57results about How to "To achieve the purpose of purifying water" patented technology

The invention relates to a method and a device for purifying combined-flow artificial floating island water bodies. The device is provided with an artificial floating island frame; particle filling areas (6) are arranged in the artificial floating island frame; tightly accumulated particle fillers (6a) are filled in the particle filling areas; the particle filling areas are distributed at the lower part of the artificial floating island frame in a dispersed manner; sparse fillers (7a) with good overflowing property are arranged between the dispersed particle filling areas (6c) to form a sparse filling area (7) in which the flow is obviously higher than the osmosis flow in the particle filling areas; the particle filling areas are distributed at the upper part of the artificial floating island frame in a whole area or in sub-area to form an upper layer particle filling area on which humidogene emergent aquatic plants can be planted. In the invention, different filling areas are arranged to form combined flow of coexistence of porous media seepage and space continuity flow, thus fully purifying water bodies under the actions of physics, chemistry, plants and microorganisms and the like, and achieving the high effects of nitrogen and phosphorus removal by adopting the invention to process eutrophic surface water bodies, such as rivers and lakes and the like.

A laminar material for cleaning the anion-polluted water by removing the anions (F ions, arsenous radicals, or arsenic radicals) is prepared through proportionally dissolving Mg (or Zn) source and Al source in water, dissolving alkali and anions in water, quickly mixing them, stirring for 48-144 hr, pump filtering, water washing and baking to obtain white powder.

The invention relates to permeable reactive barrier filler, and belongs to the technical field of underground water pollution control. The filler is prepared from the following raw materials in percentage by weight: 30-40 percent of steel slag powder and 60-70 percent of limestone powder; and the steel slag powder and the limestone powder are mixed, granulated and dried to obtain the filler. The limestone and steel slag serving as raw materials of the filler have rich resources and low prices, and the preparation process is simple and has relatively low cost. The filler in a barrier can be used for purifying pollutants in water when the polluted underground water passes through the permeable reactive barrier, and various metal ions in the water can be effectively adsorbed.

The invention provides a denitrification and algae-removing micro-biological bacterium agent and a preparation method thereof. The denitrification and algae-removing micro-biological bacterium agent provided by the invention is prepared from nitrifying bacteria, nitrite bacteria, denitrifying bacteria, algicidal bacteria and photosynthetic bacteria; the content of the total viable count is not lower than 1.0*10<10>cfu/g. The content of the nitrifying bacteria and the nitrite bacteria accounts for 20 to 30 percent of the total viable count; the content of the denitrifying bacteria accounts for20 to 30 percent of the total viable count; the content of the algicidal bacteria accounts for 30 to 50 percent of the total viable count; the content of the photosynthetic bacteria accounts for 5 to10 percent of the total viable count. The denitrification and algae-removing micro-biological bacterium agent is prepared by mixing various microorganisms according to different ratios and has high viable count; the denitrification and algae-removing micro-biological bacterium agent can be used for biological remediation of a lake and reservoir water body and purification of a eutrophic culture water body and is especially suitable for treating water of a high-algae and high-ammonia-nitrogen micro-polluted water source; the removing effect on pollutants is remarkably better than the removing effect of a single strain; the denitrification and algae-removing micro-biological bacterium agent has the advantages of strong environmental adaptability, no secondary risks, high denitrification andalgae-removing efficiency and the like and belongs to an environment-friendly type micro-biological bacterium agent.

The invention belongs to the field of polymer composite materials, and discloses a polyacrylonitrile/cellulose acetate-silver/silver bromide/silver metavanadate composite fiber membrane and a preparation method and application thereof. The fibrous membrane is prepared by the following method: a, preparing silver metavanadate, b, preparing a silver/silver bromide/silver metavanadate composite photocatalyst, and c, preparing a polyacrylonitrile/cellulose acetate-silver/silver bromide/silver metavanadate electrostatic spinning solution, and preparing the nanofiber membrane through an electrostatic spinning technology. The fiber membrane is used as a carrier of the photocatalyst to realize recycling of the photocatalyst, and is expected to be better applied in the future.

The invention relates to a method for purifying a super great amount of water, which comprises the following steps: step I, the target water is selected; step II, the reference water depth(D1) is determined; when the actual depth of the target water is 10-50 meters, the reference water depth is the actual depth; when the target water depth is more than 50 meters, the reference water depth(D1) is 50 meters; step III, a purifying device, an air water-raising tunnel, is arranged in the target waters, and the tunnel body length (L1) of the air water-raising tunnel is 30 percent-50 percent of the reference water depth(D1) of the target water; the submerged depth of the tunnel mouth (D2) of the air water-raising tunnel is 40 percent-60 percent of the tunnel body length (D1); step IV, the air is input into a pressure chamber of the air water-raising tunnel and the air pressure(P1) of an air compressor is 150 percent-200 percent of water pressure in the pressure chamber. The invention can realize convection of an upper water layer and a lower water layer as well as realize the whole circulation, thus effectively facilitating dissolved oxygen quantity in the whole waters, damaging suspension state of algae and inhibiting the growth of the algae so as to purify the water.

