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642results about How to "Good physical and chemical properties" patented technology

Method for removing organic matters in water by utilizing three-dimensional electrode electro-fenton and device thereof

The invention relates to a method for carrying out oxidation treatment on organic waste water by utilizing a three-dimensional electrode electro-fenton and a device thereof. The device comprises a reactor shell, a carbon material cathode, an iron plate anode, a three-dimensional particle electrode of a fixed bed, a direct-current voltage-stabilizing power supply, a microporous aeration plate and an air pump, wherein a reactor consists of a reaction chamber and a gas chamber; the carbon material cathode, the iron plate anode and the particle electrode are positioned in the reaction chamber at the upper part of the reactor; and the gas chamber is formed between the bottom of the reactor and the microporous aeration plate. After direct current is introduced, the iron anode is oxidized to generate iron ions, oxygen in the gas chamber is reduced on the surface of the cathode to generate hydrogen peroxide, and the iron ions and the hydrogen peroxide form a fenton reagent to oxidize and remove organic matters in waste water; and simultaneously, due to the particle electrode, the contact area and the contact time of the waste water and the fenton reagent are increased, and the mass transfer effect of the waste water in the reactor is reduced. The invention is applicable to treatment of various types of organic waste water, the equipment is compact, the operation is easy, the whole reactor is easy to control, and the requirements of an actual water treatment unit are met.
Owner:HUAZHONG NORMAL UNIV

Electrothermal film and manufacturing method thereof

The invention relates to an electrothermal film and a manufacturing method thereof, belonging to the technical field of semiconductor heating. The electrothermal film is mainly prepared by adopting stannic chloride, titanium tetrachloride, stannic chloride, titanium trichloride, ferric chloride, antimony trichloride, calcium chloride, potassium chloride, cadmium chloride, stannic dioxide, stannictetroxide, hydrofluoric acid, boric acid, ethanol, isopropyl alcohol and inorganic water. By adopting the above formula, the mixture is mixed, stirred and heated to prepare into electrothermal film treating fluid, a semi-finished product of the electrothermal film is obtained by spraying the electrothermal film treating fluid at negative pressure on the electrothermal film carrier, and then silveroxide slurry is coated on the semi-finished product of the electrothermal film for baking to form a finished product of the electrothermal film. The electrothermal film has reasonable proportion andsimple manufacturing process, can be manufactured into various electrothermal film heating devices, has a working temperature capable of being up to 500 DEG C, and has wider application range. The electrothermal film of the invention also has the function of far infrared radiation, can play a role of physical therapy and health care to human body, and can help improve the quality and output of agricultural products.
Owner:GUANGDONG HALLSMART INTELLIGENCE TECH CORP LTD

Active peptide feed additive and its preparation method and use

The present invention relates to an active peptide feed addictive, as a mixture of one or more plant protein and animal protein, which is the product of the following steps: fermenting and degrading the mixture through bacillus and the like, controlling the degree of hydrolysis at 20-35%, obtaining a fermentation supernatant after a separation post-processing process, concentrating drying the supernatant or directly adsorbing the supernatant onto the carrier, and then low temperature drying it. Said active peptide feed addictive is capable of obviously depressing development of bacillus coli and salmonella, and can prevention and cure diarrhea caused by bacilli or lienteric diarrhea; can exert its functions at a very low concentration, with a very intense effect; can regulate stomach and intestine bacterium group and promote animals digestion functions; can excite animal immune function, reinforce animal disease resistance against a plurality of epidemic diseases and greatly reduce the morbidity and death rate; can promote animal development and improve the growth velocity; can improve the feed use ratio and reduce production costs. Applications of the microorganism fermentation degradation method provided by the present invention have a low fabricating cost, and the obtained peptides have many kinds and high content, without environment pollutions.
Owner:CHINA AGRI UNIV

Active stephanoporate mineral TiO2-doped composite catalytic antimicrobial material preparation and using method

