66 results about "Biological reaction" patented technology

The application discloses a membrane biological reaction sewage treatment device with sludge recovery and reduction structure and relates to the technical field of membrane biological reaction sewage treatment.The device comprises a treatment pool body, a membrane reaction group arranged on the right side in the treatment pool body, a separation mechanism arranged on the left side in the treatment pool body, a separation partition plate, a separation sieve plate fixedly arranged on the left side in the middle of the separation partition plate, a flow transverse groove arranged in the lower end of the separation partition plate, and a sedimentation mechanism arranged on the middle of the treatment pool body.The left side area of the treatment pool body is isolated by the separation partition plate, the flow transverse groove is arranged in the lower end of the separation partition plate, and the sedimentation mechanism is arranged on the middle of the treatment pool body.The membrane biological reaction sewage treatment device with sludge recovery and reduction structure can separate the water-containing sludge by the treatment pool body, reduce the load of the treatment pool body, and uniformly distribute the medicament by the middle spreading filter box, so that the sewage is efficiently treated by overflowing into the membrane reaction group, and the efficiency of environmental protection treatment is improved.

This invention relates to the field of wastewater treatment technology, and more particularly to a wastewater treatment device based on an algae-bacteria symbiotic photobioreactor, comprising: a mounting frame and a treatment tank fixed inside the mounting frame. The treatment tank contains a reaction assembly, which includes a drive rod and a reaction spiral blade. The drive rod is vertically positioned inside the treatment tank, and the reaction spiral blade is fitted onto the drive rod. The reaction spiral blade has reaction holes and contains a biological reaction layer. A collection hood, shaped like an inverted frustum, is located at the bottom of the treatment tank. Two symmetrical outlets are located at the bottom of the collection hood. A collection assembly, comprising a sealing ring, a guide ring, a movable rod, and a collection box, is located below the collection hood. The sealing ring is fixedly connected to the bottom side of the collection hood. This invention causes the generated sediment to converge centripetally at the bottom of the treatment tank, avoiding the formation of eddy current dead zones.

The utility model relates to automatic biological reaction platform technical field discloses an automatic work system and work platform thereof, solve the technical problem that the linear assembly line layout exists remarkable limitation at present, the utility model automatic work system includes multiple work devices, each work device includes at least one carrier frame and the first transfer robot that sets up corresponding at least one carrier frame, carrier frame is provided with multiple work spaces in the height direction, and each work space is for user self -definition, the operation side of at least one carrier frame is located to the first transfer robot, and the first transfer robot can pass on the multiple work spaces between corresponding at least one carrier frame Material. According to the above technical scheme, the utility model automatic work system can flexibly adjust the number of working procedures through multiple work spaces in the height direction of each work site, so that it can efficiently meet the diversified product production requirements.

This invention discloses a membrane bioreactor (MBR) treatment method and a field return system for wastewater from sheep slaughterhouses. After three-stage pretreatment, the wastewater undergoes two-stage anoxic-aerobic denitrification, with segmented influent and two-stage internal recirculation. A short-range nitrification window is created in the first-stage aerobic zone with low dissolved oxygen through intermittent aeration, while stable nitrification occurs in the second-stage aerobic zone. The biochemically treated effluent enters a PVDF submerged ultrafiltration (MBR), where the mixed liquor suspended solids concentration and flux are controlled. Backwashing / relaxation and chemical cleaning sequences are triggered by the increase in transmembrane pressure difference per unit time, enhancing shock and fouling resistance. MBR permeate is fed into a field return tank and connected to the field return system. Precise water and fertilizer return and salt control are achieved through rapid nitrogen and phosphorus measurement, application decision-making, and stratified drip irrigation valve control. This scheme can achieve effluent ammonia nitrogen ≤3 mg / L, high total nitrogen removal, and reduced membrane fouling and nitrogen loss.

The application discloses a CO2 information prediction method and device in a bioreactor, a storage medium and an electronic device. The method comprises the following steps: obtaining influence parameters of CO2 in the bioreactor, wherein the influence parameters comprise one or more of the following: a CO2 input rate, O2 concentration information in the bioreactor, an O2 input rate, an air input rate, a PH adjusting material input rate and a preset metabolite generation rate in a biological reaction process; performing CO2 concentration prediction based on the influence parameters of CO2 in the bioreactor by using a pre-created CO2 prediction model to obtain CO2 concentration information of the bioreactor; and determining CO2 partial pressure information of the bioreactor based on the CO2 concentration information of the bioreactor. By setting the CO2 prediction model, the influence parameters of CO2 in the bioreactor are predicted and processed, and the prediction efficiency and prediction accuracy of the CO2 information can be improved.

