77results about How to "Pollution effective" patented technology

The invention discloses a mycotoxin detoxification agent for feed and a preparation method and a feed additive thereof, and belongs to the field of feed additives. The mycotoxin detoxification agent can be used for detoxification of feed raw materials and compound feed of mycotoxin polluted corn, grains and the like. The mycotoxin detoxification agent consists of modified montmorillonite, yeast cell wall, chitosan and the like; and the preparation method has simple process. The novel mycotoxin detoxification agent for feed can effectively remove pollution of multiple mycotoxins such as aflatoxin, zearalenone, T2 toxin, vomitoxin and the like in the feed raw materials and the feed of the corn, the grains and the like, and prevent various diseases of livestock and poultry because of eating the mycotoxin polluted feed. The mycotoxin detoxification agent has simple preparation process, stable and controllable quality, convenience in use and low price, meanwhile has the advantages of supplementing nutrients, improving the disease resistance of cultured animal bodies and avoiding adsorbing nutrient elements in the feed, and guarantees the health and safety of the cultured animals.

The invention discloses a composite blocking remover and a method for removing blockage of a compact sandstone reservoir pressing crack commissioning horizontal well in a composite manner. The composite blocking remover comprises a preposition liquid, a main treating fluid, an active blocking remover and a subsequent fluid. The preposition liquid is composed of organic acid, inorganic acid, a stabilizer, an oxidizing agent, a chelating agent, a corrosion inhibitor, polyol ether and water. The main treating fluid is composed of organic acid, inorganic acid, the stabilizer, the oxidizing agent, a fluorine carbon surfactant and water. The active blocking remover is composed of a zwitterionic surfactant, the stabilizer and water. The subsequent fluid is water. The composite blocking remover can remove the blockage of routine colloid, asphalt mass and inorganic solid phase particles, and can remove the damage of water blocking and crude oil emulsification by pertinency, and has the advantages of good slow performance, effectively preventing secondary deposition pollution such as the iron ion deposition and acid sludge generation, the horizontal well near-well and deep reservoir pollution can be effectively released, the oil well production power is recovered, and the recovery efficiency can be greatly increased.

The invention discloses an immobilized Bacillus having phosphate dissolving and heavy metal passivation functions and a preparation method and an application thereof, which belong to the technical field of cadmium pollution soil biological restoration. The immobilized Bacillus comprises biological carbon and Bacillus cereus B19, can be used for restoring the soil with severe cadmium pollution, and has better restoration effect. The composite microbe fertilizer contains the immobilized Bacillus, an organic fertilizer and an inorganic nutrient having the phosphate dissolving and heavy metal passivation functions. The composite microbe fertilizer has the advantages that cost is low, soil available nutrient content is increased, yield increase is achieved, the soil with cadmium pollution is effectively repaired, introduction of heavy metal cadmium in human body with crops can be effectively controlled, agricultural product safety is guaranteed; in addition, the composite microbe fertilizer cannot change a farmland utilization mode without secondary pollution, is conveniently used, and is economic and feasible.

The invention discloses a buoyancy type automatic sealing deodorization floor drain. The buoyancy type automatic sealing deodorization floor drain comprises a floor drain body and an opening and closing assembly, wherein the floor drain body is hollow to form a water drainage channel, and the opening and closing assembly can automatically open and close the water drainage channel through water buoyancy. The opening and closing assembly comprises a valve seat arranged in the floor drain body and a floating part capable of being matched with the valve seat in a vertically-floating mode to open and close the water drainage channel. When water flows into the water drainage channel in the floor drain body, the floating part can move upwards to be separated from the valve seat under the effect of the water buoyancy, the water drainage channel is opened to drain sewage, after the sewage is drained, no water exists in the water drainage channel, the floating part moves downwards to make contact with the valve seat under the effect of weight to achieve sealing fit, the water drainage channel is closed accordingly, and then the situation that odor in the water drainage channel escapes out of the floor drain body to contaminate indoor sanitation is avoided. The buoyancy type automatic sealing deodorization floor drain is good in sealing effect, and can effectively prevent insects and odorization, compared with a spring-structure automatic opening and closing device in an existing floor drain, the structure is simple, the service life is long, and the floor drain is convenient to install and clean.

