16results about How to "Improve oxygen transfer efficiency" patented technology

The utility model discloses a membrane aeration MABR high-efficiency oxygen transfer system, which comprises a biochemical pool, a plurality of groups of aeration membranes MABRs are fixedly arranged at the bottom of an inner cavity of the biochemical pool, air supply branch pipes are connected among the outer surfaces of the upper ends of the plurality of groups of aeration membranes MABRs, an air blower is arranged on one side of the biochemical pool, and an air outlet is arranged on the other side of the biochemical pool. An air supply main pipe is arranged between the air supply branch pipe and the air blower, the air supply main pipe is fixedly connected between the air blower and the air supply branch pipe, and the aeration membrane MABR is of a double-layer structure of modified hydrophobic hollow fiber membrane externally woven with nanofiber filler. According to the membrane aeration MABR high-efficiency oxygen transfer system disclosed by the utility model, the average pore diameter of the aeration membrane MABR is only 0.1 mu m, and the diameter of bubbles generated by aeration is very small, so that the oxygen transfer efficiency is greatly improved, the oxygen transfer efficiency is up to more than 50-60%, the gas-water ratio can be reduced to below 3: 1, and compared with the prior art, the energy consumption is only 30-40% of that of the traditional process, and a better use prospect is brought.

This invention belongs to the field of aerobic biochemical technology, specifically relating to a liquid-gas jet injector, including an air inlet pipe, a liquid inlet pipe, an air intake tank, a jet nozzle, a throat, a guide tube, and a mixer. A first channel is provided between the outlet of the nozzle and the first jet port of the air intake tank, allowing air to be drawn into the first jet port through the first channel. The throat is connected to the first jet port. A second channel is provided between the outlet of the throat and the guide tube to facilitate the intake of liquid flow to form a second gas-liquid mixture. The throat is used for the first gas-liquid mixing and transport, and the mixer is used for the mixing and transport of the second gas-liquid mixture. The gas-liquid mixture at the outlet of the mixer comes into contact with the liquid in the liquid pool, forming a third oxygen transfer. This solution achieves three-stage oxygen mass transfer between gas and liquid, overcoming the limitation of the optimal 1:1 mass transfer ratio of air to liquid in the throat; it ensures thorough mixing of gas and liquid, avoiding the drawbacks of localized high dissolved oxygen; and it improves the oxygen transfer efficiency between gas and liquid.

The utility model discloses an anti-clogging aeration device for a sewage regeneration treatment system, which relates to the field of sewage treatment, and comprises a placing frame, an aeration pipe is arranged in the placing frame, an aeration head is arranged outside the aeration pipe, a motor is arranged on one side of the placing frame, a screw rod is arranged at the output end of the motor, and the screw rod is arranged on the other side of the placing frame. A guide groove is formed in the inner wall of the containing frame, and a guide plate is slidably connected into the guide groove. The aeration device has the advantages that the movable block and the internal threaded hole are matched with the lead screw and the motor, so that the scraper can circularly move in the placement frame, sludge on the aeration head can be cleaned, the aeration device is prevented from being blocked, and meanwhile, the oxygen transmission efficiency and the sewage treatment efficiency can be improved; and a spring and a push block are matched with a mounting rod and a clamping hole in the mounting rod to assemble and disassemble the scraping plate, so that the scraping plate can be replaced after being used for a long time, and meanwhile, the replacement difficulty can also be reduced.

This utility model relates to the field of aerated biological tank technology and discloses an energy-saving microporous aerated biological tank system for photovoltaic wastewater treatment. The aeration component includes an air guide pipe connected to a support rod, an air supply pipe connected to the air guide pipe, and aeration pipes evenly distributed on the air guide pipe. Aerators are linearly arranged at the bottom of the aeration pipes. A swirl component is installed inside the aerator, and a spiral air guide component is installed outside the swirl component. Tangential holes are opened along the circumferential direction on the outer wall of the spiral air guide component, and each set of tangential holes is a conical channel inclined at 45°. Each set of conical channels has an elastic closed-cell diaphragm built in. The swirl component generates a swirling flow, which can first "shred" the 0.3MPa air, and then the gas is "fan-shaped" and scattered by the spiral air guide component. It can achieve higher oxygen transfer efficiency and lower operating costs with less electricity, fewer pipes, and a larger coverage area, resulting in good energy-saving effect.

