91 results about "Bio filtration" patented technology

The application relates to the technical field of garden engineering, and discloses a garden rainwater collection and purification treatment device based on multistage filtration, which comprises a support, a purification tank is fixedly connected to the top of the support, a biological filtration assembly for biodegradation and purification of rainwater is further arranged in the purification tank, and a sedimentation tank for rainwater collection is further arranged at the top of the purification tank. Compressed air is released into the cylinder through the aeration disc, the closed structure of the cylinder restricts the bubbles from diffusing in disorder, the screw thread flow guide groove in the cylinder guides the bubbles to spiral upward, the rising bubble flow impacts the broken paddle at the bottom of the shaft support to rotate, the large bubbles are broken into micro-bubbles through shearing to increase the specific surface area, the bubbles are efficiently utilized, the problem that the bubbles and the water body are not fully contacted and the dissolved oxygen is insufficient is solved, and the water quality requirement of the garden water is met.

The invention relates to the technical field of garden engineering, and discloses a garden rainwater collection and purification treatment device based on multi-stage filtration, the garden rainwater collection and purification treatment device based on multi-stage filtration comprises a support, and the top of the support is fixedly connected with a purification box; a biological filtering assembly used for biodegrading and purifying rainwater is further arranged in the purifying box, and a settling box used for collecting the rainwater is further arranged on the top of the purifying box. Compressed air is released by the aeration disc and then enters the cylinder body, a closed structure restrains bubbles to avoid disordered diffusion, a threaded flow guide groove in the cylinder body guides the bubbles to spirally rise, rising bubble flow impacts crushing blades at the bottom of a shaft bracket to rotate, large bubbles are crushed into micro bubbles through the shearing action to increase the specific surface area, and efficient utilization of the bubbles is achieved. The problems of insufficient contact between bubbles and water and insufficient dissolved oxygen are solved, and the water quality requirement of garden water is met.

The pure membrane MBBR sewage treatment system comprises an anoxic denitrification zone, an anaerobic ammonia oxidation zone, an aerobic oxidation zone, a high-density sedimentation zone, an MBBR biological filtration zone, a backwashing water tank and an equipment room, the anoxic denitrification region is used for carrying out amination reaction, organic matter hydrolysis reaction and denitrification reaction on the sewage and nitrate and nitrite in the anoxic denitrification region; the anaerobic ammonia oxidation zone is used for reacting the sewage with nitrite to generate nitrogen; the aerobic oxidation zone is used for promoting microorganisms to degrade organic matters in sewage and convert ammonia nitrogen; the high-density settling zone is used for separating muddy water in sewage; the MBBR biological filtration area is used for filtering suspended matters in the sewage; the backwashing water tank is used for providing backwashing make-up water for the MBBR biological filtration area; and the equipment room is used for placing disinfection equipment, a fan and a power distribution control system.

The invention relates to the technical field of wastewater treatment, and provides a papermaking wastewater precipitation and recovery device which comprises air flotation equipment and a filter tank, and further comprises a filter cartridge, a wastewater pipe, a backwashing recovery assembly, a biological filter tank and a biological filter assembly, the two ends of the filter cartridge are sealed and rotationally sleeved with bearing supports respectively, and the two bearing supports are symmetrically arranged; a mounting rack is mounted on the filter tank, a bearing bracket is fixedly mounted in the mounting rack, a wastewater pipe is fixedly mounted on the mounting rack, a backwashing recovery assembly is mounted in the filter cartridge, a water distribution tank, a filter area and an overflow area are arranged in the biological filter tank, and a biological filter assembly is mounted in the biological filter tank. The problems that in the prior art, fine fibers, colloids and mixed impurities in waste water are prone to blocking a filtering structure, the waste water treatment process is discontinuous, frequent shutdown is needed for cleaning the filtering structure, and the overall treatment efficiency and stability are low are solved.

