263results about How to "Pollution realized" patented technology

The invention discloses a beta-FeOOH nanocrystal-loaded photocatalytic composite nanofiltration membrane and a preparation method thereof. The photocatalytic composite nanofiltration membrane is prepared by performing codeposition on dopamine and polyethyleneimine on a porous supporting membrane to form a crosslinking nanofiltration membrane with a separating surface layer first and then loading beta-FeOOH nanocrystals on the separating surface layer. The loaded beta-FeOOH nanocrystals can promote photocatalytic oxidation reaction in the presence of hydrogen peroxide to degrade organic pollutants in wastewater or attached to the surface of the composite membrane, so that not only is achievement of the completely-innocent treatment of pollutant-containing wastewater facilitated, but also the pollution of the membrane surface can be reduced to achieve self cleaning of the membrane surface, and thus the separating efficiency of the composite nanofiltration membrane is improved and the service life of the composite nanofiltration membrane is prolonged.

A process for preparing the spinning dope from the fibrous straw and stalk includes such steps as steam exploding, cyclic countercurrent extracting in water to remove the most of soluble hemicellulose, extracting lignin in the aqueous solution of alcohol, filtering to obtain the alcohol solution of lignin and coarse cellulose, grinding, removing short fibers, bleaching to obtain milk, mixing it with urea, reacting in inertial solvent to obtain cellulose aminoformate, and dissolving it in NaOH solution.

The invention discloses an L-shaped full-closed environment-friendly hot galvanizing production method. The method is characterized in that: acid washing step-by-step automatic operation is implemented by adopting a mechanical hydraulic transmission manner, namely an acid washing workpiece automatic conveying system horizontally or vertically lifts to automatically convey workpieces to be galvanized to specified anti-collision acid washing tanks for acid washing and dust removing treatment step by step according to the multi-tank acid washing technological requirements, and the whole acid washing process is sequentially, progressively and automatically finished according to the technological requirements. The L-shaped full-closed environment-friendly hot galvanizing production method is pollution-free, environment-friendly, low in energy consumption, mechanical and automatic, and has the characteristics of full closure and integration of reclamation and treatment; and by the method, acid washing automation is realized, the labor intensity is furthest lightened, the production efficiency is improved, and the problem of pollution is solved.

The invention discloses a soil-conditioning type fertilizer. The fertilizer is prepared from following raw materials in parts by weight: 32-36 of rapeseed cake, 22-24 of furfural residue, 20-24 of gypsum, 19-23 of lime, 4-6 of vermiculite, 3-5 of molybdenum tailings, 5-7 of dolomite, 9-11 of diatomite, 7-10 of anthracite, 4-5 of calcium ammonium nitrate, 2-3 of copper sulfate, 1-2 of zinc sulfate, 1-2 of ferrous sulfate, 1-3 of manganese sulfate, 3-6 of a humate, 12-13 of a soil conditioner and a proper amount of water. The rapeseed cake, the furfural residue, and other raw materials are adopted by the soil-conditioning type fertilizer. The raw materials are convenient to take, low in cost and rich in nutrition, and capable of improving the soil structure. The vermiculite has good cation exchange property and absorptivity, and is capable of conditioning the soil structure, enhancing air permeability and water retention of the soil, allowing the acid soil to change into neutral soil, and allowing slow release of the fertilizer in crop growth media. In addition, the vermiculite can provide self-containing K, Mg, Ca and Fe, and trace Mn, Cu, Zn, and other elements for crops. The furfural residue can effectively restore the soil, and overcome pollution of furfural residue solid waste to the environment in the soil restoration process. The furfural residue solid waste is utilized reasonably, thus achieving resource utilization of pollutants. The molybdenum tailings, the dolomite, the diatomite, the anthracite, and other raw materials are added for supplement, thus fully utilizing resources, reducing the production investment and reducing pollution caused by chemical fertilizers.

The invention relates to a method and device for measuring a particle size of nano particle jet minimum quantity lubrication grinding droplets. The uniformity of a droplet spectrum, the deposition efficiency and an effective fluid utilization rate can be improved, the movement rule of the droplets is effectively controlled, and environmental pollution is reduced. The device comprises an adjustable nano fluid circuit and an adjustable gas supply circuit, wherein the two circuits are connected with a nozzle; the gas and grinding fluid are mixed in the nozzle to eject grinding fluid droplets into a grinding area on a workpiece; the grinding fluid droplets are scanned by adopting two confocal microscopes, wherein one confocal microscope is positioned in the direction perpendicular to the surface of the workpiece and moves along the xy direction, and the other confocal microscope is positioned in the direction parallel to the surface of the workpiece and moves along the xz direction; the side view and vertical view of the same single droplet which drops on the surface of the workpiece are acquired respectively, the scanned image is processed by a computer, the distribution rule of the single droplets is obtained, and the contour shape of the droplets is simulated, so that the particle size of the single grinding fluid droplet is determined.

