65results about How to "Realize the purpose of resource utilization" patented technology

The invention discloses a method for recycling heavy metal pollution wastes, which comprises the following steps of: 1) the pulping of raw materials; 2) acid leaching, namely, adding pulp obtained in the step 1 into a dilute sulphuric acid for filtration, and taking filter residues as the raw materials of bricks or cement; 3) copper displacement, namely, displacing copper out of filtrate in the step 2 with iron; 4) the preparation of ferrum-chrome-alum, namely, adding alkaline substances and an oxidant into the filtrate obtained in the step 3, adjusting a PH value, and precipitating and filter-pressing the mixed solution to obtain the ferrum-chrome-alum; and 5) the preparation of sponge cadmium, namely, displacing cadmium out of the filtrate obtained in the step 4 with zinc. The process has the advantages of suitability for the treatment of waste residues and waste liquor in a plurality of industries of electroplating, surface treatment, heavy metal smelting, chemical engineering and the like, no need of heating liquid-phase materials, the realization of closed cycle, and the capacity of extracting a plurality of valuable metals, such as Cu, Cr, Cd, Ni, Co, Zn and the like, directly taking the wastes obtained after the metal separation as the raw materials of the bricks or cement, and saving coal and electricity amounting to 20,000 T standard coal and 40,000-ton water per year for enterprises recycling 5,000-ton metals per year.

The invention relates to a farmland nitrogen and phosphorous non-point source pollution control and recycle system, and a method thereof. The system comprises a water collector, an adsorption unit and a water store which are sequentially arranged from the upstream to the downstream according to farmland surface runoff and underground runoff paths. The water collector, the adsorption unit and the water store are sequentially transversely arranged according to the farmland surface runoff and underground runoff paths, so when rain falls or irrigation is carried out, the farmland water is surplus, meets in the water collector through the farmland surface runoff and underground runoff, the water in the collector continuously downward flows and goes through the adsorption unit, nitrogen (N) and phosphorous (P) are adsorbed, the purified farmland drainage enters the water store, and the superfluous purified drainage is discharged to a river and a lake; and when farmland recharging is carried out, the water which reversely flows goes through the adsorption unit for the N and P desorption, and the desorbed N and P enter the water collector with the water flow, afresh enter the farmland and are adsorbed and utilized by crops. Compared with the prior art, the method has the advantages of pollution control, recycle, fertilizing cost saving and the like.

The invention relates to a method for realizing biogas slurry reutilization by recycling biogas slurry. The method is characterized by comprising the following steps: enabling extracted waste liquor subjected to or not subjected to solid-liquid separation to enter an anaerobic biogas fermentation tank for biogas fermentation, conducting micro-oxygenation, decolorization, solid acid treatment and other processes on the biogas slurry, recycling and using the processed biogas slurry as water for mixing when the processed biogas slurry meets the requirements of process water, conducting liquefaction, saccharification, fermentation, extraction and other regular production processes on the processed biogas slurry, obtaining fermentation products, and enabling the extracted waste liquor to enter the next recirculation. According to the method, the following advantages can be achieved: the biogas slurry can be recycled all the time, not only can the waste water pollution in the traditional fermentation product process can be obviated, but also the biogas slurry reutilization can be realized, a large amount of valuable water resources can be saved, aerobic process is abandoned, and the production cost is lowered.

The invention discloses a treatment method of heavy metals in desulfurization waste water, and belongs to the technical field of waste water treatment. A combination method of chemical precipitation and physical adsorption treatment is adopted to remove the heavy metals in the desulfurization waste water. The chemical precipitation method uses a ferrite precipitation method that a process condition is controlled by adding ferric and ferrous salts into desulfurization slurry, so that various metal ions such as Cd, Pb, Hg, Cu, Zn, Cr and Ni in the waste water form an insoluble composite ferrite; after aging for a period of time, a solid-liquid separation means is used to achieve the object of removing the heavy metal ions; a natural adsorbent is used for adsorbing the residual heavy metals in the desulfurization waste water, therefore the discharge standard of the heavy metal ions in the desulfurization waste water is achieved. The method has the advantages of simple process, good sediment stability, high removal efficiency of heavy metals and good environmental benefits, and effectively solves the secondary pollution problem of heavy metals.

