157results about How to "Improve water treatment effect" patented technology

The invention discloses a method for preparing quaternary amine salt ion adsorbent by using a plant with high cellulose content. Straw stalks with high cellulose content, epichlorohydrin and tri-ethylamine are taken as raw materials, ethylene diamine, diethylene triamine pentacetic acid (DTPA) or triethylenetetramine, etc are used as crosslinking agent to prepare the adsorbent under the condition of existence of N, N-dimethyl formamide. The method has the advantages of simple process, low cost, economic and practical, reproducible, etc. The adsorbent prepared by the method has the advantages of high liveweight growth rate, low secondary pollution, high stability, sound adsorption effect, wide application scope, etc; and the adsorbent can be extensively applied to the treatment of eutrophication of waters.

The invention relates to a preparation method for cationic-type polyacrylamide reverse micro emulsion. The appearance of the micro emulsion is transparent or translucent low-viscosity micro latex and the mean particle diameter is 50 to 80 nm. The micro emulsion can be placed for a long time without delaminating. After routine extraction with alcohol and acetone, the micro emulsion becomes white powdered solids with the intrinsic viscosity of 200-600 ml/g. The preparation method is to take acrylamide and diallyl dimethyl ammonium chloride as comonomer, apply compounded emulsifying agent and redox initiation system, add sodium formate as reagent and additive in polymerization, and then apply the method of stepwise polymerization to the reverse micro emulsion polymerization. The cationic-type polyacrylamide of the invention has the advantages of moderate molecular weight, stable emulsion, rapid dissolution and narrow particle size distribution, thus being able to be widely applied to fields such as oil exploitation, paper making, textile dying, daily chemical industry and industrial water treatment.

An organic high-molecular flocculant with high flocculating effect for decoloring the printing and dyeing sewage in textile industry is prepared from epoxy chloropropane, dimethylamine and 1,6-hexyldiamine as cross-linking agent. Its preparing process is also disclosed.

A composite flocculant in the form of brown liquid is a homo-polymer poly-iron-dimethyl dially ammonium chloride consisting of iron (5.5-8.0 Wt%) and poly-dimethyldially ammonium chloride (3-16 Wt%). Its preparing process featuring the addition of PDMDAAC to PFC solution is also disclosed. Its advantages are high flocculating effect and stability and low cost.

The invention discloses a scoop waterwheel water treatment device which comprises a drop chute, a water collecting tank, water striking baffles, a rotating shaft, water drums, filler cages and turntables, wherein the rotating shaft is supported on a bracket I arranged at two ends of the rotating shaft; two turntables parallel to each other are arranged on the rotating shaft; multiple filler cages are arranged between the two turntables; the filler cages are filled with fillers used for treating the sewage; multiple water drums are uniformly distributed on the two turntables; the axes of the water drums are inclined relative to an axis of the rotating shaft; the length direction of the water collecting tank is perpendicular to the axis of the rotating shaft; a notch of the water collecting tank corresponds to a water outlet of each water drum; a water outlet of the water collecting tank corresponds to a notch of the drop chute; multiple water striking baffles are uniformly distributed on the two turntables; a water outlet of the drop chute corresponds to the plates surface of each water striking baffle rotating to the lower part of the drop chute. A scoop waterwheel technology is coupled with a biological turntable technology, and the filler cages are filled with the filler particles, so that reoxygenation by water body and microbe growth in the biological turntable technology are intensified, and a water treatment effect is enhanced.

The invention relates to an adjustable air-floating and precipitating switching solid-liquid separating device. In the adjustable air-floating and precipitating switching solid-liquid separating device, a raw water inlet is arranged at the lower end of one side of a body, the body is internally provided with a dissolved air releaser, a baffle plate, an air-floating and precipitating inclined board assembly, a perforated lattice wall, a precipitate water-collecting weir, a precipitate water-collecting tank and an air-floating water-collecting tank, and a slag-scraping machine is arranged above the body. The adjustable air-floating and precipitating switching solid-liquid separating device is characterized in that an air-floating contact region is arranged around the dissolved air releaser, the position where the air-floating and precipitating inclined board assembly is located is a solid-liquid separating region, an air-floating water-collecting pipe arranged below the air-floating and precipitating inclined board assembly is communicated with the air-floating water-collecting tank, an inclined angle regulating mechanism of the air-floating and precipitating inclined board assembly is arranged on the body, can realize the regulation of an inclined angle of 60-90 DEG and the regulation of an inclined board gap, and can be used in an equidirectional flow, a reverse flow and a lateral flow. The adjustable air-floating and precipitating switching solid-liquid separating device integrates air floatation and precipitation, has multiple functions, and properly can realize the switching operation of the air floatation and the precipitation solid and liquid separation according to the condition of the water quality of the raw water. The invention has the advantages of simple structure, small occupation area, wide application range, good treatment effect, and the like.

