216results about How to "Promote oxidative decomposition" patented technology

The invention discloses a sewage treatment system for combined tidal flow artificial wetland, belonging to the technical field of sewage treatment. The system comprises a non-powered automatic water charging device (9), an artificial wetland bed and a non-powered automatic water discharging device (2), wherein the non-powered automatic water charging device (9) is positioned above the artificial wetland bed and is communicated with the artificial wetland bed through a siphon water inlet pipe (10); the artificial wetland bed is provided with a water discharging layer (5), a denitrification reinforcing layer (7), a reinforcing reaeration layer (8) and an aerobic ecological sand layer (17) from the bottom up; and the non power automatic water discharging device (2) and the artificial wetlandbed form a connector and are connected with each other through the bottom water discharging layer (5). The invention further discloses a sewage treatment method using the system, comprising two stepsof waterflooding absorption and emptying reaeration. Compared with the traditional combined wetland, the sewage treatment system for the combined tidal flow artificial wetland increases daily sewage treatment amount and reduces construction cost.

The invention provides a high-property absorption and wave absorption type catalyst for VOCs (Volatile Organic Chemicals) catalytic oxidation. The high-property absorption and wave absorption type catalyst has a structural formula: a Cu-Mn-Ce / TiO2-molecular sieve or a CNDs-Cu-Mn-Ce / TiO2-molecular sieve, wherein CNDs serve as a modifier; Cu and Mn serve as catalytic activity components; Ce serves as a promoted catalytic metal; a TiO2-molecular sieve serves as a carrier. The invention further provides a preparation method of the catalyst. According to the catalyst and the preparation method of the catalyst provided by the invention, the treatment cost is greatly reduced and energy is utilized at maximum through the advantages of the combination of a plurality of materials, so that the relatively good VOCs catalytic oxidation effect can be realized under the microwave irradiation.

The invention provides a system for repairing polycyclic aromatic hydrocarbon contaminated soil. The system is provided with soil pretreatment equipment, chemical oxidation equipment, thermal desorption equipment, soil accumulation equipment and flue gas dust removal equipment in sequence. Conveying belts are arranged between the soil pretreatment equipment, the chemical oxidation equipment, the thermal desorption equipment and the soil accumulation equipment. The thermal desorption equipment communicates with the flue gas dust removal equipment through a pipeline. The soil accumulation equipment communicates with the soil pretreatment equipment through a pipeline. The invention further provides a method for repairing the polycyclic aromatic hydrocarbon contaminated soil. According to the system and method for repairing the polycyclic aromatic hydrocarbon contaminated soil, chemical oxidation and low-temperature thermal desorption are combined, and therefore the removal rate of polycyclic aromatic hydrocarbon of the soil can reach 99%, the repairing effect of the contaminated soil can be effectively improved, and the repairing period can be effectively shortened.

The invention discloses a new application of sodium hydrosulfide for promoting germination of wheat seeds under the stress of heavy metals, namely, the application is that the sodium hydrosulfide is taken as a sprout-promoting agent of germination in the soil polluted by heavy metals of Al<3+>, Cd<2+>, Cr<3+>, Cr<6+>, Pb<2+>, Hg<2> and the like. The invention can effectively improve the germinability of the wheat seeds under the stress of heavy metals, and induces the seeds to germinate fast and regularly. Research proves that the sodium hydrosulfide of the hydrogen sulfide donor is adopted to preprocess the wheat seeds, which can remarkably induce the activity expression of hydrolytic enzyme of amylase, protease, lipase and the like, in the seeds, enhances the oxygenolysis of storage matter, relieves the oxidative damage caused by the stress of the heavy metals in the seeds and maintains the lower membrane lipid overoxidation level in the seeds and the seedlings, thus being beneficial to the normal growth of embryo and radicle. The invention solves the key problem of restoring the production of the wheat in the areas polluted by heavy metals, has simple operation; the needed reagent is single and is easy to be obtained.

