Energy-saving self-circulation A3O-MBBR sewage treatment device and method thereof

Abstract

The invention discloses an energy-saving self-circulation A3O-MBBR sewage treatment device, and relates to the technical field of sewage treatment. Comprising an inner circular plate and an outer circular plate, the inner circular plate and the outer circular plate are concentric annular plates, the outer side of the inner circular plate is sleeved with the outer circular plate to form a sewage treatment device, an annular gap cavity is formed between the inner circular plate and the outer circular plate, and an anaerobic reaction area, a sludge concentration area, a biological filter bed area and a clear water area are arranged in the annular gap cavity at intervals. An anoxic and aerobic biochemical main reaction zone and a settling zone are arranged on the inner side of the inner circular plate, an anoxic reaction zone, an aerobic reaction zone and a settling zone are sequentially arranged from bottom to top, and a comprehensive equipment room is independently arranged on the outer side of the outer circular plate. The problems that in the prior art, traditional sewage treatment processes such as A2O, SBR, oxidation ditch and MBR combined processes are large in occupied area of equipment and facilities, high in operation energy consumption, complex in management and the like are solved. The common problems include the internal reflux problem in the A2O process, the high aeration energy consumption problem in the MBR membrane process, the plug flow aeration energy consumption problem in the oxidation ditch process and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, and more specifically, the invention relates to an energy-saving self-circulating A3O-MBBR sewage treatment device and a method thereof. Background technique [0002] In recent years, the sewage treatment process and sewage treatment equipment manufacturing, along with the comprehensive management requirements of the water ecological environment, have become increasingly perfect, and the discharge standards of sewage treatment water quality have been gradually improved. [0003] Traditional sewage treatment processes such as A2O, SBR, oxidation ditch, MBR combined process, etc., all have problems such as large equipment and facilities, high operating energy consumption, and complex management. Such as the internal reflow problem in the A2O process, the high energy consumption of aeration in the MBR film process, and the energy consumption of the push-flow aeration in the oxidation ditch ...

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Problems solved by technology

[0004] The present invention aims to solve the problems of large floor area of ​​equipment and facilities, high energy consumption in operation and complex management in traditional sewage treatment processes in the prior art, such as A2O, SBR, oxidation ditch, MBR combination process, etc.

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