55results about How to "Will not affect water quality" patented technology

The invention discloses a wolframine beneficiation wastewater treatment process, and belongs to the field of industrial wastewater treatment. The method comprises the following steps of A, adding lime into wolframine beneficiation wastewater, so that the pH value is regulated to 11 to 12; B, performing solid-liquid separation after destabilization precipitation; C, discharging solid into a tailing pond, putting inlet and outlet water into a first-stage reaction tank, and adding sodium carbonate; D, putting into a second-stage reaction tank, adding coagulant aids PAM into the second-stage reaction tank to take flocculation reaction with the PAM; E, performing self flowing to put into a precipitation pool, and discharging the bottom layer concentration sewage into the tailing pond; F, putting supernatant fluid into a micro-flocculation filter, using 5-percent outlet water as reverse flushing water to be discharged into the tailing pond; G, adding concentrated sulfuric acid into 95-percent outlet water to regulate the pH value to 6 to 9; H, putting the outlet water into a micro eddy current reaction pool, and using the 5-percent outlet water as flushing water to be discharged into the tailing pond; I, eliminating carbon dioxide from 95-percent outlet water through a degassing tower, so that the water can be reused for wolframine beneficiation or can be directly discharged. The process has the advantage that the wolframine beneficiation wastewater reuse rate is improved.

The invention discloses an application of a polymer additive M4228 in preparing copolypropylene tubing. A dosage of the additive accounts for 0.5% to 1% of the mass of foundation powder of the copolypropylene tubing. The copolypropylene tubing prepared through a method provided in the invention can satisfy mechanical performances required by tubing, bear a comparative inner static pressure, has a good dimensional stability under the pressure, and has a substantially improved service life. In long-term hydraulic strength testing, the service life of the tubing prepared through adding the M4228 is far beyond 50 years in nominal bore at a temperature of 20 DEG C; an oxidation induction period of the tubing prepared by adding the M4228 is more than 80 min; and the hygienic property is improved. The additive M4228 self is nontoxic and odorless, does not influence the product appearance after being added into the tubing, allows the product to have no peculiar smell, and does not get into water to influence the quality of water because the additive M4228 has a good water extraction resistance.

The invention discloses preparation and application of a sulfur-based autotrophic and heterotrophic denitrification nitrogen removal biological filler. According to the invention, the number of micropores and silicon hydroxyl groups on the surface of ceramsite is increased through alkali etching; then the surface of the alkali-modified ceramsite is activated by utilizing high-activity disulfur dichloride; and the disulfur dichloride can be chemically bonded with hydroxyl functional groups on the surface of the ceramsite, so sulfur is loaded onto the surface of the ceramsite to form Si-O-S andcross-linking is performed so as to form a stable net-shaped structure. The sulfur-based autotrophic and heterotrophic denitrification nitrogen removal biological filler provided by the invention canrealize coupling of sulfur-based autotrophic and heterotrophic denitrification, is beneficial for the attached growth of microorganisms, reduces the addition of carbon sources, improves population richness, further increases nitrogen removal efficiency and stabilizes effluent quality.

The invention discloses a stainless steel water meter case and a production process thereof. The production process comprise a case main body production process, a water inlet end production process and a water outlet end production process; According to the production process, the case main body, the water inlet end and the water outlet end are subjected to processes such as dismantling, laser cutting, welding, stamping and extrusion forming, so that the stainless steel water meter case is not only capable of oxidation resistance, corrosion resistance and long-term use and beautiful in appearance, but also environment-friendly, non-polluting and without influence on water quality. Meanwhile, according to the production process, the whole water meter case is dismantled into a plurality ofparts which have no large curved surfaces and can be mutually connected just by laser spot welding, the manufacturing difficulty and the manufacturing cost are greatly reduced, and the product qualification rate is improved; and a valve and a valve rod are further arranged in the water meter shell, and therefore internal water flow can be automatically controlled by the valve and the valve rod.

The invention relates to a sludge drying device and a sludge drying method. The sludge drying device comprises a heat pump, a drying device and an air adjusting device, wherein process water from a wastewater treatment system is fed into the heat pump; sludge is fed into the drying device to be dried; the air adjusting device is connected to the drying device to form a closed system and used for air for drying the sludge to circularly flow in the closed system. Saturated evaporation moisture generated in the sludge drying process enters the air adjusting device from the drying device, the airadjusting device dehumidifies and dries the saturated evaporation moisture, the dehumidified and dried air is heated by the heat transferring medium which is discharged from an air cooler of the heatpump into hot air, and then the hot air is fed into the drying device to dry the sludge.

