Sewage purification treatment type artificial wetland system

Abstract

The invention discloses a swage purification treatment type artificial wetland system. The swage purification treatment type artificial wetland system comprises three sewage channels, wherein each sewage channel is sequentially provided with a subsurface flow wetland unit I, a stabilization pond unit and a subsurface flow wetland unit II along the flowing direction of sewage; the subsurface flow wetland unit I, the stabilization pond unit and the subsurface flow wetland unit II of each sewage channel are communicated in sequence; the swage purification treatment type artificial wetland systemis further provided with a surface flow wetland unit; the subsurface flow wetland units II of all the sewage channels are communicated with the surface flow wetland unit; one or more of cannas, chrysopogon zizanioides, reeds, cyperus papyrus and thalia dealbata are planted in the subsurface flow wetland unit I in each sewage channel; water lilies are planted in each stabilization pond unit; one ormore of the cannas, the chrysopogon zizanioides, the reeds, the cyperus papyrus and the thalia dealbata are planted in each subsurface flow wetland unit II; cane shoots and typha orientalis are planted in the surface flow wetland unit. According to the swage purification treatment type artificial wetland system, the sewage is effectively purified through a design of configuring and constructing the artificial wetland system and selecting plants.

Description

technical field [0001] The invention relates to the technical field of sewage purification, in particular to a sewage purification treatment artificial wetland system. Background technique [0002] The quality of water environment is an important factor affecting the social and economic development of our country. Algae blooms caused by nutrient pollutants such as nitrogen and phosphorus are the main problems affecting the quality of water environment around cities. The 2016 National Environmental Bulletin released by the Ministry of Environmental Protection shows that among the 108 important lakes (reservoirs) in my country that monitor the nutritional status, 98 are in the state of mesotrophic or eutrophic, and important lakes such as Taihu Lake, Dianchi Lake, and Chaohu Lake have frequent water blooms. The water environment is worrying, which has greatly affected the production and life of local enterprises and residents. [0003] The effluent of sewage treatment plants i...

AI Technical Summary

Problems solved by technology

[0005] In general, controlling the risk of algal blooms in receiving water bodies effluent from sewage plants and strengthening the stability and self-purification capacity of water ecosystems are important issues to ensure the environmental quality and ecological security of water bodies around cities. The existing constructed wetland system is structurally composed There are certain defects in the selection of plants and plants, and there is still a lot of room for improvement in the effect of sewage purification.

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