The invention discloses a preparation and using method of multiple active porous mineral doped nano-TiO2 composite catalytic anti-bacterial materials, and the preparation and using method belongs to the technical field of new material. The main technical key point of the invention is to combine the anti-bacterial mechanism of the ion modified porous minerals and the photo-catalytic anti-bacterial mechanism of the element doped nano-TiO2 to realize the synergistic anti-bacterial role, the modification of the porous minerals by the metal anti-bacterial ion (one of Ag<+>, Cu<2+>, Zn<2+> and Fe<3+>) and the rare earth ion and the nano-TiO2 doped synchronous composite process technology by the metal anti-bacterial ion and the rare earth ion are realized during the preparation process, thereby obtaining the composite catalytic anti-bacterial composite materials which are characterized by broad-spectrum, long-acting effect and safety, etc. The composite catalytic anti-bacterial products prepared by adopting the method and the technical process have low cost, anti-bacterial and long-acting effects, broad-spectrum and good synergistic anti-bacterial effect, the preparation process of the materials has the advantages of simpleness and strong operationality, and the like, so the preparation and using method can be widely applied in anti-bacterial coating, putty, fabric and other industries.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Preparation method of echinoid titanium dioxide microspheres in single/double layer cavity structure

The invention relates to a preparation method of echinoid titanium dioxide microspheres in single/double layer cavity structure, belonging to the field of nano composite materials. The method comprises the following steps: (1) preparing monodisperse silicon dioxide microspheres with uniform particle size; (2) by using silicon dioxide as a template, coating a titanium dioxide layer on the surface of the silicon dioxide microspheres by using a sol-gel method to obtain core-shell type silicon dioxide/titanium dioxide composite microspheres; (3) regulating the concentration of sodium hydroxide solution, the hydrothermal reaction time and other conditions, and preparing echinoid titanium-base microspheres in the single/double layer cavity structure in a controllable way; and (4) treating the echinoid titanium-base microspheres in the single/double layer cavity structure with hydrochloric acid with a certain concentration, and calcining at high temperature to obtain anatase-type echinoid titanium dioxide microspheres in the single/double layer cavity structure. The material prepared by the method has the high-activity pure-phase titanium dioxide crystal structure, and has the advantages of large specific area, complete appearance and high yield; the technical process is controllable and easy to operate; and the invention also has the advantages of low preparation cost, no pollution and low energy consumption.
Owner:UNIV OF SCI & TECH BEIJING

Formula of culture medium for industrial production of sparasis crispa and production process

The invention provides a formula of a culture medium for industrial production of sparasis crispa and a production process. The formula of the culture medium comprises the following components in percentage by dry weight: 65 to 75 percent of pine sawdust, 10 to 20 percent of husk, 5 to 10 percent of potato powder, 5 to 10 percent of flour, 0.1 to 0.5 percent of peptone, 0.1 percent of ammonium sulfate and 1.2 to 1.8 percent of brown sugar. The production process comprises the following steps of: preparing and bagging the culture medium; sterilizing and inoculating; culturing hypha; inducing a primodium; differentiating the primodium; opening the bag; managing balls; and harvesting. The invention provides a formula of a culture medium for industrial production of sparasis crispa, which has the advantages of rich nutrition, balanced proportion, good ventilation, and capacity of meeting the requirement of industrial production. The production process has the advantages of short hypha culturing time, uniform fruiting at bag openings, good fruiting consistency, convenience of management, contribution to industrial culture, white mushroom body, high yield, and high biological transformation rate of over 43 percent.
Owner:FUQING CITY FIRE KIRIN EDIBLE FUNGUS TECH DEV +1

Biodegradable polypropylene carbonate composite material and preparation method thereof

InactiveCN101962470AGood physical and chemical propertiesGood heat resistance and dimensional stabilityPolyethylene terephthalate glycolPackaging industry
The invention discloses a biodegradable polypropylene carbonate composite material and a preparation method thereof. The composite material is prepared from 50 to 90 mass parts of polypropylene carbonate and 10 to 40 mass parts of polyethylene terephthalate-1,4-cyclohexane dimethanol ester serving as raw materials by the following steps of: drying the raw materials at the temperature of between 45 and 55 DEG C for 5 to 10 hours; mixing the raw materials in a high-speed mixer for 0.5 to 3 minutes; and melting, mixing, extruding and granulating the mixed raw materials at the temperature of 65 to 170 DEG C. A thin film product prepared from the biodegradable PPC type composite material of the invention by blow molding has high physical and chemical properties; the glass-transition temperature of the PPC/PETG composite thin film is up to 69.2 DEG C; the thermolysis temperature of 5 weight percent of the material is up to 289.7 DEG C; the longitudinal tensile strength of the composite thin film is up to 28.6MPa and the transverse tensile strength is up to 16.7MPa; the longitudinal breaking elongation is up to 561.9 percent and the transverse breaking elongation is up to 755.3 percent; and thus the application range of the completely biodegradable polyester, namely the PPC in the agriculture, foods and packaging industry is expanded.
Owner:CHINA NAT OFFSHORE OIL CORP +3

