31 results about "Oxygen transfer" patented technology

This invention discloses a wastewater treatment bioreactor, primarily relating to the technical field of bioreactors. It includes a reaction tank with an inlet and an outlet at the bottom and top, respectively. An aeration tank is located at the top of the reaction tank, containing several aeration pipes. A biofilm is located at the bottom of the aeration tank. The tops of the aeration pipes pass through the reaction tank and connect to it. An air inlet is located on the aeration tank. A movable frame is vertically slidably connected inside the reaction tank, and several rotating blocks, fitted around the aeration pipes, are rotatably connected to the movable frame. Several first brushes, which cooperate with the aeration pipes, are located on the inner sides of the rotating blocks. The beneficial effects of this invention are: solving the problem of membrane pores being easily clogged, hindering oxygen transfer; improving the oxygen transfer efficiency and aeration effect of the membrane module; improving pollutant removal efficiency; and ensuring the quality of the reactor effluent.

The invention discloses a multistage pretreatment-enhanced biochemical coupled high-fluctuation chemical sewage treatment system, which relates to the technical field of sewage treatment, and comprises a negative pressure monitoring module, a bubble phase analysis module, a bubble blockage identification module, a ventilation control planning module and a reverse ventilation regulation module, a negative pressure change signal is collected at a water inlet end of the sewage treatment system, a synchronous change curve of a gas flow signal and a liquid flow signal is extracted, a complete operation time chain is formed according to an operation time sequence, and a negative pressure characteristic curve is generated according to the operation time chain to establish a pressure fluctuation monitoring reference. Real-time regulation and control of gas-liquid flow are achieved through negative pressure monitoring and bubble phase analysis, and oxygen transfer stability and dissolved oxygen balance are improved; through bubble blockage identification, ventilation control planning and reverse ventilation adjustment, the gas flow direction and the exhaust rhythm are optimized, blockage and pressure accumulation are prevented, and continuous and stable operation of the high-fluctuation sewage treatment process is ensured.

The application discloses an aeration dynamic balance digital control method and system for coping with flow state distortion, relates to the technical field of sewage treatment, and comprises the following steps: constructing a sewage treatment aerobic tank multi-point dissolved oxygen and flow state synchronous monitoring system, continuously collecting spatial distribution data of dissolved oxygen, water flow velocity and density in the tank, and generating a flow state distribution graph reflecting the flow state distribution characteristics in the tank; based on the flow state distribution graph, the collected water flow velocity gradient and dissolved oxygen difference are subjected to collaborative feature extraction, and an abnormal area with flow state distortion is identified. Through multi-point monitoring and dynamic weighted control, the application realizes real-time identification of the flow state of the aerobic tank and accurate regulation of the air quantity, maintains the balance of the dissolved oxygen distribution, improves the oxygen transfer efficiency and the operation stability; by introducing a fluid correction factor and a time sequence prediction model, a control closed loop with self-learning and energy-saving optimization capabilities is established, and the intelligence and economy of the aeration process are improved.

The present application relates to a kind of circadian rhythm-based circulating water aquaculture fish pond dissolved oxygen mechanism modeling method, including the influence of fish respiration consumption, water surface atmospheric reoxygenation, circulating water flow, mechanical aeration factor on dissolved oxygen dynamic change;According to oxygen transfer equation, considering the influence of the above four factors on fish pond dissolved oxygen, the dissolved oxygen mechanism model of circulating water aquaculture fish pond is established;Combined with oxygen transfer equation and the characteristics of fish respiratory activity changes between day and night, the influence of fish respiratory circadian rhythm on the model is analyzed, and the model is verified.The present application can more accurately reflect the high and low peak value in different time periods and also capture the dynamic changes presented in the whole cycle, and effectively avoid the loss and risk caused by the inaccurate model description to the aquaculture industry in extreme breeding environment or abnormal environment.

