98results about How to "Full utilization of resources" patented technology

The invention relates to a coal-fired power plant coal dust prepared activated coke flue gas comprehensive purification system and a technology. The technology provided by the invention comprises the following steps of: using coal dust in a coal-fired power plant as a raw material, simultaneously carrying out carbonization and activation on coal dust in an activated coke preparation reactor to obtain powdered activated coke, using pyrolysis gas obtained during the preparation process as reburning fuel and sending it into a boiler so as to remove part of NOx; sending the powdered activated coke into a flue gas adsorption tower, adsorbing pollutants such as sulfur dioxide, mercury and the like at an appropriate temperature, injecting ammonia gas and nitrogen oxide to perform a catalytic reduction reaction so as to remove nitrogen oxide; reusing the adsorbed activated coke after regeneration; sending the activated coke into the boiler for combustion after multiple adsorption/regeneration; regenerating the activated coke after adsorbing sulfur dioxide to obtain high-density sulfur dioxide gas to realize resource utilization. By the utilization of coal resources in a coal-fired power plant, the comprehensive purification of flue gas and the resource utilization of sulfur dioxide are realized without discharge of waste water, exhaust gas and solid waste.

The invention discloses a resource utilization method of Fenton iron sludge. The method comprises the following steps of: (1) treating Fenton; adding the rest of ferrum into concentrated sulfuric acid; and controlling the temperature to be between 70 and 75 DEG C to stir for 30 minutes; (2) adding excessive quantities of scrap iron chips into an iron sludge solution obtained in the step (1) to reduce; detecting Fe3<+> by using a phenol solution until Fe<3+> is totally reduced into Fe<2+>; and (3) after the reduction is finished, standing for precipitating for 30 minutes; extracting supernate; adding ethanol according to the proportion that V(supernate)/V(ethanol) is equal to 10 to 1 and shortening the crystallizing time of ferrous sulfate; and after the crystallization is finished, obtaining an industrial FeSO4.7H2O finished product. According to the method, the bottle neck problem of Fenton technology promotion can be solved, the resource utilization of solid wastes is realized, and Fenton iron sludge is turned from waste into treasure, so that sustainable development of human society is facilitated.

The invention discloses baked bricks of riverslakes sludge and municipal sludge and a production method thereof. The baked brick comprises a brick body and a cavity, and the brick body is prepared bythe following raw materials in weight percent: 40-70% of riverslakes sludge, 10-35% of municipal sludge and 13-30% of internal fuel. The production method comprises the following steps of collecting raw materials, batching, blending internal fuel, extruding, molding, drying, roasting and obtaining the products. The baked bricks in the invention have the advantages of energy conservation, heat preservation, superior performance and low cost, and can be widely used in wall body construction in building industry. The production method in the invention has advanced processing steps, economy, reasonability, high cost-performance ratio, and especially low energy consumption of the manufacturing process, thus conforming to the national requirements of environment protection and energy conservation and enabling riverslakes sludge to be in full resource utilization.

The invention relates to a smoke gas desulfurization and recycling method; the smoke gas is processed in an smoke desulfurization and recycling integrated device; the smoke gas desulfurization and recycling technology has three stages: a first stage is an exhaust gas dedusting technology, by which particulate matter in the smoke gas is removed; a second stage is an exhaust gas desulfuration technology, by which SO<2>/SO<3> is removed; a third stage is a post-processing technology, by which the exhaust gas is dried and purified and manufactured into a product; and waste seriflux is made into gypsum after being oxidized; the smoke gas desulfurization and recycling method and the device of the invention are suitable for processing the smoke gas containing the SO<2>/SO<3> produced in various industrial production processes and recycling a material, thereby taking full advantage of a resource, decreasing pollutant emission and having the advantages of high processing efficiency, high coefficient of recovery, wide adaptability and smaller investment.