The invention relates to an oil exploitation technology, in detail a fracturing process for releasing the pollution of fracturing liquid. It solves the problem that fracturing liquid hurts the storing layer in water-power fracturing construction for oil exploitation existing in prior technology. Procedures comprise that ahead fluid is injected into the oil storing layer; when cracks appear on the oil storing layer sand carrying liquid is injected continuously; then replacing liquid or isolating liquid is injected continuously; chlorine dioxide resultant is injected singly in the process mentioned above. Filter cake and concentrated fracturing liquid in ground crack can be eliminated more thoroughly and guiding flow capability of support sands in crack is improved. Permeability and retention can achieve more than 90%.

The invention relates to a zinc ferrite-loaded carbon nano tube catalyst prepared by a microwave-hydrothermal method and an application of the catalyst in degrading organic pollutants in water. A preparation method of the catalyst comprises the steps of dissolving FeCl3 and ZnCl2 into deionized water, adding a pretreated carbon nano tube into a solution, performing ultrasonic treatment for 1.0-3.0min, adjusting the pH to 7.5-11.5, stirring and transferring into a polytetrafluoroethylene reaction tank, putting the reaction tank into a microwave digester, performing hydrothermal reaction under the pressure of 0.3-1.5MPa for 10-40min, washing a product obtained by the reaction with the deionized water until the product is neutral, filtering the product, drying the product under the constant temperature of 70 DEG C, grinding the product, and screening the product with a screen of 100 meshes to obtain the zinc ferrite-loaded carbon nano tube catalyst. The catalyst provided by the invention is combined with microwaves to degrade the organic pollutants in water; the catalyst preparation speed is high, the degrading efficiency is high, the rate is high, and the cost is low; no intermediate product or secondary pollution is generated.

The invention relates to a preparation method of nickel foam supported bimetal MOF base ozone catalyst, a production thereof and application. The preparation method comprises the steps that a metal organic framework ZIF-67 is taken as a template, nickel foam serves as a carrier, an in-situ hydrothermal-impregnation synthesis method is adopted to prepare a supported porous Mn / Co bimetal MOF base ozone catalyst, bimetal Mn / Co oxide in situ grows on a nickel foam base through a hydrothermal method, the supported bimetal oxide is modified by ZIF-67 through a impregnation method, and thus the nickel foam supported bimetal MOF base ozone catalyst is prepared. According to the preparation method, the crystal size and morphology of the catalyst are regulated effectively and accurately, evenly-distributing of active sites is facilitated, the decomposition rate on ozone and the mineralization rate on organic matter of the nickel foam supported bimetal MOF base ozone catalyst are greatly improved, the problems of separating and recycling of suspended catalysts can be effectively solved, the operation cost of water treatment is lowered, and large application prospects are achieved.

The invention relates to a repairing method and a repairing device of black and odorous river water. The repairing method is characterized by comprising the following steps of: sewage interception treatment of a sewage drainage opening, aeration and water body purification treatment, recycling and treatment of bottom bud sediment, planting of ecological vegetation, establishment of a river bank gallery road and establishment of a water culture path by gallery road guardrails; the steps and the device are commonly finished. The repairing method and the repairing device can be used for recycling bottom sludge of a river channel; a river bank is reasonably utilized and a previous black and odorous river channel is changed into an ecological system integrating afforestation, leisure and industry.

The invention relates to a composite feed additive for preventing and curing liver and gallbladder syndromes of fishes, which is mainly prepared by mixing raw materials of 50% choline chloride, green tea powder, insect chitin, selenium protein and oxidation resistant vitamins. The additive of the invention not only can prevent and cure liver and gallbladder syndromes of main fishes but also can prevent and cure hemorrhagic diseases of partial aquatic animals such as shrimps, can improve the immunity of various kinds of fishes and improve the production performance thereof, has the advantages of wide sources and easy market purchase of the adopted raw materials, simple preparation processes, convenient use and environmental protection, improves the water quality, and can not cause any harmful residues.

The invention provides a method for disposing sludge. The method comprises the following steps of: mixing sludge to be disposed with oxidants and an oxidation guide catalyst to carry out redox reaction; and mixing the redox reaction product with a flocculant to carry out coagulation to obtain a solid substance and filtrate, wherein the mass ratio of the oxidation guide catalyst to the dry basis of the sludge to be disposed is (3-8%):1; and the oxidation guide catalyst comprises 5-45wt% of metallic compounds and 55-95wt% of adsorbents. The method has the beneficial effects that when the sludge is disposed with the oxidation guide catalyst capsule adopted in the method provided by the invention, the initiation effect of the oxidation guide catalyst capsule can be exerted, without adding pH value regulators to the oxidation guide catalyst capsule, so that the oxidants can better decompose organic substances in the sludge in an oxidative manner; and therefore the sludge disposed by the method is neutral and the subduction amount of the sludge reaches the maximum, thus being beneficial to conduction of the subsequent process.

