125 results about "Bio filtration" patented technology

The utility model relates to the technical field of sewage treatment, in particular to a multi-stage ecological pig raising wastewater treatment system, which comprises an anaerobic baffled reactor, an anaerobic baffled reactor, an anaerobic baffled reactor and an anaerobic baffled reactor, a plurality of partition walls are arranged in the anaerobic baffled reaction tank and are divided into a plurality of independent anaerobic baffled reaction chambers, water passing pipes are arranged at the upper parts of the partition walls, and sewage sequentially flows among the anaerobic baffled reaction chambers through the water passing pipes; mud guide inclined walls are arranged on two sides of the bottom of the anaerobic baffling reaction tank; a settling mud inclined wall is arranged below the water outlet of the anaerobic baffling reaction tank; the multi-stage reverse-flow anaerobic biological filtration unit is communicated with the anaerobic baffling reaction tank; comprising a plurality of filter chambers filled with filler, and the filter chambers are sequentially communicated through water passing holes which are formed in a high-low staggered manner; the aerobic ecological purification system comprises a middle water tank, and part of effluent of the middle water tank flows back to the anaerobic baffled reactor and the microalgae purification tank. The device is friendly to ecological environment, low in energy consumption, small in dosage, low in operation cost and simple and convenient to operate.

The invention relates to the technical field of preparation of bird inhabitation bricks, in particular to a bird inhabitation brick capable of conducting drainage, gradient dynamic adsorption of organic matter and blocking and filtering water through heavy metal and a preparation method thereof.The preparation method comprises the steps that S1, a photocatalytic purification layer, a biological filtering layer and an adsorption stabilizing layer are formed and then subjected to demolding treatment, and the upper surface of each layer of brick body is removed; the other surfaces are subjected to anti-seepage treatment; s2, sequentially splicing a photocatalytic purification layer, a biological filtering layer and an adsorption stabilizing layer from top to bottom, accurately butting the ceramic pipe buckle parts of each layer, and splicing the three layers of bricks into a whole ecological combined brick, so as to obtain the bird inhabiting brick for guiding and discharging, dynamically adsorbing organic matters in a gradient manner and blocking and filtering water by heavy metals. According to the invention, pollutants flowing into the brick body can be effectively treated through the synergistic effect of gradient pores, large-particle pollutants are intercepted by macropores on the surface layer, decomposed organic matters are adsorbed by mesopores in the biological filter layer, and dissolved pollutants such as heavy metal ions and the like are fixed by the adsorption stabilizing layer.

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 provides a livestock farm waste gas purification system and related equipment. The system comprises a multi-source heterogeneous sensing module, a data processing module, a main control module, a chemical decomposition system, a biological filtration system, a waste liquid treatment system and a fault diagnosis system, wherein the multi-source heterogeneous sensing module is responsible for sensing each state parameter of a target farm and transmitting the state parameters to the data processing module; the data processing module is responsible for receiving the state parameters of the target farm transmitted by the multi-source heterogeneous sensing module, preprocessing the state parameters, and transmitting the obtained target multivariate data to the main control module; the control system is used for performing fusion processing on the target multivariate data and generating control decisions for the chemical decomposition system, the biological filtration system and the waste liquid treatment system; and each control decision is transmitted to the chemical decomposition system, the biological filtration system and the waste liquid treatment system so as to control the chemical decomposition system, the biological filtration system and the waste liquid treatment system to purify waste gas discharged from the target farm.

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 invention relates to the technical field of aquaculture, and discloses a factory-like circulating aquaculture system and method for aquaculture, and the system comprises one or more aquaculture units, a biological filtration unit and a water circulation filtration unit. Water in the culture ponds in the culture units flows into the microstrainers through independent water outlet pipes at the bottoms of the culture ponds to be primarily filtered, so that suspended particles such as residual feed and excrement in the water are effectively removed (discharged into the sewage pond); particulate matters such as residual feeds and excrement in water bodies are quickly pressed into the microfilters by the aid of high pressure of the water bodies during drainage at the bottoms of the culture ponds, and accordingly the removal efficiency of suspended particles in the water bodies of the culture ponds can be greatly improved; harmful substances such as ammonia nitrogen and nitrite in the water body are removed, the water quality is further improved, and the problems that an existing system is low in suspended particulate matter treatment efficiency, poor in biochemical treatment effect, high in cost, poor in circulation balance and the like are effectively solved.

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.

Provided are a fish farming system, a farming method, and a farming program that can reduce power consumption without impeding the growth of fish. [Solution] A fish farming system 100 includes a breeding tank 10 for breeding fish, a biological filtration tank 30 for circulating and filtering the breeding water W in the breeding tank 10, a pump P for circulating the breeding water W in the breeding tank 10 to the biological filtration tank 30, and a control device 200 for controlling the flow rate of the breeding water W circulated by the pump P. The control device 200 estimates the amount of ammonia generated by the fishes raised in the breeding tank 10 according to the relationship between the number of fishes raised in the breeding tank 10, the type of fishes, and the size of the fishes, and controls the flow rate of the breeding water W circulated by the pump P to the biological filtration tank 30 according to the estimated amount of ammonia generated and the ammonia concentration calculated according to the amount of the breeding water W in the breeding tank 10.

