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83results about How to "Realize waste utilization" patented technology

Composite combining silica thermal repairing material and preparation method thereof

The invention discloses a composite bonded silicious hot repair material, which belongs to the technical field of refractory materials. The repair material comprises the following compositions in percentage by weight: 45 to 55 percent of silicious clinker aggregate, 8 to 12 percent of silicious clinker powder, 20 to 30 percent of natural silica powder, 8 to 12 percent of complex binder, 3 to 5 percent of plasticizer, and 1 to 1.5 percent of dispersant. The silicious clinker aggregate and the silicious clinker powder are waste main crown silica bricks (SiO2 is more than or equal to 95 percent) and fused quartz tubes or fused quartz wedges (SiO2 is more than or equal to 98 percent), SiO2 is more than or equal to 96 percent in natural silica, the complex binder is formed by compounding an SiO2 ceramic bond and a phosphorous acid (phosphate) chemical bond, the plasticizer is white clay or bentonite, and the dispersant is silica fume. The repair material is processed according to the particle size. The invention can satisfy various conditions proposed by hot repair of a kiln to the repair material, can also realize the aims of saving energy sources and increasing the service life of the kiln, and can also be used for filling or building positions which are not suitable for silica brick masonry during the cold repair at the same time.
Owner:山西高科耐火材料股份有限公司

Multifunctional solid waste treatment device and solid waste treatment method thereof

The invention discloses a multifunctional solid waste treatment device. The multifunctional solid waste treatment device comprises a pyrolysis gasifier. The pyrolysis gasifier comprises a gasifier body and a smoke drying box. A combustible gas storage box is arranged on the top of the gasifier body and communicated with the bottom of the gasifier body. A combustible gas delivery pipe is arranged on the upper portion of the gasifier body and connected with a condensation device, and the condensation device is connected with the combustible gas storage box. A smoke internal delivery pipe is arranged on the lower portion of the gasifier body, the smoke drying box is connected with a waste heat boiler connected with a smoke washing system, and the waste heat boiler is connected with a sludge drying device. The smoke washing system is connected with a sewage pool and a chimney, and the condensation device is connected with the sewage pool. The sewage pool is connected with a tar-water separation system capable of separating tar and water. The invention further provides a solid waste treatment method. By means of the device and the method, solid waste can be completely treated, combustion is complete, smoke is exhausted after reaching the standard, and meanwhile sludge treatment capacity is achieved.
Owner:深鹏环保工程有限公司

Method for sintering chromite powder recycled based on ferronickel smelting furnace slag

The invention provides a method for sintering chromite powder recycled based on ferronickel smelting furnace slag. According to the method, the chromite powder is added with the ferronickel smelting furnace slag and then is granulated and sintered, so that the sintering temperature of the chromite can be reduced, the liquid phase amount is increased, the carbon proportion can be decreased, the yield and the strength of the sintered ore are improved, the difficult chromite powder sintering problem is solved, the energy consumption for the production is reduced simultaneously, an expensive solvent is unnecessary, and the obtained sintered product is a nickel-chromium-iron alloy which can be directly applied to the stainless steel production and does not increase a subsequent smelting slag discharge process of the stainless steel production. Compared with the chromite sintering process in the prior art, the method has the advantages that the coke proportion is low, the sintering temperature is low, the quality of the sintered ore is high, the ferronickel smelting furnace slag is effectively recycled and the production cost is low, the waste utilization in the nickel alloy production process is realized, the total cost of the stainless steel production is reduced, the economic benefit of enterprises is increased, and the energy conservation and emission reduction pressure of the enterprises is relieved.
Owner:CHONGQING UNIV

Method of resourcefully utilizing sludge containing manganese, aluminum, and iron in water treatment plant

The invention discloses a method of resourcefully utilizing sludge containing manganese, aluminum, and iron in a water treatment plant. The method comprises the following steps: taking sludge containing manganese, aluminum, and iron in a water treatment plant as the raw material; dehydrating the sludge at first to obtain dry sludge; then adding fly ash obtained in a power plant and sulfuric acid in sequence to carry out an acidifying treatment to obtain an acidified material; then adding kaolin, utilizing sodium silicate to adjust the silicon/aluminum ratio of the silicified material to 1:1, allowing the system to stand still to carry out reactions for 7 days, drying the sludge in the air or baking the sludge to obtain a dry material; heating the dry material to a temperature of 400 to 500 DEG C, burning the dry material for one hour, and naturally cooling the dry material to obtain a material with an adsorbing performance. The wastes are fully utilized. Sludge, fly ash, and cheap kaolin are used to prepare an adsorbent, and the wastes are utilized and converted into resources. The obtained adsorbing material has good adsorption activity, can absorb organic substances, phosphor, and heavy metal ions, and can be directly used in the wastewater/sewage treatment field.
Owner:HEFEI WATER SUPPLY GRP CO LTD +1