The application provides a method for detecting biochemical oxygen demand in sewage, and belongs to the field of oxygen demand detection. The method comprises the following steps: forming a fluorine-containing organosilicon nano coating on the electrode surface of a dissolved oxygen sensor of a full-automatic BOD5 analyzer to obtain a fluorine-silicon modified dissolved oxygen sensor; pretreating the sewage to be detected in an adsorption column composed of modified activated carbon and porous silica gel to obtain a pretreated water sample; fixing bacillus subtilis on a porous carrier and then putting the carrier into the pretreated water sample to obtain an inoculated water sample; measuring the initial dissolved oxygen of the inoculated water sample and the end-point dissolved oxygen after 5-day culture; and obtaining the five-day biochemical oxygen demand in the sewage according to the initial dissolved oxygen and the end-point dissolved oxygen. Through the four-level collaborative system of "sensor anti-interference optimization, sample purification and enrichment, microbial reaction standardization and accurate signal acquisition", the application systematically eliminates the error sources in the traditional BOD5 detection, and realizes the accurate measurement of the organic matter pollution level in complex sewage.

The application discloses a tobacco sheet capable of improving tobacco aroma release, a preparation method thereof and a heated cigarette. A tobacco raw material is treated under the condition that the temperature is 30-50 DEG C and the relative humidity of air moisture is 80%-120%, 2-10% of TiO2 based on the mass of the tobacco raw material is added into the tobacco raw material, and a microbial bacteria capable of degrading one or more macromolecular components of pectin, lignin, cellulose, hemicellulose and polyphenol is added and uniformly mixed, and then the mixture is placed in a dark environment; then, a photocatalytic coupling biological reaction is generated by irradiation of ultraviolet light with a wavelength of not higher than 400 nm, so that a tobacco powder subjected to the above pretreatment is obtained; and the tobacco powder is processed into a tobacco sheet. The application can better improve the problems that the release rate of tobacco aroma components of the heated cigarette is slow and the release amount is insufficient.

This application relates to the field of wastewater treatment equipment technology, and in particular to a detachable and washable jet aerator, comprising: a main air supply pipe with multiple first branch interfaces formed thereon, and one end of the main air supply pipe being connected to a gas supply unit; a main liquid supply pipe with multiple second branch interfaces formed thereon, and one end of the main liquid supply pipe being connected to a liquid supply unit; multiple mixing throats, one end of each mixing throat having a gas-liquid mixture outlet; multiple air supply branch pipes, one end of each air supply branch pipe being detachably and fixedly connected to the first branch interfaces, and the other end extending into a biological reaction tank and connected to the mixing throats; and multiple liquid supply branch pipes, one end of each liquid supply branch pipe being detachably and fixedly connected to the second branch interfaces, and the other end extending into a biological reaction tank and connected to the mixing throats. This application has the effect of reducing the cleaning cost of the jet aerator pipeline and shortening the cleaning time required.

The utility model relates to the technical field of sewage treatment design, in particular to modular biological reaction sewage treatment equipment. Comprising a sewage treatment tank, a mounting cavity is formed in the sewage treatment tank, and an impurity filtering cavity for filtering impurities and a sewage treatment cavity for biological purification are arranged above and below the mounting cavity respectively; a mounting box is arranged in the mounting cavity, and the side part of the mounting box is mounted in the sewage treatment tank through a connecting plate; a driving unit is arranged in the mounting box; a filter barrel mounted on the mounting box is arranged in the sewage treatment cavity; filtering holes are formed in the side wall of the filtering barrel, and the bottom of the filtering barrel is connected with the driving unit and used for driving the filtering barrel to rotate under the driving of the driving unit; a stirring assembly is arranged in the sewage treatment cavity; the driving unit is connected with the stirring assembly and is used for driving the stirring assembly to work, so that the stirring assembly stirs sewage falling into the sewage treatment cavity.

The utility model discloses a water distributor belongs to sewage treatment equipment technical field, specifically relates to a kind of sewage treatment equipment self-flow water distribution water distributor, it include: water distribution tank, water distribution pipe, water distribution bucket and counterweight;The water inlet of water distribution pipe is connected with the water outlet of water distribution tank, the water distribution bucket is movably installed in water distribution tank, and the counterweight is fixedly installed on water distribution bucket;The utility model water distributor can realize the uniform distribution of water flow, ensure that every drop of water can fully play its role, to improve wastewater treatment efficiency, promote the full contact of wastewater and sludge, to improve the efficiency and quality of wastewater treatment. Water distributor distributes water volume by certain rule, ensure that wastewater can be evenly distributed in treatment pond, so that wastewater and sludge can be fully mixed, to accelerate biological reaction process, improve treatment effect.