The invention discloses a comprehensive utilization method for pomelo peels, relating to a resource treatment method for agricultural product wastes. The method comprises the steps of separating a pomelo peel into a yellow outer peel and a white inner peel; drying the white inner peel; grinding the yellow outer peel, heating, and collecting fractions to obtain the mixed liquid of essential oil and water; performing extraction and rotary steaming to obtain pomelo-peel essential oil; mixing the yellow outer peel after collecting the fractions with ethanol, refluxing until yellow peel pigments are completely removed, and drying the remaining yellow outer peel; mixing the dried yellow outer peel and the dried white inner peel, and grinding to obtain mixed powder; adding an ethanol aqueous solution into the mixed powder; stirring in an oil bath, performing suction filtration, and washing; adding deionized water, and adjusting the pH value to 1-2; stirring in the oil bath, and performing suction filtration; concentrating the obtained pectin extraction liquid; adding ethanol to separate out pectin to obtain a pectin product; drying the residue after the suction filtration, and grinding; fetching the residue powder; adding the deionized water, and washing to neutrality; performing suction filtration; drying the solid to obtain a residue adsorbent.

The invention discloses a hydraulic separator and a construction waste material resource utilization system. The hydraulic separator comprises a water tank, a mesh screen, a plurality of gates and a plurality of color sensors, wherein the mesh screen is placed in the water tank and is used for supporting construction waste materials; a plurality of gates are distributed on the bottom of the mesh screen; the plurality of color sensors are distributed in the mesh screen; a horizontal water flow and a vertical water flow are provided for the water tank for separating brick blocks, concrete blocks, and brick and concrete integrated blocks layer by layer. The construction waste material resource utilization system comprises a manual sorting area, a hydraulic separator, a crusher and a dust remover; construction waste material treatment processes in the prior art are simplified; the concrete blocks, the brick blocks, metals, wood blocks and the like in the construction waste materials are effectively separated, and various raw materials in the construction waste materials are fully and reasonably utilized.

The invention relates to the field of energy, in particular to a method for producing biogas by taking Entermorpha as a material. The method comprises the following steps: (1) the Entermorpha is rinsed by water; (2) the Entermorpha obtained in step(1) is crushed until the grain size of the Entermorpha is between 0.5 and 2mm; (3) the Entermorpha obtained in step(2) is placed into a fermentation device and added with inoculum, and the weight ratio of the inoculum TS(total solid content) to the Entermorpha TS(total solid content) is between 1 to1 and 1 to 5; (4) the fermentation device is added with fresh water, and the total solid content in the fermentation device is adjusted to between 2.5 and 10 percent; (5) alkali is added into the fermentation device, and the initial pH value of the mixture obtained in step(4) is controlled to between 6.5 and 7.5; and (6) the fermentation device is sealed and placed in the thermostatic water bath, and the fermentation temperature is controlled to between 32 and 38 DEG C. The method has the advantages of realizing the resource utilization of the Entermorpha, having simple process and easy operation, improving the marine environment and producing the energy product of biogas.

The invention relates to a resource utilization method of waste residues generated by 1-nitroanthraquinone production by a solvent method, which comprises the steps that: the waste residues are added with water and are crushed, sulphite or hydrosulphite is added for taking reaction for 2 to 5 hours at 96 to 105 DEG C, the mass ratio of the waste residues to the water is 1/3 to 10, the mass ratio of the waste residues to the sulphite (or the hydrosulphite) is 1/0.3 to 0.7, the temperature reduction and the filtration are carried out after the reaction completion, filter cake is washed by hot water, beta-bit nitroanthraquinone isomers are removed, the filter cake is dried to obtain mixed nitroanthraquinone (mixed nitro, for short), the dried mixed nitro and solvents are heated to 90 to 160 DEG C, the ratio of the mass to the solvent volume of the mixed nitro is 1kg/7 to 15L, the heat is preserved for about 1 hour, the mixed materials are filtered in the hot state, the filter cake is a component B, methanol is used for washing away the solvents, the drying is carried out, the main ingredients of the component B are 1,5-dinitroanthraquinone, 1,8-dinitroanthraquinone and anthraquinone, the filter liquid solvents are added with water again, after the solvents are recovered by a water vapor distillation method, a component A is filtered out, and the main ingredient of the component A is 1-nitroanthraquinone.

