323 results about "Oxygen utilization rate" patented technology

The present invention relates generally to systems and methods for improved electrochemical measurement of analytes. The preferred embodiments employ electrode systems including an analyte-measuring electrode for measuring the analyte or the product of an enzyme reaction with the analyte and an auxiliary electrode configured to generate oxygen and / or reduce electrochemical interferants. Oxygen generation by the auxiliary electrode advantageously improves oxygen availability to the enzyme and / or counter electrode; thereby enabling the electrochemical sensors of the preferred embodiments to function even during ischemic conditions. Interferant modification by the auxiliary electrode advantageously renders them substantially non-reactive at the analyte-measuring electrode, thereby reducing or eliminating inaccuracies in the analyte signal due to electrochemical interferants.

The present invention relates generally to systems and methods for improved electrochemical measurement of analytes. The preferred embodiments employ electrode systems including an analyte-measuring electrode for measuring the analyte or the product of an enzyme reaction with the analyte and an auxiliary electrode configured to generate oxygen and / or reduce electrochemical interferants. Oxygen generation by the auxiliary electrode advantageously improves oxygen availability to the enzyme and / or counter electrode; thereby enabling the electrochemical sensors of the preferred embodiments to function even during ischemic conditions. Interferant modification by the auxiliary electrode advantageously renders them substantially non-reactive at the analyte-measuring electrode, thereby reducing or eliminating inaccuracies in the analyte signal due to electrochemical interferants.

The present invention relates to a preparation method of biological affinity hydrophilic active magnetic seed filling material for treating water. It is characterized by that said method includes the following steps: mixing biological affinity substance, hydrophilic substance, magnetic powder and active carbon or magnetic powder and calcium carbonate in the high-molecular base material, and adding dispersion lubricating agent, uniformly stirring them, placing them into injection moulding machine, utilizing filling mould to make extrusion moulding and magnetizing, so as to obtain the invented filling material. It has biological affinity and hydrophilicity, at the same time can induce microbial activity and enzyme activity, and can raise oxygen utilization rate in water and water treatment efficiency.

The invention relates to a method for improving oxygen utilization rate of a supercritical water oxidation system. The method comprises the following steps of: injecting excessive oxygen and preheated organic waste liquid from the upper part of an evaporation wall reactor, mixing the oxygen and the organic waste liquid, performing supercritical water oxidation reaction on the mixture, and injecting evaporation water from the lateral surface of the evaporation wall reactor so as to form a supercritical temperature reaction area on the upper part and a sub-critical temperature salt dissolution area on the lower part in the reactor. When the reacted rest oxygen downwards flows to the sub-critical temperature salt dissolution area from the supercritical temperature reaction area, a part of oxygen is separated out and circulated to the supercritical temperature area on the upper part of the reactor to form internal circulation utilization of the oxygen; and the reacted fluid enters a high-pressure gas-liquid separator through condensation and pressure reduction, is dissolved into sub-critical water and carries the oxygen flowing out of the reactor, is separated by the high-pressure gas-liquid separator and then is re-injected to the reactor to form external circulation utilization. The method remarkably reduces the excessive oxygen amount coefficient by improving the utilization rate of the oxygen, and improves the running economy of the supercritical water oxidation system.

The present invention discloses a high-yield gamma-polyglutamic acid production gene engineering bacterial and a fermentation production method thereof. The gene engineering bacterial is named Bacillus subtilis FRD518, wherein the preservation number is CGMCC NO.6772, and the Vitreoscilla hemoglobin gene (vgb) is recombined and integrated on the chromosome of the gene engineering bacterial, such that the Vitreoscilla hemoglobin VHb can be successfully and highly expressed so as to significantly improve the oxygen utilization rate of the recombinant Bacillus subtilis under a low dissolved oxygen condition. According to the present invention, during a fermentation process, a carbon source, sodium glutamate, a yeast extract and other components are added in a flow manner, such that the gene engineering bacterial can efficiently produce the gamma-polyglutamic acid in a high yield manner, wherein the yield achieves more than 65 g / L, and is increased by 147% compared with the yield of the single batch culture of the original wild strain; and with the gene engineering bacterial, the problems of low yield, more by-products, long period, high energy consumption and the like of fermentation of the gamma-polyglutamic acid gene engineering bacterial under high viscosity and dissolved oxygen limiting conditions are solved, and the gamma-polyglutamic acid gene engineering bacterial can be applied for large-scale industrial production of gamma-polyglutamate acid.