Aspects of the invention relate to a wastewater treatment method (100) and a wastewater treatment plant (1) for treating wastewater. The wastewater treatment method (100) includes receiving wastewater to be treated. The wastewater is supplied to a bioreactor (13) for biofiltration of the wastewater. The wastewater is discharged from the bioreactor (13) to a mechanical filtration device (15) arranged downstream of the bioreactor (13). The mechanical filtration device (15) comprises a static filtration pack (75) for filtering solid waste suspended in the wastewater. The static filter pack (75) contains a plurality of mechanical filter elements (71), each having one or more filter units (73). And discharging the treated wastewater.

The application provides a biological filtration filler for VOCs and malodorous gas treatment and a preparation method, and belongs to the technical field of environmental treatment. The biological filtration filler is composed of organic fillers and inorganic fillers. The organic fillers include tree bark, compost or straw, and the inorganic fillers include zeolite, biological carbon, ceramic granules or shells. The mass ratio of the organic fillers to the inorganic fillers is (1-18):100. The application combines the characteristics of different component fillers and is optimized. A combined biological filtration filler is provided. The filler can provide reasonable environmental conditions for long-term stable growth of degrading bacteria, is beneficial to the proliferation of degrading bacteria on the surface of the filler and the formation of a biological membrane, and is also beneficial to the diffusion of gas on the surface of the biological membrane of the filler. The application overcomes the shortcomings of easy degradation, blockage of voids, large resistance, short gas flow and easy generation of anaerobic zones in local fillers when the organic fillers are used alone.

The invention provides a semi-automatic zero-water-change internal circulation incubation system, and relates to the technical field of data processing, and the semi-automatic zero-water-change internal circulation incubation system is characterized in that bottom accumulated dirt is sucked and verified by using a gap structure of a backflow sleeve and a limiting backflow pipe, the gap size and the height of the backflow pipe are optimized, and water flow dynamic parameters are obtained; the biofilter is used for biologically filtering and decomposing the water body of the spray culture pond and optimizing the opening parameters of the filter bag pipe according to the water flow dynamic parameters; monitoring a water body in real time through a biological filtration load dynamic adjustment method, and dynamically adjusting the operation power of a water pump to obtain a purified water body; the method is used for dynamically distributing the flow ratio of purified water to the roe incubator to return water to the spray cultivation pool on the basis of purified water and through a circulating water flow distribution intelligent regulation and control method based on the fry breeding density and the growth stage, and zero-water-change internal circulation is achieved. The fish roe turning incubation effect and the stability of the water fry cultivation process are effectively guaranteed.

The utility model relates to the technical field of sewage treatment, in particular to a biological filtration device for short-cut nitrification reaction, which comprises a sewage treatment tank, two partition plates are fixedly mounted in the sewage treatment tank, a plurality of water through holes are formed in one side of each partition plate, and a plurality of positioning holes are formed in the top sides of the two partition plates. The utility model has the advantages that through the matched arrangement of the partition plate, the water through hole, the mounting plate, the limiting slide block, the filler screen frame, the positioning fixture block, the connecting plate, the membrane frame and the MBR membrane, the double MBR membranes are added to treat sewage on the basis that the existing filler is used for treating the sewage; in the sewage treatment process, the sewage is firstly treated through the MBR membrane, then the sewage is treated through the filler in the filler screen frame, and finally the sewage is treated through the MBR membrane, so that the sewage treatment frequency is increased, impurities in the sewage can be intercepted, and the sewage treatment efficiency is improved. Therefore, the sewage treatment effect is better.

The invention relates to a biological sewage treatment reaction device based on macromolecular dissolved peptide, and belongs to the technical field of biological sewage treatment. A bracket is assembled above the base; a mixing barrel is arranged on the bracket; a sewage biological mixing assembly is arranged in the mixing cylinder; a sewage sedimentation tank is arranged on one side of the base and is a rectangular tank body, and a sedimentation tank cover plate is arranged above the sewage sedimentation tank; two groups of movable adjusting assemblies are arranged on the lower end face of the sedimentation tank cover plate in parallel, a push rod motor is assembled on the lower end face of the protection frame, and a sewage monitoring sensor is assembled at the bottom of the output end of the push rod motor. According to the sewage treatment reaction device disclosed by the invention, organic substances in sewage can be effectively removed, and the arranged biological cotton net can be used as a biological filtering medium, so that the treatment effect of the sewage treatment reaction device disclosed by the invention is integrally improved. The sewage can fully react with the macromolecular dissolving peptide in the mixing barrel, so that the further treatment on the sewage is realized, and the device is suitable for various sewage types such as urban sewage and industrial wastewater.

