213results about How to "To achieve the purpose of resource utilization" patented technology

The invention discloses a method for producing lightweight ceramic bricks by comprehensively utilizing solid wastes from ceramics factories and sludge produced in sewage treatment plants as the raw materials. The method comprises the steps of: subjecting waste residues from polishing, fragmentation treated waste polished tiles, waste blank powder and waste mud powder reclaimed from blank making, recovered dust from dedusters, drainage silt from ceramics factories, fragmented waste abrading blocks for polishing, waste glazes, coal sintering residuals, waste kaolin, waste high temperature sand, sludge, a water reducer and a reinforcing agent to ball milling, deironing through sieving, decaying and homogenization in a wet bowl mill, spray drying the slurry into particle powder, then pressing and sintering the particle powder into bricks. By comprehensively utilizing solid wastes from ceramics factories and sludge produced in sewage treatment plants, the method of the invention reaches the purpose of waste recycling and realizes the effect of zero emission of architectural ceramics and polished tile factories.

The present invention is paper-making effluent purifying treatment process including hydrolyzing acidification, anaerobic biological treatment, anoxia treatment, aerobic biological treatment and aerobic biofilter treatment mainly. The present invention has low treating cost, low power consumption, capacity of generating energy source with produced methane, high treating efficiency, high COD and SS eliminating rate, and other advantages.

The invention discloses a method for activating and regenerating waste industrial activated aluminum oxide. The method comprises pretreatment, cleaning liquid impregnation treatment and regeneration treatment; adopted cleaning liquid is selected from at least one of acid liquor and alkali liquor and surfactant solution; the regeneration treatment comprises regenerated liquid impregnation and calcination treatment, and adopted regenerated liquid is selected from aluminum-contained solution; the calcination treatment is performed under air atmosphere, and air inlet amount is 300 to 800 m<3>/(h.t). According to the method for activating and regenerating the waste industrial activated aluminum oxide provided by the invention, an original pore structure channel is dredged through a physical and chemical method, and a new pore structure is regenerated on the basis of the existing pore structure to obtain activated aluminum oxide with high specific surface area and high pore volume.

The invention discloses a modifying agent capable of passivating vegetable garden soil heavy metal and a preparation method and an applying method thereof. The modifying agent consists of organic material and potassium polyacrylate in a mass ratio of 7:(3-9):1; the organic material comprises the following components in parts by weight: 100-120 parts of gramineous crop straws, 10-12 parts of animal manure, 10-12 parts of potassium sulfate, 20-22 parts of lignite, 0.02-0.03 part of actinomycetes, 0.02-0.03 part of photosynthetic bacteria, 0.04-0.05 part of bacillus, 0.02-0.03 part of aspergillus and 0.06-0.07 part of cellulose decomposition bacteria; the potassium polyacrylate is separately packaged and is mixed with the organic material when applied; during a fermentation period, moisture is controlled at 50-60 percent, and the temperature is controlled at 60 DEG C-70 DEG C; and after the application of the modifying agent, the water-soluble state and full content of Pb, Cd, Cr and the like in soil and vegetables can be reduced greatly.

This invention discloses a method for using city sludge in combination composed of 1, a sludge drying unit, 2, a burning and processing unit, 3, a smoke process unit, 4, a turbine-generator set generation unit, 5, a waste gas collection and process unit, 6, a producing unit for construction materials, which mainly utilizes the steam exhaust generated by the steam turbine set and waste steam generated when drying sludge.

The invention discloses a method for improving sludge anaerobic fermentation and acid production, belonging to the environmental protection technical field. The method is taken as follows: the residual sludge of municipal sewage plants are used as the raw material, wall breaking action is applied to the microorganisms in the sludge by control of the operating parameters of ultrasonic in order to ensure most of the organic substances in the cells of the microorganisms to be dissolved, lye is added to the sludge to regulate the pH value of the sludge, and the sludge is transformed furthest from the solid phase to the liquid phase and made to produce volatile organic matter under the action of the lye and the microorganisms. The invention further improves the quantity of the organic acid produced from the sludge on the basis of sludge innoxiousness and resource utilization.

The invention discloses a method for preparing a mesoporous molecular sieve MCM-48. The method comprises the steps of extracting effective ingredients in coal ash as silicon sources by adopting a single template agent cetyl trimethyl ammonium bromide (CTAB); and synthetizing MCM-48 under alkaline medium by a hydrothermal method. The synthetized mesoporous material is regular in ducts, single in aperture distribution, high in order degree, and large in specific surface area. The method is simple and feasible in actual operation, economic and environment-friendly, and can provide a new path for 'recycling' utilization of the coal ash; and the synthetized sample has practical application value.

The invention discloses a ferro-manganese humic acid modified biochar, a preparation method thereof and an application of the biochar. Biomasses soaked by potassium permanganate solution are dried andpyrolyzed and then loaded with ferric oxide and humic acid to prepare the ferro-manganese humic acid modified biochar which can be used for removing cadmium and arsenic in polluted water and achieving in-situ remediation of cadmium and arsenic polluted soil.