The invention discloses an integrated bubbleless aeration membrane bioreactor. A hollow-fiber curtain type membrane (7) is vertically placed in a biochemical reactor (6), the upper and the lower ends of the hollow-fiber curtain type membrane (7) are respectively fixed in the sidewalls of one-way PVC (polyvinyl chloride) tubes by resin, the PVC tube on the lower end of the hollow-fiber curtain type membrane (7) is connected with an intake tube, the PVC tube on the upper end of the hollow-fiber curtain type membrane (7) is connected with an exhaust tube, the intake tube is connected with an air compressor (3) through an air rotameter (5), and the exhaust tube leads into the air via a gas fine-regulating valve (16). Because the integrated bubbleless aeration membrane bioreactor adopts the hollow-fiber curtain type membrane structure, the oxygen utilization rate approximates 100 percent, the air is inputted from the air compressor via the lower end of the hollow-fiber curtain type membrane, and flows in the hollow-fiber membrane tube cavities, the oxygen in the tube cavities is pushed by the difference between the oxygen partial pressures of both sides of the membrane to directly disperse into the external biomembrane via the membrane wall or micropores on the membrane wall, consequently, the oxygen transfer efficiency is greatly increased, the requirement of the microbiological oxidative degradation of organic pollutants on oxygen consumption is met, and moreover, the gas fine-regulating valve after the exhaust tube can be utilized to effectively and stably control the pressure and flow velocity of gas, so that the aeration quantity can be conveniently and accurately controlled.

The invention relates to a composition capable of relieving sports fatigue or improving sports ability and a solid sports beverage comprising the same. The composition comprises guarana extract, ginseng extract, beetroot extract, arginine, carbohydrate compound, vitamin and mineral. According to the composition and the beverage thereof, the sports fatigue can be relieved or the sports ability can be improved, the immunity of the human body is improved, and the stress capability and adaptability of the human body are enhanced. The composition and the beverage further have effects of increasing muscle blood flow, enhancing oxygen utilization rate, reducing sports energy consumption, prolonging sports time and thus improving sports ability.

The invention relates to a device for detecting dynamic specific oxygen utilization rate (SOUR) of an activated sludge system, belongs to the theory and technique of strengthening biological denitrification treatment with an activated sludge process, and designs a set of on-line detection device for simultaneously feeding back the activated sludge specific oxygen utilization rate of SBR process by aiming at the problems of off-line measurement, hysteresis quality and unavailable on-line detection and feedback and the like existing in the traditional method for measuring the oxygen utilization rate. The system is most characterized in that a sealed recorder jar is put on a magnetic stirring apparatus and a sludge circulating loop is formed through a reflux pump and a reactor; sensors are dissolved oxygen sensors and two sensors are respectively put in the sealed recorder jar and an SBR reactor so as to be capable of realizing the on-line detection of SOUR and the simultaneous feedback. The device is concise in design, stable in operation and good in reproduction quality of measured data, and can accurately monitor the reactive states of the system at different time by intuitively representing the SOUR curve.

The invention discloses an anti-hypoxia and anti-fatigue energy composition which comprises puffing black rice flour, oatmeal, coconut oil, corn syrup, isolated soy protein powder, maltodextrin, carnitine, a vine tea and flavone extract, a grapeseed extract, a quercetin extract, a silverweed cinquefoil root extract, a rhodiola extract, octacosane alkanol, branched chain amino acid, taurine, low-fat coconut powder and concentrated vanilla, wherein the multiple components are cooperated. The composition can be used for improving the aerobic metabolism of an organism, improving the oxygen utilization rate of cells, enhancing the plateau adaptiveness and improving the working capacity under a plateau low-oxygen condition; furthermore, the composition can quickly supplement sugar, fat, proteins, electrolyte and other nutrients, which are needed by the organism, and promote absorption of nutrition and can also quickly complement the carbohydrates and the nutrients, which are consumed and lost during motion, particularly in high-intensity sports training and fitness, of a human body, so that fatigues of central nervous system and bones can be relieved, and toxic and side effects are avoided.