The application provides an industrial wastewater denitrification pollution treatment equipment operation state intelligent monitoring system, and belongs to the technical field of wastewater denitrification pollution treatment. The industrial wastewater denitrification pollution treatment equipment operation state intelligent monitoring system is characterized in that it comprises a dissolved oxygen collection module, which collects dissolved oxygen concentration data of each spatial sampling point in real time; an oxygen spectrum generation and identification module, which is used for mapping the dissolved oxygen concentration data to a three-dimensional spatial coordinate system corresponding to a target nitrification tank, and constructing an oxygen spatial distribution spectrum of the target nitrification tank; an analysis and calculation module, which constructs an oxygen demand load factor; and a comprehensive analysis module, which is used for correlating the oxygen consumption factor and the oxygen demand load factor, constructing an oxygen transfer efficiency factor, and performing evaluation and optimization. Through layering of the water body and adjustment of the Roots blower air supply, precise oxygen supply is realized, and energy waste and denitrification efficiency reduction caused by excess or insufficient oxygen are avoided.

The application relates to a sewage aeration energy-saving control method based on oxygen transfer efficiency coupling constant DO, and relates to the field of sewage treatment. The method comprises the following steps: carrying out multi-factor clean water aeration test, fitting the relationship between the aeration quantity Q A and the oxygen transfer efficiency OTE, constructing a basic OTE control algorithm; collecting basic data of a sewage aeration system, optimizing and formulating a targeted OTE control curve, and embedding a reasonable dissolved oxygen DO range to couple a constant DO control strategy; determining the aeration quantity Q A_OTE based on the OTE control curve, and comparing the energy-saving benefits with the aeration quantity Q A_DO under the constant DO control strategy; and adjusting the aeration fan power consumption and the aeration pipeline flow distribution by selecting the optimal Q A . The method couples the constant DO control strategy by formulating the OTE control curve, controls the aeration quantity Q A in a reasonable range, and achieves the stable and energy-saving targets.

The invention discloses an excrement sampling and collecting device, belongs to the technical field of excrement sampling devices, and aims to solve the problems that a sample is easy to contact and react with air from sampling to transferring, the accuracy of a subsequent detection result is influenced, and a sampling part and a collecting part cannot be isolated from oxygen when multiple and massive sampling is carried out. The device comprises a collection tank and a mounting seat fixed to the middle of the upper portion of the collection tank, a mounting sleeve is mounted in the mounting seat, and a sampling mechanism is slidably arranged in the middle of the inner side of the mounting sleeve. According to the invention, the movable pinch-off mechanism is arranged on the sampling mechanism, so that the excessive adhesion part during extraction of the sampling mechanism can be moved and pinched off, the possibility of adhesion is avoided, when the sampling mechanism is subsequently transferred, the possibility of dripping and contact with air of a sample remained in an interlayer on the innermost side of the sampling mechanism is avoided, and anaerobic transfer can be realized, so that the accuracy during sample detection is ensured.

The utility model discloses a kind of gradient porosity MABR membrane silk assembly structures, including tube sheet, the bottom of the tube sheet is fixedly installed with hydrophobic layer, the inner wall of the hydrophobic layer is fixedly attached with vertical support layer, the hydrophobic layer and vertical support layer are all perforated with air hole, the inside of the vertical support layer is perforated with through hole, the diameter of the straight hole of the one end of tube sheet close to through hole is larger by being set, the one end of tube sheet is gas inlet end, so the gas pressure of the one end of tube sheet close is smaller, the diameter of the through hole of far away gas inlet end is smaller, so the passage cross-sectional area of the one end of tube sheet close is reduced, gas compression leads to gas pressure greater than gas inlet end, so the oxygen content dissolved into external water in unit time will rise, compensate terminal biofilm due to biofilm thickening leads to dissolved oxygen content low Problem, the air hole density of gas outlet end is larger, enhance the oxygen diffusion capacity of terminal, compensate oxygen transfer attenuation due to biofilm thickening, avoid terminal anoxia, promote outer layer denitrifying bacteria enrichment.

The application discloses a system and method for preparing CO gas by CO2 carbon-free deoxidation, a steelmaking induction furnace is transformed into a closed gas making furnace, CO2 or industrial tail gas containing high concentration CO2 is taken as raw gas and is introduced into an oxygen-saturated iron-based melt at 1600-1800 DEG C through a bottom blowing element, high concentration CO gas is prepared, FeO deoxidation product of CO2 is migrated to a slag phase and oxygen removal and iron reduction regeneration are realized through an external electric field mode, a new method for preparing CO by CO2 carbon-free deoxidation is constructed with the oxygen-saturated iron-based melt solute iron element as an oxygen transfer medium, meanwhile, the energy required by CO2 decomposition endothermic and molten slag electrochemical reduction can be generated through photovoltaic, wind, hydraulic or nuclear power generation devices, green electricity is used as an energy carrier to realize efficient quality-energy conversion of CO2 and CO under the condition of no additional carbon input, a carbon neutral cycle process of steel-chemical cogeneration coupling is opened up, and the application has good application and development prospect.

