42results about How to "Reduce water purification costs" patented technology

The invention relates to a quartz sand filter. The quartz sand filter comprises a cylinder body, an upper seal head, a lower seal head, support legs, a support plate, water caps, a first filtering layer, a second filtering layer and a support layer, wherein the upper seal head is arranged above the cylinder body; the lower seal head is arranged under the cylinder body; the support legs are arranged at the bottom part of the cylinder body; the support plate is arranged under the interior of the cylinder body; the water caps are arranged above the support plate; the first filtering layer, the second filtering layer and the support layer are sequentially arranged above the water caps from top to bottom; a manhole and a viewing mirror are arranged in/at the upper half part of the cylinder body, and a discharging port is arranged in the lower part of the cylinder body; a raw water inlet is arranged in the center of the upper seal head, and is connected with an upper water distribution device, and a water production outlet is arranged in the center of the lower seal head; a support pipe is arranged under the support plate, is positioned between the support plate and the lower seal head, and is used for bearing the pressure produced by filtering material on the support plate, and reinforcing the load of the support plate; the water caps are uniformly distributed on the support plate; screw nuts are pre-welded at circular holes under the support plate, so as to facilitate the quick installation of the water caps. The quartz sand filter has the advantages that the structure is simple, the operation is convenient, the water distribution is uniform, the channeling is avoided, the service cycle is long, and the water purifying effect is good.

A pleasure-boat type movable water quality improving apparatus is composed of a pleasure-boat, an air supplying unit in said boat, and a living things carrier under said boat. Said carrier consists of the cylindrical fillers composed of mass transfer bodies, the pile loop bodies as planting carrier and fixing rings, and two fixing sleeve pipes arranged at both ends of fillers.

The invention discloses a low-cost coal chemical wastewater deep treatment CoSD reaction tower. The low-cost coal chemical wastewater deep treatment CoSD reaction tower comprises a reaction tower body, wherein a sewage inlet is formed in the upper end of the reaction tower body; a vertical ozone tube is arranged on the bottom surface in the reaction tower body; an ozone booster pump is arranged on the lower surface of the reaction tower body; a catalyst can be put into the reaction tower body through a first material feeding opening, so that reaction can be more complete; ozone can be pumped to the reaction tower body through the ozone booster pump, and a gas can be released into the reaction tower body through the ozone tube and an aeration tube, so that the reaction can be more sufficient; unreacted ozone in the reaction tower body can be pumped into a separation tower through a sucking pump, and waste residue in sewage can be separated through the separation tower, so that water can be further purified. The low-cost coal chemical wastewater deep treatment CoSD reaction tower disclosed by the invention is simple in structure and simple and convenient in operation; the ozone can be fully utilized, generation of secondary pollution can be avoided, and the water purifying cost is saved.

The invention belongs to the technical field of water treatment and discloses a suspension type distillation device based on a nanomaterial and solar energy. The distillation device comprises an uncovered water tank, a water tank cover, nano cloth and a water collection component, wherein a liquid storage tank is arranged below the uncovered water tank; the water tank cover is arranged on the uncovered water tank; part of the nano cloth is fit with the lower side of the water tank cover; part of the nano cloth is immersed in liquid in the liquid storage tank; the water collection component comprises a condensate tank; the condensate tank is an open hollow structure and is suspended on the liquid in the liquid storage tank; and a capillary structure is arranged on the surface on one side, facing towards the water tank cover, of the condensate tank. The device can achieve heat exchange of steam and water to be evaporated on the basis that a solar energy resource is made full use of; condensate water is absorbed and transported quickly by a capillary action at the same time; the scattering of sunlight by the condensate water is effectively avoided; and a utilization ratio of the solarenergy is further increased on the basis that the efficiency of water purification treatment is significantly improved.

The invention discloses an environment-friendly polyaluminum chloride water purifying agent, which comprises the following components by weight: 30-42 parts of polyaluminum chloride, 9-15 parts of activated carbon, 13-20 parts of aluminum sulfate, 6-9 parts of ferric chloride, 8-11 parts of ferric sulfate, 4-7 parts of bentonite, 15-18 parts of a shell filter material, 1-3 parts of paracoccus aminovorans powder, and 0.9-1.5 parts of nitrobacteria powder. The purified water quality is superior to that purified by an aluminum sulfate flocculant, and the water purification cost is about 20% lowerthan that adopting aluminum sulfate flocculant; the consumption of alkalinity in the water is lower than that of various inorganic flocculants, therefore no or a small amount of alkaline agent can beapplied. And the polyaluminum chloride water purifying agent has a wide PH application range. Only two main raw materials are used in production, the raw material variety is simplified, the technological process is shortened, and the reaction is accelerated. The product is clear, the quality and performance are improved, the basicity is increased by about 10% than that of products adopting aluminum hydroxide as the raw material, and the production cost is reduced by 20% or more, and compared with products adopting bauxite as the raw material, the waste residue is reduced by 20-30%, thus beingconducive to environmental control.