The invention discloses sludge/mud environment-friendly type baking-free bricks. The sludge/mud environment-friendly type baking-free bricks are prepared from the following raw materials in percentageby weight: 30 percent to 60 percent of waste mud, 5 percent to 25 percent of rough sand, 5 percent to 25 percent of silicon aluminum calcium iron oxide, 2 percent to 20 percent of mountain flour, 2 percent to 20 percent of quicklime and 2 percent to 20 percent of gypsum, wherein the waste mud is sludge or/and mud; the silicon aluminum calcium iron oxide is one or a mixture of more of fly ash, fine coal slag, mineral slag powder and coal gangue. According to the sludge/mud environment-friendly type baking-free bricks disclosed by the invention, resource utilization of the sludge/mud can be realized; the raw material composition is simple and the cost is low; the product has the characteristics of high bending strength and compressive strength, good wearing resistance, strong freezing and thawing resisting capability and the like through the optimization of the raw material ratio; the leaching rate of heavy metal in the baking-free bricks is relatively low, and the baking-free bricks have no odor and are environmentally friendly and safe, so that large-scale batch production is easy to realize; the baking-free bricks can be applied to the fields of engineering construction includingmunicipal plaza pavement, sidewalk pavement, hydraulic engineering protection slopes and the like.

The invention discloses compound fertilizer taking silt or sludge as base fertilizer and a manufacturing method thereof. The method comprises the steps of: dehydrating and crushing the silt or sludge collected from a lake, a river, a pool, a swale, a sewer or a sewage treatment plant to obtain dry silt raw material or sludge raw material or mixed raw material of silt and sludge; weighting and putting 70-80 parts of silt raw material, 4-10 parts of nitrogen raw material, 4-10 parts of carbon raw material and 4-10 parts of potassium raw material in an agitator, adding 10-20 parts of water, and agitating to obtain the compound fertilizer raw material; molding the compound fertilizer raw material into particles; and drying the particles to obtain the compound fertilizer taking silt or sludge as base fertilizer. The compound fertilizer taking silt or sludge as base fertilizer not only has the advantage of low manufacturing cost, but also has the advantages of effectively and abundantly utilizing the silt or sludge waste as production raw material so as to turn waste into wealth, and effectively reducing the pollution caused by the silt or sludge to the environment.

The invention discloses a method for purifying a water body with heavy-metal pollution. The method comprises the following steps of: (1) putting scenedesmus quaclricauda in culture solution, placing a film-hanging carrier in the culture solutin, culturing under the conditions that the temperature is 20-25 DEG C and the light and dark ratio is 12h:12h, and forming a biological film of the scenedesmus quaclricauda which covers the film-hanging carrier basically and completely; and (2) contacting wastewater containing heavy metals and the biological film of the scenedesmus quaclricauda and fully reacting. The invention also discloses a device for purifying the water body with heavy-metal pollution. The device comprises a shell, scenedesmus quaclricauda columns positioned in the shell, and oxygen supplying equipment for supplying oxygen to the scenedesmus quaclricauda columns. The method and the device disclosed by the invention have the advantages that the biological film is obtained by the scenedesmus quaclricauda with easily-obtained algae seeds, the biological film of the scenedesmus quaclricauda is utilized for carrying out adsorption treatment on the wastewater containing the heavy metals, the specific surface area of the biological film is large, the absorption rate to the heavy metals is high, and the water body with heavy-metal pollution can be effectively purified.

The invention relates to an air purifier, especially highly effective to purify heavily polluted gases. The purifier comprises a power source, an inverter, an amplifier, a high tension generator, a voltage doubling circuit, a corona generator, a photoionization area, a draught fan, a speed change circuit, an isolation protection net, universal casters, and a housing. The purifier is characterized in that the stream theory of long-gap discharge is utilized,photoionization is generated from a 30mm discharge gap between positive and negative electrodes, low-impedance plasma (stream) between the positive and negative electrodes is connected; intensity of electric field is increased, and the stream can be turned into strip; photoionization members (plasma) can compose the large-area large-depth zonal purification unit. The purifier has the functions of cold sterilization, molecule decomposition, oxydative degradation, conversion of harmful matters and foul gases into the harmless; sterilization, deodorization and smoke elimination are achieved; all dusts smaller than PM2.5, causing dust haze, can be absorbed by the positive and negative electrodes in the ionization area, with the purification rate up to 100%; the 500mm<2> photoionization field consumes 77 watts only, so that environment protection and energy saving are achieved.

