264results about How to "To achieve the purpose of turning waste into treasure" patented technology

Disclosed is a dust removal and zinc extraction method. Raw materials are mixed and evenly stirred through a loader according to weight proportion, 30 percent to 40 percent of blast furnace dust removal ashes, 25 percent to 35 percent of power plant dust removal ashes, 25 percent to 35 percent of blast furnace gas slime, 5 percent to 10 percent of anthracite coal are evenly delivered to a rotary kiln to be heated for refining through a conveyor, then are delivered into a dedusting chamber to experience the atomization and separation, the raw materials are delivered into a cooling pond then and zinc oxide powder is forcedly sent into a dust collecting chamber by a suction blower, the dust is collected through a bag and is supplied to a zinc supply smeltery as the raw material. The iron residues separated in the heating and extracting process in the rotary kiln are magnetically separated through a magnet separator, the iron residues with the iron content of 60 percent are delivered to an iron smelting plant, and the residue soil is supplied to a cement plant as the raw material. The invention has the advantages that the iron residues and zinc powder are extracted and separated through adopting the processed waste material dust removal ashes in large-scale smelting enterprises, the purpose of changing wastes into valuables is realized, and the resource utilization rate is enhanced.

The invention relates to a refining process for lepidolite in tantalum-niobium ore waste rocks. A combined method with magnetic separation, high gradient magnetic separation, dense medium separation and flotation is adopted. The flotation adopts the process of rough flotation, dual fine flotations and sweeping. The process for refining the lepidolite from the granite-type tantalum-niobium ore waste rocks is provided. The tantalum-niobium ore waste rocks are crushed, screened, ground and subjected to high-frequency screening, spiral grading, permanent magnet magnetic separation for iron removal, high gradient magnetic separation, dense medium separation and flotation, so that lepidolite concentrates are obtained. By means of the method, the lepidolite concentrates are separated from the tantalum-niobium ore waste rocks. The lepidolite concentrates contain at least 4.5% of Li2O, at least 8.0% of K2O and Na2O and at most 0.10% of TiO2 and Fe2O3, the recovery rate of the lepidolite concentrates is larger than 80%, the qualities of the lepidolite concentrates meet the requirement of national standards, and the recovery rate of the lepidolite concentrates exceeds the industry level.

The invention relates to the technical field of sludge pyrolysis, in particular to a sludge pyrolysis method adopting biomass adding. The method comprises steps as follows: step one, firstly, biomass is crushed into powder, the biomass, sludge and a catalyst are uniformly mixed in a mass ratio being (0.25-4):1:(0.02-0.08), and a mixture is obtained; step two, the mixture is put in a reaction kettle, nitrogen is introduced to serve as protective gas, the temperature is increased to the pyrolysis temperature of 300-700 DEG C according to a certain temperature increasing procedure, and a solid-phase product, a liquid-phase product and a gas-phase product are obtained respectively. The sludge pyrolysis method adopting biomass adding not only promotes sludge pyrolysis, but also increases the product utilization value, the problem of environment pollution in the conventional sludge treatment process is solved, the reduction, stabilization, harmless and recycling targets of sludge are achieved, agricultural waste biomass is recycled, and the purpose of turning waste into wealth is achieved.

The invention discloses a method for treating heavy-metal-containing wastewater by an external electric field reinforced micro-electrolysis technology, and belongs to the fields of water treatment technologies and recycling. In the method, the heavy-metal-containing wastewater is pretreated or not pretreated and then introduced into an external electric field reinforced micro-electrolysis reactor to be treated, a micro-electrolysis filler is filled in the reactor and is put in an external electric field with certain intensity, and micro-electrolysis reaction is promoted and reinforced through the reinforcing effect of the external electric field, so that metal ions in the wastewater are reduced into metal simple substances on the surface of the filler, and effluent can meet the requirement of the wastewater emission standard or can be directly recycled in the production process. The method has the advantages of high reaction speed, removal rate, recycling efficiency and environment compatibility and the like.

The invention discloses a bacillus subtilis H8-3 and application thereof in preparation of a decomposed inoculant. The bacillus subtilis H8-3 is deposited with the CCTCC at Oct 21, 2013 in Hubei Wuhan university and is assigned the accession number CCTCC No:M 2013483. The bacillus subtilis H8-3 is high-temperature-resistant, can survive at 30-60 DEG C, is high in protease activity and is quick in growth. The decomposed inoculants prepared from the bacillus subtilis H8-3 is high-temperature-resistant and can secrete protease and lipase for high-efficiently fermenting animal wastes. Compost prepared through the decomposed inoculant is less in environmental pollution, is economical and is easy to use. When a product after compost treatment is subjected to subsequent treatment, the product can be employed as an organic fertilizer for achieving an object of turning waste into resources.

