Ecological filter dam used for small and medium river channel treatment

Abstract

The invention provides an ecological filter dam used for small and medium river channel treatment. The ecological filter dam comprises a filter dam body, the filter dam body is sequentially composed of a dam base and filter layers in sequence from bottom to top, anti-seepage layers are arranged between the dam base and the filter layers, water fenders are arranged on the two sides and the rear ends of the filter layers, and a water extension plate is arranged at the upper end of the water fender on the rear end of the filter layers. Two to five filter layers are arranged, the anti-seepage layers are arranged between the filter layers, the permeating coefficients of the filter layers are sequentially reduced from bottom to top, and gabion boxes are adopted by the filter layers, and are filled with biological filler. Compared with the prior art, the ecological filter dam has the advantages that the dam base, the filter layers, the anti-seepage layers, the water fenders and the water extension plate are of a whole component splicing structure, the good integrality and stability are achieved, the service life is longer, the purification capacity of polluted water is higher, and the good drop reoxygenation capacity is achieved.

Description

technical field [0001] The invention relates to the field of environmental management of small and medium-sized rivers, in particular to an ecological filter dam used for the treatment of small and medium-sized rivers. Background technique [0002] Due to the random discharge of industrial wastewater and domestic sewage, as well as non-point source pollution caused by agricultural chemical fertilizers and pesticides, the water quality of the river has been seriously deteriorated. The degradation of rivers and the loss of ecosystem functions have become a global environmental problem. The research and time on the restoration or reconstruction of river ecosystems and the restoration of river ecosystem functions have also received more and more attention and attention from the international community. River management imminent. [0003] As a common technical measure in river channel management projects, ecological filter dams are built with gravel, pebbles or biological filler...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional ecological filter dams are generally unstable and easy to block, and are prone to deformation and rupture under the influence of seepage, settlement, wind, waves, and rain. poor

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