51results about How to "Pollution" patented technology

The invention relates to an ecological restoration method for a city watercourse. The ecological restoration method for the city watercourse is characterized in that the polluted city watercourse is comprehensively restored with the combination of physical, biological and ecological technologies, the ecological theory is used for reference in the treatment process, the ecological idea is used as the guiding thought, a complex water ecosystem structure is constructed and restored, the original natural state of the watercourse is restored, the self-cleaning capacity of a river system is improved, the environment is beautified, and the local city microclimates are improved at the same time. The ecological restoration method mainly comprises the steps of (1) controlling a pollution source, (2) modifying the river bank, (3) optimizing the environment of the river bottom, (4) modifying the watercourse, (5) conducting aeration and oxygenation, (6) constructing an aquatic plant community, (7) constructing a fish and macrobenthos community, and (8) maintaining the system. The watercourse ecological system restored through the ecological restoration method has the certain anti-interference capacity, on the premise that a large amount of exogenous pollution is cut off, the certain-strength interference can be resisted, and the good ecological environmental effect is obtained. After one-time input, the better ecological benefit can be obtained only with a small number of maintenance costs.

The invention relates to a benthonic animal-algae-aquatic plant-fish based river water ecological environment self-remediation method. The method is to overcome problems of river water ecological environment remediation methods at present, namely short effect duration, high costs and easy generation of secondary pollution. The method includes 1) evaluating the degree of pollution of a river, 2) planting reed and seeding algae, 3) throwing in plankton and benthic mollusks, 4) planting submerged plants, 5) throwing in shrimps, herbivorous fishes, omnivore fishes and filter-feeding fishes, 6) throwing in carnivorous fishes, and 7) harvesting the reed and the submerged plants before the reed and the submerged plants die, catching the benthic mollusks and the shrimps, and catching the fishes after two years. The method is long in effect duration, low in cost and free of secondary pollution and is applied for the field of river water pollution remediation.

The present invention relates to an enhanced anti-caving drilling fluid for safely drilling in saline bed and caving ground. Said drilling fluid composition includes (by weight portion) 4-6 portions of bentonite, 0.3-0.4 portion of hydrolyzed polyacrylamide potassium salt, 1-1.2 portions of methyl polyacrylamide calcium salt; 1.5-2 portions of valchovite, 2-3 portions of sulfonated lignite, 2-4 portions of asphalt blocking agent, 6-8 portions of Kcl, 0.4 portion of CaO, 1-1.2 portions of organosilicon alcohol and 100 portions of water.

A drinking system includes a drinking bottle provided with an outflow opening, a storage tube, and a dose container. The storage tube holds a stock of additive for use in the dose container holding a dose of additive in the outflowing beverage when beverage is drunk from the drinking bottle. The storage tube and dose container are, as alternatives, receivable in the drinking bottle via the outflow opening.

The invention discloses a method for performing surface treatment on a material for boosting cell growth and resisting biological pollution, which comprises the following steps: firstly, performing activating treatment on a material surface, and performing surface self-assembly reaction; and then fixing amphoteric-ion molecules and polyethylene glycol molecules with the characteristics of resisting biological pollution and extracellular matrix proteins or albumen polypeptides for boosting cell growth on the material surface in turn, thereby obtaining a material with the characteristics of boosting cell growth and resisting biological pollution. By performing surface treatment on the material according to the method provided by the invention, the material surface is simultaneously endowed with the capabilities of resisting biological pollution and boosting cell growth. The method is applied to the fields of biological materials, tissue engineering, nanometer material research, and the like.

The invention relates to a long-acting biological organic-inorganic super-large-particle compound fertilizer and a preparation method thereof. The preparation method comprises the steps of: preparing a powdery bulk blended fertilizer by using a commercially-available organic fertilizer or decomposed livestock manure, bacillus polymyxa powder and a long-acting slow-release nitrogen phosphorus fertilizer as raw materials; adding a synergist A, an adsorbent B and an energy substance C into the powdery bulk blended fertilizer; and performing tabletting in a fertilizer extruding machine to prepare the large-particle biological organic-inorganic compound fertilizer in an extrusion state. The long-acting biological organic-inorganic super-large-particle compound fertilizer provided by the invention is prepared by mixing a long-acting compound fertilizer, which is obtained through a reaction of a formaldehyde solution, urea and potassium dihydrogen phosphate, with the commercially-available organic fertilizer and the bacillus powder according to a different proportion, and then extruding the mixture into particles, and is a fertilizer which is capable of not only improving physical and chemical properties of soil but also realizing slow release of nutrients and protecting microbial activity and is convenient to apply and accurate in quantification.

