53results about How to "Improve aeration efficiency" patented technology

The invention discloses a membrane bioreactor for treating printing and dyeing wastewater, which comprises a membrane bioreactor for treating printing and dyeing wastewater. Comprising a reaction tank, a bracket horizontally arranged in the reaction tank, a plurality of membrane assemblies distributed on the bracket side by side, four baffles supported in the reaction tank and an aeration pipe extending to the lower part of the bracket, the four baffles are arranged on the peripheral sides of the membrane assemblies in a surrounding manner, and the aeration pipe is used for aerating towards the membrane assemblies; generated bubbles act on membranes of the membrane assembly, circulating flow flows upwards along the outer sides of the four baffles under the blocking action of the outer sides of the four baffles, a small part of flow descending area exists on the upper portions of the inner sides of the four baffles, gas phase distribution is widened through the four baffles, and the gas gathering phenomenon is relieved. According to the membrane bioreactor provided by the utility model, a gas phase generated by the aeration effect is uniformly distributed among the membranes, and the surface stress of the membranes is more uniform, so that the aeration efficiency of the membrane bioreactor is improved, and the operation energy consumption of the membrane bioreactor is further reduced.

The utility model provides a sewage treatment aeration device, which relates to the technical field of sewage aeration and comprises a sewage treatment tank, a support frame I is fixedly connected to the inner bottom of the sewage treatment tank, a sliding chute I is formed in one side of the support frame I, and a support frame II is fixedly connected to the bottom of the sewage treatment tank. A limiting frame and teeth are fixedly connected to the side, close to the first supporting frame, of the second supporting frame, the multiple teeth are arranged, the limiting frame is located on the outer sides of the teeth, a sliding block is slidably connected to one side of the second supporting frame, and a third sliding groove is formed in the sliding block and slidably connected with the second supporting frame; the air holes are cleaned in the rotating process of the bristles, so that sludge is prevented from being attached to the air holes, and the aeration efficiency is prevented from being influenced; the bristles rotate to drive sewage to be blown out of the water surface, the contact area of the sewage and air is increased, the aeration efficiency is improved, the supporting rods horizontally move in the sewage treatment pool in the rotating process, the sewage pool can be fully stirred, and the aeration effect is uniform.

The invention relates to the technical field of biological aeration filter tanks, in particular to a low-carbon environment-friendly sewage treatment system and a treatment method thereof.The low-carbon environment-friendly sewage treatment system comprises a filter tank provided with a first air pump and further comprises a lifting assembly arranged on the inner wall of the top end of the filter tank, and a connecting pipe is arranged at the bottom end of the lifting assembly; a first air guide pipe is arranged in the lifting assembly, one end of the first air guide pipe is communicated with a first air pump and used for guiding air, the other end of the first air guide pipe is communicated with a connecting pipe, the bottom end of the connecting pipe is rotationally connected with a plurality of aeration pipes around the circle center of the connecting pipe, the center positions of the aeration pipes are communicated, and the aeration pipes are communicated with the connecting pipe. A plurality of aeration nozzles are symmetrically communicated with the right upper parts of the two ends of the aeration pipe and are used for vertically and firstly buying to the right upper part for aeration, transverse high-pressure nozzles are symmetrically communicated with the right lower parts of the two ends of the aeration pipe and are used for providing a power source for rotation of the aeration pipe, and inclined high-pressure nozzles are symmetrically communicated with the right lower parts of the two ends of the aeration pipe and are used for aerating the lower part of the aeration pipe.

The present application relates to wastewater aeration technical field, specifically disclose a kind of aeration device for wastewater treatment, including: split piece one, split piece two and driving part, split piece one includes the split net of being able to intercept large bubble, split net is installed in aeration tank, split piece two includes the brush part one and brush part two rotationally connected in aeration tank, driving part is connected on aeration tank, driving part can drive brush part one and brush part two reverse rotation, to split into small bubble with large bubble, brush part one and brush part two are all in contact with split net, to make brush part one and brush part two can exert pressure to the large bubble that split net intercepts, to make large bubble pass through split net and split into small bubble;The aeration device for wastewater treatment of the present application can improve the aeration efficiency of wastewater, while through brush part one, brush part two and split net can extend the residence time of bubble in wastewater, further improve the aeration efficiency of wastewater.

