265 results about "Biofilter" patented technology

The invention relates to the technical field of water treatment, in particular to a prawn fry raw water biological filter treatment device. According to the technical scheme, the device comprises a pretreatment box, a disinfection box, an adjusting plate, a fine treatment box, a motor and a purification box, a screw is arranged at the output end of the motor, a nut in threaded installation with the screw is arranged at the upper end of the adjusting plate, the outer wall of the adjusting plate is sleeved with an air bag, an air pump is arranged at the upper end of the adjusting plate, and the air pump and the air bag are communicated and provided with an air supply pipe; a pressure relief valve is arranged in the air supply pipe, a disinfection box is arranged on one side of the lower portion of the fine treatment box, sealing gaskets are arranged on the inner wall of the fine treatment box and the outer wall of the purification box, overflow holes are formed in the side wall of the lower end of the purification box, and a filter material layer is arranged in the purification box. Through modular design, the efficiency and economical efficiency of prawn fry raw water treatment are remarkably improved, and the problems that a large-area biological filter cannot flexibly adjust the treatment capacity and is difficult to adapt to different scale requirements are solved.

The utility model provides a biofilter filler support frame capable of being quickly installed, which belongs to the technical field of water treatment and comprises a base and a top plate, a bottom plate for placing a filter plate is arranged in the base, support plates for installing the filter plate are arranged on two sides of the bottom plate, and the support plates are also used for limiting the height of support columns. The four corners of the upper surface of the base are provided with inserting openings for fixing the supporting columns, the supporting columns for fixing and supporting the top plate are arranged in the inserting openings, the four corners of the lower surface of the top plate are provided with through openings for facilitating connection of the supporting columns and the positioning blocks, the through openings correspond to the inserting openings, and the tops of the supporting columns are provided with threaded holes for fixing the positioning bolts. A positioning block used for connecting and fixing the top plate and the supporting column is arranged at the top of the through opening, a threaded hole used for fixing a positioning bolt is formed in the positioning block in a penetrating mode, a positioning bolt used for connecting the positioning block and the supporting column is arranged in the threaded hole, and the positioning bolt is in threaded fit with the threaded hole.

The invention relates to the technical field of biological filter groups, in particular to a low-energy-consumption high-efficiency urban and rural small and micro water body biological treatment device which comprises a sewage inlet pipe, a biological filter group and a sedimentation tank, the biological filter group comprises an anoxic and anaerobic tank, aerobic tanks and an adjusting tank, the aerobic tanks are arranged on the front side and the rear side of the anoxic and anaerobic tank, and the adjusting tank is arranged on the front side and the rear side of the anoxic and anaerobic tank. Regulating tanks are arranged on the left side and the right side of the anoxic and anaerobic tank; by arranging the biological filter tank group, the anoxic and anaerobic tank, the aerobic tank and the regulating tank, a one-step two-cycle treatment mode of sewage can be realized, the nitrogen and phosphorus removal efficiency of the sewage is greatly improved, the energy consumption and sludge output are reduced, the overall blockage risk of the system is reduced, the structure is compact, the occupied area is smaller, and the cost is reduced. The system is high in impact load resistance and meets the low-energy-consumption and efficient decontamination requirements of urban and rural small and micro water bodies.

The invention discloses a phenol-cyanogen wastewater tail gas deodorization treatment process which comprises the following steps: firstly, intensively collecting tail gas through a system consisting of a sealing cover, a collecting pipeline and an induced draft fan aiming at normal-temperature odor containing ammonia gas, hydrogen sulfide and organic waste gas generated by structures such as an adjusting tank and a floatation tank in a phenol-cyanogen wastewater system of a coking plant; the chemical washing tower is used for removing alkaline substances and the like by using a phosphoric acid solution, the biological filter prewashing section is used for absorbing impurities and humidifying gas by using clear water, the biological section is used for degrading pollutants by using microorganisms, the activated carbon is used for adsorbing residual organic waste gas, and finally, the gas reaches the standard and is discharged through a chimney. The process can effectively reduce the concentration of each pollutant in the waste gas, improves the environment quality, provides treatment demonstration for the industry, and has remarkable environmental and economic benefits.