The present invention relates to a batch type constructed wetland sewerage treatment method and a system thereof, wherein the system comprises a cell body, a filling, a water intake pipe, a water output pipe and a ventilating pipe. The cell body is filled with matrix filling and is provided with a ventilating pipe, wherein plants are planted in the filling. Each performance period of the system comprises four steps of feeding water, reaction, discharging water and emptying, and the system runs in a manner of an ordinal batch type and a repetitive cycle period. The water intake pipe is switched in from the upper part, and the reaeration of the system bottom at reaction stage is intensified by the ventilating pipe, which improve the nitration efficiency. After the reaction finishes, discharging is carried out by the bottom water output pipe, and then the constructed wetland is at an emptying and idlesse step, wherein the reaeration of the constructed wetland system is completed, so as to improve the nitration efficiency of the system, the oxidative decomposition of sludge and the jam of the system. The present invention has the advantages of high efficiency, excellent denitrogenation effete, small occupation of land, little energy consumption, low cost, and is not easy to be jammed.

A method for cleaning air features that the ultraviolet ray, ozone, microwave, photocatalytic degradation and adsorptive filter are integrated for removing bacteria and degradating toxic and harmful organic substances. Its apparatus is composed of microwave generator and detoxicating unit. Said detoxicating unit consists of casing, more partition layers made of activated layer, inlet filter, ultraviolet light source and fan.

The invention provides special medical infant formula milk powder with yak milk and a preparation method thereof. Each ton of infant formula milk powder comprises the following raw materials: 120-150 kg of yak milk, 80-300 kg of maltodextrin, 40-250 kg of glucose, 150-180 kg of anhydrous milk fat, 60-100 kg of refined vegetable fat, 100-140 kg of whey protein hydrolysate, 10-30 kg of milk protein isolate, and 200-260 kg of white granulated sugar. The yak milk is used as the main raw material to avoid the condition that in exclusive use of common milk, infants need to supplement a large quantity of organic and inorganic nutrients synthesized chemically, so that the yak milk can be absorbed and metabolized well by the infants, the stimulation to the gastrointestinal tract is reduced, the oxidation resistance and the immunocompetence of the human body are enhanced, the oxidative decomposition of fat is promoted, and the human protein synthesis is promoted, and the milk powder plays an important role in promoting the growth and development. The infant formula milk powder uses whey protein and milk protein isolate subjected to enzyme hydrolysis instead of lactose, and the infant formula milk powder is a nutrition specially prepared for infants who are 0-12 months old, lactose-intolerant, and are in diarrhea period and diarrhea recovery period.

The invention discloses an ecological restoration device and method for an urban black-odor riverway. The device comprises multi-stage overflow dams arranged at different water level differences of a black-odor river. A plurality of biological floating beds are arranged inside each overflow dam. A nanometer microhole aeration disc is arranged at the bottom of each biological floating bed. Floating plants are arranged inside the biological floating beds. A secondary combined subsurface wetland is arranged at the downstream part of the tail-stage overflow dam and comprises an aeration vertical flow wetland, a bending-flow type horizontal flow wetland and a water pump. Water inside the tail-stage overflow dam is lifted by the water pump and then enters the aeration vertical flow wetland, outflow water of the aeration vertical flow wetland flows into the bending-flow type horizontal flow wetland, and outflow water passing through the bending-flow type horizontal flow wetland flows back to the riverway. The device is simple in structure, low in energy consumption, and capable of efficiently removing nitrogen, phosphorus, sulphur, organic matters, heavy metal and other pollutants in the urban black-odor riverway at the same time.