Method used for preparing ZSM-5 molecular sieve taking white mud as raw material, and ZSM-5 molecular sieve

The invention provides a method used for preparing ZSM-5 molecular sieve taking white mud as a raw material, and the ZSM-5 molecular sieve prepared via the method. The method comprises following steps: 1, white mud and an activator are subjected to calcining activation so as to obtain a clinker, wherein the activator is sodium hydroxide or anhydrous sodium carbonate; 2, deionized water and a template agent are added into the clinker, and uniform stirring is carried out so as to obtain a silicon-aluminium gel; and 3, the silicon-aluminium gel obtained in step 2 is delivered into a crystallization kettle for crystallization so as to obtain the ZSM-5 molecular sieve. According to the method, white mud is taken as a raw material to prepare the ZSM-5 molecular sieve, full utilization of effective silicon and aluminium in white mud to prepare the ZSM-5 molecular sieve is realized, waste utilization of white mud is realized, the preparation cost of the ZSM-5 molecular sieve is reduced, it is beneficial for improvement of economic benefit and market competitiveness, the preparation method is simple, the obtained ZSM-5 molecular sieve is low in production cost, is high in economic benefit and market competitiveness.
Owner:CHINA SHENHUA ENERGY CO LTD +1

Preparation method and application of natural plant dye solution of Phytolacca acinosa berries

InactiveCN102127309AIncrease the variety of dyeingRaise the gradeNatural dyesDyeing processChemistryWool
The invention provides a preparation method and application of a natural plant dye solution of Phytolacca acinosa berries. The preparation method comprises the following steps: cleaning Phytolacca acinosa berries, draining, and grinding to obtain Phytolacca acinosa berry pulp; adding water to the Phytolacca acinosa berry pulp (the weight ratio of the Phytolacca acinosa berry pulp to the water is 1:(3-6), immersing at normal temperature under sealed conditions for 1-2 hours, and leaching once or twice; and merging the leaching solutions, and filtering to obtain the natural plant dye solution of Phytolacca acinosa berries. The application method comprises the following steps: dyeing fabric by a chrome-free dyeing, pre-chrome dyeing, metachrome dyeing or after-chrome dyeing process, taking out the fabric, flushing with water and drying in the shade. The natural dye is extracted from the waste Phytolacca acinosa berries and used for dyeing the fabric, thereby recycling the waste Phytolacca acinosa berries, increasing the dyeing types of textiles and enhancing the grade of the textiles, and is especially suitable for dyeing silk fabric and wool fabric. The preparation method and dyeing technique of the natural plant dye solution are simple, and have very broad market prospects.
Owner:YANCHENG INST OF IND TECH +2

Application of radix rehmanniae leaf extract in preparation of blood glucose-reducing medicines

The invention relates to application of a radix rehmanniae leaf extract in preparation of blood glucose-reducing medicines and can effectively solve the problem of drug use for treatment of diabetics. The preparation method comprises the following steps: adding 10-12 times of water based on weight of radix rehmanniae leaves into the radix rehmanniae leaves to extract twice, 1-1.5 hours every time; combining extraction liquids twice; concentrating the extraction liquids at a reduced pressure to a concentration liquid containing 0.5-2 g/ml of crude drugs at 55 DEG C; adding 95% by mass of ethanol into the concentration liquid, wherein the alcohol concentration reaches 60-80%; leaving to stand for 24 hours; taking a supernate; concentrating the supernate at a reduced pressure to a concentration liquid containing1-4.5g/ml of crude drugs at 55 DEG C; then separating and purifying by using an H103 resin column; then, elutingwith 10-20% by mass of ethanol as an eluent; cololecting the eluant; concentrating the eluant at a reduced pressure; drying to obtain the extract. According to the invention, the raw materials are abundant, the preparation method is simple, easy to operate and stable and reliable, and the radix rehmanniae leaf extract in any quantity can be industrially produced. The radix rehmanniae leaf extract can be effectively utilized to prepare the blood glucose-reducing medicines, so that the radix rehmanniae leaves are comprehensively developed and wastes are utilized, and a novel path of preparing the blood glucose-reducing medicines is explored.
Owner:HENAN UNIV OF CHINESE MEDICINE