The present invention provides a system and method for supplying, generating, conserving, and managing oxygen that is ideally suited for use on-board an aircraft for supply of breathable oxygen to passengers and flight crew. The system includes several components that together optimize oxygen utilization while reducing costs from maintenance and added weight of traditional pressurized gaseous cylinders. Components of the system include a pressurized cylinder of oxygen enriched gas or a chemical oxygen generator for rapid use in emergency situations, an on-board oxygen generator (OBOG) of the ceramic oxygen generator (COG) type incorporating solid electrolyte oxygen separation (SEOS) technology, a controller, a pulsed oxygen supplier, a crew / passenger breathing mask, and one or more sensors including sensors that detect inhale / exhale phases and communicate with the controller so that flow of oxygen may be regulated for conservation and to adapt to physiological needs.

The invention discloses an anti-fatigue energy composition which is prepared by the following raw materials in parts by weight: expanded black rice flour, oatmeal, coconut oil, corn syrup, soybean protein isolate powder, maltodextrin, carnitine, vine tea flavone extract, grape seed extract, quercetin extract, octacosanol, caffeine, branched chain amino acid, taurine, low fat cocoa and concentrated vanilla; the anti-fatigue energy composition is capable of rapidly supplementing sugar, fat, protein, electrolyte and other nutrients which are needed by the organism and promoting the nutrients to be absorbed, can be used for rapidly supplementing the consumed carbohydrate and the lost nutrients of human body caused by sweating excessively under the condition of exercises, especially medium and high intensity exercises and exercise training, and is beneficial for relieving central and peripheral fatigue; after the anti-fatigue energy composition is adopted, the antioxidant capacity and the aerobic metabolism level of the organism are improved, the oxygen utilization rate of cells can be improved, the moment and fatigue resistance of the organism can be better rapidly improved, and the sport injury is avoided.

The invention discloses a complex iron desulfurizing agent for wet-oxidation hydrogen sulfide removal. The complex iron desulfurizing agent contains the following components: water-soluble ferrite, an inorganic base, a water-soluble cobalt salt, an organic complexing agent and water, wherein the weight percent of the iron ion is 0.5-6wt%; a molar ratio of the metal ions in the inorganic base to the iron ion is 0.8-1.2; a molar ratio of the cobalt ion to the iron ion is 0.01-0.1; a molar ratio of the organic complexing agent to the sum of mole numbers of the cobalt ion and the iron ion is 1.2-3.0; the components of the complex iron desulfurizing agent additionally include piperazine and polyethylene glycol; the weight percent of the piperazine and the mixture is 1-5wt%; and the weight percent of the polyethylene glycol and the mixture is 0.1-2wt%. The complex iron desulfurizing agent for wet-oxidation hydrogen sulfide removal, disclosed by the invention, achieves the effects of enhancing the oxygen utilization rate in the regeneration process, reducing the air amount, improving the regeneration rate and reducing the fan energy consumption in the regeneration process and is low in cost.

The invention discloses an excess sludge reduction bioreactor with variable aeration and a worm attachment oblique plate, which relates to a bioreactor for excess sludge reduction. The bioreactor solves the problems that that the conventional excess sludge reduction device has low oxygen utilization rate, poor aeration adjustment, easy worm drop, low growth density of worm colony, difficult discharge of inert substances and the like. An automatic gas flow adjustor which is well arranged can automatically adjust the air flow entering a plurality of variable micropore aeration pipes according to the dissolved oxygen concentration of sludge mixed solution in a container, thereby realizing variable aeration for the sludge mixed solution in the container; the dissolved oxygen concentration of the sludge mixed solution can be kept at the maximum dissolved oxygen concentration of the worm sludge reduction through the variable aeration; and a plurality of variable aperture vent holes are uniformly distributed on the variable micropore aeration pipes, and the variable range of the diameters of the vent holes is 0.2 to 0.8 millimeter. The excess sludge reduction bioreactor integrates the worm attachment oblique plate and the variable aeration so as to greatly improve the sludge reduction effect, and the sludge reduction reaches over 90 percent.