The application discloses sewage treatment equipment and method, including the slow flow pool of sedimentation, cyclone separation mechanism, passive buffer mechanism and layered biological carrier reactor which are connected in sequence;The cyclone separation mechanism includes a cyclone separation tank body, the bottom of which is a concave inverted cone structure, a plurality of cyclone input pipes are fixed outside the cyclone separation tank body, and a cyclone output pipe is fixed at the bottom of the cyclone separation tank body;The lower end side of the cyclone separation tank body is fixed with an impurity discharge pipe which is communicated with the inside of the cyclone separation tank body, and the impurity discharge pipe is provided with an impurity discharge control valve;The process is used for the phased treatment of sewage, the targeted purification capacity is strong, the slow flow pool of sedimentation can reduce the load of the subsequent core treatment unit;The cyclone separation mechanism focuses on the separation of fine particle impurities;The layered biological reaction of anaerobic and aerobic is combined, and the target treatment is carried out on the refractory organic matter and ammonia nitrogen, etc., respectively, and the purification range is comprehensive.

This invention relates to the field of biogas purification technology, specifically to a biological biogas desulfurization and decarbonization method coupled with green algae photosynthetic oxygen production, comprising the following steps: S1: Raw material gas pretreatment: Crude biogas is sequentially subjected to dust removal and pressurization to obtain pretreated gas; S2: Green algae cultivation and bioreaction system construction: The green algae cultivation system is started to prepare green algae culture medium, and green algae produce oxygen through photosynthesis; A composite culture medium is added to the biological desulfurization tank and a mixed bacterial agent is introduced to construct a desulfurization reaction system; S3: Simultaneous desulfurization and decarbonization reaction: The oxygen produced by the green algae cultivation system is transported to the biological desulfurization tank in a closed loop; This invention is the first to construct a four-phase closed-loop circulation system of bacteria-algae-gas-liquid at the engineering level, which dedicates the green algae photosynthetic oxygen production to desulfurization and oxygen supply, fundamentally solving the safety and explosion risks caused by the mixing of oxygen into purified biogas in existing microalgae-based biogas purification technologies.

The application relates to the technical field of sewage treatment, in particular to a circulating fluidized bed reactor for treating chemical wastewater, which comprises a reaction cylinder arranged vertically, a middle pipe coaxially arranged in the reaction cylinder, a circulating pipe coaxially and slidingly arranged in the middle pipe, a lifting piece arranged on the reaction cylinder and used for driving the circulating pipe to slide, biological reaction fillers arranged between the outer side wall of the middle pipe and the inner side wall of the reaction cylinder, a stabilizing frame arranged in the circulating pipe, a stirring shaft coaxially arranged on the stabilizing frame and rotating with the circulating pipe, the stirring shaft being vertically and slidingly matched with the stabilizing frame, a sliding piece arranged on the reaction cylinder and used for driving the stirring shaft to slide, a rotating piece arranged on the reaction cylinder and used for driving the stirring shaft to rotate, a stirring disc coaxially arranged at the bottom of the stirring shaft, a plurality of stirring blades rotatingly arranged on the stirring disc, and an angle adjusting piece arranged on the reaction cylinder and used for changing the inclination angle of the stirring blades. The application has the effect of improving the removal efficiency of organic substances in the sewage.

The utility model discloses a kind of biological treatment systems of organic waste gas washing sewage, including waste gas washing tower, sewage biological treatment system and recycling system, the bottom of waste gas washing tower is equipped with waste gas inlet and drain, the top of waste gas washing tower is equipped with purified gas outlet, the sewage biological treatment system includes sewage conditioning tank, biological reaction unit, sedimentation tank and clean water pool connected in sequence, the drain of waste gas washing tower bottom is connected with sewage conditioning tank, the clean water pool is connected with the high-pressure atomizing nozzle of waste gas washing tower by recycling system. By combining waste gas washing with sewage biological treatment, efficient and synergistic removal of pollutants and recycling of resources are achieved. The structure is compact, no additional chemicals are required, and the simultaneous degradation of organic matter in waste gas and sewage is possible. Through the synergistic design of the sewage biological treatment system and the recycling system, the operating cost is reduced, and the pollutant removal efficiency is improved.