Low-energy-consumption sintering water seepage bricks and manufacturing method thereof

The invention belongs to the technical field of building materials, and specifically relates to water seepage bricks, in particular to a low-energy-consumption sintering water seepage brick using industrial waste residues as a main raw material and a manufacturing method of the low-energy-consumption sintering water seepage brick. The low-energy-consumption sintering water seepage brick comprises the following raw materials in parts by weight: 50-70 parts of blast furnace granulated slags, 20-50 parts of coal gangue, 2-5 parts of a solubilizer, 2-5 parts of a plastifier and 2-10 parts of a binder. According to the low-energy-consumption sintering water seepage brick disclosed by the invention, the blast furnace granulated slags and the coal gangue are compounded to prepare the sintering water seepage brick, so that the utilization rate of the blast furnace granulated slags can be effectively increased, the recycling clean high-value utilization of solid waste is realized, and the trash utilization and the sustainable development of resources are realized. According to the low-energy-consumption sintering water seepage brick disclosed by the invention, a granulate stacking method and a hole making agent method are united for use, and loose porous structure of the blast furnace granulated slags and high-carbon-content coal gangue can be used as a hole making agent, so that the intensity is guaranteed, besides, the opening communication hole rate can be increased as much as possible, the infiltrability is improved, and the water seepage brick with high permeability is manufactured.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Beneficiation-metallurgy combination process with function of comprehensive recovery for vanadium, aluminum, potassium and silicon in vanadium-containing siliceous shale

The invention relates to the field of beneficiation and metallurgy with a function of comprehensively recovering valuable components such as vanadium, aluminum, potassium and silicon from the vanadium-containing siliceous shale as a raw material. The process comprises steps as follows: the low-grade vanadium-containing siliceous shale is taken as the raw material, firstly, the vanadium-containingsiliceous shale is desiliconized with a flotation method, vanadium ore concentrate is uniformly mixed with excessive limestone and sodium carbonate, a mixture is subjected to high-temperature roastingin a rotary kiln, and products such as potassium aluminate, potassium ferrite, calcium metavanadate, calcium orthosilicate, carbon dioxide and the like are obtained; the sintered products are dissolved in a dilute alkaline solution, after a dissolution solution is desiliconized and purified, carbon dioxide gas produced by the rotary kiln is introduced into a closed container for carbonization reaction, Al(OH)3 precipitates are separated out, a dealumination solution is subjected to hydrolytic precipitation under the acidic condition, coarse vanadium is obtained and dissolved with alkali, ammonium chloride is added, ammonium metavanadate is obtained, a final solution is a potassium-rich and sodium-rich solution and evaporated step by step, and potash and soda are obtained. According to theinvention, the problem of environmental pollution produced by stockpiling of stone coal leaching residues is solved completely.
Owner:CENT SOUTH UNIV

Sludge-based micro-pore framework capturing mesh wall and method for repairing heavy-metal pollution of underground water

The invention relates to a sludge-based micro-pore framework capturing mesh wall and a method for repairing heavy-metal pollution of underground water and belongs to the technical field of environmental engineering. The invention aims at providing the sludge-based micro-pore framework capturing mesh wall which takes modified sludge as a foundation and the method for repairing the heavy-metal pollution of the underground water, which can be used for carrying out targeting reduction and adsorption aiming at a target on heavy-metal pollutants in the underground water. The sludge-based micro-pore framework capturing mesh wall provided by the invention is characterized in that a capturing mesh wall is composed of a plurality of stereoscopic capturing modules; each stereoscopic capturing module is formed by a core region and a membrane wall through compounding, wherein each core region is a sludge-based micro-pore framework hard ball carrying nano Fe (0) and each membrane wall is a sludge-coal pitch carbonized membrane; the sludge-based micro-pore framework hard balls carrying the nano Fe (0) are filled into the sludge-coal pitch carbonized membranes to form the cylindrical stereoscopic capturing module.
Owner:山西青舟环境科技有限公司

Preparation method of natural zephyranthes grandiflora capsule dye-stuff and application thereof