Preparation method of macroporous strong-alkaline anion exchange resin for removing nitrate in water

The invention discloses a preparation method of styrene macroporous strong-alkaline anion exchange resin for removing nitrate in water. Styrene, divinyl benzene, benzoyl peroxide, liquid paraffin, polyvinyl alcohol, gelatin, methylene blue, dichloromethane, 1,4-bis(chloromethoxy)butane, anhydrous tin tetrachloride and triethylamine are used as main raw materials; the macroporous strong-alkaline anion exchange resin is prepared through suspension polymerization reaction, chloromethylation reaction and amination reaction. The preparation comprises the following steps: synthesis of styrene divinyl benzene cross-linked polymer by the suspension polymerization method, chloromethylation reaction of styrene divinyl benzene cross-linked polymer, and amination reaction of chloromethylated styrene divinyl benzene cross-linked polymer. The particle size of the prepared resin is 0.5-1.5mm; the resin has the advantages of uniform pore distribution, strong adsorbability against nitrate, high selectivity on nitrate and the like; the physicochemical properties of the resin are good. The resin can be applied to the nitrate removal treatment process of water, and has good development prospect and practical significance.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Plug seedling substrate of tomatoes and preparation method

The invention discloses a plug seedling substrate of tomatoes and a preparation method. Peat is taken as the material; excrements of livestocks are taken as earthworm foodstuff; environment suitable for the growth of earthworms is provided; wormcast which is processed and generated by the earthworms is sieved to obtain wormcast compost with the grain size being 1-4mm; and the peat and the wormcast compost are fully mixed; mineral materials with a certain fineness such as expandable vermiculite, perlite and the like are added to improve the physical properties and the buffer performance of the substrate to generate a novel tomato seedling substrate. The percent by volume of various components are that the peat accounts for 15-25%, the wormcast compost accounts for 55-65%, the expandable gardening vermiculite accounts for 5-15% and the perlite accounts for 5-15%. The plug seedling substrate disclosed by the invention has the advantages of simplicity in preparation method, richness in resource, low cost of materials, turning waste into wealth, reducing environmental pollution and sufficient nutrient. The plug seedling substrate is used for the plug seedling of tomatoes, eliminates top application during seedling raising, improves the quality of tomato seedlings and reduces the pesticide application. Thus, the seedling quality is ensured, the cost and the labor are saved and the survival and the high-quality and efficient growth of the tomato seedlings, the yield and the construction of quality are ensured.
Owner:扬州瑞华环境与生物工程研究所有限公司

Mitomycin double sustained release film of implanted antineoplastic agents and its preparation method

The invention discloses a double controlled release film agent of implanted antineoplastic agent mitomycin and a manufacturing method; the invention relates to a medicinal controlled release film agent. The invention provides a double controlled release film agent of implanted antineoplastic agent mitomycin, which relates to a medicinal controlled release film agent with high enveloping ratio, long continuous release duration, small incidence of burst release, few toxic and side effects, high medicine concentration on tumor lesions and low recrudescence probability of tumor, and a manufacturing method. The film agent includes mitomycin, polymer, lecithin, chitosan and collagen. The mitomycin and the lecithin are dissolved, lyophilized in order to obtain a colloidal mixture; the polymer is dissolved in organic solvent in order to obtain a polymer solution; the polymer solution is then added in the colloidal mixture in order to obtain a reverse micelle; the reverse micelle is further added to a polyvinyl alcohol solution, and an O/W latex is obtained by emulsification; the latex is lyophilized in order to obtain carrier micro-spheres; the collagen is dissolved in the acid solution in order to obtain a collagen solution; the chitosan is dissolved in the acid solution in order to obtain a chitosan solution; the collagen solution and the chitosan solution are mixed in order to obtain a collagen-chitosan mixture solution; finally the carrier micro-spheres are dispersed in the collagen-chitosan mixture solution which is then poured in a mould and dried.
Owner:XIAMEN UNIV
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