The invention relates to the water treatment industry, in particular to the aspects of depth-type filtration and purification of drinking water. The invention discloses a water purifier with a cross-flow type filter element, comprising an engine base with interfaces of an inlet pipeline and an outlet pipeline and a fine-level sealing filter element with multiple water ports, wherein the filter element is movably connected with a filter element fastening device of the engine base, and all the water ports of the filter element are arranged on the end faces at the same side of a shell and simultaneously and movably butted with the interfaces of the inlet pipeline and the outlet pipeline to from a filter channel; pipelines of a water inlet and a front water port of the filter element are led to both ends of a cross-flow structure at a water inlet side of a filter layer and communicated with each other, the water inlet is connected with a water inlet channel A, and the front water port is communicated with a front purification channel D; and a water outlet arranged at the water outlet end of the filter layer is connected with a water outlet channel B. The invention has the advantages of simple product structure, stable quality, high production efficiency, strong product water treatment capacity, high grade and easy replacement of the filter element and is beneficial to the popularization and the generalization of the purifier.

The invention provides a method for treating an eutrophication water body by utilizing an artificial marsh and a facility thereof. The method comprises the following steps that: an eutrophication water body to be treated is sent to an upflow type coarse filtering bed by a pumping and collecting pipeline; the upflow type coarse filtering bed carries out removing treatment to suspended substances and algae substances in the eutrophication water body; the water body treated by the upflow type coarse filtering bed is evenly distributed to a vertical flow ecological filtering bed by a water feeding and distributing system and subject to secondary biochemical treatment by the vertical flow ecological filtering bed; effluent water is recycled and reused; deposited sludge in the upflow type coarse filtering bed is discharged to a sludge drying filtering bed for stabilization treatment; and a wet sludge filtrate reflows to the upflow type coarse filtering bed for aftertreatment. The proposal of the invention adopts a method of combining the upflow type coarse filtering bed, the vertical flow ecological filtering bed and the sludge drying filtering bed to treat the eutrophication water body, can not only effectively remove the suspended substances and the algae substances but also solve the problem of treating blue algae sludge with low cost, has the characteristics of good algae removing effect and large water treatment amount and is widely suitable for the long-term water purification of the eutrophication water body.

The invention belongs to an environment technical sphere, concretely relates to a postposition waste water disposal method of an atalytic iron electrolytic cell. When suspended solid of waste water SS>=100mg/L or pH values of waste water >=9.0, or both, during the process of biochemical pretreatment to waste water, setting the cell before the biochemical basin, making waste water pass through the biochemical basin, a sedimentation basin, the cell, coagulating sedimentation basin, making water quality of outlet water reach emission standard, using the invention to deal with waste water, scaling phenomena of iron filtering material in the cell are avoided totally, so that water treatment effet of electrolytic process in the cell is insured. It is effective that electrolytic process is taken as the pretreatment process of non-biodegradation and organic waste water in atalytic iron, and the invention makes the electrolytic process have more application area and pushes performance of a project.

A foam containing 30 to 95% by weight of a polyolefin-based resin and 5 to 70% by weight of a hydrophilizing agent composed of a cellulose-based powder, the surface of the foam being in a melt fractured state.

A magneto-electric dialysis process for desalinating seawater, preparing salt from seawater and desalting industrial water is characterized by that on the basis is existing electric dialysis equipment, a static magnetic field is additionally used to directionally shift the cations and anions in flowing solution. Its apparatus is composed of a casing with different water inlets and outlets and electrodes, a group of cationic exchange membranes and anionic exchange membranes, which are alternatively arranged between anode and cathode, and a permanent magnet attached to each wall of the casing. Its advantages are high throughput, less electric consumption and not scaling.