The invention discloses a method for treating household garbage, which comprises a pre-treating step, a plastic product treating step, a sand treating step and a combustible material treating step, wherein, according to the method, the household garbage is divided into five kinds of material, namely ferromagnetic material, plastic products, sands, light combustible material and kitchen waste; the five kinds of material are used for manufacturing wood-plastic boards, bricks and generating electricity by gasification and the like, respectively; the method disclosed by the invention has the advantages of simple operation, strong practicability, high automatic degree, safe and controllable use; a circular fluidized bed with relatively high gasification efficiency is used for light combustible material and kitchen waste treatment; the circular utilization degree of the household garbage such as gasified mixing gas treatment and the like except dioxin is increased; secondary pollution is avoided; and the method can be widely suitable for household garbage treatment of all scales.

New method and application of innocent energylization treatment for urban house garbage. Separate the house garbage, break up; add lime, binding agent and burning-rate accelerator, finally, form, solidify and dry; the product can be used to low-calorie fuels for cement manufacture. This invention needs low cost, simple to operate and provides new resource and application for building material.

The invention relates to a method and device for removing SO2 in flue gas with copper extracting tailings and recycling the copper extracting tailings, and belongs to the technical field of environmental protection. Ferrous metasilicate (Fe2SiO4), magnesium ferrite (MgFe2O4), hedenbergite (CaFeSi2O6) and other sulfur removal active substances in the copper extracting tailings are used for reacting with SO2 in the flue gas in an aqueous solution to generate sulfite, then sulfate is generated under the action of oxygen in the flue gas, the SO2-containing flue gas makes contact with copper extracting tailing slurry, SO2 is absorbed, and thus the flue gas is purified; by adding ammonium sulfide, ammonium bicarbonate and lime milk step by step, iron ions, zinc ions, copper ions, ammonium ions and other ions in the sulfur removal slurry can be resourcelized to be reused.

The invention discloses a method for making an organic fertilizer for Clivia miniata and relates to a method for making an organic fertilizer. The invention solves the technical problems that the conventional fertilizer which is composted by using manure of livestock and poultry and a common carbon source is weakly alkaline, is not suitable for the growth of the Clivia miniata, and is long in composting time. The method comprises the following steps of: 1, uniformly mixing fish scale or fishbone dust, leaves or straws, manure of livestock and poultry and soil, spraying a microbial fermentation inoculum, and regulating the moisture to obtain a material; 2, piling the material into a windrow, covering a plastic film on the surface layer of the windrow, and composting; and 3, drying and crushing to obtain the organic fertilizer for the Clivia miniata. By the method, the composting time is shortened from 15 months to 4 months; and the prepared organic fertilizer for the Clivia miniata is weakly acidic and meets requirement on the pH value of the soil for the growth of the Clivia miniata.

The invention discloses a method for preparing polyester textile waste-based activated carbon by using a bittern solution as a templating-chemical activating agent. According to the method, porous activated carbon is prepared by using polyester textile waste as a precursor of carbon and the bittern solution as the templating agent; magnesium chloride is contained in the bittern solution, the bittern solution and the polyester textile waste are mixed and pyrolyzed to form carbon-coated magnesium oxide, and after magnesium oxide particles are dissolved by hydrochloric acid, mesoporous structures with the sizes of 20-40 nanometers are formed on the surface of the carbon; meanwhile, the magnesium chloride has a chemical activating effect, a large number of microporous structures with the sizes of 1.2-1.8 nanometers are formed inside the activated carbon and on the surface of the activated carbon. The specific surface area of the activated carbon prepared by the method is 601-1398 m<2>/g. The preparation method has the advantages of low cost and high efficiency; as an adsorbent material, the obtained activated carbon is high in Cr(VI) adsorption rate and large in Cr(VI) adsorption capacity; the purpose of treating wastes by wastes is achieved while resource utilization of the polyester textile waste is achieved.

The invention discloses a glyphosate mother liquor resource utilization system, and relates to the environmental protection technical field of treating the three wastes of waste liquid, waste gas and solid waste. The system mainly comprises a mother liquor concentration system, a thermal oxidation reaction system, a residual heat recovery system, a flue gas environment-friendly treatment system, and a solid product recovery system. The mother liquor concentration system is respectively communicated with the thermal oxidation reaction system and the residual heat recovery system. The thermal oxidation reaction system is communicated with the residual heat recovery system and the solid product recovery system. The residual heat recovery system is communicated with the flue gas environment-friendly treatment system and the solid product recovery system. The flue gas environment-friendly treatment system is communicated with the solid product recovery system. With the system provided by the invention, chemical engineering waste liquid can be treated with an environment-friendly manner. The chemical engineering waste can be subjected to a thermal oxidation reaction, such that valuable chemical engineering products can be produced, and a purpose of resource utilization is achieved. Also, waste heat is fully utilized, such that energy can be saved.