The utility model discloses a sewage treatment device for prefabricated vegetables. The sewage treatment device comprises a pretreatment area, an air flotation area, a hydrolytic acidification area, a biochemical area, a settling area, a biological filtration area and a clear water area which are communicated in sequence, sewage sequentially passes through the pretreatment area, the air flotation area, the hydrolytic acidification area, the biochemical area, the settling area, the biological filtration area and the clear water area and then reaches the national discharge standard. Through the multi-stage treatment process integrating the air flotation area, the hydrolytic acidification area, the biochemical area, the settling area, the biological filtration area and the like, the removal efficiency of high-concentration organic matters, grease and suspended matters is remarkably improved, and the effluent is ensured to reach the national discharge standard; through the communication design of the sludge tank and the adjusting tank, the cyclic utilization of sludge and supernate is realized, the emission of pollutants is reduced, and the concept of sustainable development is met; and the backwashing washing water in the biological filtering area flows back to the adjusting tank, so that the wastewater discharge is reduced, and the maintenance cost is reduced.

The utility model relates to the technical field of leech culture, and discloses a novel leech recirculating aquaculture system which comprises a culture pond, a microfilter used for reducing suspended solids in a water body and reducing the concentration of the suspended solids is arranged on one side of the culture pond, a water storage pond is arranged on one side of the microfilter, and a water pump in the water storage pond pumps water into a decoloration adsorption tank; a pipeline ultraviolet sterilization device for ultraviolet sterilization is arranged on one side of the adsorption tank, a fourth water outlet is formed in the outer wall, away from the water inlet, of the pipeline ultraviolet sterilization device, and a nitrification biological filter tower used for reducing the concentration of ammonia nitrogen and nitrite in water flow is arranged on one side of the pipeline ultraviolet sterilization device. The leech culture device can filter, decolorize, sterilize and biologically filter a red water body with residual food residues (generally pig blood) in water flow, so that the concentration of ammonia nitrogen and nitrite in the water body is reduced, the transparency of the water body is improved, the oxygen concentration of the water body is increased, and the carbon dioxide concentration of the water body is reduced, thereby reducing the risk of leech culture. And the survival rate of leech culture is improved.

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 is applicable to the technical field of deodorization treatment, and provides a deodorization treatment device which comprises an air inlet and a box body connected with the air inlet and arranged on one side of the air inlet, an exhaust port is arranged on one side, far away from the air inlet, of the box body, the air inlet, the box body and the exhaust port are sequentially connected, and a spraying assembly is arranged in the box body. The number of the spraying assemblies is two, one spraying assembly is arranged close to the air inlet, the other spraying assembly is arranged close to the air outlet, spraying heads are arranged on the spraying assemblies, and a plurality of spraying branch heads are evenly arranged in the spraying heads. The overall arrangement of the deodorization device can ensure the odor treatment effect, the spraying branch heads are uniformly arranged, so that the spraying liquid can be uniformly sprayed out, the odor can be fully contacted with the spraying liquid, substances dissolved in the spraying liquid are dissolved, the washing deodorization effect is achieved, and when the biological culture film is sprayed, the odor can be effectively removed. The moist condition of microorganism culture is ensured, the activity of microorganisms is kept, and biological filtration deodorization is realized.

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 present invention relates to the technical field of air conditioning equipment, and in particular to an air purification device for an autopsy room. The technical problem is that when the current purification device purifies the air in the autopsy room, it is difficult to brush off and clean the impurities attached to the biological filter plate, which makes it difficult for the biological filter plate to fully decompose and filter the impurities in the air, and it is not convenient to disperse the bubbles in multiple directions, which leads to insufficient dispersion of the bubbles, resulting in poor purification effect of the air in the autopsy room. An air purification device for an autopsy room includes an outer frame, a support plate fixedly connected to the inner wall of the outer frame, and an air suction frame fixedly connected to the bottom of the inner wall of the outer frame. When filtering the air for the second time, the motor drives the transmission assembly to rotate the bent rod, and the rotation of the bent rod causes the two biological filter plates to reciprocate through the slotted frame, so that the two biological filter plates are continuously switched in the air suction frame, so that the air can be fully filtered for the second time.

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 utility model discloses a circulating filtration system for a deepwater fancy carp fishpond, which relates to the field of water circulating filtration and comprises a machine body, a precipitation tank is arranged on one side of the machine body, and a physical filtration bin, a water quality regulation bin and a biological filtration bin are sequentially arranged in the machine body. A filter element is arranged in the physical filter bin, a transverse plate is arranged at one end of the filter element, a flushing pipe is arranged on the transverse plate in a penetrating mode, a waterwheel is rotationally installed in the center of the transverse plate, a scraper is arranged on the waterwheel, and the scraper is movably attached to the inner wall of the filter element; damage of water and impurities in the water to the filter element can be reduced, the service life of the filter element can be prolonged, the waterwheel rotates to drive the scraper to rotate, the scraper scrapes the impurities filtered on the periphery of the filter element, the filter element can be prevented from being blocked, water filtration can be accelerated, and the water treatment efficiency can be improved.

The utility model discloses a microorganism filtering device which comprises a filtering cavity and a filtering plate, a filtering chamber is arranged in the filtering cavity, a feeding port communicated with the filtering chamber is formed in the top of the filtering cavity, the filtering plate is arranged on the feeding port, and the filtering plate sequentially comprises a protection layer, a filtering layer, a separation layer and a supporting layer from top to bottom. A plurality of randomly distributed filtering channels are formed among the protective layer, the filtering layer, the separating layer and the supporting layer, and a discharging opening communicated with the filtering cavity is formed in the bottom of the filtering cavity. According to the utility model, the filter plate is additionally arranged on the filter cavity, the filter plate sequentially comprises the protective layer, the filter layer, the separation layer and the support layer from top to bottom, and a plurality of randomly distributed filter channels are formed among the protective layer, the filter layer, the separation layer and the support layer, so that the structural design has a good filter effect on microorganisms; the support and protection of the filter membrane are good, and microorganisms can be effectively filtered and separated from a diluent or a buffer solution.

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.