The invention relates to a sewage treatment plant rectangular secondary sedimentation tank effluent weir automatic cleaning device. Two floating bodies are respectively formed on two sides of the vehicle body. The inner cavity of each floating body is hollow. Two sides, which are close to the rear end, of the vehicle body are both provided with an impeller. Two sides of the front end of the vehicle body are respectively provided with a No.1 brush and a No.2 brush, and a No.3 brush and a No.4 brush are arranged between the No.1 brush and the No.2 brush. The rectangular secondary sedimentation tank effluent weir automatic cleaning device has the advantages that the structure is simple, the weight is light, the maintenance is convenient, the device can be handled by the operator, the labor strength for cleaning the secondary sedimentation tank effluent weir is reduced, the work efficiency is improved, and the safety is guaranteed. The automatic cleaning device will not destroy the original structure and influence the operation of secondary sedimentation tank effluent weir. Although the area of sewage treatment plant secondary sedimentation tank is large, the provided cleaning device can quickly finish the cleaning work.

The invention relates to a stem flow intercepting method comprising the following steps of: firstly forming a waterproof layer, winding plastic cloth on the smooth position of a stem with a tree bark removed, then winding a folded elastic membrane on the upper end of the smooth stem and outside the plastic cloth, and then tightening by using iron wires; secondly downwards rolling the upper edge of the plastic cloth to wrap the elastic membrane, and tightening by using the iron wires; thirdly forming a waterproof plastic bib, upwards rolling the lower edge of the plastic cloth so that the smooth stem with the tree bark removed is wrapped in the rolled lower edge, and tightening by using the iron wires; and finally fixing a conduit for guiding water flows on the lower edge of the formed waterproof plastic bib so that the water flows are guided to a measuring device. The stem flow intercepting method can be used for intercepting 95-98 percent of stem flows, is convenient to implement without any influence on water quality and meets the requirements for water quality measurement of the water yield of the stem flows.

The invention discloses a water-heat simultaneous transfer system based on reverse osmosis seawater desalination and nuclear energy heat supply. The water-heat simultaneous transfer system is characterized in that a primary fresh water preheating device, a secondary reverse osmosis device, a dosing and mineralizing device, a fresh water storage device and a secondary heating device are arranged ona nuclear energy heat source side, namely a nuclear energy heat supply system in a nuclear power plant; a heat extraction device, a direct drinking water device and a fresh water mixing storage device are arranged on a load side, namely a user side, and the outlet end of the fresh water mixing device is connected with a fresh water user.

The invention provides a water-saving faucet. A first water pipe is arranged in a faucet, a water inlet pipe is arranged at one end of the first water pipe, a lower ceramic sealing sheet is arranged at one end of the water inlet pipe, an upper ceramic sealing sheet is arranged at one end of the lower ceramic sealing sheet, a water outlet is formed in one end of the upper ceramic sealing piece, anda shower head is arranged at one end of the water outlet; a second water pipe is arranged inside the faucet, one end of the second water pipe is connected with the water inlet pipe, a water storage tank is made of a transparent material, a water storage tank is arranged inside the water storage tank, a pull rod is arranged inside the water storage tank, and a guide wire is arranged at one end ofthe pull rod; and a third water pipe is arranged at one end of the water storage tank, a valve is arranged inside the third water pipe, one end of the valve is connected with the guide wire, and one end of the valve is connected with the second water pipe. According to the faucet, water dropping and water leakage can be effectively prevented, the discharge of water is reduced, and the waste of water resources is avoided; and the situation of water outage due to power off can be avoided, the whole structure is simple, the use is convenient, and the faucet is suitable for being used at home.

