Aeration device and method for sewage treatment

Abstract

The invention discloses an aeration device and method for sewage treatment, relates to the technical field of sewage treatment, and aims to solve the technical problem of low sewage treatment efficiency caused by single gas discharge route of the aeration device for sewage treatment. Comprising a base, a horn pipe, an input pipe, a turbine, a plurality of air outlet assemblies, a collapsible mechanism A, a mounting frame, a plurality of coaming assemblies and a collapsible mechanism B, gas flow serves as power, external energy is not needed, the turbine rotates, gas in the circular cavity rotates to form a vortex with low pressure in the center and high pressure on the periphery, the gas outlet assemblies can expand and contract relative to the circular cavity, the gas outlet pressure of the gas outlet assemblies is gradually changed, and therefore the movement route of the gas in the sewage treatment pool is changed, and the microbial degradation efficiency is improved. And when the air inlet end of the air outlet assembly is closer to the middle of the circular cavity, the outlet of the air guide cavity is smaller to supplement airflow in the middle of the circular cavity and prevent the pressure of the airflow in the middle from being too small, so that the sewage treatment efficiency is improved.

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