The invention relates to a system and method for controlling excrement and urine of poultries and placentae of disease-caused dead poultries in a large-scale farm. The system comprises a source separated poultry house, a solid-liquid separation system, a liquid high-temperature aerobic fermentation system, a solid fermentation system, a stink-flue gas treatment system, a circulating water system and a detection control system, wherein the source separated poultry house is a poultry house in which rainwater and sewage are separated, drinking water and sewage are separated, and fence flushing water and the excrement and urine of the poultries are separated; the solid-liquid separation system comprises a excrement collecting pool, a sludge pump and a solid-liquid separation device; the liquid high-temperature aerobic fermentation system comprises a liquid thermal-insulation fermentation reactor; the stink-flue gas treatment system comprises a stink heat exchange condenser, a flue gas heat exchange condenser, a biological deodorization filter tower, an aeration fan, an air blower and an induced draft fan; and the detection control system comprises a material temperature sensor, a material level sensor, a pressure sensor, a water temperature sensor and a controller. According to the system, the harmless treatment, the reduction and the recycling are realized, the environment is protected, and the energy is saved.

The invention relates to a casing method of dredging sediment non-sintered ceramsites, comprising following steps: (1) crushing cement, quicklime, glass fibre powder, and fly ash by using a crusher; (2) mixing the pretreated cement, quicklime, glass fibre powder, and fly ash to make dry mixed casing material, weighing dredging sediment non-sintered ceramsites, wherein the mass ratio is : 10-20 parts of cement, 1-10 parts of quicklime, 1-10 parts of glass fiber powder, 1-10 parts of fly ash, and 50-70 parts of dredging sediment non-sintered ceramsites; (3) adopting a disc shot blasting machine for polishing casing; (4) maintaining for prepared non-sintered casing ceramsites. The casing method can consume a large amount of dredging sediment and meets the requirement for resource utilization of dredging industry, and largely promotes intensity of the dredging sediment non-sintered ceramsites, furthermore the production energy consumption is low, the non-sintered casing ceramsites have a wide application range and meet the requirements of construction markets.

The invention discloses a method for utilizing industrial wastes to produce microbial grease by means of fermentation and a special strain Rhodotorula glutinis Rh.g CGMCC No.2258. The method of the invention is a method for utilizing the industrial wastes (such as waste water of industrial production like starches, monosodium glutamate, paper making and so on, and/or fermentation industrial residues like soya residues and so on) as culture media to produce the microbial grease through fermentation of the Rhodotorula glutinis; the microbial grease obtained by the method also can be taken as material lipid to prepare biodiesel, and conversion rate can reach 80 to 99 percent. The production method of the microbial grease has the advantages of simple operation, low cost and high use value, and not only pollution of high concentration wastes which are discharged by fermentation industries like starches, monosodium glutamate, paper making, soya residues, etc. on the environment can be reduced but also the wastes can be converted into treasures by using the wastes to produce the grease which is a product in short supply in the current market, thereby the aim of resource utilization of the wastes is reached.

The invention relates to a lithium slag treatment method. The method comprises the following steps: leaching a lithium slag with a first sulfuric acid solution, performing filtering to obtain a leaching solution and an acid leaching slag, performing cooling crystallization on the leaching solution to obtain alum and a crystallization mother liquor, adding a lime milk into the crystallization mother liquor and stopping the addition of the lime milk until the pH value is 1-2, and performing filtering to obtain a first purified liquid and a first product. The treatment method of the lithium slagis simple, the lithium slag comprehensive utilization rate is high, and thus the treatment method is suitable for industrial applications. Specifically, by leaching with sulfuric acid, the leaching rates of lithium, rubidium, cesium, potassium, aluminum and sodium are all above 88%, the main components in the obtained acid leaching slag are quartz and gypsum, and the quartz and gypsum can be usedas concrete admixtures for the secondary utilization.

The invention relates to a method of preparing baking-free brick with a dredge sediment aggregate, which includes the steps of (1) sieving the dredge sediment aggregate; (2) smashing cement, quick lime, gypsum and fly ash in a pulverizer; (3) material blending: mixing and stirring the cement, the quick lime, the gypsum and the fly ash to obtain a dry-mixed material, weighing the dredge sediment aggregate, wherein the dry-mixed material comprises, by mass, 5-20 parts of the cement, 3-13 parts of the quick lime, 1-10 parts of the gypsum and 15-30 parts of the fly ash, and the dredge sediment aggregate accounts for 45-70 parts by weight; (4) adding water and stirring the mixture; (5) aging the mixture material; (6) press-moulding the mixture in a brick pressing machine; (7) performing product maintenance to obtain the baking-free brick. The method can consume the dredge sediment in a large quantity, thereby achieving resource recycling. The method can satisfy requirement in dredge industry and is low in production cost due to the baking-free process. The prepared baking-free brick is low in cost, is excellent in performances, can develop a utilization approach of recycling the dredge sediment resource, and satisfies the requirement of building material market.