A smokeless combustion device with fire stack in furnace consists of destructive distillation gasification combustion chamber, the second combustion chamber, top fire grate, bottom fire grate, fire stack in furnace, firepot, heated surface and fender. The extensive fuel materials such as raw coal, bulk coal, section coal, wood, straw and agricultural wastes can be used as fuel material of said device.

The invention discloses a fire-retardant coating with photo-catalytic performance and a preparation method thereof, belonging to the field of fire-retardant coatings. The coating comprises a base material, a catalyst, a charring agent, a foaming agent, a filler, a pigment, a solvent, a dispersant, a drier, a drying aid, a nano mother solution and the like, wherein the base material is aluminum dihydrogen phosphate, the catalyst is ammonium polyphosphate, the charring agent is pentaerythritol, the foaming agent is melamine, the filler is ultra-fine slag powder, the pigment is Cu-La/TiO2, the solvent is water, the dispersant is a BYK180 polymeric dispersant, the drier is lead oxide, the drying aid is zinc powder, and the nano mother solution is a nano SiO2 mother solution. The fire-retardant coating disclosed by the invention reduces the environment pollution to the maximum extent by using industrial waste residues as the filler; meanwhile, the coating has a function of realizing photocatalytic degradation of formaldehyde gas under a visible light source to endow conventional fire-retardant coatings with a brand-new function, and the fire-retardant coating accords with the development trend of national green ecological building materials.

The invention discloses a steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system and process and belongs to the technical fields of environmental protection and wastewater treatment. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system disclosed by the invention comprises a mud acid stirring and dissolving device, a lead and zinc removal device, a flocculating agent preparation device, a hydrogen sulfide absorption device and a lead and zinc precipitation separation device, wherein the mud acid stirring and dissolving device is connected with the lead and zinc removal device through a pipeline; and the lead and zinc removal device is connected with the flocculating agent preparation device, the hydrogen sulfide absorption device and the lead and zinc precipitation separation device through pipelines. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal process disclosed by the invention comprises the following steps: stirring and dissolving mud acids, removing lead and zinc, preparing polyferric flocculants, purifying hydrogen sulfide tail gas and performing lead and zinc precipitation separation. According to the invention, steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal can be realized, the elements such as zinc and lead can be effectively removed, and industrial products with high additive values are prepared.

The invention relates to a preparation method of a reed-based biochar adsorption material. The preparation method is technically characterized by comprising the following steps of cleaning the reed stalk, drying and crushing; soaking the crushed reed stalk into a KOH (potassium hydroxide) solution to activate, and drying; putting the dried crushed reed stalk into an atmosphere furnace, and performing oxygen-free high-temperature cracking under the nitrogen or inert gas protection atmosphere; after high-temperature cracking treatment, cooling to room temperature, and cleaning the cracked material to be neutral by an acid solution, so as to prepare the reed-based biochar adsorption material. The preparation method has the advantages that the problems of pollution to environment and waste ofresources due to irresponsible disposal of the wetland plant wastes are solved; compared with the prior art, the specific surface area is large, the pollutant adsorption ability is strong, the environment-friendly value is greatly increased, and the resource utilization of the wastes is realized.

The invention relates to an individualized biomimetic dental implant and a manufacture method thereof. The invention is characterized in that the dental implant comprises an implant body for imitating the original tooth root tissue structure of a patient's missing tooth and also comprises a biomimetic artificial alveolar bone structure outer-layer for imitating a patient's alveolar bone tissue structure. The biomimetic artificial alveolar bone structure outer-layer and the external surface of the implant body are combined as a whole. The biomimetic tooth root implant body's outer layer is a 3D printed biomimetic artificial alveolar bone structure outer-layer which is combined with the implant body to form a whole structure, and is similar to the tissue structures of missing tooth's original tooth root and alveolar bone. Thus, the invention provides an ideal implementation scheme of a biomimetic artificial tooth root structure. What is the most important is that the invention provides a structure which is beneficial to bone marrow stem cell and osteogenesis-related cell adhesion, proliferation and mineralization and gives play to final osteogenic function and has good bioactivity. Therefore, a microenvironment for promoting osteogenesis is created, osteocyte generation is induced, and early rapid and firm synosteosis is realized.

