Combined cascade purification system for ecological tree pools and biological detention pools on river and lake bank slopes

Abstract

The invention discloses a combined cascade purification system for ecological tree pools and biological detention pools on river and lake bank slopes, which comprises multiple-stage purification structures, each-stage purification structure is connected in series in multiple steps from top to bottom, and each-stage purification structure outputs purified water to outside through a water outlet pipe at the bottom to a next-stage purification structure until a river and lake terminal water body; each purification structure is an ecological tree pool or a biological detention pool, the functionsof multiple interception of pollution, water purification and water storage can be realized, and finally clean water sources are supplies to the river and lake water body, thus solving the problem ofnon-point source input leading to water pollution in the river and lake. According to the invention, a river and lake bank cascade pollutant interception and purification system with different landscape levels is constructed, the omni-directional interception of runoff pollution input from the river and lake bank slopes is realized, the interception and purification effect is greatly enhanced, andthe problem that excessive overflow rainwater can not be intercepted and purified well is well solved.

Description

technical field [0001] The invention relates to the field of water environment treatment. Specifically, it is a cascade purification system combined with an ecological tree pond and a bioretention pond for slope banks of rivers and lakes. Background technique [0002] In the design and construction of traditional river and lake embankments, in order to ensure the safety of flood discharge, hard embankments are generally used. This kind of hard embankment is unsightly, boring, and loses the ecological diversity and hydrophilic space of embankment animals and plants. The second is that the connection between the soil and the water body is broken, and the self-purification ability of the water is reduced. The third is that the surface runoff lacks the blocking and adsorption of the plant root system, and the entrained pollutants drive straight in, which eventually leads to the eutrophication of the river and lake water, the deterioration of the water quality, and black and smel...

AI Technical Summary

Problems solved by technology

It realizes all-round interception of the runoff pollution input from the embankment, greatly enhances the interception and purification effect, and solves the problem that excessive overflow rainwater cannot be well intercepted

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