The utility model relates to circulating water aquaculture filtration technical field discloses a kind of three-dimensional filter devices of circulating water aquaculture, including coarse filter box, the coarse filter box inside is provided with coarse filter screen, the coarse filter box side wall is provided with fine filter box, the fine filter box inside is provided with fine filter screen, the fine filter box side wall is provided with biological filter box, the biological filter box inside is provided with filler plate, the biological filter box side wall is provided with clean water tank, the coarse filter box side wall is provided with cleaning assembly, the biological filter box inside is provided with mounting assembly;The cleaning assembly includes cleaning plate, and the cleaning plate side wall is attached to the coarse filter screen side wall.In the utility model, the chain sprocket and chain transmission driven by motor are used to move the cleaning plate up and down along the coarse filter screen to scrape off impurities, so as to achieve the effect of automatic cleaning of filter screen and prevention of blockage. The above structure improves the automation maintenance efficiency of the filter device and reduces the labor operation cost.

The utility model discloses a kind of fry breeding box, by physical filtration area, biological filtration area, oxygen supply system and intelligent control system are integrated design, realize the efficient purification and recycling of aquaculture water body. Physical filtration area adopts the design of slanted bottom cooperation automatic sewage collection structure, biological filtration area is maintained water quality stability by nitrifying bacteria automatic addition and combined filter material, oxygen supply and disinfection module work together to guarantee oxygen safety, intelligent control system monitors environmental parameter in real time and executes protective control strategy, effectively solve the technical problems of traditional breeding box maintenance frequently, water quality fluctuation, fry survival rate is low, with the technical advantages of high filtration efficiency, convenient operation, water quality stable controllable.

The present application belongs to the technical field of environmental protection, and particularly relates to a high-concentration odor combined treatment device and method for kitchen waste. The odor pretreatment unit of the treatment device comprises an alkali washing tower and an acid washing tower, and the outlet of the alkali washing tower is connected to the inlet of the acid washing tower. The odor biological treatment unit is a combined biological filter tank, which comprises a biological trickling filter section, a pre-washing section and a biological filter section connected in series, and the inlet of the biological trickling filter section is connected to the outlet of the acid washing tower. The odor deep treatment unit comprises a double-mediator barrier low-temperature plasma equipment, a delay oxidation tower and a spraying tower connected in series, and the inlet of the double-mediator barrier low-temperature plasma equipment is connected to the outlet of the biological filter section. The double-mediator barrier low-temperature plasma equipment is used for removing residual refractory odor substances in the gas. The delay oxidation tower is used for prolonging the gas residence time, and the spraying tower is used for the final purification of the gas. The present application can efficiently and accurately remove odor-causing substances, and the treated gas can meet the environmental protection requirements.

The invention relates to an integrated water treatment filter for a recirculating aquaculture system and a filtering method, and belongs to the field of water treatment. The device comprises a biological filtration unit and a physical filtration unit, and is structurally characterized in that the physical filtration unit is located in the biological filtration unit, and the physical filtration unit is located at the upper end of the biological filtration unit; the physical filtering unit is located in the biological filtering unit, and the physical filtering unit is located at the upper end of the biological filtering unit; the physical filtering unit comprises a bead intercepting net, a filtering barrel, a back washing spraying device and floating bead filler, the bead intercepting net is arranged at the top of the filtering barrel, the back washing spraying device is located in the filtering barrel, the floating bead filler is arranged in the filtering barrel, and the back washing spraying device is located in the filtering barrel. The biological filtration unit comprises a barrel body, an aeration device and a high-specific-surface-area filler, the filtration barrel, the aeration device and the high-specific-surface-area filler are all located in the barrel body, and the aeration device is located at the bottom of the barrel body.

