Small ecological corridor for intercepting and purifying runoff pollutants in rivers

Abstract

The invention provides a small ecological corridor for blocking and purifying runoff pollutants in rivers, which is composed of an intercepting and collecting system and a purifying system, wherein the intercepting and collecting system consists of an intercepting and collecting corridor frame (1) and intercepting and collecting filling matrix (2); and the purifying system consists of a purifying matrix (3) and purifying plants (4). The ecological corridor can effectively intercept and purify the runoff pollutants in the rivers, particularly in catchment areas of rural rivers, and besides, the used materials have no any ecological risk; and the small ecological corridor is simple in design, low in cost and low in running and maintaining cost.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a small-scale ecological corridor for blocking and purifying pollutants from river runoff. Background technique [0002] Water pollutants in river courses mainly come from two categories: drainage and rainfall runoff in domestic and various production processes. Among them, drainage in life and various production processes is relatively easy to control and purify artificially, while in rural areas, rainfall runoff is difficult to control artificially, and generally flows into nearby rivers and discharges disorderly. At present, the ecological ditch system inside the farmland or the wetland purification system in the coastal zone are generally used to control the runoff pollution of rural rivers. Although the ecological ditch technology can partially intercept and purify the runoff pollutants inside the farmland, it has a large instantaneous flow rate and a high c...

AI Technical Summary

Problems solved by technology

At present, the ecological ditch system inside the farmland or the wetland purification system in the coastal zone are generally used to control the runoff pollution of rural rivers. Although the ecological ditch technology can partially intercept and purify the runoff pollutants inside the farmland, it has a large instantaneous flow rate and a high concentration of pollutants. When it is difficult to meet the appropriate residence time, the treatment efficiency is low; wetland purification is through the construction of subsurface or surface flow wetlands in a large area of ​​​​the river bank, and through the rational planning and layout of ditches in the catchment area of ​​​​the river. , so that the runoff flows into the wetland system, which can continuously intercept and efficiently purify the runoff pollutants in the coastal catchment area. The implementation of relatively large-scale river courses and areas with construction space limits the promotion and application of this technology

At the same time, when the above technologies deal with river catchment runoff pollution, they do not integrate the river itself into the treatment system, but only intercept and purify the runoff. Although sometimes higher treatment efficiency can be obtained, the treatment cost is also higher

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