A biological aerated filter

Abstract

The present application relates to sewage treatment technical field, especially to a kind of biological aerated filter, comprising: pool body, aeration body and filter plate, the filter plate is located in the lower part of pool body, pool body is divided into two parts, the lower part of pool body is pipe gallery, the upper part of pool body is sequentially provided with supporting layer, filter material layer and effluent zone from bottom to top, the aeration body is set in the upper part of filter plate, the upper part of aeration body passes through supporting layer and extends into filter material layer, sewage inlet pipe and backwash inlet pipe are respectively arranged on the side wall of one side of pipe gallery, the effluent outlet is arranged on the side wall of one side of pool body in effluent zone, the present application provides a kind of biological aerated filter, increases the running direction and running path of oxygen, makes filter material and oxygen in multidirectional contact sufficiently, improves the transfer efficiency of oxygen and the utilization rate of filter material, improves the oxidation degradation efficiency to sewage, effectively improves sewage treatment efficiency.

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