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.

The invention discloses a method for enhanced removal of VOCs (volatile organic compounds) and synchronous power generation by a biological filter bed coupled microbial fuel cell system. According to the method, VOCs are introduced into a cathode chamber of a microbial fuel cell and then upwards penetrate through a filler layer of a fungus-bacterium coupled biological filter bed, in the stage, hydrophobic VOCs are adsorbed by fungal hyphae and then are aerobically degraded by bacteria to generate metabolic intermediates, hydrophilic VOCs can be directly degraded by aerobic bacteria, the purified VOCs are discharged from the top, and the purified VOCs are discharged from the bottom of the microbial fuel cell. Hydrophilic VOCs and metabolic intermediates which are not degraded in time can enter an anode chamber of the microbial fuel cell along with the nutrient solution, and the hydrophilic VOCs and the metabolic intermediates are further degraded as power generation substrates and generate electrons (e <->). According to the invention, the fungus-bacteria mixed biological filter bed is coupled with the microbial fuel cell system for treatment, so that enhanced removal is realized, and high-efficiency power generation is also realized.

The invention provides a sponge city river ecological environment comprehensive treatment and later maintenance intelligent management and control platform, and relates to the technical field of urban water environment treatment. Comprising an Internet of Things sensing layer, the Internet of Things sensing layer is composed of a water quality sensor, a flow monitor and a meteorological station, the multistage ecological purification module comprises a front sedimentation tank, an ecological floating island unit, a biological filter and an artificial wetland, the ecological floating island adopts a modified polyethylene base material to plant stain-resistant aquatic plants, and a biological filler is suspended at the bottom of the floating island; and the intelligent management and control system integrates a dynamic water quality model and an AI algorithm, automatically regulates and controls the aeration equipment, the ecological water replenishing valve and the agent adding device according to real-time data, and realizes dissolved oxygen balance and pollutant reduction of the river channel. Dynamic regulation and control of water quality are achieved through the Internet of Things sensing layer and the AI prediction model, the total nitrogen removal rate is stabilized to be 75% or above, the runoff coefficient in the rainstorm period is reduced to 0.45, and 95% of suspended solids are intercepted.

The present invention proposes a water treatment system that couples anoxic biofilters with artificial wetlands, belonging to the field of water treatment technology. The key technical points are: sewage is collected through a pipe network and flows into a water collection pool, and then enters a regulating / anoxic pool through a lift pump. The solid carbon source in the pool provides a carrier for microorganisms while achieving slow-release supplementation of the carbon source, thereby strengthening the denitrification reaction to remove total nitrogen. The system is then transported to a biofilter and a contact oxidation pool by a lift pump, and COD and ammonia nitrogen are removed through carbon oxidation and nitrification reactions. The effluent enters a high-efficiency clarifier, and after most of the total phosphorus and SS are removed through chemical phosphorus removal and coagulation and sedimentation, the overflow enters an artificial wetland, and is subjected to a comprehensive treatment of plant-microorganism-filler to deeply purify the pollutants and meet the discharge standards. Using the water treatment method of the present application, the effluent water quality can be improved to the Class B emission standard.

The invention relates to the technical field of water treatment, and discloses a multi-stage linkage water quality purification treatment method for drainage basin treatment, which comprises the following steps: reducing the flow rate of drainage basin runoff entering a pretreatment pool by using a stepped energy dissipation ridge; an overflow weir is arranged between the pretreatment pool and the biochemical purification unit, runoff with the flow lower than a threshold value is guided to the biochemical purification unit according to a water level pressure head, and excessive flow is guided to a bank zone ecological buffer zone; enabling the runoff to sequentially flow through the anaerobic biological filter tank and the aerobic ecological tank, and generating gravity flow by utilizing a unit elevation difference; according to the invention, the self-adaptive flow distribution is realized by utilizing a water level physical signal, the scouring stripping of a microbial film of a biochemical unit by a dynamic load is effectively prevented, and the stability of the effluent quality of the system is maintained through kinetic energy level conversion.