The utility model provides a two -segment formula microorganism honeycomb tube bundle mass transfer sewage treatment equipment, including the microorganial tube bundle incubator, primary biological reaction box, secondary biological reaction box, tertiary biological reaction box and fresh water tank that pass through the pipeline connection in sequence, the microorganial tube bundle incubator, primary biological reaction box constitutes a section reaction area, secondary biological reaction box, tertiary biological reaction box and fresh water tank constitute two -segment reaction area, the microorganial tube bundle incubator is used for carrying out microorganism growth and proliferation, primary biological reaction box, secondary biological reaction box and tertiary biological reaction box are all used for biological culture. The utility model need not traditional sludge reflux and processing steps, greatly simplifies the operation process, and reduced the operation complexity, this makes this technique easier in all kinds of sewage treatment facilities popularization and application, reduces manual operation cost and time cost.

The application discloses a closed cell culture automatic instrument, comprising a plurality of core containers for biological reaction, the core container has a gas inlet, a gas outlet, a reagent inlet, a waste liquid outlet, a sample inlet, a sampling port and a collection port. The application adopts a transparent core container so that a microscopic imaging system can observe the inside in real time, and by setting the gas inlet, the gas outlet, the reagent inlet, the waste liquid outlet, the sample inlet, the sampling port and the collection port, the biological reaction can be carried out as required.

This invention relates to an integrated wastewater reuse device and method using a biofilm-ultrafiltration coupling process. The device includes a bioreactor body containing a biological reaction zone and a rapid sedimentation zone. The biological reaction zone further comprises an anoxic zone and an aerobic zone, both containing structured packing material. An inlet pipe is located at the front end of the anoxic zone, a microporous aeration device at the bottom of the aerobic zone, and a return pump at the end of the aerobic zone, connected to the inlet pipe via a return pipe. An inclined baffle is positioned at the end of the aerobic zone, enclosing a rapid sedimentation zone that is wider at the top and narrower at the bottom. The rapid sedimentation zone is divided into a lower sedimentation zone and an upper clear liquid zone, with the ultrafiltration membrane module immersed in the upper clear liquid zone. Compared to existing technologies, this invention effectively removes organic matter, total nitrogen, and suspended solids from wastewater, solving the problems of easy clogging, low efficiency, and high energy consumption in existing MBR systems.

The present application provides a method for preparing humic acid by activating coal gasification slag, a soil improvement material and its application, and relates to the technical field of resource utilization of coal gasification slag, comprising the following steps: mixing coal gasification slag with organic activation matrix to form a biological reactor; the organic activation matrix comprises at least one of livestock and poultry manure and its compost; the biological reactor is reacted under aerobic conditions, so that the stable carbon structure in the coal gasification slag is biologically activated, and the generation of humic acid and the conversion of fulvic acid to humic acid are promoted, and a soil improvement material is obtained. The present application not only has simple process and low energy consumption, is conducive to the high-value resource utilization of coal gasification slag, but also can significantly improve the content of humic acid and the stability of total humic acid, the product has no obvious ecological toxicity, and is conducive to the improvement of barren soil and the improvement of farmland soil nutrients.

The application relates to the field of sewage aeration purification technology, and discloses an aeration membrane bioreactor, which comprises an outer tank body, an inner tank body and an inner support plate are fixedly connected in the inner tank body, an outer layer cavity is formed between the outer tank body, the inner tank body and the inner support plate, and a reaction cavity is formed in the inner tank body and the inner support plate; an aeration membrane reaction mechanism for carrying out aeration membrane biological reaction is arranged in the reaction cavity; and a reflux pipe is arranged outside the outer layer cavity. The sewage in the reaction cavity penetrates through the filter ring and flows into the inner cavity of the filter ring, and then flows to the outer layer cavity, and is introduced into the reaction cavity again through the reflux pipe and the water inlet pipe, so that transverse flow of the sewage to the center position of the reaction cavity is formed, the sewage in the transverse flow is used to remove the sludge adhered in the sewage treatment process of the aeration membrane reaction mechanism, the service life of the device is improved, the cleaning frequency of the aeration membrane reaction mechanism is reduced, the cost of the sewage treatment is reduced, and the sewage treatment efficiency is improved.