The invention discloses a method for separating and recovering valuable metal iron, manganese and scandium from tungsten slag. The method includes the steps that the tungsten slag is leached with sulfuric acid; valuable metals such as the iron, the manganese and the scandium exist in a leaching solution as Fe<3+>, Mn<2+> and Sc<3+> correspondingly; the Fe<3+>, the Mn<2+> and the Sc<3+> are simultaneously extracted by a P204+ sulfonated kerosene organic phase, the extraction rates are 97%, 95% and 99% correspondingly, and then the manganese, the iron and the scandium in a loaded organic phase are separated and recovered by selective reverse extraction in sequence by using different reverse extraction agents. According to the method, the process is simple, the recovery rate of the valuable metals is high, and the defects such as big acid mist and bad environment in the process of hydrochloric acid leaching are overcome.

The invention relates to the field of waste treatment, and discloses a sodium chloride and sodium sulfate mixed waste salt resource reutilization method which comprises the steps of co-treatment, dissolution treatment, nanofiltration membrane filtration, evaporative crystallization and the like. According to the method, the sodium sulfate body can be recycled, and organic matters contained in the waste salt can be fully utilized to burn to produce heat to supply energy to the cement kiln so that the aim of full resource utilization is fulfilled; according to the invention, the use amount of water in the process can be reduced, the energy consumption in the evaporative crystallization process is reduced, and the treatment cost is saved; according to the method, the organic matters in the waste salt are decomposed by fully utilizing heat generated by the cement kiln, then volatile organic matters generated by the decomposed organic matters are mixed with air along with flue gas and then enter the cement kiln to be fully combusted, heat is provided for the cement kiln, combustion is complete, harmless emission is achieved, and the purpose of green treatment is achieved.

The invention discloses garden planting soil prepared from construction waste. The garden planting soil comprises, by volume, 40 to 60% of a mixture obtained after separation of construction waste, 30to 50% of clay and 10% of humus soil. According to the invention, the garden planting soil is prepared from the mixture obtained after separation of construction waste, clay and humus soil; the prepared garden planting soil has a good physical structure; the humus soil is rich in elements needed by the growth of plants, and addition of construction waste improves the penetrability and permeability of the soil; and the prepared garden planting soil has stable and long-lasting soil properties and can provide a good soil growth environment for the growth and development of plants and promote plant growth. According to the invention, the mixture obtained after separation of construction waste is used as a main component of the garden planting soil, so an effective approach is provided for effective utilization of construction waste and on-site treatment of construction waste, garden planting soil is saved, and sustainable development of resources is realized. The invention also disclosesapplication of the garden planting soil.

The invention discloses a method and a device for comprehensively processing pig manure in a large-scale pig farm. The method for comprehensively processing pig dung in the large-scale pig farm comprises the following steps: S1, the pig dung in pig houses is collected by a mechanical dung scraping facility, and is transported into a dung collecting tank; S2, the pig dung in the dung collecting tank is added into a fermentation tower by a screw conveyor, undergoes anaerobic dry fermentation to produce biogas, and then undergoes aerobic composting; S3, the biogas generated in the anaerobic dryfermentation process is introduced into and stored in a gas storage cabinet, odorous gas generated during the aerobic composting is introduced into a biological filter and is processed, the above produced organic fertilizer is transported to a curing workshop and is cured, and generated biogas slurry and leachate enter an anaerobic fermentation reactor by a pump, and are used to produce biogas; and S4, the biogas obtained in step S2 and step S3 is purified, and then used, the produced organic fertilizer is returned to the field, and the generated biogas slurry is used for irrigating crops after being discharged into an oxidation pond and processed. The method and the device have the advantage of good processing effect, simple process conditions, no secondary pollution and high economic benefits.

