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39results about How to "Improve decontamination effect" patented technology

Water treatment compound agent for removing organic pollutants in oxidation mode with high-activity singlet oxygen and water treatment method thereof

The invention discloses a water treatment compound agent for removing organic pollutants in an oxidation mode with high-activity singlet oxygen and a water treatment method of the water treatment compound agent, and relates to water treatment agents and methods for removing pollution in oxidation modes. The problems that when the singlet oxygen is produced through a photosensitization method, a light source needs to be added, secondary pollution is generated, and the use efficiency of the singlet oxygen in a chemical method is low are solved. The water treatment compound agent is composed of bleaching powder, inorganic solid peroxide and powdered activated carbon, and the mass ratio of the bleaching powder to the inorganic solid peroxide to the powdered activated carbon is (1-10):1(1-10). According to the water treatment compound agent, hypochlorite ions provided by the bleaching powder reacts with hydrogen peroxide slowly released after the peroxide is dissolved in water to generate the high-activity singlet oxygen, and through a micro-interface provided by the powdered activated carbon, the self-decomposition of the singlet oxygen can be restrained, the survival time of the singlet oxygen can be prolonged, and the use ratio of the singlet oxygen is improved. The water treatment compound agent is high in efficiency of removing the organic pollutants in the oxidation mode, cannot generate poisonous and harmful by-products, and is convenient to transport and store and more suitable for emergency treatment.
Owner:哈尔滨工业大学高新技术开发总公司

Green environment-friendly leatherware cleaning agent and production technology thereof

A related green environment-friendly leatherware cleaning agent comprises the main active compositions in parts by weight: 6-10 parts of sodium fatty alcohol polyoxyethylene ether carboxylate, 5-9 parts of fatty acid methyl ester ethoxylates, 6-10 parts of alkylethoxyglucoside, 2-6 parts of glycerin, 0.5-3 parts of diatomite, 0.1-1.5 parts of amino silicone oil, 5-10 parts of gleditsia sinensis Lam extraction liquid, 1-10 parts of propylene glycol, 0.1-1 part of sodium lactate, 0.1-1 part of a chelating agent, and 0.01-1 part of a pH conditioning agent. The invention also relates to a preparation method of the leatherware cleaning agent. According to the leatherware cleaning agent, majority of the raw materials are extracted from animals and plants, the leatherware cleaning agent is good in biodegradability, does not contain benzene and other easily-volatile toxic solvents, is green and friendly to environment. The product is mild, good in wetabiilty and strong in leather affinity; and the leatehrware cleaning agent contains diatomite, possesses friction effect when being used to clean leatherware, is strong in detersive power, does not damage leather, and possesses advantages of being efficient for washing, convenient to use, safe and the like.
Owner:BEIJING LUOWA SCI & TECH IND

Method for preparing modified bauxite catalyst in ozone heterogeneous catalysis water treatment technology

The invention relates to a method for indexing a catalyst used for a trace toxic non-biodegradable organic pollutant in ozone heterogeneous catalysis degradation water, which belongs to the field of water treatment technology and environment functional materials. The catalyst takes powdered natural bauxite as a carrier, and takes an oxide of Fe as an active component. The catalyst is prepared by a layered immersion method which comprises the following steps: preparing an iron salt solution; immersing the powdered natural bauxite in a certain mass into the iron salt solution; and obtaining an iron modified bauxite catalyst after vapour bath, ageing, drying and calcination. The catalyst in the invention has remarkable catalytic activity in a system for removing the trace toxic non-biodegradable organic pollutant in water through ozone heterogeneous catalysis, and simultaneously has the advantages of low preparation cost, good stability and the like. The advantages are favourable for the application of the catalyst in an ozone heterogeneous catalysis system, promote the production application of the ozone heterogeneous catalysis system, and provide an effective method for technology for the enhanced removal of the trace toxic non-biodegradable organic pollutant in the water.
Owner:BEIJING FORESTRY UNIVERSITY

Stable concentrated alkyl polyglycoside natural dish washing detergent and preparation method