The invention relates to a double-internal circulating water treatment device capable of combining photocatalysis and aerobe, which comprises a reaction tube, wherein a three-phase separator and a stripping tube are arranged along the axial direction of the reaction tube from top to bottom; the top of the reaction tube is provided with an air outlet pipe which is connected with the three-phase separator; the tube wall at the upper part of the reaction tube is provided with a water outlet; the bottom of the reaction tube is provided with a water inlet pipe opposite to the bottom end of the stripping tube; the bottom of the stripping tube is provided with an aeration disc in a surrounding way; the aeration disc is provided with a micropore, and sewage can flow down through the micropore; the reaction tube is divided into a depression area and a recirculation area by the aeration disc; the stripping tube is internally provided with an ultraviolet light source and titanium dioxide light particles; and aerobic active sludge is filled in the depression area of the reaction tube. The invention also relates to a method for treating the sewage by using the water treatment device. According to the invention, a photocatalysis technology and a double-internal circulating structure are adopted, thus not only improving the water treatment effect, but also achieving the aims of saving resource and reducing the maintenance cost.

The present invention provides a membrane distillation apparatus that comprises an evaporation part comprising a liquid phase part 1 in which water to be treated flows, a gas phase part 1, and a hydrophobic porous membrane that separates the liquid phase part 1 and the gas phase part 1, a condensation part comprising a liquid phase part 2 in which cooling water flows, a gas phase part 2, and a cooling member that separates the liquid phase part 2 and the gas phase part 2, and a gas phase part 3 connecting the gas phase part 1 with the gas phase part 2, wherein the pressure of the gas phase parts 1 to 3 is 1 kPa or higher and the saturated steam pressure of water at the temperature of water to be treated or lower.

The invention provides a culture water quality regulating and controlling method of a penaeus vannamei boone freshwater pond. The culture water quality regulating and controlling method comprises the following steps in sequence: (1) carrying out anaerobic nitrification; (2) carrying out aerobic nitrification; (3) purifying photosynthetic bacteria; (4) carrying out microalgae cultivation and purification. Water pumped out from the freshwater pond for culturing penaeus vannamei boone is subjected to the anaerobic nitrification, the aerobic nitrification, the photosynthetic bacterium purification and the microalgae cultivation and purification in sequence, and then the water is reflowed back to the freshwater pond for culturing penaeus vannamei boone. According to the culture water quality regulating and controlling method, organic matters in the pond water can be decomposed into small molecular substances and the small molecular substances are cultured and absorbed by the photosynthetic bacteria and mixotrophic microalgae, and are converted into a microalgae organism; the treated and qualified water and cultured beneficial microalgae are discharged into the pond for cyclic utilization; after the beneficial microalgae enter the pond, population advantage is formed and a culture biological environment is improved; the water quality treatment effect is good, and a whole water treatment process does not utilize a culture water body and normal growth of the penaeus vannamei boone is not influenced; the method is high in operability and low in operation cost, and is safe and reliable to the cultured penaeus vannamei boone.

The invention discloses a pre-treatment system for kitchen waste water. The system is characterized by comprising an oil separating settling pond, an adjusting pool and a demulsifying, coagulating, air-floating and deslagging device, wherein a waste fermenting wastewater inlet pipe is arranged at one end of the oil separating settling pond while the other end of the oil separating settling pond is connected with the adjusting pool through a water outlet pipe, and the oil separating settling pond is internally provided with an oil slick removing device; one end of the adjusting pool is a water inlet end connected with a water outlet pipe of the oil separating settling pond while the other end of the adjusting pool is a water outlet end which is connected with the demulsifying, coagulating, air-floating and deslagging device through a lifting pump and a water outlet lifting pipeline; a temperature probe and a water outlet temperature regulating device are further arranged at the water outlet end of the adjusting pool. The system disclosed by the invention is designed for particularity of kitchen waste water components and can efficiently and quickly realize pre-treatments, such as deoiling, adjusting and oil slick cleaning, of kitchen waste water, so that the treated sewage can be suitable for subsequent conventional sewage treatment steps, thereby alleviating the demand on subsequent sewage treatment process and improving the final treatment effect of kitchen waste water.

