32results about How to "Reduce pollution factor" patented technology

The invention discloses a deaminizing treatment method of medium-concentration and low-concentration ammonia-nitrogen wastewater under high COD (Chemical Oxygen Demand), salt content and heavy metal content. The method comprises the following steps: regulating pH of ammonia-nitrogen wastewater to be about 10 through alkali liquor to convert ammonium ions (NH<4+>) in the wastewater into volatile NH3; removing metal ions by flocculent precipitation and filtering; preprocessing wastewater through a cartridge filter; feeding the wastewater into a hydrophobic membrane, wherein the wastewater is fed through the inside bottom part of the membrane, and an acid absorption solution is fed through the outside bottom part of the membrane; enabling NH3 to penetrate the hydrophobic membrane by dissolving and diffusing in order to be absorbed by the acid solution outside the membrane, and thus reaching the purpose of removing ammonia nitrogen. According to the deaminizing treatment method, the water treated is of complex quantity; ammonia nitrogen in wastewater can be efficiently removed under high COD, high salt content and high heavy metal content conditions; and the method is simple, small in equipment investment, low in operation cost, and has a good treatment effect.

The invention provides an environmental protection type self-radiation nano ecological paint and a preparation method thereof, belonging to the field of functional paints. The nano ecological paint comprises the components: 15% to 80% of aluminum sol, 15% to 80% of silicon sol, 4% to 10% of nano heat conductive filler, 3% to 27% of pigment and 5% to 25% of anti-settling agent, wherein the nano heat conductive filler is a compound body of 2% to 5% of nano carbon tube and 2% to 10% of nano cobalt oxide or 2% to 10% of nano zirconia. The preparation method comprises the steps of: weighing corresponding aluminum sol, nano heat conductive filler, pigment, anti-settling agent and the like, mixing and rapidly dispersing the components as component a; weighing corresponding silicon sol as component b; and mixing, slowly dispersing, standing and curing components a and b for obtaining the nano ecological paint. The invention has the advantages that the powdery bodies of the nano cobalt oxide and the zirconia have self-radiation and far-infrared release functions; the nano powder is attached to the tube wall of the carbon tube to form a netty one-dimensional heat transmitting channel; and the heat transmitting characteristic of the paint is enhanced.

The invention discloses a method for recovering gold from gold-containing barren solution and purifying the barren solution. In the method, sulfuric acid is added into gold-containing cyanide barren solution to perform acidification precipitation, pH value of the solution is regulated to be less than or equal to 2, ferrocyanide, copper, zinc and lead in the gold-containing cyanide barren solution are separated and removed from the gold-containing cyanide barren solution in a precipitate mode; lime is added into the separated acidic supernatant for neutralizing until the pH value is between 10 and 12, and formed calcium sulfate precipitate is removed; and a calcium removing agent is added into the separated basic supernatant, the formed precipitate is removed, and the separated supernatant is returned to the gold leaching process, wherein before the acidification precipitation step, a bactericide is added to the gold-containing cyanide barren solution, and the gold-containing cyanide barren solution is subjected to multi-medium filtration, microfiltration and first nano-filtration in sequence. According to the method for recovering gold from the gold-containing barren solution and purifying the barren solution, the dosage of acid agent is greatly reduced, and the treatment cost for the barren solution is reduced.

The invention provides a nano diamond superheavy gear oil which is composed of the following components in parts by weight: 28-35 parts of metallocene PAO150 basic oil, 20-27 parts of cyclohexane dicarboxylic acid ester, 18-25 parts of alkyl naphthalene, 0.01-0.03 part of nano diamond particle modified by a lipophilic surface, 0.5-1.6 parts of an amine antioxidant, 1-1.6 parts of a viscosity indeximprover,.4-2.6 parts of ashless composite anti-wear reagent at extreme pressure, 1.0-1.6 parts of a repair type friction improver, 0.8-1.3 parts of anti-emulsifying agent, 1.2-1.7 parts of a rust-proof preservative. The nano diamond superheavy gear oil has the advantages that the oil can be used at extreme environment temperature and harsh work conditions, improves extreme pressure anti-wear protection of seal gear oil box, and extends the service lives of the gear and gear oil.

This invention relates to a bonding process of non-corrosive steel carbon steel sandwich, which comprises the following steps: a) acid cleaning and derusting the carbon steel plate, surface cleaning the non-corrosive steel at the same time; b) bushing high-intensity adhesive on the surface of carbon steel plate or non-corrosive steel, and sticking them together; c) extruding the adhered non-corrosive steel and carbon steel plate, making them stick to sandwich; d) extruding the sandwich with planisher, and then cleaning excess adhesive dirt; e) forming roll bending type with rolling machine ,or forming plate type with guillotine.