The invention discloses a recycling treatment method of dye wastewater and belongs to the technical field of wastewater treatment. The method includes the steps of firstly, filtering; secondly, performing primary adsorption; thirdly, neutralizing; fourthly, performing secondary adsorption; fifthly, performing low-temperature catalytic oxidization; sixthly, performing concentration and evaporation;sixthly, performing biochemical treatment. The recycling treatment method has the advantages that residual dye in the wastewater and catalysts and salt in the wastewater can be recycled, wastewater recycling is achieved, a good wastewater treatment effect is achieved, and stable up-to-standard emission is achieved; meanwhile, the biochemical performance of the wastewater can be increased greatly,the stable operation of a follow-up biochemical system is guaranteed, and solid waste and secondary environment pollution are avoided completely.

The invention discloses a method and system for producing biogas through two-stage anaerobic processing of high-concentration waste, the processing method comprises the following steps: pretreating high-concentration livestock waste water in a pre-treatment pool; introducing the treated livestock waste water into a first stage anaerobic reactor, fermenting in a continuous stirred tank reactor to generate biogas; then introducing effluent into a secondary stage anaerobic reactor through an outlet pipe, completing water distributing, gas production and three-phase separating in an upflow anaerobic sludge blanket, purifying the generated biogas and then introducing biogas into production for usage; and introducing the processed effluent into a sedimentation basin for subsequent processing, and then discharging. The constructed two-stage anaerobic reactor can enforce the high efficiency anaerobic fermentation to high-concentration waste, thereby renewable energy biogas is generated, and effective processing of livestock and poultry waste water is realized simultaneously, and the selected material has the advantages of reliable quality, low cost and obvious energy effect.

The invention discloses a standard discharge treatment system for livestock and poultry waste water and a method thereof, the method comprises the following steps: pretreating livestock and poultry waste water with high concentration in a pre-treatment pool; introducing the treated livestock and poultry waste water in a first stage anaerobic reactor, continuously stirring in the reactor, then fermenting to obtain biogas; reacting and introducing in a secondary anaerobic reactor through an outlet pipe, completing water distribution, performing gas production and three-phase separation in an upflow anaerobic sludge blanket; introducing the processed effluent in a first stage biochemical treatment system for processing, performing solid-liquid separation; and then introducing a supernatant in a secondary biochemical treatment system for processing. According to the invention, two stage anaerobic reactors and two stage biochemical treatment systems are combined for performing high efficiency anaerobic fermentation and aerobic operation treatment on the livestock and poultry waste water, so that renewable energy biogas is generated, and treatment for livestock and poultry waste water standard discharge can be simultaneously realized, and the materials have the advantages of reliable quality, low cost, obvious energy effect, energy saving and environmental protection.

The present invention discloses a laundry sewage recovery and reutilization process. It is characterized by that said process adopts inorganic ceramic membrane separation technique and dynamic cross-flowing filtration mode to implement heat energy recovery, sewage recovery and detergent recovery so as to make the laundry sewage be changed into useful resource.

The invention relates to a method for producing acetic acid by fermenting kitchen waste. The method comprises the following steps: firstly adding high-activity dry yeast in crushed kitchen waste, and uniformly mixing, wherein the adding amount of the high-activity dry yeast accounts for 2-5wt% of the weight of the kitchen waste; performing anaerobic fermenting at 20-30 DEG C for 72-96 hours, and then adding calcium carbonate, wherein the adding mount of the calcium carbonate ensures that the pH value is kept at 5.5-6.5 in the fermentation process; then adding acetic bacteria, wherein the adding amount of the acetic bacteria accounts for 8-12wt% of the weight of the kitchen weight; performing aerobic fermenting at 30-37 DEG C for 72-96 hours; then performing the solid-liquor separation to obtain the kitchen waste fermenting liquor and kitchen waste residue, sending kitchen waste residue to refuse landfill, backfilling the kitchen waste residue to refuse landfill and distilling, refluxing and purifying the kitchen waste fermenting liquor so as to obtain the acetic. Each liter of kitchen waste fermenting liquid is capable of producing 24-28g of acetic acid, the acetic acid accounts for 84-93% of the total mass of the organic acid in the fermenting liquor, the heteroacid variety in the fermenting liquor is less, the production cost is low and the aim of re-utilizing the kitchen waste is realized.

The invention discloses a method and a device for microwave pyrolysis of sludge. The device for microwave pyrolysis of sludge comprises a microwave reaction device, a vapor recovery device and an oil gas recovery device in communication. The microwave reaction device comprises a microwave reaction cavity, and a first microwave generator arranged in a microwave reaction cavity enables the microwave reaction cavity to have a plurality of temperature areas in sequential temperature rise in the direction from an inlet of the microwave reaction cavity to an outlet. Microwaves serve as a heat source to substitute for a traditional heating method for microwave pyrolysis of sludge, water, pyrolysis gas and pyrolysis residues are obtained sectionally by means of sectional heating and condensation, and heat energy in a condensation process is completely used as a heat source for sludge drying, so that energy saving, environment friendly and sludge recycling are realized.