Anaerobic and aerobic multistage-wetland sewage treatment device

Abstract

The invention discloses an anaerobic and aerobic multistage-wetland sewage treatment device and belongs to the technical field of water purification. The sewage treatment device consists of a grille well, an anaerobic contact tank, an aerobic wetland tank, an anaerobic wetland tank and an effluent well. Composition products of the sewage treatment device are of series connection and comprise the grille well, the anaerobic contact tank, the aerobic wetland tank, the anaerobic wetland tank and the effluent well sequentially from front to back. The grille well can be used for intercepting entrained thick and big foreign bodies from sewage, the anaerobic contact tank is used for lowering the concentration of organic matters in the sewage and decomposing macromolecular organic matters in the sewage into micromolecular organic matters, and plants of the aerobic wetland tank and the anaerobic wetland tank are used for absorbing water nutrients and degrading the organic matters in the sewage. Due to aerobic wetland treatment, nitration and denitration actions can be strengthened, and aquatic plants are used for decomposing and absorbing the organic matters in the sewage so as to construct a good ecological environment; long-term usage is achieved by one-time investment, the maintenance is easy, the sewage treatment effect is good, and the applicable range is extensive.

Description

technical field [0001] The invention belongs to the technical field of water quality purification, and relates to a sewage treatment device, in particular to an anaerobic and aerobic multi-stage wetland sewage treatment device. Background technique [0002] With the development of the rural economy, the living standards in rural areas continue to improve, and the process of urbanization continues to advance. Therefore, the requirements for the living environment are getting higher and higher. At the same time, the discharge of rural domestic sewage is also increasing. At present, my country's urban sewage treatment rate has reached a certain level, but domestic sewage treatment in rural areas is still almost blank. For a long time, due to the shortage of management funds and weak awareness of rural water environment protection, domestic sewage in rural areas has been discharged directly without treatment. Untreated or improperly treated domestic sewage has become one of the ...

AI Technical Summary

Problems solved by technology

The above-mentioned patented products rely too much on chemical methods for sewage treatment in the process of sewage treatment. The cost of this sewage treatment method is relatively high, and the use of chemical reagents is likely to cause other harm to the environment.

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