This application relates to a monitoring method, apparatus, computer equipment, and storage medium for fermentation equipment. The method includes: monitoring the current stirring speed and current aeration rate of the fermentation equipment; determining the target oxygen transfer rate per unit volume for the fermentation equipment based on the current stirring speed and current aeration rate; and displaying the current stirring speed, current aeration rate, and the corresponding target oxygen transfer rate per unit volume on the fermentation equipment, wherein the target oxygen transfer rate per unit volume reflects the current fermentation efficiency and quality of the fermentation equipment. Using this method, the fermentation efficiency and quality of the fermentation equipment can be accurately reflected through the target oxygen transfer rate per unit volume.

Provided is an ozone supply device comprising: a plurality of ozone generators (3a, 3b, 3c) that generate ozone from supplied oxygen; adsorption devices (41a, 41b) that are provided in a smaller number than the total number of the ozone generators (3a, 3b, 3c) and that separate, from a mixed gas that is supplied from the ozone generators (3a, 3b, 3c) and that is composed of oxygen and ozone, oxygen contained in the mixed gas by adsorbing ozone; oxygen transfer devices (42) that are provided in a smaller number than the total number of the ozone generators (3a, 3b, 3c) and that transfer oxygen separated from the mixed gas by the adsorption devices (41a, 41b) to the ozone generators (3a, 3b, 3c); first shared piping (10a) for connecting, in a shared manner, the outlet side of the oxygen transfer devices (42) and the inlet side of the ozone generators; and second shared piping (10b) for connecting, in a shared manner, the inlet side of the adsorption devices (41a, 41b) and the outlet side of the ozone generators.

To provide an ozone supply device improved in energy saving, and an operation method of the ozone supply device.SOLUTION: A plurality of ozone generators (3a, 3b, 3c) configured to generate ozone from the supplied ozone; the ozone is supplied from the ozone generators (3a, 3b, 3c); An adsorption unit (41a, 41b) configured to adsorb ozone from a gas mixture composed of air and ozone to separate air from the gas mixture, an air transfer unit (42) configured to transfer air separated from the gas mixture by the adsorption unit (41a, 41b) to an ozone generator (3a, 3b, 3c), and a first common pipe (10a) configured to commonly connect an outlet side of the air transfer unit (42) and an inlet side of the ozone generator; And a second common pipe (41a) commonly connecting an inlet side of the adsorption device (10b, 41b) and an outlet side of the ozone generator.SELECTED DRAWING: Figure 2

The utility model discloses a combined stirring device for sewage treatment. The combined stirring device comprises an assembling bracket, a driving motor, a stirring rotating shaft and an air supply device, the driving motor is in transmission connection with the stirring rotating shaft, and the stirring rotating shaft is connected with the stirring assembly, provided with the aeration assembly and connected with the air supply device. And the bottom end of the rotating shaft is connected with the base. The stirring assembly comprises a first transverse connecting part, a second transverse connecting part and a vertical stirring rod, and an aeration pipe of the aeration assembly is arranged on the second vertical stirring rod and is connected with an air supply disc and an air supply device through an air supply connecting hose and a rotary air supply structure. The second transverse connecting part is provided with a telescopic rod piece and a driving structure. And a guide plate is arranged at the bottom end of the rotating shaft. The device adopts the combination of fixed and adjustable movable stirring structures and the ingenious arrangement of the aeration pipe, realizes the synchronization of stirring and aeration, overcomes the problems of stirring dead angles, low efficiency, poor aeration and the like of the existing stirring device, improves the efficiency and quality of oxygen transfer and sewage treatment of the aerobic reaction tank, and has remarkable technical and application values.