The invention relates to the field of the production of daily chemical products, and provides a stable concentrated alkyl polyglycoside natural dish washing detergent and a preparation method. The stable concentrated alkyl polyglycoside natural dish washing detergent is prepared from the following raw materials in parts by weight: 30 to 45 parts of starch, 10 to 15 parts of fatty alcohol, 2 to 10 parts of acid source, 3 to 30 parts of silica gel particle, 2 to 15 parts of hibiscus syriacus extracting solution, 50 to 80 parts of water and a proper amount of alpha-amylase. Through hydrolyzing part of the starch to be a short-chain polysaccharide and then synthesizing alkyl polyglycoside, a starch particle which exists in a system and is incompletely hydrolyzed and the nano silica gel particle form an adsorption carrier; the adsorption carrier is used for adsorbing the alkyl polyglycoside to form a super-concentrated product, and carries the alkyl polyglycoside to the surface of a dish to carry out adhesion and friction to increase a dirt removal effect during use; a hibiscus syriacus extract is further compounded and saponaretin, isovitexin and saponin in the hibiscus syriacus extract are used for maintaining the alkyl polyglycoside in an alkalescent environment and preventing the alkyl polyglycoside from being hydrolyzed, and have certain inhibition effects on staphylococcus aureus, typhoid bacillus and colibacillus.
Owner:CHENDU NEW KELI CHEM SCI CO LTD

Combined membrane biological reaction device for micro-polluted source water treatment

The invention provides a combined membrane biological reaction device for micro-polluted source water treatment, relates to the combined membrane biological reaction device, and particularly relates to the combined membrane biological reaction device for the micro-polluted source water treatment. With the adoption of the combined membrane biological reaction device provided by the invention, the problems that the conventional membrane biological reactor has poor de-pollution effect on micro-polluted water, serious membrane pollution and short service life of a membrane assembly can be solved. According to the combined membrane biological reaction device provided by the invention, mixed liquor of attapulgite and activated sludge are filled in a reaction container; a water inlet pump is connected with a water distribution box through a pipeline; the water inlet pump is further connected with a reaction container through the pipeline; the output end of the air pump is communicated with the pipeline between the water inlet pump and the reaction container; a membrane component is mounted inside the reaction container; the membrane component is soaked inside the mixed liquor of the attapulgite and the activated sludge; the output end of the membrane component is connected with the input end of a water outlet pump through the pipeline; and the output end of the water outlet pump is connected with a clean water box through the pipeline. The combined membrane biological reaction device provided by the invention is used for treating sewage.
Owner:GRANDBLUE ENVIRONMENT CO LTD

Strain reproduction spreading equipment for contamination control of river

InactiveCN103833147AEven distribution of oxygen contentEfficient governanceBiological water/sewage treatmentBiofilmWater flow
The invention discloses strain reproduction spreading equipment for the contamination control of a river. A base frame and a strain reproduction bracket are arranged at the bottom of the river and in water respectively, and can be arranged along the whole section of the river without hindrance to the navigation of ships, so that a primary flow area on the middle part of the river is effectively controlled, and contamination control effects are improved; in addition, the strain reproduction bracket is driven by a rocker arm to swing, so that the relative positions of a biofilm carrier and an aeration point can be changed to disturb bubbles produced by an aeration device by the biofilm carrier swinging along with the strain reproduction bracket in a floating process to form strong disorder and enhance oxygen dissolution effects and to make the oxygen content distribution of the water uniform to improve the production of decontamination strains and decontamination effects, and contamination control strains growing on the biofilm carrier easily and continuously fall off from the biofilm carrier and are spread in the water in a process of swinging along with the biofilm carrier, and are scattered towards a downstream water body under the coaction of the bubbles and water flow to improve the contamination control effects.
Owner:PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION

Skin-care washing cream for cleaning heavy oil stains and preparation method of skin-care washing cream

The embodiment of the invention discloses skin-care washing cream for cleaning heavy oil stains and a preparation method of the skin-care washing cream. The skin-care washing cream comprises a solvent, a surfactant, a porous adsorption material, a biological metabolite and a processing aid, the surface active agent at least comprises an anionic surface active agent, a nonionic surface active agent and an ampholytic surface active agent; and the biological metabolite at least comprises a biological surfactant and a snail extract. The preparation method comprises the following steps: S100, mixing a surfactant and a biological metabolite, and adding a porous adsorption material into the mixture to obtain a mixture M1; and S200, adding a solvent into the mixture M1, mixing the components to form a paste body, and then adding a processing aid until the pH value is 5.5-6.5, thereby obtaining the skin-care washing paste. The heavy oil stain treatment agent has the characteristics of effective heavy oil stain treatment, no toxicity, harmlessness, no nitrogen and phosphorus, easy degradation, biological friendliness, meeting of environmental protection requirements and the like, can effectively protect the skin of an operator, and greatly improves the friendliness to the skin of a human body.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

