Aeration device for sewage treatment

Abstract

The invention relates to an aeration device for sewage treatment, which comprises an aeration tank, an aeration machine is arranged outside the aeration tank, the aeration machine is connected with anaeration pipeline extending to the inside of the aeration tank, the aeration pipeline comprises a plurality of air-cut aeration ends and a plurality of edge-side aeration ends, a plurality of air-cutaeration ends can be evenly arranged in the bottom end of the aeration tank, and each of the air-cut aeration ends is in a sector structure; the edge-side aeration ends are located at a radial circumferential position of the inner side wall of the aeration tank, the edge-side aeration ends are connected with the inner wall of the aeration tank, and the edge-side aeration ends are inclined downwardly to the inner side wall of the aeration tank for extension; a port position of the air-cut aeration end and the port position of the edge-side aeration end are respectively provided with electric nozzles, and the electric nozzle is flush with the inner wall of the aeration tank; airflow with fan-shaped diffusion distribution is evenly and fully distributed into the aeration tank, and all corners in the aeration tank can be effectively aerated without an aeration blind angle. The efficiency of sewage treatment is greatly increased, and the time required for sewage treatment is reduced.

Description

Technical field [0001] The invention belongs to sewage treatment technology in the technical field of chemical engineering, and particularly relates to an aeration device for sewage treatment. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse; sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering and other fields ; The chemical industry produces a large amount of sewage every year. A process in the sewage treatment process is aeration, so that the activated sludge in the sewage can obtain sufficient dissolved oxygen to decompose harmful substances in the sewage. The existing aeration device has a high production cost and aeration. It is difficult for the air sent by the air machine to fully mix with the activated sludge, so the sewage treatment effe...

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Problems solved by technology

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for drainage or reuse; sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering and other fields ; The chemical industry produces a large amount of sewage every year. One of the procedures in the sewage treatment process is aeration, so that the activated sludge in the sewage can obtain sufficient dissolved oxygen and then decompose harmful substances in the sewage. The existing aeration device is expensive to manufacture, and the aeration The air sent by the air machine is difficult to fully mix with the activated sludge, so the sewage treatment effect is also poor

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