The utility model discloses a system for indoor continuous culture of gynura mongolica. The system comprises a culture container, an imitated natural light source, a temperature control device, a heat exchange tube, a culture water outlet, a physical filter device, a protein separator, a microorganism filter device and a PEM ozone device. A powerful filtering system and an air stripping system are utilized, the air stripping system can disturb a large amount of water, excrement of heavy euonymus mongolicus is filtered out at the first time, excrement sinking to the bottom cannot be generated, the aquaculture water is in a clean state, a powerful circulating water system is matched, ammonia nitrogen nitrite in the water is reduced, and the water quality is improved. And the treated high-quality purified water is conveyed back into the culture container, so that the purpose of recycling the culture water is achieved, the quality of the used culture water is good, the naked belly flea Mongolica can effectively grow in a comfortable environment, and the probability that the naked belly flea is completely killed due to insect falling and necrosis is greatly reduced.

The utility model provides a road rainwater pretreatment device which is characterized by comprising a pretreatment chamber (1), a biological filtration chamber (2) and a drainage chamber (3), the pretreatment chamber (1) and the drainage chamber (3) are respectively arranged on the same side of the biological filtration chamber (2), the pretreatment chamber (1) is communicated with the biological filtration chamber (2), the biological filtration chamber (2) is communicated with the drainage chamber (3), and the biological filtration chamber (2) is communicated with the drainage chamber (3). An overflow weir (1-1) is also arranged between the pretreatment chamber (1) and the drainage chamber (3); through the arrangement of the pretreatment chamber and the biological filtration chamber, the pre-filtration chamber can effectively intercept large garbage and debris in rainwater, solid precipitates, the garbage and the debris are left in the pretreatment chamber, and a filling layer in the biological filtration chamber further filters organic matter and metal in the rainwater; therefore, the filtering treatment capacity of road rainwater is further improved, the filtering capacity and efficiency are improved, and the cleanliness of the filtered rainwater entering a rainwater pipe network is improved.

The invention discloses a pipeline type multi-stage biological deodorization device which comprises a bio-trickling filter structure section, a connecting device, a pre-wetting structure section and a fine treatment structure section, and the connecting height of the bio-trickling filter structure section and an odor output pipe can be adjusted through the bio-trickling filter structure section; the connecting device is arranged at the rear end of the top of the bio-trickling filter structure section; the pre-wetting structure section is arranged at the left moving end of the connecting device; the biological filtration fine treatment structure section is arranged at the right side moving end of the connecting device and can drive a center component in the top of the biological trickling filtration structure section to rotate and stir in a limiting manner, and the connecting device can drive the pre-wetting structure section and the biological filtration fine treatment structure section to synchronously expand and contract; the fillers in the left end and the right end of the top of the bio-trickling filter structure section are clamped and fixed; in conclusion, flexible adjustment, linkage and quick connection and disconnection of the structural sections are achieved through multiple assemblies, and the odor purification quality and the deodorization efficiency are high.

According to the multifunctional emergency phosphorus removal aeration device for the lake, the phosphorus removal system is adopted, sewage to be treated is guided into the water inlet pipe after being preliminarily filtered, more than 90% of phosphorus can be removed from the sewage passing through the biological filter layer under the action of the phosphorus adsorption plate, and the water after phosphorus removal is guided into the system, so that the sewage can be recycled. Under the action of oxygen bubbles generated by the aeration pipe grid, microorganisms released by the bottom microorganism particle slow release tank are diffused into a large water area, so that the treatment of eutrophicated rivers and lakes is improved. The aeration system is simple in structure and convenient to use, the aeration system is not provided with a mechanical rotating part in water, the water body is not vibrated violently, organisms in the water body are not damaged, the water body is not easily stirred, deposited pollutants are not easily released into the water body again, and on the other hand, a biological filtering layer formed by microorganisms attached to the ceramsite layer is low in price, resistant to corrosion, light in weight and convenient to use. The porous surface area is large, the stress resistance is good, and the generalizability is high.