The invention discloses a method for removing impurities and synchronously preparing a calcium-aluminate-series steel-making desulfurization agent through aluminum ash sintering. According to the method, aluminum ash and a calcium-containing raw material are evenly mixed and pressed into agglomerates; the obtained agglomerates are dried and then sequentially placed in an air atmosphere to be subjected to first-section low-temperature roasting, placed in a strong-oxidizing atmosphere to be subjected to second-section intermediate-temperate roasting and placed in an air atmosphere to be subjected to third-section high-temperature melting roasting, roasted products are cooled and crushed, and thus the pre-melted calcium-aluminate-series desulfurization agent taking 12CaO.7Al2O3 as the main phase is obtained. Through the method, industrial waste residue is utilized as a main raw material, the raw material source is wide, the cost is low, the high added value is achieved, operation is easy,the production cost is low, the environmental friendly effect is achieved, and industrial production requirements are met.

The invention discloses precoated sand and a preparation method thereof, and belongs to the technical field of the foundry industry. The precoated sand comprises, by weight, 100-110 parts of roughing sand, 2-4 parts of modified phenolic resin, 1-3 parts of a coupling agent, 0.3-0.5 part of urotropine, 0.6-0.8 part of modified lignin, 1-3 parts of a dry material, and 1-3 parts of ethyl acetate. The precoated sand is formed by combining the specific components, especially, 1-Hydroxyethylidene-1,1-diphosphonic acid can be catalyzed by ceric oxide to perform dehydration reaction with the modified phenolic resin during heating, resin carbonization is promoted, thus, the binding force between the resin and the sand is reduced, and the collapsibility of the precoated sand is improved; and in addition, the ceric oxide can also stop the modified phenolic resin from performing free radical reaction caused by oxidation, so that the heat resistance of the precoated sand is improved. Meanwhile, the invention further discloses the preparation method of the precoated sand. The method adopts the specific steps and the specific material adding sequence, and thus, the precoated sand which is good in heat resistance and prone to collapsing can be obtained quickly.

The invention discloses a method for reinforcing the microbiological leaching effect of zinc blende. The method comprises the steps of 1, smashing zinc blende sample ore into particles and smashing iron pyrite sample ore and / or copper pyrite sample ore to be added into particles; 2, sterilizing a culture medium, the zinc blende and iron pyrites and / or copper pyrites to be added at high temperature and high pressure; 3, adding the sterilized zinc blende into a shake flask containing the culture medium, then adding the iron pyrites or the copper pyrites into the shake flask and carrying out inoculation of mineral leaching microorganisms; 4, placing the shake flask in the step 3 on a constant-temperature shaker for cultivation; 5, measuring the leaching efficiency of zinc in the leaching process. According to the method, by adding the iron pyrites in a microbiological leaching system of the zinc blende, the pH value in solutions is low, the concentration of iron ions is high, the redox potential is high, oxygenolysis of the zinc blende is reinforced under the synergistic effect of the microorganisms and physical and chemical factors, and the leaching efficiency of the zinc can be improved obviously. The method provides technological guidance for efficient leaching of the zinc blende.

The invention relates to bamboo salt food tea and a production method thereof. The production method comprises the following steps of: drying materials such as lotus leaves, hemp fruits, pine needles, and mulberry leaves respectively; powdering the materials to obtain powder; adding bamboo salt into the powder to obtain a mixture; and performing high temperature sterilization on the mixture to prepare powder, tea bags, tablets or candies, or boiling the mixture in water and filtering the mixture to prepare aqueous beverage. Most people have moist, lustrous and firm facial skin, feel vigorous and difficultly feel tired in work, and the hair hardly becomes dry and yellow, whitens or drops off when the people drink the bamboo salt food tea for 1 to 3 months; and the bamboo salt food tea alsohas effects of lowering blood fat, blood pressure, and blood sugar, and has magical effects of curing stomach diseases, nourishing a stomach, and invigorating the stomach for the people who have all kinds of stomach diseases.

