Renewable Filler-Plant Combined Ditch-Slope Protection Nitrogen and Phosphorus Ecological Interception System

Abstract

The invention discloses a renewable filler-plant combined type ditch-revetment nitrogen and phosphorus ecological interception system. The renewable filler-plant combined type ditch-revetment nitrogen and phosphorus ecological interception system comprises a ditch with the trapezoidal section. The ditch is arranged between farmland and a riverway, and the wall, adjacent to one side of the riverway, of the ditch is connected with an ecological revetment. The walls of the ditch are both paved with three-dimensional ditch plant nets, the three-dimensional ditch plant nets are paved with anti-seepage concrete blocks, and revetment plants are planted in the hollow portions of the anti-seepage concrete blocks. The bottom of the ditch is paved with anti-seepage concrete blocks and a ditch filler layer from bottom to top, and aquatic plants are planted in the hollow portions of the anti-seepage concrete blocks. The ecological revetment comprises a riverway embankment, the riverway embankment is paved with a revetment filler layer, the revetment filler layer is paved with a three-dimensional revetment plant net, and revetment plants are planted on the three-dimensional revetment plant net. The renewable filler-plant combined type ditch-revetment nitrogen and phosphorus ecological interception system has the beneficial effects of being high in treatment efficiency, wide in application range, good in landscape effect and the like and is suitable for purifying treatment of farmland sewage.

Description

technical field [0001] The invention relates to a water body purification system, more specifically, to a renewable filler-plant combined ditch-slope protection nitrogen and phosphorus ecological interception system. Background technique [0002] The use of chemical fertilizers in my country ranks first in the world, but the utilization rate of chemical fertilizers is very low. Excessive use of chemical fertilizers and unreasonable fertilization structure lead to a large amount of fertilizer loss after rainfall and irrigation, and the runoff containing a large amount of nitrogen and phosphorus nutrients is directly discharged into rivers or lakes. It poses a serious threat to the eutrophication of water bodies. Studies have shown that the eutrophication of Taihu Lake is directly related to agricultural non-point source pollution. Agricultural non-point source pollution has become one of the main sources of water pollution in my country, and it is imperative to control non-po...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a renewable filler-plant combined ditch-slope protection nitrogen and phosphorus ecological interception system integrating sewage transportation, interception and purification. There are ditches and river bank revetments, which solve the problem of ecological engineering occupying a lot of cultivated land, and have the characteristics of high treatment efficiency, wide application range, and good landscape effects.

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