A liquid inlet is formed in a box body, a liquid inlet box is arranged in the box body, a first rectangular through hole is formed in the end, away from the liquid inlet, of the liquid inlet box, a fine filtering cover and a coarse filtering cover are arranged at the position, above the first rectangular through hole, of the liquid inlet box, the coarse filtering cover is arranged on the outer side of the fine filtering cover, and a filtering net is arranged in the fine filtering cover; a first drawer is arranged at the lower end of the liquid inlet box, a quartz sand filter material layer and a biological filter membrane layer are arranged in the first drawer, an ozone treatment box is arranged at the lower end of the first drawer, a second rectangular through hole is formed between the ozone treatment box and the first drawer, and a first liquid level sensor and a mixing and stirring shaft are arranged in the ozone treatment box; and the mixing and stirring shaft is provided with mixing and stirring blades which are connected and fixed through threads. The fine filter cover and the coarse filter cover in the liquid inlet box can remove large-particle impurities in liquid, and the filter screen further improves the filter precision; and the quartz sand filter material layer and the biological filter membrane layer can effectively adsorb and decompose organic matters.

The application discloses a pipeline type multi-stage biological deodorization device, which comprises a biological trickling filter structure section, a connecting device, a pre-wetting structure section and a fine treatment structure section. The biological trickling filter structure section can adjust the connecting height with an odor output pipe. The connecting device is arranged at the top rear end of the biological trickling filter structure section. The pre-wetting structure section is arranged at the left moving end of the connecting device. The biological filtration fine treatment structure section is arranged at the right moving end of the connecting device. The biological filtration fine treatment structure section can drive the central part in the top of the biological trickling filter structure section to limit rotation stirring. The connecting device can drive the pre-wetting structure section and the biological filtration fine treatment structure section to expand and contract synchronously, and clamp and fix the fillers in the left and right ends of the top of the biological trickling filter structure section. Through the multi-component structure, the flexible adjustment and linkage and the quick disconnection of the structure section are realized, and the quality and deodorization efficiency of the odor are efficiently purified.

The utility model relates to odor integrated treatment equipment, and relates to the field of deodorization equipment. The device comprises a filter cylinder, a cover plate, a first filter piece and a second filter piece, a net cylinder is vertically fixed to the circle center of the inner bottom face of the filter cylinder, the net cylinder is vertically sleeved with biological filtration adsorption filler, the top face of the filter cylinder is open, the cover plate is arranged at the opening of the filter cylinder, the cover plate comprises a gas distribution rod, and the gas distribution rod is fixed to the circle center of the cover plate in a penetrating mode. And the top of the air distribution rod is fixedly communicated with an air inlet pump, the air distribution rod is inserted into the net cylinder, and two screw rings are horizontally fixed to the top face of the interior of the cover plate along the same circle center. The filter cylinder and the cover plate can be lifted and detached, the biological filtration and adsorption filler can be conveniently lifted and replaced in the net cylinder after detachment, meanwhile, the first filter part and the second filter part are used for detaching the cover plate in a threaded mode to replace the internal filler, and therefore the deodorization unit can be rapidly detached to replace the internal filler, and the convenience of replacement and detachment of the deodorization unit is improved.

The application relates to the technical field of pesticide residue wastewater treatment, and discloses a biological filtration system suitable for pesticide residue wastewater treatment, which comprises the following components: a photovoltaic component for providing power for the biological filtration system; a control monitoring system for monitoring filtration data and controlling the sewage flow rate of the biological filtration unit; a sewage pool for collecting pesticide residue wastewater; a biological filtration unit adopting a filter box filled with fully mixed and uniform straw, substrate and soil as the filtration unit; and a clean water pool for collecting filtered water after pesticide residue filtration. The biological filtration system can greatly filter and purify pesticide residues in the pesticide residue wastewater, and the degradation rate of imidacloprid at the water outlet after filtration is more than 99%, so that the harm of pesticide residues to the environment and plants can be greatly reduced.