The invention provides a preparation method of a natural zephyranthes grandiflora capsule dye-stuff and application thereof. The preparation method comprises the following steps: washing, draining and then grinding zephyranthes grandiflora capsules into slurry; adding an organic solvent into the slurry, and then dipping the mixed slurry under a normal-temperature enclosed condition; and merging, filtering and then spray-drying the obtained impregnation liquid to obtain the natural zephyranthes grandiflora capsule dye-stuff. The application method of the natural zephyranthes grandiflora capsule dye-stuff comprises the following steps: firstly taking 10-20% of the natural zephyranthes grandiflora capsule dye-stuff and 2-10% of a mordant based on the mass of the dyed fabric; adding water to form dye liquor with the liquor ratio of 1:45-55; adjusting pH value of the dye liquor to 3-4; and finally placing the fabric fully moistened with hot water into the dye liquor for dyeing at the temperature of 60-80 DEG C for 30-60 minutes. The invention realizes waste utilization of the zephyranthes grandiflora capsules and improves dyeing effect and grade of fabrics, thus being especially applicable to dyeing silk fabrics and ensuring safe wearing of the fabrics; and the invention has the advantages of no any anaphylactic reaction, good ecological environment compatibility, biodegradability, rich raw materials and simple preparation process and simple dyeing process of the dye-stuff.
Owner:YANCHENG INST OF IND TECH

Method for carrying out aerobic composting by utilizing pond sludge

The invention belongs to the technical field of composting treatment, and particularly relates to a method for aerobic composting by using pond sludge. The method comprises the following steps: putting a mixture containing pond sludge, silkworm excrement and mushroom residues as a composting raw material in an environment with initial water content of 40-55% and room temperature for natural fermentation, carrying out primary fermentation to a high temperature of 50-65 DEG C, maintaining the temperature, carrying out irregular turning, supplementing water to 40-55%, continuously conducting heating for secondary fermentation, completing compost maturity within 25-30 days, taking a compost sample, and determining the germination index which can exceed 80% which indicats that the pond sludge is thoroughly matured by the method. Silkworm excrement rich in microorganisms and mushroom residues rich in organic matter are added to serve as a conditioner, aerobic composting decomposition of thepond sludge is achieved, and fertilizer application of the pond sludge is achieved. By adopting the pond sludge, various nutrients can be supplied to crops, a plough layer can be thickened, the physical properties of soil can be improved, and the fertilizer retention capacity of the soil can be improved.
Owner:SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI

Peanut shell activated carbon for removing toxins in peanut oil and preparation method thereof

The invention belongs to the technical field of activated carbon, and particularly relates to a peanut shell activated carbon for removing toxins in peanut oil and a preparation method thereof. The peanut shell activated carbon is prepared by carrying out pretreatment, extrusion molding, carbonization and activation on peanut shells. The preparation method comprises the following steps: pretreatment: carrying out hydrothermal treatment on the peanut shells, and pulverizing; extrusion molding: carrying out pressure molding with a granulator to obtain cylindrical granules of which the diameters are 4-8 mm and the lengths are 10-20 mm; heating, cooling in the absence of oxygen, crushing and screening to control the granule diameters at 1-3 mm; and introducing isothermal superheated vapor, storing in a sealed environment, and cooling to obtain the finished product. The activated carbon is prepared from the peanut shells which are accessible raw materials, thereby implementing utilization of waste peanut shells; and the obtained peanut shell activated carbon has the advantages of large specific area and small pore size, can simultaneously adsorb benzopyrene, aflatoxin and other harmful substances, and can prevent the peanut oil from oxidative rancidity.
Owner:山东沂蒙山花生油股份有限公司

Sludge-based microporous frame capture net wall and method for remediating groundwater heavy metal pollution

The invention relates to a sludge-based micro-pore framework capturing mesh wall and a method for repairing heavy-metal pollution of underground water and belongs to the technical field of environmental engineering. The invention aims at providing the sludge-based micro-pore framework capturing mesh wall which takes modified sludge as a foundation and the method for repairing the heavy-metal pollution of the underground water, which can be used for carrying out targeting reduction and adsorption aiming at a target on heavy-metal pollutants in the underground water. The sludge-based micro-pore framework capturing mesh wall provided by the invention is characterized in that a capturing mesh wall is composed of a plurality of stereoscopic capturing modules; each stereoscopic capturing module is formed by a core region and a membrane wall through compounding, wherein each core region is a sludge-based micro-pore framework hard ball carrying nano Fe (0) and each membrane wall is a sludge-coal pitch carbonized membrane; the sludge-based micro-pore framework hard balls carrying the nano Fe (0) are filled into the sludge-coal pitch carbonized membranes to form the cylindrical stereoscopic capturing module.
Owner:山西青舟环境科技有限公司
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