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.

This utility model relates to the field of wastewater treatment technology, specifically a device for purifying wastewater from urban river outlets. It includes a main body, a water distributor, micro-nano aeration discs, a fixed biofilm carrier, and a PLC control cabinet. The main body is equipped with upper and lower limiting perforated plates to restrict the movement range of the porous, nest-like biofilm carrier, and micro-nano aeration enhances oxygen transfer efficiency. The device adopts a compact, bank-side design, integrating an influent pump, an aeration pump, and an automated control system to achieve uniform wastewater distribution, efficient aeration, and automatic sludge discharge. The fixed biofilm carrier has pre-fixed functional microbial communities on its surface, eliminating the need for inoculation with native microorganisms, shortening the biofilm formation cycle, and improving the removal efficiency of pollutants (COD, ammonia nitrogen, TP, TN). This device also has advantages such as small footprint, low operating costs, and strong resistance to shock loads, making it suitable for the efficient treatment of wastewater from urban river outlets.

The utility model belongs to sewage treatment aerator technical field especially relates to a top air inlet formula two -stage diffusion cyclone aerator, including cylinder and air inlet pipe, the lower end of cylinder is connected with the fairing, the bottom of fairing is open and it is equipped with a plurality of cyclone nozzles in it, the upper fixed connection of cylinder is provided with the diffuser, the diffuser and cylinder interval setting form the spray outlet that supplies the mixed fluid of cylinder inside to spray, the outer edge of diffuser is zigzag to cut the mixed fluid that sprays, air inlet pipe from top to bottom passes through diffuser and cylinder and links to all cyclone nozzles in turn. The aerator of the utility model not only can avoid the radial unbalanced force caused by side air inlet, prolongs structural fatigue life, and can cut the bubble fully as dense small bubble, improves oxygen transfer efficiency, can increase sludge diffusion area, prolongs oxygen residence time, reduces the installation quantity of aerator, reduces the power consumption of fan.

The invention discloses a multi-gas parameter detection device and method for sewage treatment, comprising a gas analyzer and an OTE operation module; the gas analyzer comprises a filter chamber, a heating chamber, a parameter detection chamber and a sampling pump respectively connected to a control system; the filter chamber comprises an air inlet, a sample gas inlet, a channel solenoid valve, a cavity and a filter screen; the filter chamber forms a vacuum through the sampling pump, opens the channel solenoid valve, sucks in the air or the sample gas escaping from the biochemical pool, and introduces the gas into the heating chamber through the filter screen; the heating chamber comprises a heating resistor and a one-way damping channel; the gas passes through the heating chamber and then enters the parameter detection chamber; the parameter detection chamber comprises an oxygen content detection sensor, a carbon dioxide content detection sensor, a temperature and humidity detection sensor, a gas pressure sensor and a flow sensor; the invention collects and analyzes the gas escaping from the biochemical pool, gives OTE parameters, and improves the aeration efficiency through the evaluation of OTE to achieve energy saving 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 application is suitable for the technical field of sewage treatment, and provides a sewage treatment device with a butterfly valve and the butterfly valve, wherein the sewage treatment device with the butterfly valve comprises a water pump, the water pump is connected with a Venturi tube through a water pipe A, an inner bottom surface at an inlet of a throat of the Venturi tube is obliquely provided with a flow guide plate, a spiral flow guide channel is arranged on an inner wall of the throat of the Venturi tube, an air inlet pipe is connected at the throat of the Venturi tube, the butterfly valve is arranged at the air inlet pipe, the air inlet pipe can be connected with an external biogas tank through a pipeline, and a fine sieve plate is arranged at a diffusion section of the Venturi tube. The application effectively improves the mixing uniformity of biogas and sewage, prevents the flow channel from being blocked due to the accumulation of sediments on the throat structure, optimizes the bubble distribution state in the aeration stage, and makes the system always in the best energy efficiency interval through real-time adjustment of the water pump power.