This utility model discloses a fish tank top filter structure, including a water tank, filter devices arranged on both sides of the water tank, and a cover covering the filter devices. A water outlet is provided on one side of the bottom of the water tank. An air pump is installed inside the water tank, and filter media is provided at the bottom of the water tank. The filter devices include a box body with a first water inlet. A support boss is provided inside the box body, and a first filter box filled with activated carbon is placed on the upper part of the support boss. A second filter box filled with filter cotton is placed on the lower part of the support boss. Both the first and second filter boxes have perforations. Product advantages: This structure provides a complete physical, chemical, and biological three-in-one filtration system. Physical filtration is achieved by filter cotton, chemical filtration by activated carbon, and the filter media at the bottom of the water tank are mainly used for biological filtration. This multi-stage filtration can effectively remove impurities, odors, and harmful substances from the water, keeping the water quality clear and healthy.

The utility model discloses a kind of nutrient solution circulation and replenishing device of biological filtration device, it is related to biological filtration technical field.The utility model includes filter tower body, filter tower body is provided with filtering mechanism inside, one side of filter tower body is provided with circulating replenishing mechanism, the spray end of filtering mechanism is provided with circulating spray mechanism, one end of circulating spray mechanism is provided with reciprocating drive mechanism.The utility model is driven end by reciprocating drive mechanism Rotary motion, actively extrude the spray end of circulating spray mechanism, force its spray end inside the spray end of filtering mechanism Circulating sliding;In this process, the edge of hard spray end continuously scratches the mineral substance such as calcium and magnesium ion crystallization deposited on spray end surface;This mechanical scraping mechanism effectively solves the inherent defects of traditional spray system, actively scraping is from source to destroy the formation and solidification process of scale layer, guarantee the long-term stability of spray flow and the efficient operation of device.

The invention provides a bacterial fiber matrix purifier, which integrates a bag type fiber biological filtration matrix and a synchronous nitrification and denitrification mechanism, and has triple advantages of simple structure, efficient decontamination and resource circulation; a modified plastic fiber cloth bag is adopted to synchronously complete physical filtration, biological reaction and microbial film treatment, a vertical flow precipitator, a microfilter, a protein separator and a biological fluidized bed are completely replaced, and the equipment investment is reduced; through the back flushing design of the bottom of the central water inlet pipe, sewage is distributed in a fluidization mode in the bag, macromolecular organic matter is decomposed into biological floccules capable of being eaten by fishes in combination with bacterium-carbon coupling targeted control, the recycling rate of residual feed and excrement is high, meanwhile, high-energy-consumption equipment is omitted, and energy consumption of the system is reduced; the system not only can independently operate in land-based industrial aquaculture to realize a zero-emission carbon sink fishery mode, but also can be used as a front-end pretreatment unit of an existing RAS or an advanced treatment module of a sewage treatment plant, so that the load of a subsequent ecological pool is greatly reduced, and the standard recycling of aquaculture tail water is promoted.

The invention concerns a method and the related apparatuses for carrying out the treatment of gases / vapors and / or combustion flue gases containing pollutants such as NOx, SO2, CO, CO2, O3, CH, NH3, H2S, C2H6S, VOC, dioxins, and other elements (including heavy metal particulates PM10 and PM2.5 and PM1).