The invention belongs to the water processing technology field, concretely provides a device and a technology for processing degradation-resistant waste water through a hypergravity multistage sacrificial anode electro-Fenton method, and solves the problem of mass transfer limitation in processing degradation-resistant waste water through a sacrificial anode electro-Fenton method. The device comprises a plurality of corrugated cylindrical anodes and anode connection disks and a plurality of corrugated cylindrical cathodes and cathode connection disks. The corrugated cylindrical cathodes and the cathode connection disks are stationary relative to a shell. The centers of the anode connection disks are connected with a rotating shaft. In the technology, the rotary corrugated cylindrical anodes and anode connection disks, the stationary corrugated cylindrical cathodes and cathode connection disks and a H2O2 solution form a hypergravity multistage sacrificial anode electro-Fenton reaction system. The device and the technology can reinforce the mass transfer process of the electro-Fenton reaction. The electrode area utilization rate, the oxygen utilization rate, the H2O2 production rate and the processing efficiency are all raised. The device has advantages of small size, low load and low energy consumption, and is suitable for continuous operation and scale processing.

The invention relates to a limestone slagging steelmaking lance position control method for basic oxygen furnaces, which belongs to the technical field of steelmaking. In the technical scheme, after limestone is directly added to replace conventional lime during slagging in the process of converter steelmaking, under the condition of keeping front pressure, the oxygen lance position is lowered to the decarburization-stage lance position in the lime slagging converting method at the early stage of converting in order to blow oxygen, and the lance position is raised at the middle and late stages of converting; when converting is almost ended, the lance position is lowered to the lowest position; and compared with the lime slagging converting method, the original high lance position is changed into the low lance position. The method has the advantages that not only the slag overflow of the mouth of a converter be inhibited, but also the proportion of carbon-oxygen reaction in molten iron is increased as much as possible from the beginning of oxygen blowing, thereby being equivalent to the advancement of the decarburization stage, and the effects of accelerating internal temperature rise, increasing the oxygen utilization rate, increasing the ratio of generated CO and the like can be achieved.

The invention relates to a method for detecting a dynamic specific oxygen utilization rate of an activated sludge system, belonging to a theory and a technology for enhancing a biological nitrogen removal process by activated sludge process. Aiming at the problems of a traditional method for measuring the oxygen utilization rate such as off-line measurement, hysteresis quality, no on-line measurement and on-line feedback, and the like, the invention provides a method for detecting the specific oxygen utilization rate of the activated sludge system with on-line measurement and on-line feedback. The invention has the following creative features that a programmable controller and a measuring system are used for on-line monitoring the specific oxygen utilization rate of the activated sludge and effectively representing a SBR technical biochemical reaction process; wherein, when the specific oxygen utilization rate is lower than a set value, the controller judges according to a feedback signal so as to transmit a control signal to a fan to stop aeration. The invention has the advantages of simple operation, sensitive response, etc. By detecting the index, the invention can timely feed back the operation information in the process of aerating, therefore establishing a theoretical base and a data support for realizing real-time control which uses the specific oxygen utilization rate as a parameter.

The invention relates to a composition with a muscle gain function, which comprises the following active ingredients of creatine, taurine, beetroot extract and beta-hydroxyl-beta-methyl butyrate. The invention further provides a sports drink comprising the composition, and the sports drink comprises the composition and a food additive. The sports drink has the functions that the muscle blood stream can be increased, the oxygen utilization rate can be enhanced, the sports energy consumption can be reduced, so that the motion function can be improved.

The present invention discloses an emulsifying-type aerobic fermentation tank. According to the aerobic fermentation tank in the prior art, increase of compressed air consumption and improvement of stirring motor power can not significantly increase specific yield, and can cause energy consumption increasing, product cost improving, equipment cost increasing and operating environment deterioration. The emulsifying-type aerobic fermentation tank of the present invention comprises a tank body and a gas-liquid mixing circulation apparatus, wherein the gas-liquid mixing circulation apparatus is located inside the tank body, and has at least two stages of gas-liquid mixers. The gas-liquid mixing circulation apparatus is arranged vertically. The tank body is provided with a tank body gas inlet pipe and a fermented liquid inlet pipe. The tank is characterized in that: a self-suction air ejection emulsifying supercharging device is arranged between the gas-liquid mixing circulation apparatus and the inner wall of the tank body. With the tank of the present invention, oxygen utilization rate, mass transfer rate, dissolved oxygen coefficient and specific yield are improved, energy is substantially saved, the equipment is simplified, the microbiological contamination rate is reduced, the equipment cost and the maintenance cost are reduced, and the service life of the fermentation tank isprolonged.