The invention discloses a coastal shallow wetland construction method for hard landing river routes. The method comprises the steps that a site is selected on the two sides of a hard landing river route, poles are struck on the selected site, so that the pole and the river coast form a wetland unit, rock blocks are piled on one side of the river route near the struck poles, combined fillings are laid on the inner side of the bed body of the wetland unit, wetland plants are planted on the laid combined fillings, and the coastal shallow wetland is constructed. According to the construction method, the characteristics of large amount of microorganisms, dense biofilm, strong water treatment ability and strong adaptability of the combined fillings are utilized, an optimized combination of the wetland plants is adopted, the entrapment ability of the wetland to pollutants is strengthened, the purification effect of the nitrogen and phosphorus in water is increased, so that the overall biological system operates highly efficiently to finally form a stabilized and sustainably usable system, and the river water purification ability of the system is increased.

The invention discloses a combined three-dimensional floating bed which comprises a three-dimensional floating bed framework formed by moso bamboos, wherein the upper end of the three-dimensional floating bed framework is wound by a steel wire to form a grid water purification plant supporting part; a fish net is laid on the water purification plant supporting part; a water purification plant is planted on the fish net; a grid filler suspending part which is opposite to the water purification plant is also arranged on the three-dimensional floating bed framework at an interval; the top of bamboo filler stringed by using a center rope is fixed on the filler suspending part; a bearing object is connected to the bottom of the bamboo filler; a cage net is arranged between the grid water purification plant supporting part and the filler suspending part; aquatic animals are bred in the cage net in a scattering manner. According to the combined three-dimensional floating bed disclosed by the invention, the purification effect for the water quality of a biological floating bed is greatly improved; the combined three-dimensional floating bed can be suitable for large-area popularization and application.

The invention discloses a solar rural domestic sewage trickling filtration system and a use method thereof. The system comprises a grid adjusting tank, a trickling filter and a constructed wetland, and collected rural domestic sewage is purified step by step. Compared with the prior art, the system has the advantages that a storage battery supplies energy by the aid of a solar panel, energy sources are saved, running cost is reduced, the structure is simple, pumice stone fillers are arranged in the trickling filter, COD (chemical oxygen demand), ammonia nitrogen and total nitrogen and total phosphorus removal rate is high, water treatment effects are good, oxygen is supplied for the trickling filter by natural ventilation, an aerator is omitted, investment cost is reduced, enhanced phosphorus removal can be realized by modified limestone ceramsites in a constructed wetland treatment area, nitrogen and phosphorus adsorption effects are remarkable, and the whole project is simple in structure, convenient in construction, stable in running and low in running cost.

The invention relates to a purification method of river wastewater comprehensive treatment, relates to the field of ecological restoration treatment, and aims to solve the problem of solving river wastewater purification and establishment of self purification restoration ability. The high performance coagulating sedimentation pretreatment technology and strengthened coupling membrane bioreactor technology are used for river wastewater comprehensive treatment, river wastewater with poor water quality and serious suspended solids pollution can be pretreated by the high performance coagulating sedimentation technology, the effluent is clear and transparent, the effect is quick, by use of the strengthened coupling membrane bioreactor technology, the river wastewater treatment effect is good, operation is stable, occupation of land is small, cost is low, operation cost is low, layout is flexible, and the method helps to establish and improve the river ecological restoration capacity.

The invention discloses a method for preparing a porous starch microsphere loaded potassium ferrate sewage treatment complexing agent. The porous starch microsphere loaded potassium ferrate sewage treatment complexing agent comprises the following components in percentage by mass: 50-70 percent of porous starch microsphere loaded potassium ferrate complex, 20-40 percent of polymeric ferric sulfate and 10-20 percent of diatomite, wherein the porous starch microsphere loaded potassium ferrate complex is a complex prepared by dissolving potassium ferrate in an aqueous solution of KOH with the pH of 12, adding porous starch microspheres for complexing and adsorbing. According to the novel water treatment complexing agent, a slow release effect on the oxidizing ability of the potassium ferrate is realized, and the sewage treatment capacity of the potassium ferrate is improved. In addition, due to addition of the polymeric ferric sulfate and diatomite, the complexing and adsorbing capacity of the complexing agent can be further improved, and the sewage treatment effect is improved.