This invention relates to the field of biofiltration technology, specifically disclosing a negative pressure ultrafiltration centrifuge tube device, comprising a negative pressure base, a negative pressure hood, and an ultrafiltration support stacked sequentially from bottom to top. The ultrafiltration support has multiple placement holes arranged in a matrix, each holding an ultrafiltration centrifuge tube. The negative pressure base contains a base frame, which has multiple sets of elastic limiting structures corresponding to the placement holes. These elastic limiting structures hold a collection tube, and the ultrafiltration centrifuge tube is coaxially arranged with its corresponding collection tube, with at least a portion of the ultrafiltration centrifuge tube extending axially into the collection tube. This invention enables liquid filtration, concentration, cell separation, desalination, and other experiments using negative pressure, and has a wide range of applications. Compared with existing technologies, this invention has the advantages of shorter processing time and higher efficiency, and it does not cause damage or leakage to the ultrafiltration membrane, effectively preventing cell injury.

The invention discloses a clarification and separation system integrated with a biological filtration function and a treatment method of the clarification and separation system, and belongs to the technical field of sewage treatment. The system comprises a clarification separator body, a water distribution device and a water collection weir groove, the interior of the clarification separator body is sequentially divided into a sludge settling area, a diversion area, a biological filtration area, a clarification area and an ultrahigh area from bottom to top. The flow guide plate is used for guiding the flow of the mixed liquid, so that large-particle sludge is settled, fine sludge is guided to float upwards, and a sludge floc filtering layer with a certain thickness is naturally formed in the biological filtering area; a porous net-shaped structure formed by sludge flocs and extracellular polymeric substances (EPS) in the filter layer is used for permeating, intercepting, adsorbing and purifying rising water flow. The integrated treatment of precipitation separation and biological filtration is realized, an advanced treatment unit does not need to be additionally arranged, the SS (suspended solids) in the effluent is stable and less than or equal to 10mg / L, and the integrated treatment device has the advantages of small occupied area, low operation energy consumption, adaptability to high-sludge-concentration working conditions and the like.

The invention relates to the technical field of sewage treatment, in particular to a wastewater recovery device for pigment production and a use method of the wastewater recovery device, and aims to solve the problems of poor pretreatment effect, insufficient aeration and inconvenience in installation and replacement of a filtering mechanism in existing wastewater treatment. A partition plate is arranged in the device to divide the device into a pretreatment cavity and an aeration cavity, a biological filtration assembly is arranged in the pretreatment cavity, and an aeration assembly is arranged in the aeration cavity; the filter box is connected with the settling chamber through a connecting pipe and is internally provided with a coarse filter cylinder and a fine filter cylinder; the mounting box is detachably connected with the filter box, a delivery pump is arranged in the mounting box, sewage is subjected to biological filtration and aeration and then is pumped into the filter box by the delivery pump for double filtration, the sewage can be effectively pretreated, the oxygen content can be increased, and the filter mechanism is convenient to disassemble, assemble and maintain.

The present application relates to a kind of grass carp circulating water aquaculture tail water comprehensive treatment system based on MABR and its use method, it relates to aquaculture water treatment technical field.Processing system is sequentially connected physical filtration unit, biological filtration unit, MABR processing unit, disinfection unit and reuse unit, air supply unit is separately arranged;Use method is to apply MABR technology to biological filtration unit after, before disinfection unit, utilize physical filtration unit to remove large particle impurities and part of suspended solids in water body, the microorganism attached to biological filter material in biological filter carries out biological degradation to organic matter, ammonia nitrogen and other pollutants in water body, the microorganism attached to MABR membrane in MABR processing unit carries out depth degradation to the pollutants in water body, again, to the water body after treatment ultraviolet disinfection is killed pathogenic microorganism, subsequent water body oxygenation recycling or discharge is discharged.The present application has integrated technology removal effect, good stability, save external carbon source and other advantages.

The present application relates to sewage treatment technical field, specifically to a kind of printing and dyeing sewage microbial integrated treatment system. The efficiency is low, and energy consumption is big to simply use physical method, chemical method and biological method to carry out treatment to dyeing wastewater. In view of the above problems, the present application provides a kind of microbial filter device, the structure and position design of inner cylinder and outer cylinder and horizontal partition plate, the design can significantly expand the area and type of microbial filler filling in limited space, obtain higher sewage treatment efficiency, the device has stronger processing capacity and purification effect to difficultly degradable organic matter printing and dyeing sewage.