The invention discloses a device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption. The device comprises a blast blower, a vacuum pump, a first adsorption tower, a second adsorption tower, a third adsorption tower, a first equalizer tank, a second equalizer tank and an oxygen buffer tank, wherein an inlet of the first adsorption tower is connected with the inlets of the second adsorption tower and the third adsorption tower and is connected to the blast blower and the vacuum pump; an outlet of the first adsorption tower is connected to the outlets of the second adsorption tower and the third adsorption tower and is connected to the oxygen buffer tank; and the first adsorption tower, the second adsorption tower and the third adsorption tower are connected with the first equalizer tank and the second equalizer tank through pipes. By adopting the device and the method, the output and the yield of the oxygen can be improved, and the problems that an existing VPSA oxygen production process is low in oxygen utilization rate, low in adsorbent utilization rate and high in equipment cost are solved.

The invention relates to a device for preparing high-concentration ozone and recycling residual oxygen. According to the invention, oxygen is adopted as a raw material, and ozone is prepared through corona discharge. The device comprises an oxygen buffering tank (1), an ozone generator (2), a mixed gas buffering tank (3), a pressure swing adsorption tower A (4), a pressure swing adsorption tower B (5), and an ozone storage tank (14). The oxygen buffering tank (1) is connected with the ozone generator (2). The ozone generator (2) is connected with the mixed gas buffering tank (3). The mixed gas buffering tank (3) is connected with the pressure swing adsorption towers. Oxygen outlets of the pressure swing adsorption tower A (4) and the pressure swing adsorption tower B (5) are connected with the oxygen buffering tank (1). Ozone outlets of the pressure swing adsorption tower A (4) and the pressure swing adsorption tower B (5) are connected with the ozone storage tank (14). The device provided by the invention has the advantages that: ozone and oxygen are absorbed and separated by the pressure swing adsorption towers; the concentration of obtained ozone is high; oxygen utilization rate is high; and device structure is simple.

The invention discloses a starting and running method for a shortcut nitration technology based on an MBBR (Moving Bed Biofilm Reactor) and belongs to the field of sewage treatment. The problems of difficult starting, unstable nitrite accumulation effect and low processing load in the original biochemical technology are solved. The method comprises the following steps: starting inoculation, starting the shortcut nitration of the MBBR and continuously running the shortcut nitration of the MBBR. Finally, the load of an ammonia nitrogen membrane side reaches more than 1.5 gN / m<2> / d, the nitrite accumulation rate stability is higher than or equal to 90%, and the requirement of follow-up denitrification or anaerobic ammonium oxidation on nitrogen is met. The method has the advantages of stable shortcut nitration effect, high ammonia nitrogen oxidation, occupied land saving, simple operation and reliable running. Compared with a traditional technology, the selection and the elimination of sludge can be realized, long-term running instability is prevented, the oxygen utilization rate is high, and aeration and fluidization energy consumption is low.

The invention discloses a nano aeration biofilm reactor. The main structure of the nano aeration biofilm reactor is that an inlet water regulating reservoir is connected with a water inlet of the reactor by a water pump, the reactor is filled with fillers, a biofilm is grown on surfaces of carbon fiber fillers, the upper part of the reactor is connected with a water inlet pipe of a nano-aerator, the lower part of the reactor is connected with an aeration pipe of the nano-aerator, and a water outlet of the reactor is connected with an outlet sump by a solenoid valve. According to the nano aeration device for aeration disclosed by the invention, the oxygen transfer capability and the dissolved oxygen concentration are increased, the present situation of low oxygen utilization ratio is improved, the waste of energy resources is simultaneously reduced, and the electricity consumption can be saved by 1 / 5. The nano carbon fiber fillers are used as the fillers, so that the defects of low treatment efficiency, easy blockage and poor shock resistance of the traditional biofilm reactor are improved, and the mode for treating domestic sewage of the biofilm reactor is innovated, the removal efficiency of ammonia-nitrogen and COD (chemical oxygen demand) is up to 95%-98%, the effluent quality is good, and the occupied area is small. The nano aeration biofilm reactor disclosed by the invention is suitable for treating the domestic sewage.