The invention relates to an ecological shelter type eutrophic water treatment method. The ecological shelter type eutrophic water treatment method includes the steps of (1), investigating a water body ecological system and determining disadvantageous communities; (2), establishing a sheltering space in a water body, protecting or multiplying the disadvantageous biological communities in the sheltering space, and diffusing outwards after abundance is increased, wherein organisms coexisting with the biological communities in the sheltering space can be put in the sheltering space. The ecological shelter type eutrophic water treatment method can enable the whole food chain in the water body to work stably and efficiently, and surplus products in the water body can flow and be concentrated to large animal bodies according to the food chain of phytoplanktons, zooplanktons and large animals, so that the water body can be purified.

The invention relates a water purification cup used for single soldier, comprising cup body and bowl cover. The cup body is made by water pump storehouse in which there is hand pump and filtration storehouse, the top of which there is composite filter element, the lower which there is three-way valve and the bottom of which there is over pin. In water pump storehouse there are water absorption tube, one-way valve and sand head. The intake port of hand pump is connected with water absorption tube; the water absorption tube is connected with one-way valve; the one-way valve is connected with sand head. The water outlet 1 at the lower filtration storehouse is connected with back outlet conduit of three-way valve and the water outlet 2 at the bottom of filtration storehouse is connected front outlet conduit of three-way valve. The cup is convenient to use and carry.

A treating agent of coking wastewater relates to a chemical agent of water processing, and aims to solve problems of relatively low total cyanogen removal rate of organic pollutants and relatively high cost of raw materials by using existing treating agents of coking wastewater to treat the wastewater. The agent is composed of polymeric ferric sulfate, aluminum sulfate, ferric chloride, and a water treating additive, and the polymeric ferric sulfate, the aluminum sulfate, the ferric chloride, and the water treating additive is in a weight part ratio of (28-32) : (62-68): (4-6): (0.4-0.6). The agent is used for purifying treatment of the coking wastewater.

The invention discloses a method and breeding sewage treatment system for treating breeding sewage through pulverized fuel ash. The breeding sewage treatment system for treating the breeding sewage through the pulverized fuel ash comprises a feces collection pond, a solid-liquid separation device, a slurrying tank, an adsorption treatment device, a sterilization device and a sludge collection pond. The adsorption treatment device comprises a first treatment tank, a second treatment tank, a third treatment tank, a fourth treatment tank and a fifth treatment tank which are connected in sequence.The breeding sewage enters the adsorption treatment device to be subjected to adsorption treatment with pulverized fuel ash slurry, pores inside the pulverized fuel ash are rich, the specific area islarge, the capability of adsorbing and flocculating pollutants is high, decoloration and deodorization can be effectively achieved, and organic matter, heavy metal ions, bacteria and other microorganisms, suspending colloid impurities and the like in water are removed; water is purified, secondary utilization of solid waste is achieved, the sewage treatment cost is lowered, after the breeding sewage is subjected to five stages of adsorption treatment, the COD value and chromaticity in the sewage can be effectively lowered, the effluent can be recycled, and the use quantity of water resourcesis reduced.

The invention relates to a distilled water preparation technology field, concretely a production device for preparing distilled water by an ion exchange technology, comprising: a sand filtration cylinder, an activated carbon filter, an ultraviolet sterilization device, a water inlet pump, a distilled water machine and a distilled water storage cylinder, and further comprising a water softener, an ion exchanger, a 5mum fine filter and a 1mum fine filter, wherein the sand filtration cylinder, the water softener, the ion exchanger, the activated carbon filter, the 5mum fine filter, the 1mum fine filter, the ultraviolet sterilization device, the water inlet pump, the distilled water machine and the distilled water storage cylinder are connected in order; and regenerants are 30% hydrochloric acid and a 30% of regenerant diluted from 99% sheet-shaped solid sodium hydroxide with water. The device provided by the invention can effectively remove pollutants in water and guarantees the water yield of the distilled water machine.

The invention relates to the technical field of photocatalytic degradation and in particular relates to a method for rapidly removing aromatic N-alkyl dyestuff in dyestuff sewage. According to the method provided by the invention, a certain amount of a chloroauric acid (HAuCl4) solution is added into the dyestuff sewage and the aromatic N-alkyl dyestuff is rapidly removed by utilizing a photocatalyst under the irradiation of visible light.