The invention belongs to the technical field of soil remediation, and particularly relates to a thermal-desorption sewage treatment system for organic contaminated soil. The system comprises a sludgetank as well as a regulating tank, a coagulating sedimentation tank, a Fenton sedimentation tank, a deep oxidation tower, a filter device and a clean water tank which are sequentially connected in thecirculating direction of the sewage; the inside of the coagulating sedimentation tank is sequentially divided into a coagulating reaction area and a coagulating sedimentation area, and the inside ofthe Fenton sedimentation tank is sequentially divided into a Fenton reaction area, a Fenton sedimentation area and a buffer area; a sludge outlet of the coagulating sedimentation area and a sludge outlet of the Fenton sedimentation area are communicated with the sludge tank. The invention further provides a thermal-desorption sewage treatment method for the organic contaminated soil. After being subjected to homogenizing and averaging treatment, thermal-desorption sewage is subjected to coagulation, Fenton reaction and deep oxidation treatment in sequence, filtered water enters the clean watertank for recovery or is discharged up to standard, and the sludge is separated by filter pressing. According to the thermal-desorption sewage treatment system and method for the organic contaminatedsoil, various kinds of organic matter can be effectively treated and no secondary pollution is produced.

The invention discloses a washing method for a reverse osmosis membrance. The method comprises the steps that the reverse osmosis membrance is placed in a washing box for standing, preimpregnation andcirculating pickling with an acid washing agent, and is subjected to circulating water washing, soaking, circular alkali washing, fungicide spraying and washing, and the method aims to solve the problems that sediments and the residual organic flocculant in liquid form an insoluble polymer so as to greatly affect the effect of reverse osmosis treatment.

The invention discloses an ecological restoration method for a steep lakeside zone of a polluted lake with shallow water type bottom mud. The method comprises the steps: ecological desilting is carried out on a selected lakeside zone, then removed bottom mud is used for reinforcing a lake embankment nearby, an ecological revetment structure is constructed according to 'code for design of levee project', land area plants, emergent aquatic plants, submerged plants and other plants are planted for phytoremediation, meanwhile, wave dissipation protection is set, the plants are protected, and dailymaintenance is kept. Ecological desilting and lakeside restoration are combined, near-shore bottom mud pollution of slope protection is degraded, sludge is disposed nearby, timber pile and natural revetment is implemented, the land area plants are planted to stabilize embankments, the emergent aquatic plants, submerged plants and other plants are planted to reduce pollution, water and soil conservation is carried out, a complete ecological community is formed, and lakeside zones are effectively restored.

The invention provides a fly ash treatment technology in a waste incineration process. The fly ash treatment technology comprises the following steps of conducting high-temperature heat treatment, magnetic separation metal treatment, washing for dichlorination, vacuum filtration and dehydration, suction filtration treatment, heavy metal precipitation, dilution and wastewater purification on fly ash. According to the fly ash treatment technology, by conducting high-temperature heat treatment on the fly ash, highly-toxic dioxin-like substances contained in the fly ash can be decomposed and purified to avoid the situation that the highly-toxic dioxin-like substances are discharged in air and cause environmental pollution; by conducting magnetic separation metal treatment on the fly ash, granular metal mixed in the fly ash can be recycled; by conducting aftertreatment on filter residues finally obtained after fly ash treatment, the rate of multipurpose utilization of the filter residues can be increased, and the filter residues can be used as rough fertilizer for secondary use; and by purifying the wastewater generated in the fly ash treatment process, secondary pollution caused by thewastewater can be reduced, it is ensured that no secondary pollutants are produced in the process of fly ash treatment, and environmental sustainability is achieved.

The invention provides a method for jointly restoring heavy metal contaminated soil through chemical passivation-microorganism. The method comprises the steps that the heavy metal contaminated soil is jointly restored by adding a passivator and functional bacteria into the heavy metal contaminated soil, and the functional bacteria are bacterial strains which are obtained by screening aboriginal bacteria of the heavy metal contaminated soil and have adsorption capacity and tolerance to heavy metal. The method of chemical passivation-microorganism joint restoring is simple, economical and safe, the heavy metal contaminated soil can be effectively restored, and the soil fertilizer efficiency can be improved while no new contaminator is introduced.