The application provides a kitchen sewage purification circulation method and system, collects sewage removal data of stable water quality indexes when the sewage to be treated flows through a biological membrane reactor, determines the aeration supplement amount required for the micro-pore aeration auxiliary oxygen supply in the biological reaction process of the sewage to be treated in the aerobic zone through the sewage removal data and the real-time monitored dissolved oxygen concentration in the aerobic zone; predicts the settlement response trend of the biological reaction flocculation process in the constant sewage adsorption rate according to the grease content fluctuation characteristics, matches the dissolution mechanism according to the settlement response trend, and obtains the dissolution separation strategy of the biological dissolution process under the sewage settlement load; generates the purification efficiency indexes of the step-by-step biological treatment process according to the aeration supplement amount and the dissolution separation strategy, carries out the circulation regulation and control of the kitchen sewage treatment through the purification efficiency indexes, and stores the treated qualified water into a regenerated and reused water tank. The scheme of the application can realize the accurate regulation and control of the kitchen sewage purification circulation.

This utility model discloses a bioreactor, including a frame (41), a fermenter, a stirring device, and an aeration device; the fermenter is mounted on the frame (41); the stirring device and the aeration device are both connected to the fermenter. The bioreactor disclosed in this utility model provides the necessary nutrients for fermentation to the inside of the material tank through the aeration device, and the stirring device provides sufficient stirring, thereby improving the fermentation efficiency of aerobic fermentation.

This utility model relates to the technical field of sewage treatment equipment, specifically to an integrated domestic sewage treatment device. It features a structure designed for easy maintenance of the heating equipment, improving the efficiency and speed of equipment repair. The structure includes a housing containing an electrical control module. The housing contains, in sequence, an equalization tank, a biological reaction tank, and a sedimentation tank. A constant-temperature partition is installed between the equalization tank and the biological reaction tank. The constant-temperature partition includes a mounting groove, a mounting cover, a water outlet, and a temperature-sensing constant-temperature structure electrically connected to the electrical control module. The water outlet is located on the side of the constant-temperature partition away from the ground. The mounting groove is located on the side of the constant-temperature partition facing the equalization tank, and the mounting cover is embedded in the mounting groove. The temperature-sensing constant-temperature structure is located on the side of the mounting groove facing the equalization tank. A heat-conducting groove is located on the side of the constant-temperature partition away from the mounting groove. In this embodiment, the heating plate is located in the mounting groove. Opening the mounting cover fully exposes the heating plate, facilitating rapid maintenance and reducing maintenance time.

The invention provides an automatic parallel culture method, system and equipment of cell parallel reaction equipment, and relates to the field of cell culture and biological reaction process control, and the method comprises the following steps: initializing culture parameters of a plurality of reaction tanks; in the culture process, carrying out on-line or quasi-on-line detection on the cell concentration, dissolved oxygen, pH and temperature in the reaction tank; based on a detection result, calculating a liquid change strategy parameter and / or a gas adjustment parameter of each reaction tank by the control system; according to a calculation result, independently executing liquid change operation and / or gas flow regulation operation on each reaction tank through automatic equipment; by repeating the steps, automatic, parallel and continuous culture of the multiple reaction tanks is realized. According to the invention, a special cell interception device is not needed, high-throughput, low-cost and full-automatic continuous culture can be realized under the condition of small volume, the reactor culture representativeness and high-throughput screening efficiency are both realized, and the method is suitable for application scenes such as cell amplification, differentiation culture and process optimization.

This invention discloses a method for controlling the mixed liquor suspended solids (MLSS) concentration in a bioreactor based on an activated sludge mathematical model, comprising the following steps: S1, establishing and calibrating an activated sludge mathematical model; S2, setting a target MLSS concentration value for the bioreactor and collecting the MLSS concentration within the bioreactor; S3, calculating the current total mass of activated sludge based on the MLSS concentration and the effective volume of the bioreactor; S4, simulating and predicting the net increase in activated sludge volume within the most recent control period using the activated sludge mathematical model; S5, calculating the target sludge discharge mass for the next control period based on the simulation prediction results of the current total activated sludge mass and the net increase in activated sludge volume; S6, determining the sludge discharge flow rate based on the target sludge discharge mass and the real-time measured sludge concentration. This invention solves the problems of response lag, low adjustment accuracy, and poor adaptability to changes in influent load in existing activated sludge wastewater treatment processes.

