31results about How to "Reduce purification load" patented technology

The invention belongs to the field of aquaculture, and particularly relates to distribution of an environment-friendly aquaculture farm, which includes a fish culture area, a river crab culture area and a tail water purification area from the upstream to the downstream. Tail water from the fish culture area is drained to the river crab culture area, the tail water from the river crab culture area is drained to the tail water purification area, and water from an outlet of the tail water purification area is then diverted into the fish culture area. The water in the river crab culture area can also be diverted into the fish culture area directly, and the water in the fish culture area can also be diverted into a primary purification tank in the tail water purification area directly. By using the distribution, the area of the tail water purification area can be reduced, the quality of river crabs can be improved, and recycling of culture tail water and nutrient pollutant can be achieved.

The invention is a kind of dust catching and smoke clarifying device which uses clarifier to form foam layer. It has foam clarifier, there's sprayer, upper and nether net board in the barrel. The foam room is between the two boards. The smoke inlet and outlet of foam clarifier are set on the upper and nether part. The dust outlet is set on the bottom of the barrel and connects with dust gatheringbox. There's an axis in the barrel which connects with the axis of the electromotor. The axis in the foam room connects some vanes; there's circular water box and clarifier box by the side of the barrel.

The invention discloses a method for preparing lithium carbonate by extracting lithium from lepidolite by adopting two-stage chloridizing roasting and an alkali liquor leaching method. The method disclosed by the invention comprises the following steps: (1) levigating the lepidolite and calcium chloride, adding the levigated lepidolite and calcium chloride into ammonium chloride solution, uniformly blending and pelletizing, so as to obtain green balls; (2) performing first-stage roasting on the green balls obtained in step (1) at the temperature of 150-300 DEG C and performing second-stage roasting on the green balls at the temperature of 500-800 DEG C, so as to obtain clinkers; (3) leaching the clinkers obtained in step (2) with water, and filtering to obtain leaching solution; (4) addingcarbonate solution into the leaching solution obtained in step (3), stirring and filtering to obtain mother solution and filter residues, and collecting the filter residues, so as to obtain the lithium carbonate. In the method disclosed by the invention, all the steps are cooperated, and a process of preparing the lithium carbonate by extracting the lithium from the lepidolite is environmentallyfriendly, low in energy consumption, low in cost and high in extracting efficiency. Therefore, the method disclosed by the invention has a broad industrial application prospect.

A pure oxygen direct combustion system using a liquid metal according to the present invention comprises: a reactor for receiving a liquid metal; a heat exchanger, connected to the bottom of the reactor, for exchanging heat for the liquid metal; a circulation pump, connected to the heat exchanger, for circulating the incoming liquid metal; a nozzle, connected to the circulation pump and disposed on the reactor; a reduction unit, connected to the circulation pump, for performing a reduction for the oxidized liquid metal; and a separation unit, connected to the reactor and the reduction unit, wherein the particles of the liquid metal injected from the nozzle are subjected to sensible heat from the gas generated from the reactor, heat-exchanged by the heat exchanger and regenerated by the reduction unit, and then supplied back to the reactor.

The invention relates to an organic waste gas biological purification system and method. The system comprises a gas inlet pipe, a dust treatment device, a drying filter, a microbial filler filter tower, a biological liquid spray pump, a first spray device, a biofilm pool transfer water tank and a biofilm tank culture unit. The dust treatment device comprises a cyclone spray purification tower, a slag separation tank, a filler spray purification tower and a circulating water pump. The biofilm tank culture unit comprises a filtrate collection tank, a filtrate lifting pump, a biological exhaust fan, an MBBR biofilm tank and an oxygen supply fan. The system can effectively purify different sizes of dust particles in organic waste gas and dry them, reduce the biological purification load of thesubsequent microbial filler filter tower, and improve the purification effect. The nutrient solution in the MBBR biofilm tank is recycled so that the utilization rate of the nutrient solution is improved, the regeneration rate and activity of the flora in the MBBR biofilm tank are improved, the sustainability of the organism is improved and the overall investment operation cost is reduced.

The invention provides an ecological restoration system suitable for hard revetments of high-flow-rate polluted rivers. The system comprises an upstream permeable wall, a plant area and a downstream permeable wall, wherein the upstream permeable wall is connected with the plant area through an iron wire net, the plant area is connected with the downstream permeable wall through the iron wire net,bio-balls are arranged in the downstream permeable wall, and microorganisms are attached to the bio-balls; incoming water flows into the plant area at a lower flow rate after being dissipated and adsorbed by the upstream permeable wall, is purified by plants, then flows into the downstream permeable wall, is degraded by the microorganisms attached to the bio-balls and arranged in the downstream permeable wall and flows out of the system. The system has the advantages as follows: 1) energy dissipation can be effectively performed on high-flow-rate water, and impurities can be filtered and adsorbed; 3) sustainable ecological restoration can be performed on water; 4) the bio-balls are arranged in the downstream permeable wall, and the purification capacity is improved; 5) the erosion effect of the water on the revetments is weakened; 6) the overall process device of the system is made of an environment-friendly lightweight material, and the whole device is convenient to install, replace and maintain.

The invention discloses a method and a device for recycling waste circuit boards through ion liquid, and belongs to the technical field of solid waste resource development and utilization. The methodcomprises the steps of prilling the waste circuit boards, then mixing the waste circuit board particles and the magnetic ion liquid, heating the mixture, meanwhile, applying voltage on the mixture through an inert electrode or/and applying a magnetic field on the mixture through a magnetic induction loop, carrying out catalytic pyrolysis on the mixture at 200 to 500 DEG C, collecting a gas-phase product, and condensation recycling; and separating solid-phase and liquid-phase products, recycling a liquid phase, and magnetically separating a solid phase. According to the method and the device for recycling the waste circuit boards through the ion liquid provided by the invention, the ion liquid with a high catalytic performance is utilized, electricity or/and magnetism is/are additionally added for producing an electromagnetic coupling liquid phase catalysis effect on an organic matter base plate, the pyrolysis temperature is low, the micromolecule substance yield is high, a catalyst canbe recycled, and a pyrolysis three-phase product is high-value utilized.