The invention discloses a simple method for fast extracting human fecal bacterium DNA. The simple method sequentially includes the following steps that hot-cold rupturing treatment is carried out on a human fecal sample to rupture cells; the DNA is captured through AMPure XP magnetic bead liquid; magnetic force adsorption of magnetic beads and a magnetic separation frame is used for removing impurities and purifying the DNA. According to the extracting method, as a physical method (liquid nitrogen freeze thawing) and magnetic bead purification are organically combined, one operator can extract about 100 samples at the same time within one hour, which has great significance in comprehensively and fast researching people group intestinal floras and related disease occurrence mechanisms.

The preparation process of red benzimidazolone pigment includes four steps of diazotization reaction of substituting aryl amine, the coupling reaction between diazotate and 5-[2'-hydroxy-3'-naphthylbenzoyl] amino benzimidazolone, pigment treatment, and pigment surface treatment. The present invention uses little organic solvent, and has less environmental pollution and low solvent recovering cost.

The invention discloses a silane treating agent and a preparation method thereof. The silane treating agent comprises, by weight, 2-5 parts of a silane coupling agent, 2-5 parts of phytic acid, 8-14 parts of nitrate, 4-7 parts of molybdate and 70-100 parts of water. The silane treating agent prepared through the method has the beneficial effects of being stable in performance and free of poison and pollution. After the silane treating agent prepared through the method is utilized for treating a metal workpiece, a film layer formed on the metal surface has the beneficial effects of being excellent in adhesive force, compact, uniform and low in polarization current density. The defects of existing metal surface pretreatment are overcome, and therefore the silane treating agent can be applied to metal surface pretreatment better.

The invention provides a nutrient material used for municipal engineering green planting soil and a preparation method and application. The nutrient material is prepared from, by weight, soil, peat soil, nitrogen-fixing bacteria, organic-matter-decomposing flora, fibrous frameworks, humic acid, trichoderma viride and nutrient solutions. The preparation method comprises the following specific steps: 1, using appropriate culture media for culturing various types of microbial flora respectively; 2, preparing the nutrient solutions; 3, adding the nutrient solutions to the soil, the peat soil, the fibrous frameworks and the humic acid of the corresponding matching ratio according to the matching ratio, and adding the organic-matter-decomposing flora, nitrogen-fixing bacteria thallus and trichoderma viride thallus. The invention further provides the application field of the nutrient material, and the nutrient material is mainly applied to engineering greening or plant plantation. By means of the nutrient material used for the municipal engineering green planting soil and the preparation method and application, the problems that a nutrient material cannot improve the soil porosity, and the nutrient material does not display good compatibility and friendly characteristics with other added nutrient substances as well are solved.

The name of the invention is waterproof board which is water resistant forever and its buckle; it belongs to roofing waterproof materials technology field. It resolves the problems of the life of prior waterproof materials is short caused by the heat and cold swell-shrink character and the subsidence movement of roofing and the easy aging of material. Its main characteristics are: a permanent water-resistant plate comprising of rectangular plane waterproof plate made by permeability material, the edge of the plane waterproof plate is equipped with downward concave buckle seat and concave groove; the buckle which connects the edges of the water-resistant plate comprises buckle face plate, the buckle face plate is equipped with two parallel pins below; the buckle which connects the four angles of water-resistant plate comprises surface plate, the lower angles of the face plate are equipped with four pins in right angle; the buckle which connects the angle and edge of water-resistant plate comprises buckle face plate, the lower of buckle face plate is equipped with three pins, two of them are parallel and vertical with the third pin. The invention is used for construction waterproofing mainly.

The invention discloses an environment-friendly brick for buildings, and a preparation method of the environment-friendly brick. The environment-friendly brick for buildings is prepared from the following components in parts by weight: 40 to 80 parts of coal ash, 20 to 35 parts of furnace ash, 10 to 22 parts of lime, 8 to 16 parts of waste road surface asphalt mixed material, 5 to 15 parts of steel material polishing waste residues, 10 to 30 parts of paper-making white mud, 10 to 20 parts of activated sludge dry powder, 15 to 30 parts of iron tailing sand, 5 to 15 parts of waste granite and 20 to 40 parts of water. Compared with the prior art, the environment-friendly brick for buildings mainly adopts industrial waste as raw materials, is favorable for reducing environmental pollution caused by the industrial waste, and can reuse the waste and save raw material resources.

