Construction method of bow-shaped ecological corridor for purifying low-pollution water entering river

Abstract

Belonging to the technical field of resource and environment protection, the invention provides a construction method of a bow-shaped ecological corridor for purifying low-pollution water entering river. The construction method of the bow-shaped ecological corridor for purifying low-pollution water entering river includes construction of a system diverting water into a river and construction of awater corridor, and the construction method of a water corridor includes: a. setting a U-shaped water blocking grid in the water corridor to enclose low-pollution water entering the river in the U shape to flow; b. arranging a plurality of water isolation belts formed by combination of water blocking grids and grilles in the water corridor; c. laying a geomembrane at the bottom of the water corridor; d. laying zeolite over the geomembrane; e. arranging a plurality of sewage disposal pipes between two adjacent water isolation belts; f. laying a fishing net on the water surface of the water corridor; and g. laying floating plants on the fishing net of the water corridor. The method provided by the invention can realize settlement promotion and purification of pipe drainage or ditch drainagerainfall runoff of various riverways and agricultural production drainage pollutants.

Description

technical field [0001] The invention belongs to the technical field of resources and environment protection, and relates to a bow-shaped ecological corridor, in particular to a construction method of a bow-shaped ecological corridor for purifying low-pollution water entering a river. Background technique [0002] With the effective control of point source pollution such as industrial wastewater and urban domestic sewage in our country, non-point source pollution mainly caused by rainfall runoff and agricultural production drainage have replaced point sources as the most important source of water environmental pollution. [0003] At present, through the construction of sponge cities in China, good results have been achieved in reducing the stock of rainfall runoff and reducing the pollution load in drainage; at the same time, many effective methods have been developed in terms of rural non-point source pollution control, especially In terms of farmland non-point source pollut...

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Problems solved by technology

[0004] Due to the small per capita arable land area in my country, it is impossible to build water corridors that can meet their needs, and the treatment technology of riverside and pond systems is at the expense of production such as water aquaculture, and due to the layout of riversides and ponds, it is also Limits the practical application of the technology

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