The invention belongs to the technical field of membrane separation, and relates to a membrane cleaning method in a membrane-method sugar manufacturing technology. The membrane cleaning method comprises the following steps: step (1) sequentially using deionized water, a sodium hydroxide solution, a mixed solution of sodium hydroxide and sodium hypochlorite and the deionized water to clean a clarification membrane; step (2) sequentially using the deionized water, a glucanase solution and the sodium hydroxide solution to clean a decolorizing membrane; and step (3) sequentially using the deionized water, the sodium hydroxide solution and the deionized water to clean a concentration membrane. The step (1) and the step (3) are not ordered. The membrane cleaning method in the membrane-method sugar manufacturing technology is customized for different pollution mechanisms of the clarification membrane, the decolorizing membrane and the concentration membrane, can effectively remove the membrane pollution, restores the membrane flux of each level, maintains the stable operation of a membrane-method cane sugar manufacturing system, and can reduce water consumption, discharge of wastewater and consumption of chemical reagents by recycling membrane cleaning waste liquid at all levels.

The invention relates to the technical field of microalgae, and in particular, relates to a method for treating pollution in a microalgae culture process. The method can effectively prevent and treat microalgae pollution, has no harm to microalgae, has no drug residues, and can improve the product quality of the microalgae. The method overcomes the problems in the prior art that chemicals have a killing effect on the microalgae, have drug residues and affect the quality of microalgae products when the chemicals are used for directly killing pollutants appearing in microalgae. The method for treating pollution in the microalgae culture process comprises the steps: step 1) inoculating a culture liquid with first microalgae, and culturing the first microalgae; step 2) detecting the culture liquid; and if pollutants are detected in the culture liquid, performing a step 3); and step 3) determining the type of pollutant species, and removing the pollutants by using a biological preventing and treating method.

The invention relates to the technical field of soil heavy metal pollution phytoremediation, and provides a method for simultaneous producing and repairing of mild cadmium contaminated soil. The method includes the steps of S1, successively sowing a variety of cadmium-rich plants with large plant height differences in the form of intercropping in soil with mild cadmium contamination according to seasons; S2, interplanting cucurbitaceae climbing herbaceous plants with low cadmium enrichment on the cadmium-rich plants, and picking at the time of fruit ripening; S3, timely conducting mowing and stubble remaining on the cadmium-rich plants, and removing all plants in the soil from roots between September and October; S4, detecting the cadmium content of the soil, if not qualified, repeating S1-S3 steps, carrying out the next batch of planting, and if qualified, stopping planting. The cadmium-enriched plants with high plant height differences are sown, the cucurbitaceae climbing herbaceousplants with the low cadmium enrichment is inter-planted thereon, and the above plants can effectively treat cadmium pollution in the soil due to the fact that there is no competition in the growth space, and can also bring economic income.

The invention relates to a method for treating sulfur dioxide flue gas by using alkaline waste residues and recovering tin-antimony metals and sodium sulfite crystals. The method comprises the following steps: crushing and dissolving the alkaline waste residues, performing filtration to obtain a NaOH, Na2SnO3 and Na3SbO4 mixed solution and filter residues, carrying out an absorption reaction on the mixed solution and SO2 contained in industrially discharged flue gas in an absorption device to make the SO2 content of the flue gas reach discharge standards and obtain a mixed slurry containing Sn(OH)4 and Sb(OH)5 solid precipitates and a Na2SO3 solution, and carrying out solid-liquid separation on the slurry to obtain Sn(OH)4 and Sb(OH)5 solid precipitates and the Na2SO3 solution; and addingthe filter residues and the Sn(OH)4 and Sb(OH)5 solid precipitates to reduced coal, carrying out high-temperature reduction smelting to obtain tin-antimony metals and smelting furnace slag, and further carrying out evaporative concentration and separation on the Na2SO3 solution to obtain the sodium sulfite crystals. The method has the advantages of short process flow, high recovery rate of the tin-bismuth metals, realization of treatment of wastes with wastes, and clean and environmentally-friendly production process.