This invention provides a multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator. An air inlet pipe and an air pipe are sequentially connected along the air inlet direction. A rapid microbubble cutting and diffusion oxygen dissolving unit is fitted outside the air inlet pipe. An inner cylinder and an outer cylinder are sequentially fitted outside the air pipe from the inside to the outside. The inner cylinder has a first inner cylinder section, a second inner cylinder section, and a third inner cylinder section sequentially along the air inlet direction. A medium-sized bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the first inner cylinder section, a large bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the second inner cylinder section, and an air guiding unit is installed on the outer wall of the third inner cylinder section. An air diffuser unit is installed at the air outlet of the air pipe. This multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator effectively cuts air into microbubbles, effectively solving the problems of clogging and short lifespan of traditional aerators after long-term use, and is suitable for aerobic aeration treatment.

This utility model relates to the field of aerator technology, specifically to a microporous aerator anti-clogging diffusion membrane assembly, comprising: a shell assembly, including a bottom shell and an upper shell connected to the bottom shell; a drive mechanism, which is disposed in the bottom shell and can be driven by the inflowing airflow to generate rotational power; a transmission assembly, including a magnetic transmission component that can be rotated and moved axially by the drive mechanism; utilizing a single air source power, an integrated transmission mechanism automatically realizes an orderly workflow of "thorough cleaning first, then efficient aeration"; it increases torque and controls speed by driving a gear set through airflow, driving the magnetic transmission component to rotate and rise precisely, initially closing the air path and driving a scraper to remove surface blockages, effectively reducing the start-up load and the risk of membrane damage, and then automatically opening the air path after rising to a predetermined position, and using a guide plate to generate swirling gas to evenly distribute gas and enhance the membrane's self-cleaning effect.

The application provides a biochemical pool air inlet adjusting method, which comprises the following steps: S1, replacing the air inlet pipeline of the biochemical pool with a transparent pipeline, and additionally arranging a monitoring assembly on the outer wall of the transparent pipeline; S2, synchronously collecting multi-dimensional real-time data at a fixed period at the corresponding position of the biochemical pool; S3, combining the predicted air demand with the valve characteristic curve to inversely deduce the corresponding reference value of the opening degree of the adjusting valve; S4, making the opening degree of the adjusting valve reach the corresponding reference value according to the reference value to complete the pre-adjustment; S5, calculating the opening degree correction coefficient by partition weighting according to the sensor data, and synthesizing the final target opening degree; S6, the adjusting valve automatically adjusts the opening degree of the adjusting valve according to the flow-ammonia nitrogen coupling prediction model and the opening degree correction coefficient; S7, the monitoring assembly regularly scans the transparent pipeline, and initiates backwashing when dust accumulates; and S8, combining the data self-learning every day, optimizing the flow-ammonia nitrogen coupling prediction model, improving the model precision, effectively improving the aeration efficiency, reducing the energy consumption, and simultaneously guaranteeing that the water quality meets the standard.

The present invention relates to the field of sewage treatment, and specifically to an anaerobic ammonium oxidation reactor and a wastewater treatment method and treatment system. The anaerobic ammonium oxidation reactor includes a reaction tube and a plurality of aeration units. The aeration unit uses a support frame to lift the diaphragm during aeration, and the elevation of the support frame is controlled by one-way inflation into the high-pressure air pipe. Under the action of the one-way valve, the high-pressure air pipe is inflated once and used throughout the whole process. There is no need to continuously provide the energy required to lift the diaphragm during aeration, thereby reducing energy consumption, saving energy and protecting the environment. At the same time, the support frame is an umbrella-shaped structure, which can evenly support the diaphragm, ensure that the aeration micropores are effectively opened, and improve the aeration effect and aeration efficiency; further, when the support frame is reset, the gas in the high-pressure air pipe is ejected toward the diaphragm through the support frame, and the support frame rotates to knock the rubber column. The ejected gas and the vibration of the rubber column jointly cause the diaphragm to vibrate, thereby avoiding being stuck by particulate matter before it is closed, and improving the service life of the diaphragm.

