10results about How to "Improve oxygen transfer efficiency" patented technology

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.

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 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 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.