A kind of preparation method of iron salt solution

The invention relates to a preparation method of a ferric salt solution, belongs to the field of water treatment, and particularly relates to a method for generating a ferric salt coagulant through reaction of bivalent ferric salt and concentrated acid. The method solves the problems that the price of the existing trivalent ferric salt coagulant is high; the pollution eliminating capability of the bivalent ferric salt coagulant is poor. The preparation method of the ferric salt solution comprises the following steps of 1, weighing bivalent ferric salt solid into a reaction container; 2, dripping concentrated acid onto the surface of the bivalent ferric salt in the reaction container to obtain acid treated bivalent ferric salt; 3, then, adding distilled water for dissolving the acid treated bivalent ferric salt to obtain the ferric salt solution. The preparation method has the advantages that concentrated acid is used for taking a reaction with the bivalent ferric salt; the prepared ferric salt solution has a good pollution eliminating effect; the removal rate of the ferric salt solution on molybdate can reach 90 percent to 98 percent; the price of the bivalent ferric salt is much lower than that of an ordinary ferric sulfate; the preparation method is simple; the implementation is easy.
Owner:HARBIN INST OF TECH

Preparation method of ferric salt solution

The invention relates to a preparation method of a ferric salt solution, belongs to the field of water treatment, and particularly relates to a method for generating a ferric salt coagulant through reaction of bivalent ferric salt and concentrated acid. The method solves the problems that the price of the existing trivalent ferric salt coagulant is high; the pollution eliminating capability of the bivalent ferric salt coagulant is poor. The preparation method of the ferric salt solution comprises the following steps of 1, weighing bivalent ferric salt solid into a reaction container; 2, dripping concentrated acid onto the surface of the bivalent ferric salt in the reaction container to obtain acid treated bivalent ferric salt; 3, then, adding distilled water for dissolving the acid treated bivalent ferric salt to obtain the ferric salt solution. The preparation method has the advantages that concentrated acid is used for taking a reaction with the bivalent ferric salt; the prepared ferric salt solution has a good pollution eliminating effect; the removal rate of the ferric salt solution on molybdate can reach 90 percent to 98 percent; the price of the bivalent ferric salt is much lower than that of an ordinary ferric sulfate; the preparation method is simple; the implementation is easy.
Owner:HARBIN INST OF TECH

Water treatment composite agent and water treatment method for removing organic pollutants by oxidation with highly active singlet oxygen

The invention discloses a water treatment compound agent for removing organic pollutants in an oxidation mode with high-activity singlet oxygen and a water treatment method of the water treatment compound agent, and relates to water treatment agents and methods for removing pollution in oxidation modes. The problems that when the singlet oxygen is produced through a photosensitization method, a light source needs to be added, secondary pollution is generated, and the use efficiency of the singlet oxygen in a chemical method is low are solved. The water treatment compound agent is composed of bleaching powder, inorganic solid peroxide and powdered activated carbon, and the mass ratio of the bleaching powder to the inorganic solid peroxide to the powdered activated carbon is (1-10):1(1-10). According to the water treatment compound agent, hypochlorite ions provided by the bleaching powder reacts with hydrogen peroxide slowly released after the peroxide is dissolved in water to generate the high-activity singlet oxygen, and through a micro-interface provided by the powdered activated carbon, the self-decomposition of the singlet oxygen can be restrained, the survival time of the singlet oxygen can be prolonged, and the use ratio of the singlet oxygen is improved. The water treatment compound agent is high in efficiency of removing the organic pollutants in the oxidation mode, cannot generate poisonous and harmful by-products, and is convenient to transport and store and more suitable for emergency treatment.
Owner:哈尔滨工业大学高新技术开发总公司
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