The present invention discloses a method which can prepare a phosphate (borate) melamine salt flame retardant by a dry process. According to the molar ratio of 1:2 to 4, small molecular polyol and inorganic acid containing phosphor or boron are uniformly mixed with lewis acid catalyst with one to one point five percent of the weight of the small molecular polyol, the temperature of the produced solution is raised to 100 to 150 DEG C, reaction lasts two to five hours, after melamine with the molar ratio of 1:1.5 to 2.5 of inorganic acid containing phosphor or boron is added, the produced solid is smashed into fine powder which can pass through a sieve with one hundred and twenty meshes, under a reaction temperature between 180 DEG C and 230 DEG C, reaction lasts one point five to four hours, and after the generated product is washed until the filtrate is neutral, the phosphate (borate) melamine salt flame retardant is produced by filtration, drying and smash. Because the dry process is applied, the present invention avoids the problem that the organic solvents used by the prior art harm environment and erode equipment, reduces energy consumption and production cost and avoids the problem of the hydrolysis of phosphate, which is caused by a reaction under the water phase; moreover, the present invention has the advantages of simple technique and convenient operation and is suitable for industrialized production.

The invention discloses coal gasification slag all-component pervious concrete. Ground coal gasification slag is taken as a silicon-aluminum raw material to prepare a coal gasification slag geopolymerwith good mechanical properties as a cementing material; and screened coal gasification slag is used as aggregate to prepare the pervious concrete which have adaptive mechanical properties and waterpermeability and has good wear resistance and water purification performance. The aggregate and the silicon-aluminum raw material used in the invention are both the coal gasification slag, so that theindustrial solid waste coal gasification slag is fully utilized, and the purpose of resource utilization is achieved. Meanwhile, the coal gasification slag contains a certain amount of activated carbon, so that the adsorption performance of the pervious concrete can be improved, and the pervious concrete which has adaptive mechanical properties and water permeability and has good wear resistanceand water purification performance is obtained.

An active sludge carbon is prepared from the active sludge obtained by treating sewage through treating it at 200-700 deg.C. It has high properties of the active carbon, so it can be used as filler of plastic products.

The invention discloses a method for producing a sweet potato juice fermented beverage, comprising the following steps of: taking a fresh sweet potato juice generated in the process of producing sweet potato starch or vermicelli, and heating at a temperature of 100 DEG C for 5-10 min; after cooling to below 40 DEG C, mixing a bacteria solution after adding bread yeast and lactobacillus planetarium on a proportion of 2-20%; fermenting at the temperature of 25-35 DEG C for 18-48 hours; filtering, adding white sugar in a filter liquor and mixing uniformly; homogenizing through a high homogenizer; and sterilizing at the temperature of 85 DEG C for 30 min, thereby obtaining the sweet potato juice fermented beverage. The production method provided by the invention has the advantages of simple technology, high utilization rate of sweet potatoes, excellent market prospect and capabilities of achieving the purpose of turning waste into wealth and improving high added value and high benefit of the sweet potatoes.

The invention discloses a silicon micropowder reinforced polyethylene material and a preparation method thereof. The silicon micropowder reinforced polyethylene material contains the following ingredients in parts by weight: 40-98 parts of polyethylene, 1-50 parts of silicon micropowder, 0.1-5 parts of surface modifier and 0.1-5 parts of dispersant. According to the method, the silicon micropowder is mixed with polyethylene after the silicon micropowder is subjected to surface modification, the dispersant is added during mixing, and melt-extrusion granulation is carried out under the condition that the screw revolution rate and extrusion temperature of an extruder are set, so that a silicon micropowder modified polyethylene master batch with excellent performance is obtained. According to the silicon micropowder reinforced polyethylene material and the preparation method thereof, the disadvantages that the tensile strength and impact resistance of polyethylene are poor and the like can be effectively solved, the creep resistance and heat resistance of a polyethylene material are improved, and the comprehensive performance of a silicon micropowder modified polyethylene composite material is excellent, so that continuous production can be carried out.

The invention relates to a method for treating naphthoquinone production liquid waste containing hexavalent chromium and vitamin K3 production wastewater and co-producing chromium oxide green. The method comprises the following steps: a) carrying out liquid phase reaction between the naphthoquinone production liquid waste and the vitamin K3 production wastewater at 80-260 DEG C, wherein the naphthoquinone production liquid waste is excessively used relative to a necessary dosage of complete reduction; b) adding a reducing agent into the obtained reaction mixture to reduce the residual hexavalent chromium; c) regulating the pH of the obtained reaction mixture to 5.5-8.5 to separate out chromium hydroxide, and separating to obtain the chromium hydroxide and filtrate; and d) transforming the chromium hydroxide obtained in the step c) into chromium oxide green. The method can be used for effectively treating the naphthoquinone production liquid waste and the vitamin K3 production wastewater generated in a vitamin K3 production chain and recycling effective components in the liquid waste to turn waste into wealth and improve the economic and environmental protection benefits at the same time.