The invention relates to a pretreatment method for hydrolysis transformation of wheat straws. The method comprises soaking wheat straws in water, adding hydrogen peroxide, sodium hydroxide and distilled water into the wheat straws, carrying out stewing, carrying out extrusion through an extruder, carrying out two-stage grinding disintegrating treatment, carrying out screening, carrying out enzymatic hydrolysis, adding an enzyme solution into the enzymatic hydrolysis product under aseptic conditions, and carrying out enzymatic hydrolysis at a constant temperature to obtain a hydrolysate of wheat straws. The method fully utilizes existing devices in the pulping industry, reduces additional investment, greatly saves an economic cost, has a great significance to the recycling of the existing paper making industry and is conducive to the sustainable development of the pulping and paper making industry.

The invention provides a desulfurized ash reduction-oxidation two-stage treatment method. The desulfurized ash reduction-oxidation two-stage treatment method comprises the following steps: feeding desulfurized ash into a first-stage high-temperature reactor, controlling proper temperature and atmosphere, reducing calcium sulfite and calcium sulfate in the desulfurized ash into calcium sulfide, feeding the calcium sulfide into a second-stage high-temperature reactor, controlling proper temperature and atmosphere, converting the calcium sulfide into sulfur dioxide and calcium oxide, and generating sulfur-containing flue gas and residues. According to the method, the desulfurized ash is converted into SO2-rich flue gas and calcium and iron-containing residues; sulfuric acid can be prepared from the SO2-rich flue gas through dust removal, purification, catalytic oxidation and absorption processes, the residues can be added into iron ore according to a certain proportion to be sintered to replace part of iron-containing raw materials and flux or be used for steelmaking desulfurization, the desulfurized ash is fully recycled, and economic benefits and environmental benefits are remarkable.

The invention provides a process for directly preparing trisodium phosphate from glyphosate mother liquid in order to effectively recover phosphorus resources from the mother liquid for producing trisodium phosphate. The process is characterized by comprising the following steps: oxidizing the glyphosate mother liquid through catalytic air, oxidizing organic phosphine in the mother liquid into orthophosphate ions, adding sodium hydroxide or sodium carbonate into the mother liquid to adjust the pH value to be 9-10, cooling to be -5 DEG C to 8 DEG C while stirring, crystallizing, separating, washing, and drying to obtain trisodium phosphate. The process is simple and easy for industrialization applications, the obtained trisodium phosphate is wide in application range, difficulty in enabling the glyphosate mother liquid subjected to terminal treatment to reach the emission standard is lowered, and treated solid waste is reduced.

The invention discloses a red mud unfired aggregate, which comprises the following raw materials by mass: 50-80 parts of red mud, 5-30 parts of a reaction auxiliary agent, 3-10 parts of a reinforcing agent, 2-4 parts of an additive, and 10-23 parts of an alkali inhibitor, the reaction auxiliary agent comprises gypsum powder and at least one of mineral powder and steel slag powder, and the reinforcing agent comprises one or two of silica fume and quartz powder; the alkali inhibitor comprises one or two of fly ash and kaolin. Silicon, aluminum and the like with relatively high activity are introduced by utilizing the mineral powder and the steel slag powder, so that the compressive strength of the red mud unfired aggregate is improved. Calcium sulfate and other substances are introduced through gypsum, structures such as ettringite and the like can be generated under the alkaline condition, free calcium is absorbed, gaps of the aggregate are filled, and the water absorption rate of the aggregate is reduced.

The invention discloses a quartz sand tailings treatment and resource utilization process, and belongs to the technical field of quartz sand tailings production. The quartz sand tailings treatment andresource utilization process solves the problem that existing quartz sand tailings serve as pollutants to be discharged, and cannot be effectively used. The process comprises the following steps of firstly, quartz sand tailings purification; secondly, quartz sand tailings primary grading; thirdly, quartz sand tailings magnetic separation; fourthly, quartz sand tailings water removal; fifthly, quartz sand tailings drying; sixthly, quartz sand tailings secondary grading; seventhly, quartz sand tailings resource utilization. The process is suitable for quartz sand tailings treatment and resourceutilization.