The invention discloses a processing process of smelting of silicon carbide. The processing process specifically comprises the following steps: 1) collection of materials; 2) crushing; 3) drying; 4) mixing of the materials; 5) furnace loading; 6) smelting; 7) cooling; 8) waste gas treatment. The processing process is scientific and reasonable and is convenient to operate; waste gas generated in asmelting process of the silicon carbide is cooled, so that the heat of the waste gas is recycled; in addition, hot water generated in a cooling process is used for drying, so that the energy is saved,and the production cost is lowered; further, the cooled gas is filtrated, de-dusted and purified by a waste gas treatment device, so that the gas generated in the smelting process of the silicon carbide is prevented from entering atmosphere directly and causing environmental pollution, the contamination factor of the waste gas is decreased, and the effects of energy conservation and environment protection are achieved; according to the technological process, the density and the quality of a silicon carbide product are effectively improved, the production cost is low, resources are saved, andthe effects of energy conservation and environmental protection are relatively good.

The invention discloses an environmental outdoor LED fluorescent display screen comprising a box. The box comprises a plurality of modules. Each module comprises an LED lamp surface and a control element surface. A hood covers each LED lamp surface of each module. Steady-persistence fluorescent powder layers are formed on the outer surfaces of the hoods in a partial or whole manner and excited by light rays emitted from LED lamps to light. A transparent anti-radiation layer is formed on each steady-persistence fluorescent powder layer and totally covers the same. Thus material of the fluorescent powder layers cannot volatilize in the air, environment pollution factors are reduced, and meanwhile the transparent layers do not affect lighting degree of the fluorescent layers.

The invention provides a new straw weaving product bleaching treatment method, and belongs to the technical field of straw weaving product bleaching and dyeing processing. The method comprises: S1, carrying out activation pretreatment: adding a straw weaving product into a reactor, adding an aqueous solution of a surfactant I, adjusting the pH value of the solution to 4.5-5.5, heating, soaking, and carrying out activation pretreatment; S2, adding water and carrying out soaking cleaning; S3, carrying out bleaching treatment: soaking the straw weaving product in a bleaching agent solution, adjusting the pH value of the solution to 10-12, heating, carrying out first bleaching treatment, adjusting the pH value of the solution to 9-10 by using an inorganic alkali, and carrying out second bleaching treatment, wherein the bleaching agent solution is prepared from a composite hydrogen peroxide stabilizer, a surfactant II, water and hydrogen peroxide; and S4, carrying out water adding and soaking cleaning multiple times until hydrogen peroxide is detected to be qualified, taking out the straw weaving product, and drying to obtain a bleached finished straw weaving product. According to the invention, the method reduces the sewage treatment cost, is convenient to operate and easy to control, and is suitable for industrial production.

The invention discloses a production process flow for a river snail rice noodle soup base. The production process flow comprises the following process flows that snails, poultry bones or animal bones are put into a high-pressure soup cooking pot in proportion, original soup is pumped into a blending tank through a high-temperature pump, after blending, the original soup is pumped into a feeding pot through a control program, and seasonings are poured into the feeding pot and stirred; then the original soup containing the seasonings is pumped into the blending tank, homogenizing equipment is started after all the seasonings enter the blending tank, and the seasoned river snail rice noodle soup base is pumped into a storage tank after the homogenizing process is completed; and when the equipment is started in a packaging workshop, the seasonings in the storage tank are pumped into instant sterilization equipment to be sterilized and then conveyed to a packaging balance tank, and the seasonings are conveyed from a balance tank to the packaging equipment to be packaged. The production process flow of the river snail rice noodle soup base has the advantages that product pollution factors are reduced, quality is stable, use of additives is reduced, the method is healthier, centralized control efficiency is high, ultrahigh-temperature instant sterilization ensures that loss of nutritional ingredients of products is greatly reduced, and labor intensity is reduced.