The invention provided a pressurized cabin system for oxygen circulation. The pressurized cabin system includes a pressurized cabin body, an out-cabin oxygen supply device, an in-cabin oxygen supply device and a discharged-oxygen recycling device; the out-cabin oxygen supply device is used for transporting oxygen to the in-cabin oxygen supply device inside the pressurized cabin body, and after theoxygen discharged by the in-cabin oxygen supply device is recycled by the discharged-oxygen recycling device, the oxygen is supplied to the in-cabin oxygen supply device. The pressurized cabin systemhas the advantages that the used oxygen is recycled and enters the oxygen supply device again when needed, and the oxygen utilization rate can be greatly and effectively increased regarding in-cabinoxygen supply; the oxygen supply amount is reduced; consumed oxygen is effectively reduced.

The invention discloses an intelligent oxygen-supplying and remote monitoring respirator. The intelligent oxygen-supplying and remote monitoring respirator comprises an air purification unit, an oxygen source, a flow regulation apparatus, oxygen concentration monitoring equipment, a respiration cover, a controller, human body sign detection equipment, a remote data transmitting module, a remote data receiving module, an alarm and an oxygen amount monitoring apparatus, wherein the air outlets of the air purification unit and the oxygen source are connected with the air inlets of the flow regulation apparatus separately; the air outlet of the flow regulation apparatus is connected with the respiration cover; the oxygen concentration monitoring equipment is arranged on an air path between the flow regulation apparatus and the respiration cover; the oxygen source is connected with the oxygen amount monitoring apparatus; the remote data transmitting module is corresponding to the remote data receiving module; and the remote data receiving module is connected with remote nursing monitoring equipment in a hospital. By adoption of the intelligent oxygen-supplying and remote monitoring respirator, oxygen utilization rate is greatly improved, oxygen supply becomes more reasonable, and recovery of a patient can be promoted; in addition, the respirator has a remote nursing function, so that burden of the patient can be reduced while life safety of the patient also can be ensured; and the respirator is suitable for patients who are treated at home.

The invention discloses a PTFE hollow fiber film used for bubbleless aeration oxygenation, and a preparation method thereof. According to the PTFE hollow fiber film used for bubbleless aeration oxygenation, a hollow tubular structure is adopted, micropores with an average pore diameter ranging from 1000 to 8000nm are uniformly distributed on the surface layer and the interior; and the porosity of the micropores ranges from 70 to 90%. The PTFE hollow fiber film is low in pore diameter, high in porosity and strength, and excellent in physical and chemical properties, is especially suitable for bubbleless aeration oxygenation; aeration resistance is low; operation is stable and reliable; adaptability is high; the PTFE hollow fiber film is suitable for aeration of a plurality of waste water; oxygen utilization rate is high; generated micron order bubbles are small and uniform; service life is long; no film pollution is caused; film washing is not needed in long term of application; the preparation method is simple; no environment pollution is caused; operation is convenient; and the preparation method is suitable for industrialized production.

The invention relates to an ultramicropore aerator used for high organic load sewage treatment, which comprises an aeration disc sheet (1), an aeration disc sheet support seat (3), an aerator pipe (4) and an aerator base (6), wherein the aeration disc sheet (1) is arranged on the aeration disc sheet support seat (3) via the aerator pipe (4); the aerator pipe (4) is communicated with an air pipeline (7) via the aerator base (6); and the aeration disc sheet (1) has the aperture of 75-100mu m. In the ultramicropore aerator used for high organic load sewage treatment, the aeration aperture of the aeration disc sheet (1) is 75-100mu m, and the diameter of the generated bubble is 0.5-1mm, thus improving the oxygen utilization rate; and a tapered threaded coupling is adopted between the aerator base and the aerator, thus enhancing the tightness between the aerator base and the aerator, preventing air leakage, and facilitating the connection, disassembly, maintenance and replacement of the aerator.