The invention relates to the technical field of the water-retention fertilizer-conservation cultivation for the drought-resistant forestation of the agriculture and forestry, and concretely relates to a bentonite and fungal dreg compounded water-retention fertilizer-conservation cultivation matrix and its preparation method. The matrix comprises 30-40 parts of bentonite, 60-70 parts of fungal dreg and 0.1-0.5 parts of a composite fertilizer. The preparation method of the matrix comprises the following steps: selecting new waste fungal bags after the edible fungus plantation, carrying out bag removal treatment, crushing, and adding a composite microbial agent and urea to guarantee the C:N ratio of 20; fully and uniformly mixing the above raw materials, adjusting the water content to 60%, composting the fungal dreg, and storing the obtained compost in a ventilation and rain exposing prevention device for the decrease of the water content to 20%; and uniformly mixing the fungal dreg with bentonite and the composite fertilizer, and crushing to prepare the water-retention fertilizer-conservation cultivation matrix. The matrix has the advantages of abundant sources and low costs of raw materials, wide distribution and low cost of a bentonite mineral resource, large output and easy obtaining of the waste fungal dreg, simple making method, and no pollution to the environment.

The invention relates to a hemp fiber manufacturing production line, in particular to a processing system for processing hemp into hemp fiber. The processing system for processing the hemp into the hemp fiber comprises devices for arranging hemp, degumming, dividing fiber and water washing, rinsing and softening, drying, softening and oiling, permeating and health maintaining, crush cutting and teasing, and combing and arranging; a degumming device comprises a mechanical degumming device, a biological degumming device and a high-temperature scouring-bleaching degumming device, and the device is special; a yarn hanging rack is composed of a hollow post and a plurality of hollow beams in a connecting mode, the hollow beams are provided with a plurality of hanging rods, and a plurality of holes are formed in the sides of the hanging rods; the crush cutting and teasing use a drafting roller set and a snapping roller set, and the drafting roller set and snapping roller set run in differential speeds and pressurize simultaneously. The combing and arranging use a round comb and a top comb to comb and a pulling vehicle to pull, along the rotating direction, the density of gill bars is increased gradually, and the fineness is reduced gradually. The processing system for processing the hemp into the hemp fiber changes a traditional hemp processing device, improves the long hemp yield and facilitates subsequent processing, and the produced hemp fiber is stable in quality.

The invention discloses a sewage purification treatment device of a municipal sewage pipeline net. The sewage purification treatment device comprises a settling basin and a crushing tank, wherein blow down branches are arranged at the top of the crushing tank; a first motor and a second motor are arranged on the left side wall of the crushing tank; rotating rods which penetrate through the crushing tank are arranged on the right sides of the first motor and the second motor; the rotating rods are both provided with crushing hammers; a sludge collecting tank is arranged at the bottom of the outlet of a sludge collecting tube; an air inlet tube is connected with the left side of an aerator; an air outlet tube is arranged at the top of a biodegradation tank; a first feeding hole is formed in the right side of the air outlet tube; the bottom of the biodegradation tank is connected with a sludge tube; a sewage pump is arranged on the right side of a sewage backflow tank; the sewage pump is communicated with the biodegradation tank; a sterilization tank is connected with the right side of the biodegradation tank through a connecting pipeline; a second feeding hole is formed in the top of the sterilization tank; a clean water tube is arranged at the bottom of the sterilization tank. The sewage purification treatment device is simple in structure, high in working efficiency, short in construction period and low in sewage treatment cost.

The invention provides a small-sized mobile grain stock drying warehouse, which consists of ventilation drying warehouse and hot air stove, wherein the ventilation drying warehouse and hot air stove are set on the same chassis; the indexable conveyor is set in the bottom outlet of ventilation drying warehouse; the grain lifter is set on one side of ventilation drying warehouse, which circulates the grain between outlet and inlet of ventilation drying warehouse; the base of hot air stove contains straw burning furnace; the heat-exchanger is set on the top of hot air stove, whose hot air outlet connects the ventilation drying warehouse through hot air pipe. The invention can dry the grain timely to improve the quality of grain and adapts the straw as fuel to reduce the coal consumption, whose ash is fertilizer for field directly.