The invention provides a five-day biochemical oxygen demand sampling bottle, and belongs to the technical field of full-automatic analysis, the five-day biochemical oxygen demand sampling bottle specifically comprises a bottle body and a bottle cap, the bottle body is a dissolved oxygen bottle, a rotor is placed in the bottle body, the rotor is matched with a magnetic stirring device for use, a gas pipeline is nested on the bottle cap, and the upper end of the gas pipeline extends to the outer side of the bottle cap; the lower end of the gas pipeline extends to the bottle bottom, a self-locking pneumatic connector is arranged at the upper end of the gas pipeline, and the tripping end of the self-locking pneumatic connector is an aeration pipeline insertion opening. A honeycomb-shaped gas outlet head is arranged at the lower end of the gas pipeline, a first one-way valve is arranged in the middle of the gas pipeline and points to the inside of the bottle body, a through vent hole is formed in the bottle cap, and a second one-way valve is arranged in the vent hole and points to the outer side of the bottle body. According to the processing scheme, the labor cost is remarkably reduced, the personal error is reduced, and a solid foundation is laid for the accuracy and reliability of the BOD5 analysis result.

The utility model discloses an immersed hollow fiber ultrafiltration membrane component which comprises an upper seal head, a lower seal head and a stand column for connecting the upper seal head and the lower seal head, a water outlet is formed in the top of the upper seal head, a circle of boss is arranged at the bottom of the upper seal head, the tops of bundled membrane filaments are fixed on the boss, and a platform for fixing the bottoms of the membrane filaments is arranged on the lower seal head. A circle of lower side wall is formed above the periphery of the platform, a plurality of aeration grooves are formed in the platform, the bottoms of the membrane filaments are fixed on the platform by avoiding the aeration grooves, the platform is arranged at the bottom, the membrane filaments at the bottom can be directly inserted into the platform and then are directly fixed through glue injection, the fixing steps are simple, and the membrane filament fixing device is suitable for popularization.

The utility model discloses a rotary aeration device for sewage treatment. The rotary aeration device comprises a supporting column body, a waterproof driving device is fixedly arranged at the top of the supporting column body; an upper rotating disc body is fixedly arranged at the upper part of the waterproof driving equipment, an auxiliary frame body is fixedly arranged at the edge of the upper rotating disc body, a connecting pipe body is arranged at the lower part of a gas rotating joint, an aeration pipe body is arranged at the lower part of the connecting pipe body, and the aeration pipe body is fixedly connected with the middle lower part of the auxiliary frame body; the rotation of the auxiliary frame body drives the aeration pipe body to rotate in the sewage, and the dynamic aeration mode effectively increases the contact area between gas and the sewage, so that the aeration efficiency is remarkably improved; gas connectivity: through stable connection between the gas inlet pipe body and an external gas source and ingenious design of the gas rotating joint, a gas pipeline is allowed to be still communicated when the device rotates.

The utility model discloses a waste acid liquid treatment device in a 2-ethyl anthraquinone production process. The waste acid liquid treatment device comprises a neutralization tank, a Fenton oxidation pond and a biochemical pond which are communicated, a Fenton reagent liquid distribution pipe and a multi-layer annular water distribution pipe arranged on the outer side of the Fenton reagent liquid distribution pipe in a sleeving mode are arranged in the Fenton oxidation pond, a plurality of water outlet pipes with outlets facing the Fenton reagent liquid distribution pipe are arranged in the circumferential direction of the annular water distribution pipe, the multi-layer annular water distribution pipe is communicated with the water inlet pipe, and a catalyst packing layer is further arranged in the Fenton oxidation pond; the biochemical pool comprises an impurity removal area, an anaerobic area and an aerobic area which are communicated, an air outlet disc is arranged at the bottom of the aerobic area, the bottom of the air outlet disc is communicated with a buffer pipe, the buffer pipe is communicated with an air inlet pipe through a rotary joint, a driven gear sleeves the outer side of the buffer pipe, and the driven gear is also kneaded with a driving gear; the driving gear is driven by a first motor arranged on the outer side of the biochemical pool. The device is good in treatment effect, capable of effectively preventing the acid wastewater from polluting the environment and low in treatment cost.

The utility model discloses a novel tubular aerator belongs to tubular aerator technical field, this novel tubular aerator includes the guide pipe, fixed installation on the guide pipe fixed cylinder, set in the fixed cylinder top's aeration pipe, through the cooperation of above each device, through the setting of rotating mechanism, the sleeve lifts in the cylinder, compression spring, promotes the synchronous drop of connecting cylinder, and the top of connecting cylinder is communicated with aeration pipe to drive aeration pipe to drop, when the bottom of connecting cylinder touches the fixed column, the sleeve continues to drop, and the protruding block moves along the guide rail, makes connecting cylinder rotate ninety degrees, and aeration pipe also rotates ninety degrees, in the process of aeration pipe lifting, can realize the rotation function to reach the effect of all -round aeration, has guaranteed the uniform aeration of aerator, has effectively promoted the aeration efficiency.

