Unpowered biological rotating cage, sewage treatment system and sewage treatment method

Abstract

The invention discloses an unpowered biological rotating cage, a sewage treatment system and a sewage treatment method.The biological rotating cage comprises a supporting base and a vertically-arranged rotating disc, the rotating disc is rotatably arranged on the supporting base, and the biological rotating cage further comprises an annular biological reaction bed; the biological reaction bed is composed of an inner ring shell, an outer ring shell and annular sealing plates, the inner ring shell and the outer ring shell are concentric, the annular sealing plates are used for sealing the two sides of the inner ring shell and the outer ring shell, a plurality of partition plates are arranged in an annular cavity, and all the partition plates are evenly distributed along the circumference of the biological reaction bed to divide the annular cavity into a plurality of reaction cavities; each reaction cavity is filled with a first biological filler, a water collecting plate is obliquely arranged on the outer ring shell corresponding to each reaction cavity, the inclination directions of all the water collecting plates are the same when the water collecting plates rotate to the same position, and a plurality of water passing holes are formed in the four side walls of the reaction cavity corresponding to the inclination direction of each water collecting plate. The device has no energy consumption, is convenient to maintain, and is beneficial to improving the aeration efficiency and prolonging the hydraulic retention time, thereby being beneficial to improving the sewage treatment efficiency.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an unpowered biological rotating cage, a sewage treatment system and a sewage treatment method. Background technique [0002] With the urbanization of rural areas and the improvement of farmers' living standards, the problem of rural domestic sewage treatment has become increasingly prominent. [0003] In recent years, how to combine the terrain conditions of mountainous villages and towns to develop treatment devices suitable for local domestic sewage has received great attention from researchers. However, the processing devices that have been developed still have disadvantages such as high energy consumption, high maintenance intensity, and complex device structures. In view of the above technical problems, it is of great engineering significance for the researchers to develop a potential energy-driven sewage treatment device based on the elevation differe...

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Problems solved by technology

However, the processing devices that have been developed still have disadvantages such as high energy consumption, high maintenance intensity, and complex device structures.

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