The utility model relates to the field of biological filter beds, in particular to a microorganism pollution and carbon reduction device based on an efficient composite biological filter bed, which comprises a tank body, a transmission case is fixedly connected to the top of the tank body, a spraying rod is movably connected to the top of the inner wall of the tank body, and a support frame is fixedly connected to the upper part of the inner wall of the tank body. The middle of the bottom of the supporting frame is movably connected with a placement frame, a microorganism filler box is inserted into the inner wall of the placement frame, the middle of the right side of the tank body is fixedly connected with an adjusting box, the right side of the adjusting box is fixedly connected with a control table, a rotation mechanism is arranged in the adjusting box, and a rotating mechanism is arranged in a transmission box. According to the utility model, the alternation of the microbial filler boxes and the uniform water spraying of the spraying rod are realized, and the high efficiency and the uniformity of the device are improved.

The application provides a biological denitrification treatment method for low-carbon-nitrogen-ratio wastewater, and utilizes single-stage nitrification and denitrification to treat ammonia-nitrogen wastewater in a one-piece submerged biological filter (SBAF reactor). The method comprises the following steps: sludge inoculation, sludge biofilm formation, system starting, and stable operation. In the sludge inoculation, sludge meeting the microbial community distribution is selected. In the system starting process, the microbial community distribution in the sludge in the one-piece submerged biological filter (SBAF reactor) is used as the symbol of successful system starting. During the input of the high-concentration ammonia-nitrogen wastewater to be treated, the aerobic nitrifying bacteria and the anaerobic denitrifying bacteria can more stably meet the above microbial community distribution, the system has better stability, the stable operation time is longer, the sludge does not need to be replaced for restarting during the stable operation, the continuous operation time is longer, can reach at least 250 days or more, and the frequency of replacing the sludge for restarting is reduced.

The invention discloses a method for quickly enriching sulfur disproportionated bacteria, which is characterized in that the concentration of hydrogen sulfide in a reaction system is stably controlled below 40mg-S / L by optimizing culture conditions, including but not limited to the technical means of improving the replacement frequency of a disproportionated bacteria culture solution, adopting gas stripping and the like, so that the quick enrichment of sulfur disproportionated bacteria is realized. Compared with the prior art, an elemental sulfur biological filter does not need to be additionally built, and the operation process is simplified; the use of nitrate is avoided, and the management risk of chemicals easy to explode is avoided; the relative abundance of the sulfur disproportionation bacteria is remarkably improved, and an efficient, economical and feasible technical scheme is provided for large-scale application of the sulfur disproportionation reaction in sewage treatment.

The invention discloses photovoltaic driving type integrated biological filter equipment and a denitrification method thereof, and relates to the technical field of biological filters, the biological filter equipment comprises a biological filter and a photovoltaic driving unit, the photovoltaic driving unit comprises a photovoltaic power generation module, an execution module and a denitrification reaction module, the denitrification reaction module monitors the illumination intensity and the ammonia nitrogen concentration of the sewage in the biological filter in real time, and distributes photovoltaic electric energy to the denitrification reaction module or other units needing power supply on the basis of comparison of the monitored illumination intensity and the ammonia nitrogen concentration of the sewage in the biological filter with a preset threshold, so that the energy use efficiency is optimized; the denitrification reaction module is arranged in the biological filter, controllable current is applied to accelerate denitrification of the biological filter, ammonia nitrogen is directly oxidized at an anode or indirectly oxidized through active chlorine, hydrogen is generated at a cathode to serve as a denitrification electron donor, nitrate is accelerated to be reduced into nitrogen, and the problem that a traditional denitrification carbon source is insufficient is solved.