The invention discloses a two-stage membrane aerated bioreactor for deep sewage treatment. The two-stage membrane aerated bioreactor mabr comprises a buffer tank, a first-stage mabr device and a second-stage mabr device, wherein urban living sewage after physiochemical pretreatment is firstly fed into the buffer tank, is subjected to primary biochemical treatment by using the first-stage mabr device, and finally flows through the second-stage mabr device for deep treatment; the biological membrane of the first-stage mabr device is formed by using a natural membrane formation method and is used for treating high-load pollutants; the biological membrane of the second-stage mabr device is formed by using a manual membrane formation method and is used for treating low-load pollutants. Due to the two-stage mabr system, urban living sewage can be deeply treated, the problem that low-concentration organic matters, ammonia nitrogen, total nitrogen and the like cannot be further removed by using a single-stage mabr system is solved, and the two-stage mabr system is simple and convenient to operate, stable to operate, high in oxygen utilization rate, high in bioactivity, low in sludge yield and low in energy consumption.

The present invention teaches a hybrid aeration membrane bioreactor, comprising a bio-reaction tank; a plurality of membrane modules disposed within the bio-reaction tank; a macropore aeration apparatus comprising a first aeration pipe; a plurality of macropore heads having each a plurality of macropores, the macropore heads being disposed on the first aeration pipe; and a first gas pump; and a micropore aeration apparatus comprising a second aeration pipe; a plurality of micropore heads having each a plurality of micropores, the micropore heads being disposed on the second aeration pipe; and a second gas pump; wherein the first aeration pipe is connected to the first gas pump; the second aeration pipe is connected to the second gas pump; the macropore head is disposed below the membrane module; the micropore head is disposed near the bottom of the bio-reaction tank; and the micropores are smaller in diameter than the macropores. In accordance with the present invention, two aeration types, the macropore aeration and the micropore aeration, are combined, at the same aeration rate, the oxygen utilization rate of the membrane bioreactor is increased and thus the energy consumption for treating waste water is decreased. Therefore, the reactor is suitable for treating highly loaded organic waste water.

The invention discloses an aerating device of a water body. The aerating device comprises an aerating container and a breeding container, wherein the aerating container and the breeding container are respectively communicated with a water inlet pipe through a water return pipe; oxygen is filled in the aerating container; a pipe opening of the water inlet pipe entering the aerating container has a spraying structure and / or a fog jetting structure; the water return pipe has a connector structure and forms liquid seal corresponding to the oxygen in the aerating container by collecting the water body; the water body in the breeding container is pumped into the aerating container through a pump and then returned to the breeding container through the water return pipe after being sprayed and aerated. According to the invention, on one hand, an aeration filtering device of the water body capable of improving dissolved oxygen, filtering quality of water and utilization rate of resource is provided. The aeration filtering device has the above structure, wherein multiple layers of filter materials are arranged inside the aerating container from down to up. According to the scheme, the structure is simple and the cost is low, the oxygen dissolving effect, the filter effect and the sterilizing and disinfecting effects are excellent, the oxygen utilization rate is high, and the water resource is remarkably saved.

The invention discloses rotational-flow static-state mixed aeration apparatus used for sewage treatment aeration. The apparatus comprises a cylindrical outer shell, an air inlet pipe joint, a one-wayvalve, a square air inlet flow guide pipe, an air inlet volute fluid director, a rotating air deflector, a spiral groove-typed bubble cutting device and a top fixing ring, after compressed air tangentially enters the air inlet volute fluid director through the square air inlet flow guide pipe, a rotational flow is produced, the rotation of the rotational flow is strengthened through the rotating air deflector in the rotational-flow rising process, the strengthened rotational flow collides with the spiral groove-typed bubble cutting device to form fine bubbles and generate vortexes, aeration oxygen supply and stirring are performed on sewage in a tank, so that the fine bubbles and the sewage are fully contacted, the oxygen utilization rate is effectively improved, and the apparatus has theadvantages of high oxygen dissolving efficiency, small resistance loss, strong stirring force, no clogging, intermittent operation, long service life and the like.