The invention discloses a honeycomb-type water bottom shelter for aquatic animals and an application method. The water bottom shelter is of a long-tubular structure with the orthohexagonal section, and the long-tubular structure comprises an opening end and a closing end; the tube walls are of engaged structures capable of allowing barrier bodies to be connected to form honeycomb-type arrays, and the tube walls at the other ends are of anti-sliding structures preventing sliding. When the honeycomb-type water bottom shelter is used, the multiple barrier bodies are sequentially connected together from bottom to top to form a honeycomb-type composite structure and put into a culturing water body, and then to-be-cultured aquatic animals are put and fed. According to the honeycomb-type water bottom shelter for the aquatic animals and the application method, space is reasonably used through the network stacked structure, the more stable impact-resistant effect can be generated, position moving caused by impacting of the barrier bodies of water flow can be reduced, and stable nests are provided for aquatic animals, wherein inhabiting of aquatic animals is not prone to interference of the external environment and biology through the nests; valuable aquatic water body space is saved, and meanwhile culturing operating and management are also convenient.

The invention discloses a dual-mode drinking machine based on solar energy and electric heating, which is characterized in that water is heated through the heat of a solar water heater, and is output through the dual-mode drinking machine. The main research purpose of the invention is to introduce a new energy source in the process of heating drinking water so as to reduce the dependence of the drinking water heating process on the traditional chemical energy sources and then to realize energy saving and consumption reduction. The dual-mode drinking machine comprises a solar heating device, an electric heating device and a drinking machine body, wherein the solar heating device comprises a pipeline and a heat exchanger; the heat exchanger is arranged in a drinking water storage tank of the drinking machine body; the heat exchanger is connected with the solar water heater through the pipeline; the electric heating device comprises a heater; the heater is positioned in the drinking water storage tank; the heater is connected with a controller. The dual-mode drinking machine based on the solar energy and electric heating has the main meanings that the drinking water is heated by utilization of the excess energy of the solar water heater, and the water quality of the drinking water cannot be affected in the whole process, so that a lot of chemical resources are saved, and the dependence of people on the chemical resources is reduced.

The invention relates to the technical field of water purification, and discloses a high-efficiency PAP composite filter element. The high-efficiency PAP composite filter element comprises outer-layerPP cotton which is rolled into a barrel, middle-layer activated carbon and inner-layer PP cotton; the filter precision of the outer-layer PP cotton is greater than that of the inner-layer PP cotton,and the middle-layer activated carbon is formed by pressing a plurality of carbon fiber stacks. The filter element achieves a tertiary filter effect, and can be compatible to existing water purifier filter bottles in markets, the number of pipes and the number of filter bottles in a water purifier are reduced, the full filter element only needs to be changed once, and water quality cannot be affected later.

The invention discloses a multi-effect staged first rain storage pond. The multi-effect staged first rain storage pond comprises a flow dividing device, an artificial wetland and a sewage treatment plant, wherein the flow dividing device is used for collecting first rain and dividing the first rain into a storage pond group, and the artificial wetland is used for treating the first rain; the flow dividing device comprises a rainwater pipe network group which communicates with the artificial wetland and a first sewage pipe network which communicates with the artificial wetland and the sewage treatment plant; and the storage pond group comprises a plurality of water storage pools which are arranged on the rainwater pipe network group at intervals along the water flow direction, a plurality of first rain inlet pipes which are provided with second gates and correspondingly communicate with the water storage pools and the rainwater pipe network group respectively and a plurality of second sewage pipe networks which correspondingly communicate with the water storage pools and the first sewage pipe network respectively, and an integrated pump station is arranged in any water storage pool. According to the first rain storage pond, rainwater with different concentration gradients is stored in different water storage pools, and the rainwater in the water storage pools is not interfered with one another, so that the water quality of an integrally collected water body cannot be influenced by the water quality deterioration, and the sewage treatment cost is greatly reduced.

The invention provides a preparation method of a fluorosilicone film for treating high-salt wastewater. The preparation method comprises the following steps: (I) preparing a fluorosilicone polymer; (II) modifying nano-boron fibers; and (3) preparing the film. The invention further discloses the fluorosilicone film prepared by virtue of the preparation method. The preparation method disclosed by the invention is simple and feasible, low in cost, equipment dependence and requirements on reaction conditions and suitable for industrial production, and the raw materials are easily available. The prepared fluorosilicone film has the advantages that the preparation process is simple and easy in operation, the preparation cost is low, the mechanical property is excellent, the corrosion resistanceis good, the water flux and the salt removal rate are high, and the pollution resistance is good.