The ozone-photocatalysis-based high-concentration industrial wastewater treatment equipment comprises a main tank body, and the main tank body comprises a base, a tank body, an upper cover, a gas inlet, a gas outlet, a liquid inlet, a liquid outlet, an observation opening, a cleaning opening, a sewage collection area, a reaction area and a gas return area; the tank body is fixedly arranged on the base, the upper cover is fixedly arranged on the tank body, an air inlet and an air outlet are formed in the upper cover, a liquid inlet is formed in the bottom of the tank body, a liquid outlet, an observation opening and a cleaning opening are formed in the side face of the tank body, and the cleaning opening is close to the bottom of the tank body. The liquid outlet and the observation opening are close to the top of the tank body; the interior of the tank body is divided into a sewage collection area, a reaction area and a gas return area from bottom to top; the device can effectively improve the ozone utilization rate, reduce the ozone production energy consumption cost, reduce the tail gas recovery treatment cost, conveniently treat adhesive substances in the wastewater treatment equipment, conveniently replace the catalyst and improve the overall automation degree of the wastewater treatment equipment.

The application discloses a kind of low carbon constraints under industrial park wastewater resource utilization cascade utilization method, it is related to industrial park wastewater treatment and resource utilization technical field, including pretreatment diversion, carbon source gradient distribution type biochemical treatment, low-oxygen density exposure depth purification, waste heat cascade recovery and quality allocation, the biochemical treatment method of carbon source gradient distribution and water level self-adaptive multi-mode combination is used in the present application, high carbon wastewater in park is distributed to different areas of biochemical reaction according to functional demand, realize the cascade utilization of raw water carbon source, using the purification method of zoned low-oxygen density exposure, compared with conventional aeration process, reduce aeration air volume and fan power consumption, directly reduce the power carbon emission of treatment process, while the oxygen transfer efficiency of dense arrangement aeration mode is improved, avoid the energy waste caused by excessive aeration, using waste heat cascade recovery and quality allocation combination mode, replace part of fossil energy heating, reduce the carbon emission of park heating link.

The invention relates to the field of catalysts, and discloses a VOCs oxidation catalyst and a preparation method and application thereof.The catalyst comprises a regular carrier, the inner surface and / or the outer surface of the regular carrier are / is compounded with a catalyst coating, and the catalyst coating comprises Al2O3 containing rare earth elements and precious metal active ingredients; at least part of the noble metal active component exists in the form of nanoparticles, and at least part of the noble metal active component exists in a monatomic state. The catalyst can prevent agglomeration in the aging process, and the service life of the catalyst is prolonged.

The utility model discloses biological membrane rapid denitrification integrated equipment, which solves the problems of large occupied area and inconvenience in installation of biological membrane denitrification equipment in the prior art, and comprises a biological membrane rapid denitrification unit or at least two biological membrane rapid denitrification units which are connected in series, the biological membrane rapid denitrification unit comprises an integrated steel structure box body and at least two aerobic tanks which are arranged in the box body and are connected in series along the water flow direction; a filler is arranged in the aerobic tank, a microporous aeration pipe is laid at the bottom of the aerobic tank, and the microporous aeration pipe is connected with an aeration branch pipe; wherein the water inlet end of the box body on the water inlet side is connected with a water inlet pipe, the water outlet end of the box body on the water outlet side is provided with a water outlet groove and an equipment area, the water outlet groove is connected with the water outlet pipe, the equipment area is internally provided with aeration equipment, the aeration equipment is connected with an aeration main pipe, and the aeration main pipe is connected with an aeration branch pipe.

The application discloses a biological sludge recycling type sewage treatment reaction device, and relates to the technical field of sewage treatment. The device comprises a pool body, the inner part of the pool body is fixedly connected with a first partition plate, a second partition plate and a connecting plate respectively, the pool body and the first partition plate form an anaerobic zone, and the first partition plate, the second partition plate and the pool body jointly form an anoxic reaction zone. In the application, the sludge quality separation and reflux system is matched with the gradient sedimentation assembly through the spiral separator, the reinforced cyclone hydraulic field is formed in the anaerobic zone by means of the spiral flow channel with a narrowing inner diameter from top to bottom, the centrifugal force is used to make the inert sludge and heavy particles with a larger density migrate to the pool wall and sink to the sludge hopper to complete in-situ concentration, the preliminary sludge separation is realized, the separation load of the subsequent sedimentation unit is effectively reduced, the mixed contact of the sewage and the anaerobic sludge is strengthened by the cyclone state water flow, a stable anaerobic environment is created for the phosphorus accumulating organisms, and the phosphorus accumulating organisms are promoted to release phosphorus efficiently.