The utility model discloses an aeration disc anti-clogging diffuser for sewage treatment, which comprises a bearing pipe body, an airflow diffusion mechanism is fixed on one side in the bearing pipe body, a rotating rod is rotatably connected in the airflow diffusion mechanism, a connector is fixed at one end of the rotating rod, and the other end of the rotating rod is connected with the bearing pipe body. The bearing pipe body is provided with a connector, four turbine blades are fixed to the circumferential side wall of the connector at equal intervals, four cleaning mechanisms are fixed to one end of the connector at equal intervals, a filter screen plate is installed at one end of the bearing pipe body, the cleaning mechanisms correspond to the filter screen plate, and a sealing head is connected to one end of the bearing pipe body in a threaded and screwed mode. According to the utility model, not only can the blocking rate of the pore passage of the aeration disc be effectively reduced, but also the quick disassembly and assembly can be carried out, the maintenance cost and time are greatly reduced, in addition, the aeration efficiency is further improved, the goal of sewage treatment can be better realized, the service lives of the aeration disc and related equipment are prolonged, and the frequency of equipment replacement is reduced.

This utility model relates to the field of wastewater treatment technology for galvanizing production lines, and discloses a wastewater recycling treatment device for galvanizing production lines. The device includes a connecting base, a reaction tank located on the left side of the top of the connecting base, an aeration tank located at the top of the connecting base, and a filter box located on the right side of the top of the connecting base. This wastewater recycling treatment device for galvanizing production lines includes a filter screen, a worm gear, and a second drive motor. When the second drive motor is started, it drives the worm wheel to rotate via the worm gear. The worm wheel, through a connecting shaft, drives an eccentric block to rotate. The rotation of the eccentric block can press against the bottom left side of the filter screen, causing the filter screen to tilt. This tilting allows impurities on the filter screen to slide into the collection box, preventing impurities from clogging the filter screen and affecting filtration efficiency and effectiveness. This solves the problem that filter screens are easily clogged by impurities when filtering wastewater, which easily affects filtration efficiency and effectiveness.

The utility model relates to the technical field of aeration equipment, and discloses a tubular aeration device which comprises a main pipeline, the rear end of the main pipeline is communicated and connected with a connecting pipe, the left side and the right side of the main pipeline are communicated and connected with branch pipes, and the tops of the branch pipes are communicated and connected with air outlet pipes. The outer sides of the top ends of the multiple air outlet pipes are fixedly connected with fixing discs, and the tops of the multiple fixing discs are in threaded connection with protection covers. Through the arrangement of the air outlet pipe, the groove and the bearing, the problems that energy consumption is increased, material aging is possibly accelerated, and the service life is shortened can be solved, the fixing ring is fixedly connected with the bearing inner ring, the turbine blades rotate to drive the fixing ring, and then the bearing inner ring rotates relative to the outer ring in the groove; therefore, the overall mixing effect in the tank is effectively improved, the biochemical reaction efficiency is improved, the shutdown maintenance requirement caused by blockage is reduced, and the manual cleaning frequency is reduced.

The utility model discloses a uniform aerator structure for sewage treatment, which relates to the technical field of sewage treatment, and comprises a fixed plate, the surface of the fixed plate is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with two bevel gears in mutual transmission. The bottoms of the two bevel gears in mutual transmission are fixedly connected with a driving assembly used for improving the aeration uniformity, and an aerator is arranged on the back face of the fixing plate. According to the uniform aeration machine structure for sewage treatment, through the arrangement of the filtering assembly, during aeration treatment, an aerator is connected with an external power supply, so that the aerator absorbs external air and conveys the air through a short pipe, and when the air passes through a filtering cylinder, the air is filtered by activated carbon filtering layers and is purified; meanwhile, dust particles in the air are filtered, so that the purity of the air entering the sewage is ensured, and the sewage treatment aeration efficiency is improved.