The invention discloses cadmium-reducing biological modified ceramsite and a preparation method thereof, and the preparation method comprises the following steps: soaking ceramsite in a 1.5-2.5% glutaraldehyde solution, washing with water, sterilizing, and drying to obtain sterile ceramsite; preparing a bacterial suspension I of a cadmium-resistant functional strain with the concentration of more than or equal to 1*10 <8> CFU/mL, centrifuging the bacterial suspension I, discarding a supernate, and adding normal saline into a thallus precipitate to re-suspend the thallus to form a bacterial suspension II with the OD of 0.9-1.1; mixing the sterile ceramsite with the bacterial suspension II, oscillating and drying; mixing the dried ceramsite with the bacterial suspension II again, shaking, and drying; and obtaining the cadmium-reducing biological modified ceramsite. The method can be used for treating the cadmium pollution problem in the water body, and meanwhile has the potential of repairing the cadmium pollution problem in the soil.

The invention discloses a silk screen printing type multilocus enzyme electrode and a preparation method and application of the silk screen printing type multilocus enzyme electrode. The silk screen printing type multilocus enzyme electrode comprises a base electrode, wherein enzymes are fixed to multiple positions on the surface of the base electrode, the base electrode is a silk screen printing electrode, and the enzymes are oxidizing enzymes. By means of the enzyme electrode, osmium polymers are fixed to the four-position electrode through glutaraldehyde and BSA crosslinking by analyzing phenolic substances through the combination of various types of oxidizing enzymes after the osmium polymers are mixed with HRP and laccase, H2O2 is added for assistance, phenolic compounds which commonly and strongly react to the two enzymes are detected, and the good analysis capacity and the good anti-interference capacity are provided for the phenolic compounds. The preparation method is simple, low in cost and simple in operation process, and the electron transferring speed between electrons and the enzymes is high; the more beneficial online long-term real-time detection environment is provided; the detection sensitivity of a biosensor is improved, the detection range of the biosensor is widened, and the detection result can be quicker and more accurate.

The invention discloses a conducting UV wood coating and a preparation method thereof. The conducting UV wood coating is prepared from a preorder coating component and a follow-up coating component. The preorder coating component is a chitosan antibacterial gel and the follow-up coating component is prepared from the following components in percent by mass: an aqueous solution containing 15-20% unsaturated group polyether polyol, an aqueous solution containing 25-30% of unsaturated group polyester polyol, a closed isocyanate crosslinking agent, a defoamer, a vinyl triethoxy ethoxylsilane sealing agent, isopropyl myristate where 10% graphene is dissolved and a mixture extracted from cornu gorais and taking keratin and sterol as a main body. The follow-up coating component is then prepared by carrying out sealing with the vinyl triethoxy ethoxylsilane sealing agent in a saturated manner. The conducting UV wood coating is good in binding force with wood fibers, good in ultraviolet hardening effect, good in conductivity, high-temperature-resistant, wear-resistant and self-hydrophobic.

The invention relates to a lawn seed belt convenient for degradation. The lawn seed belt comprises an upper fluff pulp belt and a lower fluff pulp belt, wherein glue is sprayed on the lower surface ofthe upper fluff pulp belt in an S shape, glue is sprayed on the upper surface of the lower fluff pulp belt in an S shape, and glue of the upper fluff pulp belt and glue of the lower fluff pulp belt are staggered with each other up and down; a seed mixture is evenly distributed between the upper fluff pulp belt and the lower fluff pulp belt, and comprises lawn seeds, high molecular water-absorbingparticles and fertilizers; and the upper fluff pulp belt is provided with a plurality of grass outlet holes. The lawn seed belt provided by the invention has the advantages of high seed survival rate, easy degradation of the seed belt and safe transportation.

A closed cycle process for recovering and treating of waste water in paper-making features that all of the useful substances are physically and chemically recovered and fully used and the treated water takes part in closed cycle for reuse. Its advantages include less investment and operating cost and high return on investment. As compared with conventional chemical recovery process. Said process is only 1/8-1/15 of investment, 1/10-1/20 of operating cost, 1/10-1/15 of return years on investment.

The invention relates to a green synthetic Fe3O4-PdO nanocomposite material. A eucalyptus leaf extracted liquid is used as the reductant to reduce iron and palladium bimetallic ions simultaneously, and then calcination is carried out to obtain the Fe3O4-PdO nanocomposite material. The Fe3O4-PdO nanocomposite material prepared by the invention can be used as a material for arsenic pollution remediation in water.

The invention relates to the technical field of agricultural insecticides, in particular to a plant-derived biological composition, which contains alcohol extracts of potato stems and leaves, buttercups, and abamectin dregs. Application of plant-derived biological composition in the prevention and treatment of onion maggots. After many years of screening tests, the present invention finds that the botanical pesticides made of yam bean stems and leaves and ranunculus alcohol extracts and abamectin dregs to make granules have obvious effects on preventing and treating scallion maggots, and have a long lasting effect. There is no need to use chemical pesticides to prevent and control the whole growing season, and it has the effect of fertilizer, no pollution, no residue, the raw materials are very cheap and easy to get, and the market prospect is broad.