The invention provides yak milk formula milk powder for middle and old age, and a preparation method thereof, wherein the main raw materials of the yak milk formula milk powder for middle and old age of per ton comprise: 100-800Kg of yak milk, 2000-4000Kg of fresh milk, 200-475Kg of whey powder (D90), 20-100Kg of whey protein concentrate (WPC34), 10-100Kg of refined plant oil, 15-150Kg of lactose, fructo-oligose, galactooligosaccharide, conjugated linoleic acid, phosphatidylserine, docosahexenoic acid, etc. The formula milk powder uses yak milk and fresh milk as milk raw materials, avoids the need of supplementing a lot of chemically synthesized organic and inorganic nutrients when common milk is individually used, can be better absorbed and metabolized for a consumer, reduces stimulation to gastrointestinal tracts, can enhance antioxidation and immunization capability of the body, promotes oxidation and decomposition of fat, promotes human protein synthesis, regulates balance of various beneficial bacteria, and prevents diarrhoea and constipation.

The invention discloses a method for reinforcing leaching of chalcopyrite microorganisms. The method comprises the steps that (1) a chalcopyrite sample, a pyrite sample and a blende sample are crushed into particles; (2) a culture medium, chalcopyrite, blende to be added and / or pyrites to be added are subjected to high-temperature and high-pressure sterilization; (3) the sterilized samples are put into a shake flask with the culture medium according to the requirement, and the microorganisms in bioleaching are inoculated; (4) the shake flask in the step (3) is placed in a constant-temperature shaking table to be cultured; and (5) the leaching efficiency of copper in the leaching process is measured. By adding the pyrites and the blende in a chalcopyrite microorganism leaching system, pH of a solution is low, the concentration of iron ions and the redox potential are high, oxygenolysis of the chalcopyrite is reinforced under the synergistic effect of biological, physical and chemical factors, and the leaching rate of the copper is increased. Compared with microorganism leaching results obtained without adding any minerals, the leaching rate of the copper is increased by 5.0%-5.5%. The method provides technological guidance for efficient leaching of the chalcopyrite.

The invention relates to a food detoxification machine and a detoxification method. The food detoxification machine comprises an electrifying device, a processing chamber, a pulse generation device, a control unit, a temperature control unit, and a water feeding and discharging unit, wherein the electrifying device is connected with an external power source to supply power for the food detoxification machine, the pulse generation device comprises a high-voltage pulse power supply and at least one pair of electrodes connected with positive and negative poles of the high-voltage pulse power supply, the electrodes are installed on the front and rear walls, side walls and the bottom of the processing chamber, the temperature control unit is installed in the processing chamber and connected with the control unit, the water feeding and discharging unit comprises a water feeding pipe and a water discharging pipe, and both of the water feeding pipe and the water discharging pipe are communicated with the processing chamber for automatically replacing water. During use of the food detoxification machine, food to be processed is placed in the food detoxification machine, the high-voltage pulse power supply is started, and a high-voltage pulse electric field is generated between each pair of electrodes to perform detoxification on food.

The invention discloses a method for synchronously preparing sodium aluminate through aluminum ash soda sintering denitrification. The method comprises the steps that aluminum ash and mixed sodium salt prepared from sodium carbonate, sodium bicarbonate and sodium peroxide are mixed evenly, and pressed into agglomerates; the agglomerates are dried and sequentially placed in an air atmosphere to besubjected to first-section low-temperature roasting and placed in a strong-oxidizing atmosphere to be subjected to second-section intermediate-temperate roasting, roasted products are cooled and crushed, and then leached out by an alkaline solution, and thus a sodium aluminate solution is obtained. According to the method, industrial waste residue is utilized as a main raw material, the raw material source is wide, the cost is low, the aluminum recovery rate is high, operation is easy, the production cost is low, the environmental friendly effect is achieved, and industrial production requirements are met.

The invention relates to a seawater pond prawn biological control green aquaculture method which belongs to the seawater pond prawn aquaculture field. Before putting in larva prawn, a prawn pond artificial ecological system is established in a seawater pond. The method comprises the following steps: (1) 0.5m3 to 1m3 of lichen every mu of prawn pond is transplanted in April; (2) 2kg to 3kg of algal gammarid very mu of prawn pond is transplanted from April to the beginning of May; (3) 1kg to 2kg of corophiidae very mu of prawn pond is transplanted from April to the beginning of May; (4) 10kg to 20kg of assimineidae every mu of prawn pond is transplanted from April to the beginning of May; (5) pseudopolydora is transplanted in the same water inlet period; (6) culture; (7) daily test. The method has the advantages that the prawn pond artificial ecological system provides biological bait for the prawn, prevents diseases, realizes green aquaculture without public hazard, replaces traditional mechanical clearing with biological purification, and realizes discharge without pollution during prawn aquaculture.