The invention relates to the technical field of sewage treatment, in particular to an aerobic sewage treatment tank aeration device and a treatment method.The aerobic sewage treatment tank aeration device comprises an aerobic tank and further comprises an air compressor, an aeration disc, a filter screen, a limiting mechanism, a clamping mechanism, a connecting plate and a spring; the clamping mechanism is arranged on the conveying pipeline, so that counter-acting force generated in the compressed air conveying process of the conveying pipeline can be transmitted to the clamping mechanism and transmitted to the connecting plate through the clamping mechanism, the connecting plate can compress the spring after being stressed, and at the moment, the spring can stretch out and draw back repeatedly due to the self-recovery function of the spring; reactive force generated in the compressed air conveying process can be removed through repeated stretching and retracting of the spring, so that the situation that the conveying pipeline is loosened when the conveying pipeline is subjected to the reactive force brought by the compressed air for a long time is avoided, the service life of the conveying pipeline is further guaranteed, and the aeration efficiency is improved.

The present invention belongs to the technical field of sewage treatment, and in particular, relates to a cyclone aeration device. The cyclone aeration device of the present invention includes an aeration tank, a gas pipeline, a driving mechanism and a cyclone mechanism. The gas pipeline is used to introduce gas into the sewage. The driving mechanism can drive the cyclone mechanism to rotate to change the flow direction of the gas in the sewage. The cyclone mechanism is arranged above the gas outlet. The cyclone mechanism includes a first driving frame and a stirring blade. The stirring blade is assembled on the first driving frame. The driving mechanism can drive the first driving frame and the stirring blade to move up and down and rotate synchronously to push the sewage and gas downward and radially outward. The cyclone aeration device of the present invention uses the stirring blade to push the sewage and the gas introduced from the gas outlet downward and outward, which prolongs the moving distance and residence time of the gas in the sewage, and effectively improves the aeration effect.

This invention belongs to the field of aquatic aeration technology, and specifically relates to an aeration and stirring device, comprising: a shell, a first aeration pipe, a stirring assembly, and a deceleration assembly; the first aeration pipe, the stirring assembly, and the deceleration assembly are disposed inside the shell, with the first aeration pipe located at the bottom of the shell, aerating the material inside the shell; the stirring assembly agitates the bubbles released by the first aeration pipe; the rotation of the stirring assembly drives the first aeration pipe to rotate; and the deceleration assembly makes the rotation speed of the stirring assembly greater than that of the first aeration pipe. By rotating the first aeration pipe, materials at greater depths can be fully aerated, while the rotation of the stirring assembly ensures that materials at less depths are fully aerated, resulting in uniform aeration of materials at different depths and improving aeration efficiency; the deceleration assembly makes the rotation speed of the first aeration pipe less than that of the stirring assembly, which facilitates the stirring assembly to fully agitate the bubbles released by the first aeration pipe into materials at less depths, improving oxygen utilization and increasing aeration efficiency.

The utility model discloses a kind of biogas slurry fertilizer aerobic fermentors, involve biogas slurry processing technical field.Its structure includes flatbed cart and the fermentation tank, air pump and sewage pump installed on flatbed cart;S-shaped arrangement's aeration gas guide pipe is arranged in the bottom of fermentation tank, and aeration gas guide pipe one end is connected with air pump air outlet after being through fermentation tank;Aeration gas guide pipe is equipped with several aeration heads;One row of hanging rods is fixed between one relative inner wall of fermentation tank upper end portion;One row of fiber bundle fillings is installed on hanging rod.The utility model is combined by flatbed cart, fermentation tank, air pump and sewage pump to strengthen microbial decomposition, improve biogas slurry quality and safety, guarantee biogas tank stable operation, promote resource utilization and handle substandard biogas slurry in time, maintain biogas tank inner microbial environment balance, guarantee biogas continuous and stable generation;Equipment is flexible and efficient, and strong adaptability, and operation is simple and convenient, maintenance cost is low, effectively solve rural biogas slurry processing problem.

The invention belongs to the technical field of water treatment, and particularly relates to an offshore thick oil high-temperature produced water treatment and reinjection system. In order to solve the problem that the impurity removal effect cannot meet the existing reinjection water requirement in the prior art, the invention provides an offshore thick oil high-temperature produced water treatment reinjection system which comprises an oil removal system and a fine filtration system which are communicated with each other, and one end, far away from the oil removal system, of the fine filtration system is further communicated with a membrane filtration system. The membrane filtration system comprises a membrane filtration raw water tank, a security filter, a high-temperature ultrafiltration device and a water injection buffer tank which are communicated in sequence, the membrane filtration raw water tank is communicated with the fine filtration system, and the water injection buffer tank is communicated with a water injection well. The membrane filtration system is arranged, produced water is finely filtered and then sequentially enters the membrane filtration raw water tank, the security filter and the high-temperature ultrafiltration device to be subjected to membrane filtration, the water treatment effect is remarkably improved, the reinjection or discharge requirement is met, and the filtered produced water can be directly injected into a water injection well.