The invention discloses an efficient cyclone aeration energy-saving treatment system for pulping and papermaking wastewater. The efficient cyclone aeration energy-saving treatment system comprises an aeration tank, array aerators, an oxidation decoloration tank, a first anti-corrosion air supply manifold, a high-pressure air supply nozzle and an activated carbon filter layer, a tank cavity is formed in the aeration tank, array aerators are uniformly arranged on the inner surface of the bottom in the tank cavity, and a discharge port is formed in the inner wall of one side of the upper end of the tank cavity; modular design is adopted, deep purification and stable operation of pulping and papermaking wastewater are achieved through system overall structure optimization and core assembly collaborative design, aerators arranged in the aeration tank in an array mode can form a spiral ascending flow state and a bottom negative pressure entrainment effect on the basis of the fluid dynamics principle, and the aeration effect is improved. The particle size of bubbles is effectively refined, the gas-liquid contact time is prolonged, the oxygen transfer efficiency is greatly improved, and the uniform distribution of dissolved oxygen in the tank can be ensured through the distributed layout of multiple groups of anti-corrosion gas supply manifolds and high-pressure gas supply nozzles in the oxidation decoloration tank.

The invention discloses a power distribution network voltage collaborative optimization method considering the load of an oxygen pumping machine, and the method comprises the steps: 1, building a reference model of the active power of the load of the oxygen pumping machine, and building a dynamic correction model of the active power of the load of the oxygen pumping machine by considering the influence of water temperature and water depth; 2, establishing a dissolved oxygen kinetic model, a relationship between the mechanical oxygenation rate of the load of the oxygenator and the standard oxygen transfer rate, and a dissolved oxygen concentration safety constraint; 3, establishing a power flow model of the power distribution network; 4, establishing an oxygen pumping machine control-water quality dynamic-power grid voltage cooperative control model and a target function; and 5, solving the cooperative control model to obtain node voltage and photovoltaic output which enable the dissolved oxygen concentration of the aquaculture pond to be maintained in a safe range. According to the method, the collaborative model containing the load of the oxygen pumping machine can be constructed, so that accurate control and optimal scheduling of the power distribution network-aquaculture pond system are realized.

The application relates to the technical field of wastewater treatment, in particular to a biological purification device for sweater production wastewater, which comprises an aeration tank, the inside of the aeration tank is provided with a liquid level sensor, suction pipes are arranged on the two sides of the aeration tank, fixed plates are fixedly connected in the suction pipes, double-shaft motors are fixedly connected to the outer side walls of the fixed plates, transmission rods and driving rods are respectively connected to the two side output ends of the double-shaft motors, and a filtering and humidifying mechanism is arranged. When the suction fan sucks air, the air is filtered and humidified first, the filtered and humidified air is introduced into the aeration tank, the aeration device is not blocked due to impurities in the air, and the air density is reduced by the appropriate humidification, so that the air is more easily contacted and mixed with water, the oxygen transfer efficiency is improved, the aerobic organisms in the aeration tank can more efficiently adsorb impurities, and the biological purification effect is improved.

The invention discloses an integrated MABR + MBR combined process which comprises main equipment and is characterized in that the main equipment comprises a pretreatment unit, an integrated reactor (an MABR area), an integrated reactor (an MBR area) and an auxiliary unit, and aeration membrane equipment and separation membrane equipment are arranged in the main equipment; the pretreatment unit comprises a mechanical grid, an adjusting tank stirrer, a pH adjusting and adding device and a lifting pump. According to the integrated MABR and MBR combined process, micropores of an aeration membrane are used for discharging air, the oxygen transfer rate can reach up to 50-55% (50-70% or more electric energy is saved compared with that of traditional aeration), the survival rate of microbial flora in a tank is higher due to the efficient dissolved oxygen environment, and the number and variety of dominant flora are kept more balanced; meanwhile, double or multiple superposition of the MABR membrane wires is utilized, so that micro-nano bubbles (the diameter of the bubbles is about 10-30nm) collide and are superposed into large bubbles in the floating process, and the MBR membrane wires are directly impacted and oscillated, so that the traditional perforation aeration purging function is replaced.

Disclosed are a dissolved oxygen control method and a dissolved oxygen control device for wastewater treatment. The dissolved oxygen control method comprises: obtaining an ammonia nitrogen content measurement value of effluent from an aerobic zone; determining a compensated oxygen demand based on the ammonia nitrogen content measurement value of the effluent from the aerobic zone and a set value of the ammonia nitrogen content of the effluent from the aerobic zone; determining an actual saturated dissolved oxygen value based on water temperature in the aerobic zone, an oxygen transfer efficiency of a blower and an installation depth of an aeration disc; and determining a compensated gas quantity based on the compensated oxygen demand and the actual saturated dissolved oxygen value. Thus, the dissolved oxygen control method and the dissolved oxygen control device for wastewater treatment according to the embodiments of the present disclosure can control the air volume of the blower when needed, achieving fine control. In addition, the dissolved oxygen control method and the dissolved oxygen control device for wastewater treatment according to the embodiments of the present disclosure can be automatically executed through automatic control technology, thus reducing manual intervention and reducing overall energy consumption.