The invention relates to a landfill leachate treatment system. The system comprises a garbage storage area, a liquid collection tank, a first sedimentation tank, an air flotation machine, a second sedimentation tank, a filtering device, an ammonia nitrogen stripping tower, a degassing tower and a clean water tank which are arranged in sequence. According to the invention, suspended impurities in landfill leachate are removed by utilizing the air flotation machine; fine impurities in a water body are removed through the filtering device; ammonia gas in the water body is removed through the ammonia nitrogen stripping tower; and finally, carbon dioxide in the water body is removed through the degassing tower, so purified water with good water quality is finally obtained. The whole treatment system is low in investment cost, small in occupied area, good in effluent quality and suitable for large-scale application and popularization.

The invention discloses an anti-haze heat dissipation type solar street lamp, and relates to the technical field of street lamps, the anti-haze heat dissipation type solar street lamp comprises a lamppost, a lamp post is arranged at the upper part of the lamp post, an LED lamp is mounted on the lamp post, an inner cavity of the lamp post naturally forms an air outlet area, a purification area, anair inlet area and a pollution discharge area from top to bottom, a plurality of air outlet holes are formed in the side wall of the air outlet area, a fan, a filtering assembly, a spraying assemblyand a steel wire mesh layer are sequentially arranged in the purification area from top to bottom, the filtering assembly comprises an activated carbon layer and two grating plates arranged on the upper face and the lower face of the activated carbon layer respectively, the spraying assembly comprises a spraying pipe and a plurality of spraying heads installed on the lower side face of the spraying pipe, the two ends of the spraying pipe penetrate through the lamp pole wall, one end of the spraying pipe is connected with a circulating water tank through a first water pump, and the other end penetrates through a heat dissipation area of the lamp and then is connected to the circulating water tank, a plurality of air inlet holes are formed in the side wall of the air inlet area, and the bottom end of the blowdown area is connected with a water outlet pipe. The street lamp can be cooled, and haze can be removed at the same time.

The invention provides a multivalent group B meningococcal protein vaccine. The multivalent group B meningococcal protein vaccine is a multivalent combined vaccine comprising outer menbrane vesicle (OMV) proteins of group B meningococcus strain CMCC29356, strain CMCC29361, strain xrsw341215 having preservation number of CGMCC No.8982 and strain xrsw210902 having preservation number of CGMCC No.8981, and optionally comprises a medicinal excipient and/or an adjuvant. The multivalent group B meningococcal protein vaccine has wide cross protection antibody titers for prevention of group B epidemic cerebrospinal meningitis around the world, and has good cross protection effects on group A and group C epidemic cerebrospinal meningitis. The invention provides a whole production technology of the multivalent group B meningococcal protein vaccine. The production technology is suitable for large scale production. A research result shows that the multivalent group B meningococcal protein vaccine has good immunogenicity, reliable safety and stable immunization endurance.

The invention belongs to the technical field of radioactive waste treatment, and particularly discloses a system and method for treating radioactive waste through plasma high-temperature pyrolysis melting, and the system comprises a plasma high-temperature melting furnace, a plasma torch communicated with the melting furnace, a feeding device and a combustible gas supplementary combustion device. The air pump and the two-stage dust removal device are communicated with the combustion device, the nitric oxide removal device is communicated with the combustion device and the two-stage dust removal device, the heat exchange cooling device is communicated with the dust removal device, and the induced draft fan and the chimney are communicated with the heat exchange cooling device. The method comprises the steps that after radioactive waste is fed, the plasma torch heats and melts the waste in the melting furnace to generate radioactive waste gas and a glass melting solidified body, tail gas generated by combustion is subjected to nitrogen oxide removal, two-stage dust removal, heat exchange cooling, deacidification, demisting, cooling and purification, and then the tail gas is discharged. The pyrolysis efficiency of radioactive waste can be improved, the tail gas purification treatment load is reduced, the tail gas emission quality is improved, and a stable glass melting solidified body is generated.

The present invention is related to a separating agent for the purification of human insulin, ensuring that human insulin can be recovered in high yield when isolating human insulin from a solution containing human insulin and a specific insulin under specific liquid chromatography separation conditions by using the separating agent.

The invention relates to a power plant industrial wastewater treatment device, which comprises an anaerobic tank, a water inlet pipe is arranged on the outer surface, close to the upper portion of theleft side, of the anaerobic tank, an anoxic tank is arranged on the outer surface, close to the right side, of the water inlet pipe, and an oxygen discharging pipeline is arranged in the middle, close to the upper side, of the outer surface of the anoxic tank; an aerobic tank is arranged on the outer surface, close to the right side, of the anoxic tank, and a secondary sedimentation tank is arranged on the outer surface, close to the right side, of the aerobic tank. According to the wastewater treatment device, an activated carbon plate and a biological nano-membrane plate can be convenientlycleaned, internal components of the device can be flushed without disassembly, the cleaning process of the internal components of the device is simplified, convenience is brought to a user, the purification effect of the device in the secondary sedimentation process is kept in the optimal state, the sewage is subjected to double purification processes of nitrogen and phosphorus removal, so that the operation steps of subsequent sewage treatment procedures are reduced.