The invention provides a biological drying bin with an auxiliary heating device and a control method thereof.The biological drying bin comprises a box body and a cover body arranged at the top of the box body, a driving motor is fixed to one side of the box body, an output shaft of the driving motor is in transmission connection with a stirring shaft penetrating through the box body, and the stirring shaft is rotatably arranged in the box body in a penetrating mode; a feed port is formed in the side, away from the driving motor, of the box body, and a discharge port is formed in the side, close to the driving motor, of the box body; the aeration assembly and the air exhaust assembly are arranged, the water content of materials in the box body is effectively reduced through the air exhaust assembly, meanwhile, oxygen brought into the box body through the aeration assembly helps to increase the amount of microorganisms in the materials, and meanwhile, the auxiliary heating device is arranged, so that the interior of the drying bin can be kept within the temperature range suitable for drying the materials; and the temperature of the auxiliary heating device can be correspondingly controlled and adjusted according to the real-time detection result of the temperature sensor, so that the drying application range is further widened, and the drying effect and the drying efficiency are improved.

The utility model relates to a rotatable tubular aerator, which comprises an aeration pipe part, a tubular aerator part and a rotating part, the aeration pipe part comprises an aeration branch pipe, a regulating valve and a connecting pipe, the tubular aerator part consists of tubular aerators which are uniformly distributed and a middle disc, and the rotating part comprises a motor, a supporting cross beam and a rotating shaft. The aeration branch pipes are connected with the aeration main pipe through the regulating valves, the aeration air volume can be regulated by the regulating valves, and the plurality of L-shaped tubular aerators are uniformly distributed in a circular array; the rotating shaft is connected with the motor and the tubular aerator part, the supporting cross beam maintains the structural stability of the whole device, and the rotating shaft drives the middle disc and the tubular aerator to rotate. According to the utility model, the rotation of the tubular aerator is realized through the rotating shaft, so that the aeration efficiency can be improved, a strong mixing and stirring effect is formed in the whole aeration tank, activated sludge is kept in a suspended state all the time, and meanwhile, the bottom of the aeration tank is not deposited.

The utility model discloses a novel aeration structure of a biochemical pool, which comprises a biochemical pool provided with an aerobic zone, an anoxic zone and an anaerobic zone. Furthermore, batten type microporous aerators are arranged at the bottom of the aerobic zone, and the aerators are distributed in the aerobic zone in a progressively decreasing manner, so that accurate regulation and control can be performed according to the oxygen demand of different zones of the aerobic zone; furthermore, a variable-speed vertical stirrer is arranged in the aerobic zone, the stirring speed of the stirrer is automatically adjusted according to the mixing requirement in the biochemical treatment process, and when enhanced denitrification is needed, aeration can be stopped, and only the stirrer is started; accurate regulation and control can be carried out according to the oxygen demand of different areas of the aerobic area, the aeration efficiency is improved, and the energy consumption is reduced.

The invention discloses a shallow aeration aerobic tank, and relates to the technical field of sewage treatment, the shallow aeration aerobic tank comprises an aerobic tank body, the aerobic tank body is of a hollow cylinder structure with a sealed bottom end and an open top end, and a water inlet pipe and a water outlet pipe which are communicated with an inner cavity of the aerobic tank body are arranged on the side wall of the upper part of the aerobic tank body; the air main pipe is arranged at the upper part of the top end opening of the aerobic tank body in parallel and extends along the radial direction of the aerobic tank body by taking the center of the aerobic tank body as a midpoint, and an oxygen supply pipeline for supplying oxygen to the interior of the aerobic tank body is arranged on the outer wall of the air main pipe. According to the invention, air blast aeration is adopted, the aeration depth is shallow aeration at the middle-upper part of the tank body of the aerobic tank, and the aeration depth is shallower than that of conventional aeration, so that the pressure of a fan can be relatively low, the energy consumption is low, and the aeration efficiency is high. At least one mechanical stirrer is installed in the aerobic tank body and used for preventing sludge on the lower portion of the aeration head of the aerobic tank from settling to the tank bottom and dispersing and evenly dissolving oxygen, the stirring contact area is enlarged through the mechanical stirring device, and stirring is even and stable.