This invention discloses a self-reducing flow rate magnetized oxygen- and nitrogen-enriched microporous aeration device, belonging to the field of water treatment technology. The device mainly consists of an air pump, an air inlet, a buffer cylinder, a magnetized nitrogen-oxygen separation device, and a microporous aeration disc. Its core lies in utilizing the difference in the effect of a magnetic field on gas molecules to achieve oxygen-nitrogen separation: air is decelerated and stirred by a slow-moving fan inside the buffer cylinder before entering the underwater magnetization device. The device employs a Halbach array of magnetic rings arranged in conjunction with a U-shaped inner liner to form a high-gradient magnetic field and swirling airflow, prolonging the time the gas is magnetically acted upon. This causes oxygen to accumulate around the magnetic poles, while nitrogen moves towards the pipe wall and enters the hollow floating disc through the nitrogen pipe, providing buoyancy for the device. A specially designed oxygen separation intake port draws in the enriched oxygen, which is then released through a one-way baffle into the microporous aeration disc. This invention significantly improves oxygen transfer efficiency and reduces energy consumption through underwater magnetization to stabilize temperature and structural innovation to reduce flow rate, solving the problems of low efficiency and equipment corrosion in traditional aerators.

The invention relates to the technical field of fishery energy internet, in particular to a fishery breeding district aerator load modeling method, which comprises the following steps: analyzing oxygen transmission efficiency according to environmental parameters of each dimension, and obtaining the aeration rate of an aerator configured in a fishpond by combining the difference between the water saturation dissolved oxygen concentration and the dissolved oxygen concentration at the current moment; constructing an oxygen content change differential equation according to the oxygenation rate of an aerator arranged in the fishpond and the natural oxygen consumption condition in the fishpond; based on the oxygen content change differential equation, solving to obtain the starting duty ratio of the aerator; and constructing a load data model of the aerator based on the rated power and the duty ratio of the aerator configured in the fishpond. And finally, based on the refined model, quantitatively analyzing and mining the flexible regulation potential of the load of the aerator. The model established by the method is closer to the actual operation condition, and the interruptible and adjustable flexible nature of the load of the aerator is deeply revealed.

The utility model relates to the technical field of efficient sewage treatment aeration tanks, and discloses an efficient sewage treatment aeration tank which comprises an aeration tank main body, a sunshade is arranged at the top of the aeration tank main body, mixing components are arranged inside and at the bottom of the aeration tank main body, and each mixing component comprises a motor and a fan, a motor is connected with a first belt wheel through a driving rod, a mixing assembly is arranged, a worker starts the motor to drive multiple groups of stirring rods on three groups of connecting rods to synchronously rotate, sewage and activated sludge in the aeration tank main body are fully stirred and uniformly mixed, meanwhile, a fan is started, air enters a branch pipe through a conveying pipe and a connecting pipe, and the sewage and the activated sludge are uniformly mixed. The air is uniformly distributed, so that the contact area between the sewage and the air is increased, the oxygen transmission efficiency is improved, stirring and aeration are coordinated, a suitable living environment is created for microorganisms, the metabolism of the microorganisms is activated, and the sewage treatment efficiency is greatly improved.

The application discloses a kind of aerator clean water oxygen transfer performance determination methods based on oxygen transfer efficiency detector, including preparation process and test process: preparation process: set to be measured aerator, check whether system is air leakage, and confirm whether the air supply capacity of air blower meets the test demand, confirm test condition;Test process: add catalyst, measure clean water dissolved oxygen concentration, add excess anhydrous Na2SO3, open air blower, wait for clean water to be completely oxygen depleted, slowly increase air blower frequency, confirm the preset value of aerator ventilation AFR, with oxygen transfer efficiency detector in sequence determination each AFR set value corresponding oxygen transfer efficiency OTE, and record test data;After testing, draw aerator OTE-AFR curve, confirm the clean water oxygen transfer performance of aerator under different ventilation conditions.The application can greatly reduce the labor cost of aerator clean water oxygen transfer performance test work, reduce air blower power consumption, and improve the accuracy of test results.