The invention provides a plant source animal use immunopotentiator developed by taking cordyceps militaris fungus as a fermentation fungus for fermenting traditional Chinese medicine astragalus. The immunopotentiator belongs to the field of animal health product. The traditional Chinese medicine astragalus and decoction dreg thereof are taken as raw materials where cordyceps militaris is inoculated. The content of cordyceps militaris is more than or equal to 15.7*106pcs/gram. The temperature in the fermentation process is maintained at 25 to 30 DEG C, and the fermentation time is 264 hours. After sterilization, the fermentation product is directly used to feed poultry or pigs and serves as an animal immunopotentiator. The plant source animal use immunopotentiator, which is a pollution-free plant source animal use immunopotentiator, has the advantages of wide raw material source range, low production cost, good immunoenhancement effect, no environmental pollution during production, fermentation product safe for human beings and livestock, and remarkable effect.

The invention belongs to the field of agriculture, and particularly relates to the field of plant cultivation, in particular to a solanaceous vegetable culture medium and a preparation method of the solanaceous vegetable culture medium. The preparation method for using fermentation bed waste packing for making the solanaceous vegetable culture medium and the obtained culture medium can fill in the blank in application of the fermentation bed waste packing to the solanaceous vegetable culture medium in the prior art. The culture medium comprises the fermentation bed waste packing, vermiculite, perlite and peat. Accordingly, the fermentation bed waste packing is recycled, and waste is turned into wealth.

The invention discloses a fish and vegetable symbiotic system and application thereof. The fish and vegetable symbiotic system includes a water inlet, a water storage tank, at least one filter tank, avegetable planting pipeline, a drainage port, a waste liquid treating tank and a fish framing water tank which are all connected in sequence; the fish framing water tank is lower than the position ofthe waste liquid treating tank. By adopting the fish and vegetable symbiotic system, firstly, vegetables are planted in the vegetable planting pipeline, and fish are farmed in the fish framing watertank; then, water in the fish framing water tank is transported into the water storage tank, and after being filtered by the filter tanks, the water is transported to the vegetable planting pipeline;finally, the water is transported to the waste liquid treating tank, and after being treated, the water is transported back to the fish framing water tank. In this way, water current circulation is formed, the eutrophic water can be converted into water suitable for survival of aquatic organisms, meanwhile, nutrient substances in the eutrophic water are used as plant fertilizer, therefore, waste of water resources is reduced, and the cost can be reduced.

The long-acting composite plant fertilizer consists of green material including foxtail-like sophora herb, alfalfa, plant ash, plant oil residue and adhesive and based on the production of farmyard manure. Its production includes the processes of drying, crushing, sieving, mixing, extrusion, pelletizing, and stoving. Field experiment shows that it has obvious yield increasing effect on rice, wheat, corn, melons and fruits and can reduce plant diseases and insect pests effectively.

The invention relates to a method for preparing lithium-contained potassium sodium feldspar powder in tantalum-niobium ore waste rocks. A combined process with magnetic separation, high gradient magnetic separation, hydraulic cyclone and magnetic fluid separation is adopted. The tantalum-niobium ore waste rocks are crushed, screened, ground and subjected to high-frequency screening, spiral grading, permanent magnet magnetic separation for iron removal, high gradient magnetic separation, hydraulic cyclone and magnetic fluid separation, so that potassium sodium feldspar concentrates containing a certain amount of lithium are obtained. By means of the method, the lithium-contained potassium sodium feldspar concentrates with a high content of potassium oxide and sodium oxide, a trace content of lithium oxide and a low content of iron oxide, titanium oxide and manganese oxide are separated from the tantalum-niobium ore waste rocks. According to the lithium feldspar concentrates, Li2O accounts for 0.8-1.2%; the K2O and the Na2O altogether account for 7.5-9.0%; the TiO2 and the Fe2O3 altogether account for 0.1% or less; the SiO2 accounts for 66.0-71.0%; the Al2O3 accounts for 15.0-17.0%; the MnO2 accounts for 0.1% or less; the recovery rate of the lithium-contained potassium sodium feldspar concentrates is larger than 95%, and the qualities of the lithium-contained potassium sodium feldspar concentrates meet the requirement of industry standards.