River bank buffer zone for controlling non-point source pollution by using charcoal material

Abstract

The invention relates to river bank buffer zone for controlling non-point source pollution by using a charcoal material. The river bank buffer zone comprises a first soil layer, a charcoal material layer and a river, wherein first plants which are arranged regularly are uniformly arranged on the upper surface of the first soil layer; a bearing plate is laid on the upper surface of the charcoal material layer; the upper surface of the bearing plate is fixedly connected with the first soil layer; second plants which are arranged regularly are uniformly arranged on the upper surface of the river.When non-point source pollutants are led into the river bank buffer zone, firstly, water in a fluid is collected through a water collection pond, a part of the fluid is led into a settling layer, andunder the action of two macadam layers, granules in the fluid can be filtered; secondly, the fluid is led into the first soil layer and passes through a plurality of first plants, then chemical substances such as nitrogen and phosphorus in the fluid can be absorbed, the river is then prevented from pollution, when the chemical substances in the fluid are absorbed by first soil, under the action of the charcoal material layer, the first soil can be improved, the fertility can be improved, and heavy metals and organic pollutants in the first soil can be adsorbed.

Description

technical field [0001] The invention relates to the technical field of riparian buffer zones, in particular to a riparian buffer zone for controlling non-point source pollution by using biochar materials. Background technique [0002] The ecological buffer zone is a water and soil conservation management measure, which refers to a three-dimensional plant belt combining trees, shrubs and grasses that is not built in a certain area at the junction of the river and the land, and plays a certain buffer role between the farmland and the river; the first is to control soil erosion , to prevent river bed erosion and reduce sediment entering the river; the second is to use the adsorption and decomposition of plants in the buffer zone to reduce the nitrogen, phosphorus and other nutrients from agricultural areas entering the river, forming the last line of defense to control non-point source pollution, to achieve protection and improvement The purpose of water quality; the third is t...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of river bank buffer zone that utilizes biochar materials to control non-point source pollution, to solve the above-mentioned background technology, the treatment of rivers and banks generally adopts multiple vegetation restoration, but because the pollutants in the river flow with the water flow , the polluted area is large, the ability of aquatic plants to absorb pollutants in water is limited, and the removal effect of pollutants is not ideal

Images