The invention relates to an individual biomimetic dental implant and a making method thereof, and the individual biomimetic dental implant includes an implant body imitating an original teeth root tissue structure of a missing tooth of a patient, a bionic artificial alveolar bone structure outer layer which is bonded with the outer surface of the implant body into one body, and biological protein molecule-bone morphogenetic protein (BMP) which is attached to the bionic artificial alveolar bone structure outer layer. The implant body and the bionic artificial alveolar bone structure outer layer are overall 3D-printed, and are similar to the original teeth root tissue structure and the alveolar bone tissue structure of the missing tooth of the patient, and the BMP-modified biological protein molecule promoting rapid bone formation is added, so that an ideal bionic artificial teeth root tissue structure is provided. The most important is to provide a good biological activity structure which is conducive to bone marrow stem cell and bone formation-related cell adhesion, proliferation and mineralization to finally play the osteogenic function, a bone formation promotion microenvironment is created, bone cell formation is induced, and early rapid and strong bone combination can be realized.

The invention discloses a high arsenicum gold ore roasting smoke gas treatment system and a method for recovering arsenicum and desulfurating, which can be used for mainly solving the problems that the arsenicum resource in the high arsenicum gold ore roasting smoke is wasted, and the environment is polluted by a large amount of hazardous wastes containing the arsenicum generated in wet processing. The high arsenicum gold ore roasting smoke gas treatment system comprises an arsenicum recovery system which comprises a settling chamber, a primary cyclone dust collector, a secondary cyclone dust collector, an electric dust collector, a water jacket cooler, a water circulating pump, a water circulating pond and a cloth bag arsenic collector. The high arsenicum gold ore roasting smoke gas treatment system provided by the invention also comprises a desulfurization system; and the method for recovering the arsenicum provided by the invention comprises the following steps of roasting smoke and dedusting, smoke drying cooling and arsenicum collecting by a cloth bag. The desulfurating method comprises the steps of rushing and washing. The invention has the advantages of being stable in process, high in arsonium recovery rate, high in product purity, low in gypsum arsenicum content and less in environmental pollution.

Disclosed are a dry cleaning and waste heat recovery method and a system for a middle temperature section of converter gas, and belongs to the production field of ferrous metallurgy. The system comprises a dedusting and setting chamber, a high temperature reversing valve group, a low temperature three-way reversing valve group, a heat storage heat exchange device, a gas cleaning and recovery device, an inertia flue gas circulating line and a chimney. The method includes preliminary dedusting by the dedusting and setting chamber; heat exchange and coarse dedusting in a regenerator; reversing of gas and inertia flue gas in the regenerator; cleaning and recovery of gas, cleaning of inertia flue gas, and waste heat recovery; and direct waste heat recovery of gas. The dry cleaning and waste heat recovery method and the system in the middle temperature section of the converter gas have the advantages that defects of consumption of water and pollution problems caused by the existing converter gas cooling through water or steam spraying are overcome, the heat recovery efficiency is high, the problem of explosive problem in dedusting and temperature reducing of the converter gas processes is solved, the complete recycling of the converter gas is achieved, not only the pollution is reduced, but also using efficiency of energy is improved.

The present invention provides multistage antirust oil atomizing and spraying process for steel rolling production line to avoid surface corrosion and oxidation of steel, and features the integrated air atomizing, electrostatic atomizing, intelligent control, mechanical-electrical integration and relevant technology. The present invention may be used in antirust step after rolling, and has the features of intelligent control of oil film thickness, high efficiency, low power consumption, high antirust oil utilizing rate, less environmental pollution and improved work condition.

The invention discloses an automobile lubricating system cleaning apparatus and a cleaning method. The automobile lubricating system cleaning apparatus comprises a switch-over oil tube (1), a quick coupling (2), a first filter (3), an oil tank (4), a second filter (5), a cleaning oil fill port (6), a first solenoid valve (7), an electric pump (8), a first check valve (9), a second solenoid valve (11), a new oil fill connector (12), a second check valve (13), a gas source control valve (14), a pressure regulating filter (15), a gas source connector (16) and the like. The cleaning method comprises the steps of blowing the residual oil engine oil in a lubricating system out, carrying out cyclic cleaning, recovering the cleaning oil, blowing the residual cleaning oil in the lubricating system out and the like. With the automobile lubricating system cleaning apparatus and the cleaning method, the original lubricating oil can be prevented from remaining, the problem that cleaning is not thorough is solved, and meanwhile, it is realized that cleaning oil can be recycled.