The invention relates to a treatment method for converting urine to resources and energy. The method comprises the following steps that: urine is thrown into a photobioreactor with microalgae inoculated, the microalgae grow fast in the photobioreactor under the effect of the urine, and when the concentrations of the microalgae reach 0.5-50g/L, the microalgae are separated from the photobioreactor and are put into a biogas fermentor to be fermented for 3-45 days to generate biogas, biogas slurry and biogas residues, wherein the biogas is used as energy; the biogas slurry returns to the photobioreactor to be recycled; and the biogas residues are used as organic fertilizers or compound fertilizers. Compared with the prior art, the treatment method has the following advantages: the urine is adopted as the unique nutrient source of the whole system, the whole system can well operate without any other nutrient source, grow the microalgae continuously and stably generate the biogas and the organic fertilizers or compound fertilizers; the urine is taken locally without collection or transportation, does not need to be bought as the unique hand feed of the system and is totally free; and the system has simple structure and low cost and is easy to manufacture and install.

The invention discloses a method for preparing a soil conditioner from industrial solid waste. The method comprises the following steps: (1) crushing and neutralizing: adding 2-3% of quick lime into araw material phosphogypsum, and crushing and neutralizing to obtain modified phosphogypsum; (2) mixing and stirring: uniformly stirring the modified phosphogypsum, a white phosphorus fertilizer, phosphate tailings and organic matters according to a weight ratio of (40-50): (35-45): (5-15): (1-5) to obtain a granular soil conditioner; and (3) grinding: grinding the granular soil conditioner into powder to obtain the soil conditioner. The method is simple in preparation process and low in energy consumption; and the industrial solid waste is used as a raw material for preparing the soil conditioner, so the method has important significance in saving the cost, protecting the environment and creating a new circular economy mode for industrial farmers.

The invention discloses a chromium-containing solid waste and organic material synergistic pyrolysis harmless treatment device and method. The device comprises a pyrolysis chamber, a gasification chamber, a combustion chamber and the like. The dried chromium-containing solid waste and organic materials are crushed, mixed and granulated, particles enter the pyrolysis chamber to be pyrolyzed to generate reductive pyrolysis gas and pyrolysis solid, and hexavalent chromium in the chromium-containing solid waste is reduced into trivalent chromium through the pyrolysis gas. Carbon and the like in the pyrolysis solid are subjected to a gasification reaction with water vapor to be converted into synthetic gas, so that residues are reduced, reduced trivalent chromium is prevented from being oxidized again, subsequent chromium recycling is facilitated, and pyrolysis gas and the synthetic gas are finally introduced into the combustion chamber to be combusted to generate high-temperature flue gasto provide heat for the heating chamber. According to the chromium-containing solid waste and organic material synergistic pyrolysis harmless treatment device and method, solid residues are reduced while the chromium-containing solid waste is subjected to harmless treatment, generated gas is clean combustible gas, heat is provided for the system after sufficient combustion, the heat utilization efficiency is improved, and a feasible technical route is provided for harmless, reduction and recycling treatment of the chromium-containing solid waste.

The invention discloses a production method of a lotus root special fertilizer. The production method comprises the steps of organic fertilizer preparation, proportioning, pelleting and the like. As for the lotus root special fertilizer, according to the fertilizer requirement characteristic of lotus root growth, through compounding of an organic fertilizer and an inorganic fertilizer, the content proportion of nitrogen to phosphorus to potassium is reasonable, the lotus root special fertilizer contains organic matter and a medium quantity of or a trace of element fertilizers, nutrient elements needed by lotus root growth can be provided, meanwhile, the soil environment is improved, the content of the organic matter in soil is increased, the fertilizer utilization rate is increased, and accordingly the effect of increasing both production and income is achieved. After the lotus root special fertilizer is applied, the yield of lotus roots is increased by 20% or over, the production increasing effect is remarkable, and economic benefits are remarkable. In addition, the content of crude fibers of the lotus roots cultivated through the lotus root special fertilizer is low, the content of vitamin C and reducing sugar is high, and by applying the lotus root special fertilizer, a great effect of improving the quality of the lotus roots is achieved.

