In-situ biological-ecological recovery integrated system for urban river water body

Abstract

The invention relates to an in-situ biological-ecological recovery integrated system for an urban river water body. The in-situ biological-ecological recovery integrated system is capable of effectively preventing the problems of unqualified fluvial cross section water body and aquatic ecosystem damage and further improving the landscape effect. According to the technical scheme adopted by the invention, the method is as follows: close-to-nature riverside buffer zones are constructed on side banks of a river reach from upstream to downstream; the river reach, at which the close-to-nature riverside buffer zones are positioned, is internally and sequentially provided with a pretreatment unit, a first ecological floating bed unit, a first ecological filtration dam unit, an aquatic plant unit, a second ecological floating bed unit, a second ecological filtration dam unit, a biomembrane-enhanced purification unit including a plug-flow aeration unit, a habitat improvement unit and an aquatic organism functional group construction zone from upstream to downstream. The in-situ biological-ecological recovery integrated system does not need to occupy land area except for a riverway, is stable in treatment effect, does not influence drawing off of floodwater in the riverway, can be used for solving the problems of unqualified fluvial cross section water body and aquatic ecosystem damage and improving the landscape effect, and has great economical and social benefits.

Description

technical field [0001] The invention relates to environmental protection, in particular to an integrated system for in-situ biological ecological restoration of urban river water bodies. Background technique [0002] In recent years, with the rapid development of the economy, the excessive development and utilization of water resources has followed, and the discharge of various industrial wastewater, agricultural sewage and urban domestic sewage has brought serious pollution, which has led to the deterioration of the water quality of most rivers. Ecosystems have also been damaged. In particular, the water quality of rivers in northern my country is not optimistic. On the one hand, the rivers receive a large amount of pollutants. The main sources of pollution are industrial wastewater and domestic sewage discharged along the rivers. The water ecology of the river is seriously degraded, the self-purification ability of the water body is weak, and the pollution discharge brough...

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Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide an integrated system for in-situ bio-ecological restoration of urban river water, which can effectively prevent the water body of the river section from not reaching the standard and the destruction of the water ecosystem, thereby improving problem with landscape

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