The utility model provides a fermentation tank for producing an enzyme preparation, which is characterized in that a first compressed air distributor, a second compressed air distributor and a plurality of aeration pipes are arranged at the bottom in a tank body, and the two ends of the aeration pipes are respectively communicated with the first compressed air distributor and the second compressed air distributor; therefore, oxygen in the air inlet pipe is uniformly distributed into each aeration pipe through the first compressed air distributor and the second compressed air distributor, and is released into fermentation liquor in the form of tiny bubbles through the aeration holes of the aeration pipes, so that the gas-liquid contact area is obviously increased, the oxygen transfer efficiency is enhanced while the dissolved oxygen uniformity is improved, and the fermentation efficiency is improved. Furthermore, each area in the tank body can obtain sufficient oxygen supply, so that the fermentation efficiency is effectively improved; meanwhile, the bumps are arranged at the top ends and the bottom ends of the stirring blades, so that the turbulent flow of the stirred liquid can be enhanced, the stirring effect is further improved, the materials are mixed more uniformly, and the oxygen dissolving rate of the materials in the tank body is improved, thereby improving the fermentation effect.

The utility model relates to sewage treatment technical field, and disclose a kind of sewage treatment aeration equipment with waste heat recovery function, including pipe body, the top of pipe body is equipped with air blower, the outside of pipe body is equipped with several aeration pipes by bottom end, the outside of aeration pipe is equipped with several aeration disc, the outside of pipe body is equipped with heat exchange subassembly by top end, the outside of pipe body is equipped with stirring subassembly by bottom end, the heat exchange subassembly includes protective sleeve, the protective sleeve is sleeved in the outside of pipe body, the outside of pipe body and the inside of protective sleeve are surrounded by spiral pipe, the top of spiral pipe is connected with inlet pipe, and solenoid valve is installed at the connecting place of inlet pipe and spiral pipe. By spiral pipe and solenoid valve, it is convenient for the recycling of pipe body heat, the temperature after water body heat exchange can be monitored, the delivery of water body is facilitated to control;Through stirring blade, aeration can be uniformly dispersed, and oxygen transfer efficiency is improved.

The utility model discloses a gypsum wet desulphurization system which comprises an absorption tower and a flue gas heat exchanger, an oxidation pond is arranged at the lower end of the absorption tower, a first material conveying pipe and a second material conveying pipe are arranged between the absorption tower and the oxidation pond, a circulating pump is arranged on the first material conveying pipe, and a plurality of spraying pipes are arranged at one end of the second material conveying pipe. An oxidation fan is arranged at the bottom of the oxidation pond through an oxygen conveying pipe, a limestone slurry silo is arranged on one side of the bottom of the oxidation pond through a third material conveying pipe and a material conveying pump, a smoke inlet pipe and a smoke exhaust pipe are arranged on the two sides of the absorption tower respectively, and one end of the smoke inlet pipe and one end of the smoke exhaust pipe are both communicated with the smoke heat exchanger. The absorption tower can integrate absorption and oxidation functions, the upper part is an absorption area, the lower part is an oxidation area, raw flue gas subjected to dust removal is in reverse contact with circulating slurry in the absorption tower, is fully absorbed and then is discharged, and meanwhile, a countercurrent air spraying tower is adopted, so that the diameter of the absorption tower is greatly reduced, parts in the tower are greatly reduced, and the scaling possibility is reduced.

The utility model relates to, in particular to a reaction tank for sewage treatment engineering, which comprises a main body mechanism, a control mechanism and a stirring mechanism, the control mechanism is positioned outside the main body mechanism, and the stirring mechanism is positioned inside the main body mechanism. A transmission shaft is driven by a first motor, a micropore aeration pipe is used for aeration in sewage to increase mixing and stirring of sludge and the sewage, the oxygen transfer efficiency and mixing uniformity are improved, meanwhile, a sludge scraping plate inclined by 45 degrees is arranged below the transmission shaft, and the sludge sinking to the bottom is scraped up to increase the reaction time and the reaction speed with sewage newly entering from the upper portion. The second motor below is controlled in real time through the control panel to adjust the backflow amount of sludge, excessive sludge accumulation or loss is avoided, reacted sewage flows into a next program pool through the water outlet in one side of the reaction pool, meanwhile, the monitoring sensor is arranged at the water outlet to monitor whether the water quality reaches the standard or not, and the control panel adjusts the aeration amount in real time.

