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

The present invention is method of in-situ purifying pollutant river water with combined floating bed plant and biomembrane technology. The float bed has float bed plant in the upper part, stuffing of polyolefin and polyamide suspended in water, and hollowed water-air exchange area in the middle part favorable to natural oxygen restoring of water. The bionic stuffing can intercept great amount of suspended matter in water and has biomembrane to eliminate organic matter, nitride and phosphate from water. The optimal float bed plant can remove nutritious pollutant from water. The present invention can stereo purify pollutant water and the float bed of timber and other natural material has long service life and facilitate plant replacement.

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.

The invention relates to a solvent water treatment system for 2-chloropropionylchloride. The solvent water treatment system comprises a solvent water pipeline, a steam pipeline, a condensed water preheating device, a desolvation treatment device, a desolvation evaporating device, a solvent collecting device and a condensed water collecting device, wherein the condensed water preheating device is provided with a steam inlet, a solvent water inlet, a solvent water outlet and a condensed water outlet; the solvent water pipeline is fixedly connected with the solvent water inlet of the condensed water preheating device; the steam pipeline is fixedly connected with the steam inlet of the condensed water preheating device; the desolvation treatment device comprises two inlets and two outlets, wherein one of the inlets is fixedly connected with the steam pipeline; the other inlet is fixedly connected with the solvent water outlet of the condensed water preheating device; one of the outlets is fixedly connected with the solvent collecting device and the other outlet is fixedly connected with the inlet of the desolvation evaporation device; and the condensed water collecting device is fixedly connected with the condensed water outlet of the condensed water preheating device.

The invention relates to a direct drinking water production method. The direct drinking water production method comprises that tap water is filtered by an active carbon filter core; the filtered water enters into one or more capacitive deionization unit in series; the deionized water is subjected to ultraviolet sterilization; and the sterilized water is discharged. The tap water is filtered by the active carbon filter core so that a small amount of suspended solids and organic matters in the tap water are removed; the filtered tap water enters into the one or more capacitive deionization unit in series and harmful ions in the filtered tap water are removed under the action of the electric field; and the product water flows through a transparent plastic or glass pipe, is subjected to ultraviolet sterilization and then is discharged. The discharged product water can be drunk directly. The direct drinking water production method has a low material cost, a low operation cost and good tap water purifying effects and especially has good heavy metal ion removal effects. Through short circuit, the electric field disappears or is supplied with counter-currents so that the adsorbed ions are separated from double electric layers of an electrode and the electrode material is regenerated. The direct drinking water production method does not consume chemical agents such as acids, alkalis and salts and is a green production method.

The invention discloses a high-chromaticity / high-turbidity wastewater treatment material, comprising the following materials according to parts by weight: 40-60 parts of a composite coagulant, 30-50 parts of a composite flocculant, 3-7 parts of magnesium sulfate, 5-10 parts of carboxyl methyl cellulose, 2-6 parts of porous hydroxyapatite powder, 4-8 parts of expanded vermiculite powder, and 10-15 parts of polyamino polyether methylene phosphonate (PAPEMP); the composite coagulant is made from polysilicate ferric chloride, polyethyleneimine-sodium xanthogenate and polysulfate ferric chloride according to a weight ratio of 2-3:1:1-2; the composite flocculant is made from anionic polyacrylamide and polyepichlorohydrin according to a weight ratio of 1-3:1; the invention also discloses usage of the high-chromaticity / high-turbidity wastewater treatment material. The treatment material provided herein is useful in treating high-chromaticity / high-turbidity wastewater difficult to treat and has good settling effect, and emitted water meets the standard for emission.