The invention provides a method for degrading organic wastewater, which is characterized by comprising the following steps: (1) carrying out electrooxidation pretreatment on industrial heavy metal organic wastewater to obtain a solution A; wherein the electrooxidation pretreatment is carried out by using a high-performance oxidizer, and a cathode plate and an anode plate used by the high-performance oxidizer are boron-doped diamond film composite electrode plates; (2) adjusting the pH value of the solution A obtained in the step (1), and feeding the solution A into a membrane concentration system for filtration and concentration to obtain a solution B; and (3) feeding the solution B obtained in the step (2) into a triple-effect evaporative crystallization system for evaporative concentration, cooling for crystallization, separating solids, and recovering crystalline salt to obtain degraded organic wastewater. The method can effectively realize degradation of organic wastewater COD andremoval of heavy metal ions, reduces the wastewater treatment cost, improves the purity and the recycling value of the heavy metal crystalline salt, and has a high salt removal rate and a high wastewater recovery rate. The method is simple and controllable in technical parameters and high in practicability.

The invention relates to a method for regenerating waste seawater generated during the giant freshwater prawn culturing process, and belongs to the field of the energy-saving and discharge reduction and water area ecology protection technology. The method is characterized in that the method comprises five steps, namely wastewater filtration, settlement, oxidation and disinfection, water storage purification and magnetization. The processes of filtration, settlement, water storage and water quality activation are separately treated; the combined process that the waste seawater can automatically flow or be closed can be achieved in each functional area; water consumption energy resources are not required; and the production process is simplified, thereby being favor of greatly reducing the wastewater processing cost and improving the investment benefit; the water processing quality and the seed culturing effect of the regenerating seawater can be ensured by applying the technologies such as agglutination and settlement, oxidation, water quality activation and the like; the working platform can be used for processing the seed culturing wastewater containing antibiotic; the regenerating seawater after being processed has no toxicity and public hazard to aquatic animals and humans; and the invention has low cost and is suitable for popularization and application in domestic giant freshwater prawn seed culturing yards.

The invention discloses a mechanical apparatus for preparing poly aluminium chloride, and the apparatus belongs to the field of chemical engineering. The mechanical apparatus comprises a roasting furnace, a stirring tank, a filter, a concentration kettle and a spray dryer, and is characterized in that the roasting furnace is provided with a concentrate kaolin inlet, and a first conveyer is arranged between the roasting furnace and the stirring tank; the stirring tank is provided with an industrial-grade hydrochloric acid inlet, a water inlet, a calcium aluminate powder inlet and a first impurity outlet, and a first slurry pump and a pipeline are arranged between the stirring tank and the filter; the filter is provided with a second impurity outlet, and a second slurry pump and a pipeline are arranged between the filter and the concentration kettle; and a third slurry pump and a pipeline are arranged between the concentration kettle and the spray dryer, and the spray dryer is provided with a finished-product outlet.

The invention discloses a water purifying agent, which consists of the following components by weight: 30-55 parts of bleaching powder, 15-20 parts of potassium trichloride, 10-13 parts of potassium sulfite, 5-10 parts of potassium hydrogen sulfite, and 5-15 parts of sodium sulfite. The water purifying agent provided by the invention can be used for purification treatment of both domestic drinking water and industrial water, and has the advantages of reliable performance, convenient use, low water purification cost and good purification effect.

The invention relates to the technical field of water purification, and discloses RO concentrated water recycling equipment and method.The RO concentrated water recycling equipment comprises a filtering and softening system and a reverse osmosis system, a soft water storage unit is connected between the filtering and softening system and the reverse osmosis system, and the reverse osmosis system is connected with an RO concentrated water recycling unit and a pure water utilization unit; the RO concentrated water recovery unit is connected with a use unit; a soft water supplementing pipe is connected between the soft water storage unit and the RO concentrated water recovery unit, and a control mechanism for controlling the soft water supplementing pipe to be connected or disconnected is arranged on the RO concentrated water recovery unit. The RO concentrated water is recycled by arranging the RO concentrated water recycling unit, so that the problems of serious water resource waste and high water purification cost in the water purification process of water purification equipment in the prior art are solved.

The invention provides a manual water purification device which comprises a top cover, a bottom cover, an outer barrel hermetically connected with the top cover and the bottom cover respectively, an inner barrel which is arranged in the outer barrel and is hermetically connected with the top cover and the bottom cover respectively, an ultrafiltration barrel surrounding the inner barrel, and a filter barrel surrounding the ultrafiltration barrel, wherein a water inlet for the inflowing of water to be purified and a water outlet for the outflowing of purified water are formed in the top cover; the outer barrel is made from an elastic material. According to the manual water purification device, a filtration type water purification method can be originally combined with an ultrafiltration type water purification method, natural water can be purified and used at any time, the purification time is short, the water purification cost is low, and the outlet water effect is good; in addition, the manual water purification device is easy to operate and convenient to carry, and can meet the needs of travelers in purifying the natural water at any time outdoors.

The invention discloses a method for constructing a post-dam water purifying overflow dam, which comprises a gate dam. The gate dam divides a river into an impounding section and a purified water section; the water level of the impounding section is at least three meters higher than the water level of the purified water section; the purified water section is provided with a trapezoidal berm; a microbial water purifying layer is laid on the a trapezoidal berm; the trapezoidal berm is provided with an impounding ditch; one end of the impounding ditch is communicated to the impounding section upstream of the gate dam by a diversion canal; the other end of the impounding ditch is provided with a water retaining dam; and the impounding ditches can discharge water upstream of the gate dam to a surface of the berm, so that the water enters the purified water section downstream of the gate dam after being purified by the microbial water purifying layer. The method for constructing post-dam water purifying overflow dam adopts a distribution that microorganisms adhere to matrices in a gradient so as to significantly improve the water purification efficiency, and to save the water purification cost. In a later stage, matrices at the bottom of the berm can be replaced with matrices in an upper part to improve the service life of the water purification system.