The invention discloses a production method of a special fertilizer for a banana. The production method comprises the following steps of the preparation of an organic fertilizer, proportioning, granulation and the like. The special fertilizer for the banana is reasonable in the content ratio of nitrogen, phosphorus and potassium according to the fertilizer requirement characteristic of the growth of the banana and through the compounding of the organic fertilizer and an inorganic fertilizer, further, contains an organic matter, and is a medium-trace-element fertilizer; nutrient elements needed by the growth of the banana can be provided; meanwhile, a soil environment is ameliorated; the content of a soil organic matter is improved, the utilization rate of a fertilizer is improved; thus, the effects of increasing a yield and increasing an income are achieved; by adopting the special fertilizer for the banana, which is provided by the invention, the yield of the banana is increased by 15 percent or above; the yield increasing effect is obvious; the economic benefit is obvious.

The invention discloses a production method of special fertilizer for sugarcane. The production method comprises steps of preparation of organic fertilizer, material blending, granulation and the like. According to the fertilizer requiring characteristics of sugarcane growth, by compounding organic fertilizer and inorganic fertilize, reasonably proportioning content of N, P and K and containing organic matter, secondary elements and trace elements, the special fertilizer for the sugarcane can provide nutrient elements required by sugarcane growth, improve soil environment and increase organic content of soil, the fertilizer utilization rate is increased, and both production and income are increased. Compared with conventional fertilizer application, after the special fertilizer for the sugarcane is applied to the sugarcane, the yield per mu is increased by 20% or higher, the sugar per mu is increased by 1% or higher, and the economic performance is improved obviously.

The invention discloses a waste emulsion resource utilization treatment system. The waste emulsion resource utilization treatment system comprises an emulsion collection tank, a filtering unit, a first acid storage tank, an oil separation device, an ultrafiltration device, a second acid storage tank, a demulsification tank, a DTRO unit, a floating oil collection tank, a rectification device, a concentrated liquid collection tank, an evaporation device and a biochemical treatment unit. The invention also discloses a waste emulsion resource utilization treatment process. A purpose of recycling mineral oil extracted from waste emulsion is achieved, and meanwhile, the waste liquid is stably treated to reach the standard.

The invention belongs to the technical field of environment protection, and particularly relates to an environment-friendly treatment method of domestic garbage. The method comprises the steps that sterilization and anti-corrosion operations are performed, and organic matter decomposition is inhibited; the domestic garbage is shorted and crushed; lime, bonding agents and combustion improvers are added; the materials are mixed; pressing forming or extrusion forming is performed; solidification is performed; formed and solidified block materials are stacked, and are naturally dried in the air; the block materials which are dried in the air are used as low calorie fuel, coal materials or pavement brick base materials for cement production, and are fed into a rotary kiln and a vertical kiln to be directly combusted. The method is used for solving the problems of secondary pollution in the domestic garbage treatment process and useful ingredient waste after the treatment.

The invention provides a method for treating and utilizing coal gasification wastewater. The method comprises: sequentially carrying out pretreatment on to-be-treated coal gasification wastewater, biochemical treatment, denitrification treatment, advanced treatment and microalgae purification treatment. The method provided by the invention is used for treating the coal gasification wastewater so as to greatly reduce the COD value and contents of total phenolics and total nitrogen in the wastewater, and the water quality index of the final effluent meets the requirements of GB8978-1996 integrated wastewater discharge primary standard.

The invention provides a new method for resource utilization of pineapple peels and electrolytic manganese anode slime. The method comprises the following basic steps: (1) adding manganese anode slime into a reactor, adding pineapple peels with a mass which is 0.18 to 0.30 time of the mass of manganese anode slime and concentrated sulfuric acid with a mass which is 1.8 to 2.5 times of the mass of manganese anode slime, and regulating liquid-to-solid ratio to 3:1 to 5:1; (2) performing reaction at 90 to 98 DEG C for 4 to 8 hours, wherein the leaching rate of manganese reaches more than 95 percent; (3) obtaining residues with lead content of 46 percent, which can be used as lead concentrate; (4) adding 0.4 to 1.0 g/L waste iron scrap in filtrate, adding activated carbon according to iron-to-carbon mass ratio of 2:1 to 4:1 and performing reaction for 30 to 180mins under an agitating condition at 30 to 98 DEG C, wherein selenium is deposited in a solid phase and the recovery rate of selenium reaches 95 percent; (5) performing filtration again and then returning back filtrate for producing electrolytic manganese. The method for resource utilization of pineapple peels and electrolytic manganese anode slime has the advantages that the pineapple peels are used as reducing agent, the wastes are turned into valuable things and the method has environmental and economic dual benefits.