The utility model discloses a scattered household black water treatment and resource utilization device which comprises an anaerobic fermentation tank, an aerobic nitrification tank, a denitrification nitrogen removal tank, a biological aerated filter, a cascade artificial wetland and a water storage tank which are sequentially communicated, a discharging device for discharging biological fertilizer is arranged on one side of the bottom of the anaerobic fermentation tank, and a water outlet higher than the discharging device is formed in one side of the anaerobic fermentation tank. According to the technical scheme provided by the utility model, germs, parasitic ova and the like are killed through anaerobic fermentation, meanwhile, high-quality organic fertilizer can be generated, then the technologies of aerobiotic treatment, anoxic treatment, biofilter treatment, constructed wetland treatment and the like are combined, pollutants in black water are further degraded, the quality of effluent water is improved, and the effluent water is reused for irrigation of vegetable fields, farmlands, forest lands and the like. And the organic fertilizer is recycled to the farmland to improve the soil fertility, so that the effective treatment and resource cyclic utilization of the black water of the scattered households are realized.

The utility model discloses a bio-trickling filter tank filled with ceramsite filter materials, which comprises a tank body, and the tank body internally comprises a water distribution area, a filler area and a water production area which are separated by a jacking layer and a bearing layer and are communicated with one another from top to bottom; a water inlet pipe and a water outlet pipe of the tank body are respectively communicated with the top and the bottom of the tank body; a self-rotating water distributor connected with the water inlet pipe is mounted in the water distribution area and is used for uniformly distributing sewage entering through the water inlet pipe onto the filler area; the filler area is filled with a ceramsite filter material for microbial biofilm formation and is used for purifying sewage uniformly distributed in the filler area; the water producing area is used for collecting clear water purified by the filler area, and the collected clear water is discharged through a water outlet pipe. The biological trickling filtration tank adopts an integrated structure, the civil engineering cost can be reduced, the ceramsite filter material is light in weight and low in price, the sewage treatment effect is good, rural domestic sewage can be conveniently and movably treated, and the possibility that equipment is idle is reduced.

The utility model discloses a biological filter for sewage treatment, and relates to the technical field of sewage treatment, the biological filter comprises a treatment chamber, an aeration assembly and a decontamination assembly, a biological filter layer is arranged at the upper part in the treatment chamber, the aeration assembly is arranged at the lower part in the treatment chamber, a motor mounting frame is fixed at one side in the treatment chamber, and the motor mounting frame is fixed at the other side in the treatment chamber. And a linear motor is slidably mounted in the motor mounting frame, a dirt removal assembly is mounted below the linear motor and comprises a fixing rod, a dirt removal scraper, a connecting rod, a lantern ring and an annular scraper, and the dirt removal scraper is connected to the bottom of the fixing rod. According to the biological filter for sewage treatment, a sewage cleaning scraper of the sewage cleaning assembly can move to clean sludge on the bottom surface of the treatment chamber, the sludge is intensively pushed to one side of a sewage discharge pipe so as to facilitate timely sewage discharge, and meanwhile, the movement of the sewage cleaning scraper can drive a connecting rod and a lantern ring to synchronously move; and the annular scrapers on the two sides of the lantern ring can descale the surface of the aeration pipe.

The present application relates to sewage treatment technical field, disclose a kind of rural sewage treatment system, including filter tank, biological filter, ecological filter, purification tank and disinfection tank, and filter tank is equipped with grating device;Biological filter is equipped with filler area and aeration pipe, and the sewage of treatment cavity is transported to biological filter by lifting pump;Ecological filter includes amphibious plant area, aquatic plant area and microalgae area, amphibious plant area includes first pool body and planted amphibious plant;Aquatic plant area includes second pool body and planted aquatic plant;Microalgae area includes third pool body and planted microalgae, and the upper portion of purification tank is equipped with water outlet, and multiple modified ceramsite columns are uniformly arranged in purification tank, and the inner pool wall in disinfection tank is equipped with multiple ultraviolet lamps.The present application is suitable for the change of water pollution load, improves sewage treatment stability, improves effluent quality, to reach reuse irrigation standard.

