy conservation and environmental friendliness so that technologies in various fields are tightly integrated with the alkali-making process, thus fundamentally realizing large-scale joint alkali-making circulation and greatly lowering the alkali-making cost.