The invention provides a multistage high-efficiency seawater recovery system for seawater desulfurization, and relates to the technical field of seawater desulfurization, the multistage high-efficiency seawater recovery system comprises an aeration tank, a plurality of layers of aeration areas are arranged in the aeration tank, a water inlet area is arranged at one end of the aeration area at the bottom layer, a backflow area is arranged at the communication part of two adjacent groups of aeration areas, and a water outlet area is arranged at the other end of the aeration area at the bottom layer. A drainage area is arranged at one end, far away from the backflow area, of the aeration area on the top layer; longitudinal partition walls are arranged in the aeration area in the water flow direction and divide the aeration area into a plurality of independent flow channels, and a first-stage aeration device is arranged on the lower portion of the interior of the aeration area on the bottom layer. Two or more layers of aeration areas are arranged in the aeration tank in the vertical direction in a folding manner, so that the aeration air is gathered and then is repeatedly utilized in a gradient manner, the aeration efficiency of the air can be greatly improved, the utilization efficiency of the air is improved, the required air volume is greatly reduced, the total energy consumption of the aeration system can be greatly reduced, and the energy-saving effect is realized.

The utility model relates to the technical field of sludge treatment, in particular to an air flotation concentration device for PTA chemical wastewater biochemical excess sludge, and solves the problem that an original horizontal-flow sludge concentration tank is poor in concentration effect on the PTA chemical wastewater biochemical excess sludge. The coagulation reaction tank comprises a first-stage coagulation reaction tank, a second-stage coagulation reaction tank and a water distribution area which are communicated with one another; stirrers are arranged in the two coagulation reaction tanks; the cavitation aeration tanks are connected with the coagulation reaction tank through holes, and each cavitation aeration tank is provided with a cavitation aerator; the air flotation separation tank is communicated with each cavitation aeration tank; the top of the tank is provided with a plurality of slag scrapers, and the bottom is provided with a plurality of sludge discharge buckets; a scum collecting tank is arranged at one end far away from the cavitation aeration tank, and a scum scraping inclined bank is connected to the scum collecting tank; the scum collecting tank is provided with a scum discharge port; and a water outlet is also formed in the side wall of the tank. The treatment process is simple, the adaptability is high, the treatment efficiency is high, the operation is stable, the energy consumption is low, the automation degree is high and the operation is continuous.

The utility model discloses an aeration device for livestock and poultry breeding sewage treatment, belongs to the technical field of sewage treatment, and aims to solve the technical problems of non-uniform aeration and difficulty in sludge cleaning in breeding sewage treatment in the prior art. The livestock and poultry breeding sewage treatment aeration device comprises an air supply main pipe, one end of the air supply main pipe is provided with an aeration fan, and the aeration fan conveys air into the air supply main pipe; the multiple air supply branch pipes are arranged side by side, each air supply branch pipe communicates with the air supply main pipe, and a control switch is arranged at the joint of each air supply branch pipe and the air supply main pipe; the air supply main pipe and the air supply branch pipes are arranged on the support; a plurality of aeration pieces are arranged below each air supply branch pipe side by side. The livestock and poultry breeding sewage treatment aeration device can be used for aerating different positions in a sewage pool, widening the aeration range of sewage and improving the aeration efficiency, and meanwhile, the sludge is forced to move towards one side by virtue of aeration circulation impact, so that the sludge is convenient to clean.

The utility model relates to the technical field of sewage treatment, and discloses an efficient aeration balloon which comprises a sphere, fixed pipes arranged at equal intervals are fixedly inserted into the sphere, the outer circumferential surface of each fixed pipe is slidably sleeved with an aeration disc, and aeration pipes arranged at equal intervals are fixedly inserted into the aeration discs. According to the efficient aeration ball, a large number of aeration pipes and aeration holes are arranged, so that the aeration efficiency is improved, when oxygen injection is stopped, a spring pushes a sliding block to move back, so that the aeration holes can be automatically blocked, a control rod drives a positioning rod to move during rotation, and a mounting plate and an aeration disc can be disassembled; the aeration balloon has the advantages that the aeration holes are effectively prevented from being blocked, the aeration structure is convenient to disassemble and maintain, the aeration efficiency of the aeration balloon is improved, and the problems that the aeration holes of an existing aeration balloon are prone to being blocked by dirt during operation, normal aeration operation is affected, the aeration efficiency is reduced, and the aeration structure is inconvenient to disassemble and maintain are solved.