The invention relates to the technical field of water treatment, in particular to a composite treating agent for municipal sewage and a preparation method thereof.The composite treating agent is prepared by selecting industrial solid waste boric sludge, fly ash and the like as raw materials, taking biomass raw material epoxidized soybean oil as a binder, taking biomass raw material starch and plant-based porous carbon as adsorbents, mixing the raw materials with sodium silicate and water for granulation, and preparing the composite treating agent. The baking-free composite treating agent integrating multiple functions of sulfur autotrophic denitrification nitrogen removal, phosphorus removal, heavy metal chelating, porous carbon adsorption and the like is prepared, and when the baking-free composite treating agent is applied to urban sewage treatment, synchronous low-carbon and high-efficiency removal of various pollutants such as nitrogen, phosphorus and heavy metal can be achieved; after being granulated and formed, the composite treatment agent can be used as a filler of a biological filter to support the growth of sulfur autotrophic denitrifying bacteria, and can also be directly added into a pretreatment unit or an advanced treatment unit of a sewage treatment system.

The application relates to the field of sewage treatment, and discloses a sulfur autotrophic denitrification biofilter composite filler and a preparation method thereof. The method comprises the following steps: carrying out a silane hydrolysis reaction on a silane coupling agent containing a mercaptan group to prepare a hydrolysis solution, and then adding hydroxylated polystyrene microspheres into the hydrolysis solution to carry out a grafting reaction and prepare the sulfur autotrophic denitrification biofilter composite filler. The method grafts mercaptan groups to the surface of the polystyrene microspheres by using the silane coupling agent containing the mercaptan group. The mercaptan groups can specifically combine with sulfur transport proteins on the cell membrane of sulfur autotrophic denitrification microorganisms, so that the sulfur autotrophic denitrification microorganisms can selectively colonize on the surface of the polystyrene microspheres, competition between other microorganisms and the sulfur autotrophic microorganisms can be avoided, the colonization stability of the sulfur autotrophic microorganisms is improved, and the biofilm formation efficiency is improved.

The utility model discloses a device for on-line replacement of a spraying system in a biological filter, which comprises a sewage pipe, a spraying pipe and a spraying head, a water pipe bayonet is arranged on the sewage pipe, a clamping component matched with the water pipe bayonet is arranged at the joint of the sewage pipe and the spraying pipe, and the spraying head is arranged on the spraying pipe. A water retaining cap matched with the clamping assembly is installed at the bottom of the water pipe bayonet, a filtering box is installed at the joint of the spraying pipe and the spraying head, and a filtering assembly is installed in the filtering box. Compared with the prior art, the spraying device has the beneficial effects that the clamping assembly which is convenient to disassemble is arranged between the spraying pipe and the sewage pipe and is matched with the filtering assembly which is convenient to replace and is arranged above the spraying head, so that the replacing and cleaning efficiency of the spraying assembly is improved, the operation procedures are reduced, and the spraying assembly is convenient to disassemble and replace quickly.

The invention discloses a dephosphorization material and a preparation method and application thereof, the dephosphorization material comprises: a base material, the base material comprises SiO2, Al2O3, Fe2O3, CaO and MgO; elemental iron; and a plant foaming agent. The large-aperture structures uniformly distributed inside and outside the phosphorus removal material are beneficial to growth and attachment of microorganisms, and generation sites are provided for the removal process of phosphoric acid. The elemental iron contained in the material and phosphate undergo valence change through chemical combination to form hydroxyl and phosphorus flocculation so as to efficiently remove phosphorus pollution. In addition, due to the characteristics of oxidation-reduction capability, low cost, high porosity, difficulty in bonding, large specific surface area, high active iron content and the like of iron, the material has stronger electrochemical enrichment, physical adsorption and oxidation-reduction properties. Therefore, the traditional bottleneck is solved, and excellent efficiency is achieved in a biological filter and an artificial wetland.