The invention discloses an umbrella rib type environmental object surface sampling rod which comprises a protective cap, a sleeve handle, an umbrella rib type cotton swab, a tube body and reagents, wherein the sleeve handle is nested to the upper end of the tube body; the sleeve handle comprises a reagent storage bin and a sleeve; a valve communicated with the interior of the tube body is arrangedat the bottom of the reagent storage bin; the tube body penetrates through the reagent storage bin and is fixedly connected with the inner wall at the top of the reagent storage bin; an upper umbrella hub ring is arranged at the bottom of the sleeve; a plurality of umbrella rib supporting rods are rotationally connected onto the upper umbrella hub ring; the umbrella rib type cotton swab is arranged in the sleeve in a sliding manner; the top of a main rod of the umbrella rib type cotton swab is connected with a spring; a lower upper umbrella hub ring is arranged at the bottom of the umbrella rib type cotton swab and rotationally connected with an umbrella rib body; the middle of the umbrella rib body is rotationally connected with the umbrella rib supporting rods; the umbrella rib body iscoated with sampling cotton; the reagents are stored in the reagent storage bin; the protective cap is arranged above the sleeve handle. According to the umbrella rib type environmental object surfacesampling rod disclosed by the invention, the sampling operation links can be effectively simplified, pollution factors are reduced, and the sampling rod is convenient to carry and preserve.

A breeding container self-purification blow-down valve comprises a valve element and a valve body, a valve element guide column is arranged on the outer surface of the upper portion of a valve element cylinder, a valve body annular guide groove corresponding to the valve element guide column is formed in the upper portion of the inner wall of the valve body cylinder, and the tail end of one side of the valve element cylinder is higher than the tail end of the other side of the valve element cylinder. The valve element guide column can move up and down in the annular guide groove of the valve body to drive the valve element to move up and down. When the valve body moves upwards, the valve element sealing ring and the valve element water outlet are separated from the valve body sealing cavity upwards, the valve body water inlet is communicated with the valve element inner cavity through the valve element water outlet, opening of the valve is achieved, and water is directly discharged from the bottom. When the valve body moves downwards, the valve element sealing ring and the valve element water outlet enter the valve body sealing cavity downwards, the valve body water inlet and the valve element water outlet are disconnected, and closing of the valve is achieved. Under the condition that an external valve is not needed, the functions of upper overflow and bottom discharge are achieved by switching the position of the valve element, a connecting pipeline is simplified, water quality pollution is reduced, and the water cleaning efficiency is improved.

The invention relates to the technical field of medical auxiliary equipment, and discloses an anti-tumor traditional Chinese medicine preparation automatic blending device which comprises a fixing ring, a solid feeding device and a liquid feeding device are fixedly installed in an inner cavity of the fixing ring, and a fixing rod is fixedly installed on the edge of the bottom of the fixing ring. The solid feeding device and the liquid feeding device are used for separating materials, so that two different forms of medicines can be effectively separated, it can be guaranteed that the materials in the solid feeding device and the liquid feeding device are not mixed by other medicines, and the solid feeding device and the liquid feeding device are both divided into multiple layers; according to the medicine feeding device, all the raw materials are connected through pipelines at the top, different types of medicines can be stored in a classified mode according to the types of the medicines, mutual interference among the medicines is prevented, then the medicines are prevented from being polluted, the feeding convenience is effectively improved, meanwhile, the storage environment of the medicines before processing is guaranteed, and then the product quality is guaranteed.

The invention discloses a method for recovering antimony pentoxide from waste antimony pentachloride serving as a fluorination catalyst, which comprises the following: A, a step of extraction, which is to extract waste antimony pentachloride serving as a fluorination catalyst by using an extracting agent to obtain an organic phase extract containing antimony ions; B, a step of oxidization, which is to oxidize the organic phase extract by using an oxidant to obtain antimony oxide solution; and C, a step of hydrolysis, which is to hydrolyze the antimony oxide solution in two modes, namely adding water into the antimony oxide solution with direct stirring and adding water into mixture of the antimony oxide solution and an aluminum salt with stirring, filter and wash with water to obtain antimony pentoxide. In the method, the process is simple, the cost is low, emission of waste water, waste gas and solid waste is less, and the obtained antimony pentoxide can be used for preparing antimony pentoxide colloid or antimoniate.

The invention discloses a crude terephthalic acid production wastewater treatment system. The treatment system comprises a treatment pond body, wherein a water inlet and a water outlet are formed in two sides of the treatment pond body, wastewater enters the treatment pond body from the water inlet, sequentially flows through a baffling adjustment region, a multi-layer filter system, an absorption region, a facultative anaerobic sedimentation region, a secondary sedimentation region and a water outlet region and finally flows out from the water outlet; a distillation tower is arranged below the absorption region, crystallization towers are arranged on two sides of the distillation tower, washing regions are arranged in the crystallization towers, an acid washing region is arranged below the crystallization towers, and a recrystallization chamber is arranged in the acid washing region. According to the crude terephthalic acid production wastewater treatment system, a treatment process is completed, the recovery efficiency of crude terephthalic acid is improved, the pollution coefficient is reduced, and meanwhile, the recycling and reusing of resources are realized; the crude terephthalic acid production wastewater treatment system meets actual use requirements.