The invention discloses a biomembrane denitrification method for nitrogen containing sewage. A biomembrane denitrification reactor has the structure described as follows: a transversal plate (a), a vertical plate (b), a vertical plate (c) and a transversal plate (d) are arranged in a reactor, wherein the transversal plate (a) divides the reactor into an upper part and a lower part, wherein the lower part is a hydrolytic acidification zone and the upper part is an A / O zone. The A / O zone is divided into three parts by the vertical plate (b) and the vertical plate (c), wherein the three parts successively are an aerobic zone (O), a transition zone and an anaerobic zone (A). The lower end of the vertical plate (b) is sealedly connected to the transversal plate (a). A water passing gap is formed between the upper end and the top of the reactor. The upper end of the vertical plate (c) is sealedly connected to the top of the reactor. A water passing gap is formed between the lower end of the vertical plate (c) and the transversal plate (a). The left end of the transversal plate (d) is sealed connected to the bottom of the vertical plate (c), while the right end is connected to a wall of the reactor. The transition zone is filled with sponge iron deoxidant granules. In sewage treatment, sewage is fed from the bottom of the reactor, and successively passes through the hydrolytic acidification zone, the aerobic zone, the transition zone and the anaerobic zone, and is discharged from the upper part. In the reactor, biomembranes in the zones are cultured independently, so that the biomembranes having special functions can be cultured better. The reactor has high biomembrane forming speed and has good denitrification effect.

This invention relates to one waste salt innocent treatment method and device from industry waste water, wherein the method comprises the following steps: heating the oven chamber to the 850 to 900 degrees and adding the waste salt from chamber back; the salt is melt to slide down with its organics oxidative decomposed and its tail gas recycled and cleaned for exhaust; the remaining part of the waste salt sliding to the burst oven bottom to get the industry pure salt. The device comprises one burst oven, burst device, tail smoke channel and smoke gas washing cleaning tower, wherein, the burst device is fixed on the front wall of the burst oven; the burst oven chamber top is near to the back wall with waste salt entrance mouth; the chamber bottom is located with melt salt collection pool.

The invention discloses a multifunctional paddy drying device, and belongs to the technical field of paddy drying equipment. The device comprises a barn, where a drying chamber is connected to the lower end of the barn; a hot air system is arranged in the drying chamber; a drying tank is connected to the lower end of the drying chamber; a returning tank is connected to one side of the drying tank;a bottom door is arranged on the bottom part of the drying tank; a filter plate is inclinedly connected to the upper end of the bottom door; filter holes with the hole diameters being smaller than paddy particles are formed in the surface of the filter plate; and sponge rings consistent to the specifications of the filter holes are connected to the upper surfaces of the filter holes. The multifunctional paddy drying device provided by the invention is high in automation degree, simple and convenient to operate, fast in drying speed, high in uniformity and high in reliability; and after drying, the head rice rate of paddy is high, the edible quality of the paddy can be improved, and a storage property is prolonged.

The invention discloses an ozone catalyst for high-concentration organic nitrogen wastewater treatment. The ozone catalyst comprises the following preparation steps: (1) roasting: roasting activated carbon in an atmosphere of sulfur dioxide and generating a large number of sulfur oxide groups on the surface of the activated carbon; (2) impregnating: impregnating the roasted activated carbon in impregnation liquid for 1-48 hours, then taking out and drying; (3) roasting: roasting the activated carbon obtained in the step (2) at a temperature of 500-800 DEG C to obtain the ozone catalyst for high-concentration organic nitrogen wastewater treatment. The ozone catalyst disclosed by the invention has relatively strong activity, so that the utilization rate of ozone can be greatly improved; while catalytic ozone oxidation is performed, oxygen in the ozone (residual oxygen for ozone preparation) can be utilized, so that the purpose of greatly reducing COD is achieved; the ozone catalyst disclosed by the invention is particularly suitable for high-concentration organic nitrogen wastewater treatment.