The application discloses a biofilter and relates to the technical field of sewage treatment, which comprises a filter body, an aeration pipe is fixedly installed at the bottom end of the filter body, a support frame is arranged around the aeration pipe, the support frame comprises vertical rods and horizontal rods which are fixedly connected with each other, the vertical rods are fixedly connected with the filter body, the top end of the horizontal rods is provided with a same biofilter membrane, a liquid outlet cabin is arranged on one side of the filter body, slag prevention pieces are rotatably connected to the two sides of the vertical rods, the slag prevention pieces comprise slag blocking shells and mounting plates which are fixedly connected with each other, gas flows out through the gas passing holes of the slag blocking shells, the slag blocking shells have a certain blocking effect on solid particles in waste gas, a pretreatment cabin and a prefiltering screen for pretreating waste gas are arranged on one side of the filter body, and the waste gas is treated for multiple times, so that the technical problem that solid particles in waste gas easily cause the biofilter membrane to be blocked and affect the filtering effect of the biofilter membrane on waste gas is solved.

The utility model belongs to the technical field of odor treatment, and provides a BIM (Building Information Modeling)-based biochemical treatment deodorization device, which comprises a biological deodorization tower, a BIM-based biochemical treatment deodorization device and a BIM-based biochemical treatment deodorization device, and is characterized in that the biological deodorization tower comprises a pre-washing tank and a biological filter tank, a plastic filler area is arranged in the pre-washing tank, a biological filter material area is arranged in the biological filter tank, and the pre-washing tank is communicated with the biological filter tank; an air outlet of the fan is communicated with the inner top of the pre-washing pool; the circulating water tank is communicated with the inner bottom of the pre-washing pool; an inlet of the spraying pump is communicated with the circulating water tank, an outlet of the spraying pump is communicated with the upper calandria, nozzles are arranged at the tops in the prewashing pool and the biological filter, and the nozzles are communicated with the upper calandria through connecting branch pipes; and the control cabinet is electrically connected with the fan and the spraying pump. According to the device, odor substances are subjected to two-stage deodorization by utilizing the plastic filler area and the biological filter material area in the biological deodorization tower, so that the deodorization effect is guaranteed. Gas in the biological deodorization tower is treated through spraying water collected at the bottom in the pre-washing pool, humidification and temperature adjustment circulation in the tower is formed, and the requirement for the deodorization operation environment is met.

The utility model discloses a coagulative precipitation and full-automatic filter tank up-down type water purifier which comprises a coagulative precipitation tank body and a biological filter tank body, the coagulative precipitation tank body and the biological filter tank body are stacked, and the coagulative precipitation tank body is positioned below the biological filter tank body; a plurality of first partition plates are arranged in the coagulative precipitation tank body and divide an inner cavity of the coagulative precipitation tank body into a plurality of parts, namely a lifting tank, a mixing tank, a flocculation tank and a precipitation tank; a plurality of second partition plates are arranged in the biological filter tank body and divide the inner cavity of the coagulating sedimentation tank body into a plurality of parts, namely an aerobic biological filter tank, an anoxic biological filter tank and a clear water tank. The device is small in occupied area, low in operation cost and simple and convenient to maintain, and meets the requirements of application scenes such as feed water treatment, sewage regeneration and reuse, river and lake enhanced treatment and industrial wastewater deep treatment.

The utility model relates to biological filter bed technical field especially high -efficient composite biological filter bed's temperature and humidity control structure, including sampling pipe, the end of sampling pipe connects many branch pipes, the branch pipe inserts biological filler area, the bottom of biological filler area sets up bottom support frame, the one side of bottom support frame sets up waste gas air inlet pipe, the top of waste gas air inlet pipe sets up air inlet, the bottom of waste gas air inlet pipe communicates pretreatment area, the bottom of pretreatment area communicates air -guide equal -flow track, air -guide equal -flow track communicates biological filler area, the inner chamber top of biological filler area sets up a plurality of biological filler shower head, this high -efficient composite biological filter bed's temperature and humidity control structure can ensure that microorganism is in the most suitable growth temperature and humidity range, promotes the technology application and management to be more universal.