The present application relates to the technical fields of cell bioengineering and regenerative medicine, and particularly relates to a mesenchymal stem cell aseptic engineering production device, which comprises a biological reaction tank, the sidewall of the biological reaction tank is provided with a liquid supplementing hole, the inner top wall of the biological reaction tank is fixedly connected with a fixing seat, the bottom of the fixing seat is provided with a driving assembly for outputting rotary power, the driving assembly comprises a gear ring, the bottom of the fixing seat is fixedly connected with a driving part, the output end of the driving part is coaxially fixedly connected with a first gear, the first gear is engaged with a plurality of second gears, the second gears are all engaged with the gear ring, and the second gears are all rotationally matched with fixing shafts, and the top ends of the fixing shafts are fixedly connected with the fixing seat. The present application drives the filter cage to rotate through the gear ring, drives the guide vanes to rotate through the rotating shaft, reduces the retention and accumulation of the cell carriers at the filter holes through the rotation of the filter cage, so that stable separation and drainage are realized in the long-period perfusion culture process, and the risk of filter unit blockage is reduced.

The application relates to the technical field of river aquatic organism behavior reaction monitoring, and discloses a river aquatic organism behavior reaction monitoring device and a monitoring method thereof. The river aquatic organism behavior reaction monitoring device comprises a body, a buoy is fixedly installed at the bottom of the body, a cavity is arranged in the buoy, and a conical cover is fixedly installed at the top of the body. The river aquatic organism behavior reaction monitoring device and the monitoring method thereof are used for better monitoring. When the device body is placed in a target river water area, the adjusting assembly is used in cooperation with a servo motor, a rotating shaft, a driving gear, a rotating drum, a driven gear, a fixed pipe, a bent pipe, an internal circular sliding rail, an internal sliding block, a controller, a hose and a monitoring box, so that the light source and the camera can work and rotate at the same time. In cooperation with a vertical rod, a wheel frame, a roller, a clamping block and a pipe clamp, the monitoring box can move more stably.

The present application belongs to the field of sewage treatment, and discloses a process parameter dynamic optimization system and method for activated sludge treatment. The system comprises a treatment system and an optimization system. The treatment system comprises a biological reaction section, a sludge-water separation section and a sludge return path. The biological reaction section is provided with an anaerobic and aerobic environment unit and a double biological reducing agent dosing unit. A physical crushing unit and a chemical oxidation unit are connected in series on the sludge return path. The sewage treated by biochemical treatment is separated by a secondary sedimentation unit. The return sludge is pretreated and then returned to the anaerobic unit. The online monitoring module of the optimization system collects key node operation parameters. The process control module dynamically generates real-time operation parameters of the pretreatment unit according to the load. By constructing a physical-chemical-biological three-in-one collaborative reduction system, the sludge reduction efficiency is improved, the organic matter impact load and the excessive inhibition of microorganisms by chemicals are avoided, the pretreatment energy consumption and chemical dosing are accurately controlled, and the reduction efficiency and system operation stability are considered.

The application discloses a high-efficiency denitrification biological reaction device, which comprises an anoxic module, an anaerobic module and an aerobic precipitation coupling module which are sequentially connected, the anoxic module and the anaerobic module are each provided with a hydraulic baffling component for conveying sludge water, and the sludge water of the aerobic precipitation coupling module is backflowed to the anoxic module via an aerobic tail gas power component; the aerobic precipitation coupling module can be used for separating clarified water, sludge water and tail gas; the biological reaction device is filled with activated sludge, the activated sludge contains denitrifying bacteria, phosphorus accumulating bacteria, nitrifying bacteria and aerobic bacteria, and the activated sludge is located at the bottom of the anoxic module, the anaerobic module and the aerobic precipitation coupling module; and the biological reaction device can efficiently treat sewage and has the characteristics of simple structure, small land occupation and low cost.

This disclosure relates to a novel bioreactor. The bioreactor includes: a main body, configured as a tank-shaped structure with a reaction chamber, the reaction chamber being provided with upper and lower partition layers and left and right partition layers. The upper and lower partition layers are configured to divide the reaction chamber into an anaerobic reaction chamber and a facultative and aerobic reaction chamber located above the anaerobic reaction chamber. The left and right partition layers are configured to divide the facultative and aerobic reaction chambers into a facultative and aerobic reaction chambers. The upper and lower partition layers are provided with an anaerobic outlet connecting the anaerobic reaction chamber and the facultative reaction chamber. The bottom of the left and right partition layers is provided with a water channel connecting the facultative and aerobic reaction chambers; an anaerobic three-phase separator; an aerobic three-phase separator; and a first aeration device. The bioreactor provided by this disclosure can be based on existing equipment, resulting in a smaller footprint, a more compact structure, and eliminating the need for additional denitrification equipment in the nitrogen removal process.