The invention belongs to the technical field of desulfurization slurry oxidation, and particularly relates to a desulfurization slurry oxidation optimization system and an optimization method and application thereof. The desulfurization slurry oxidation optimization system comprises an absorption tower, a strong oxidation pond, a plurality of spray pumps and an oxidation fan, the absorption tower is connected with the strong oxidation pond; the plurality of spraying pumps are connected in parallel; an inlet of the spraying pump is connected with the strong oxidation pond, and an outlet of the spraying pump is connected with the absorption tower; and the oxidation fan is connected with the strong oxidation pond. According to the desulfurization slurry oxidation optimization system provided by the invention, the aerator adopts the liftable microporous aeration pipe and is provided with the EPDM microporous aeration film. The microporous aeration membrane is used for aeration, bubbles are fine, the specific surface area is larger, the oxygen transfer efficiency is higher, and the oxidation efficiency and effect on calcium sulfite in the slurry are better. On the basis, under the condition of oxidizing the same slurry, the required air quantity is less, a fan with smaller air quantity can be matched, and the investment and operation cost is saved.

The application discloses a high-void-ratio filler artificial wetland enhanced denitrification method and device, aiming at selecting light materials and constructing high-low-high gradient resistance layers, inducing flow velocity differentiation to form oxygen concentration fluctuation zones, creating favorable conditions for deep nitrification, cultivating function switching type microorganisms with nitrification-denitrification bidirectional conversion capacity, establishing seasonal bacterial population switching mechanism and complementary symbiotic network, and adapting to annual temperature changes, designing multi-point distributed water supply to form river branch type water flow path, realizing bionic water flow distribution, utilizing water level periodic change of pulsating water to drive internal gas exchange of the filler, forming tidal respiration effect, and realizing deep oxygen supply without mechanical aeration, and based on intermittent operation schedule, real-time monitoring is carried out, and operation parameters are dynamically optimized. The application overcomes the problems of oxygen transfer limitation and seasonal performance fluctuation of traditional artificial wetlands, and provides a low-energy-consumption and high-stability technical scheme for nitrogen-containing wastewater treatment.

The present application provides a kind of aeration adjustment device and method for sewage treatment, the aeration adjustment device is used on reactor, the aeration adjustment device includes aeration mechanism being arranged on the reactor and driving mechanism for driving the aeration mechanism to operate.The present application adjusts the distance between pulse aeration pipe and microporous aeration pipe to adjust dissolved oxygen in water, when pulse aeration pipe and microporous aeration pipe are very close, the micro-bubbles spouted from microporous aeration pipe are collected by pulse aeration pipe to form large bubbles, which reduces oxygen transfer efficiency, and the concentration of dissolved oxygen is low, when pulse aeration pipe and microporous aeration pipe are far apart, the micro-bubbles spouted from microporous aeration pipe are fully contacted with sludge-water mixture before being collected by pulse pipe to form large bubbles, at the same time, due to the space between them is larger, part of the micro-bubbles diffuse outside the collection range of pulse aeration, so that the micro-bubbles in the whole reactor are more, which increases the amount of dissolved oxygen in the reactor.

The invention relates to the field of sewage treatment, in particular to a sewage treatment membrane bioreactor backwashing aeration device which comprises an air supply cavity, an upper cover plate is arranged at the top of the air supply cavity, two air inlet pipes are arranged on the rear side of the air supply cavity, electric control valves are arranged on the air inlet pipes, and a transverse guide rod is arranged in the air supply cavity. A reciprocating diaphragm plate is slidably connected to the guide rod, air outlets are formed in the left side and the right side of the upper cover plate, a pressure relief opening is formed in the top of the upper cover plate, and a switching mechanism and a triggering mechanism are arranged in the air supply cavity. Through the unique design of combination of pneumatic driving and electromechanical triggering, high-efficiency pulse aeration under low energy consumption is realized. The generated strong intermittent airflow can form better shearing force, effectively peel off pollutants on the membrane surface and obviously delay membrane flux attenuation, and the built-in oscillation mechanism further strengthens bubble diffusion and fluid disturbance and improves cleaning uniformity and oxygen mass transfer efficiency, so that the long-term high-flux stable operation of the system is maintained with lower energy consumption, and the operation cost is saved.