The application relates to the technical field of glass steel equipment, and relates to a glass steel biological filter deodorization equipment. The deodorization equipment comprises a biological pool and a pre-washing pool. The pre-washing pool is provided with a circulating pipeline, odor gas enters the pre-washing pool through the circulating pipeline, the pre-washing pool is filled with water covering the water inlet position, and a flow guide member for slowing down the gas flow speed is arranged on the inner side of the water inlet end of the pre-washing pool. A wind pipe and a shunt cavity are arranged between the biological pool and the pre-washing pool and are connected in front and back. The input end of the wind pipe is located on the top of the water outlet end of the pre-washing pool. The wind pipe is an n-shaped channel structure. The wind pipe is provided with a first spraying device. The shunt cavity is located at the bottom of the biological pool. The biological pool is provided with a stirrer. The application can help solve the problems of poor gas-liquid mixing effect and easy hardening and difficult maintenance of the biological pool.

The application discloses a vertical subsurface flow and intermittent aeration microbial filter wetland system, which comprises a comprehensive water inlet pipe gallery arranged at the upstream of the wetland, a water outlet pool arranged at the downstream of the wetland and a lower microbial filter arranged between the comprehensive water inlet pipe gallery and the water outlet pool, and the top of the lower microbial filter is provided with an upper subsurface flow wetland structure; the comprehensive water inlet pipe gallery comprises a comprehensive water inlet pool with an opening facing upwards, and a plurality of columnar water inlet holes are formed in the side wall of the comprehensive water inlet pool close to the lower microbial filter; the lower microbial filter is filled with porous medium carrier fillings; the whole wetland system adopts a double-layer cooperative purification design, the lower microbial filter completes the core degradation of organic pollutants, nitrogen and phosphorus in sewage, and the upper subsurface flow wetland structure performs deep purification on residual pollutants, so that the two layers of structures perform their respective functions and cooperatively treat the sewage, and the overall purification effect of the sewage and the pollutant removal rate are greatly improved.

The present invention relates to a waste gas treatment system for a sewage treatment station, comprising a scrubbing tower and a biological deodorizing device; the scrubbing tower is provided with an air outlet pipe for outputting odor and a liquid outlet pipe for outputting odorous water; the biological deodorizing device comprises a biological filter chamber, the biological filter chamber is provided with a biofilm frame, an air inlet pipe, and a liquid inlet pipe, the air inlet pipe being connected to the air outlet pipe, the liquid inlet pipe being connected to the liquid outlet pipe, the biofilm frame comprising a main frame, a packing plate, a lower aeration pipe, and an upper aeration pipe, the packing plate being divided into a lower packing plate, a middle packing plate, and an upper packing plate, the lower packing plate, the middle packing plate, and the upper packing plate being arranged on the main frame in order from bottom to top, the liquid inlet pipe being arranged below the lower packing plate, the air inlet pipe and the lower aeration pipe being arranged at the upper and lower ends of the lower packing plate, and the upper aeration pipe being arranged between the two middle packing plates. The present invention can uniformly treat odorous gas and odorous water generated in the scrubbing chamber, eliminating the need for separate treatment, thereby saving a biological filter tank and effectively reducing the cost of waste gas treatment.

The utility model discloses a biological filter low-carbon operation device based on magnetic suspension power, which relates to the technical field of biological filters and comprises a filter and a treatment component arranged at the bottom of the filter. The treatment assembly comprises a water inlet, the upper end of the water inlet is fixedly connected with one side of the bottom of the filter tank, the lower end of the water inlet is fixedly connected with a sewer pipe, a plurality of first water pumps are arranged on one side of the sewer pipe, a filter assembly is arranged on one sides of the first water pumps, and a second water pump is arranged on the other side of the filter assembly. The output end of the second water pump is fixedly connected with an aeration box. According to the utility model, through the arrangement of the treatment assembly, the volume of the filter assembly is reduced while the filtering effect is ensured, the filtering efficiency is effectively improved, the volume required by the filter assembly is reduced, and the problem that the existing low-carbon operation device needs more fillers to provide enough biological membrane attachment area is effectively solved.

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.