Farmland groundwater runoff nitrogen and phosphorus intercepting and removing combined infiltration device based on triangular-prism-shaped high molecular material infiltration net and application method of farmland groundwater runoff nitrogen and phosphorus intercepting and removing combined infiltration device

Abstract

The invention discloses a combined infiltration farmland groundwater runoff nitrogen and phosphorus intercepting and removing device with a triangular-prism-shaped high molecular material infiltration net as the main part and with rice hulls and permeable geotechnical cloth as the auxiliary parts and an application method of the combined infiltration farmland groundwater runoff nitrogen and phosphorus intercepting and removing device, and belongs to the technical field of farmland groundwater runoff nitrogen and phosphorus intercepting and removing methods. The farmland groundwater runoff nitrogen and phosphorus intercepting and removing combined infiltration device based on the triangular-prism-shaped high molecular material infiltration net comprises an inner triangular prism inner support made of PVC or PE, and an outer portion is formed in the manner that the periphery of the support is wrapped by the high molecular material infiltration net, the permeable geotechnical cloth, the rice hulls and other materials from interior to exterior. The invention further discloses the application method of the above infiltration device. The infiltration device is simple in structure, convenient to construct, long in service life, good in sludge plugging preventing capability and good in drainage effect, has a good nitrogen and phosphorus pollutant intercepting and removing effect and has an important significance for improving the quality of agricultural water in China and relieving the water eutrophication condition. Meanwhile, the infiltration device can treat a large amount of agricultural waste as well, materials are free of toxicity and pollution, energy saving and environment friendliness are achieved, and cost is low.

Description

technical field [0001] The invention relates to a combined percolation device based on a triangular prism-shaped polymer material percolation net for intercepting and removing nitrogen and phosphorus in farmland underground runoff and an application method thereof, and belongs to the technical field of percolation devices for intercepting and removing nitrogen and phosphorus in farmland runoff. Background technique [0002] According to the Bulletin of the First National Survey of Pollution Sources, the total nitrogen emissions from agricultural sources were 2.7046 million tons, accounting for 57.2% of the total emissions, and mainly flowed out through farmland runoff. Farmland non-point source pollution causes a large amount of nitrogen and phosphorus nutrients to enter rivers and lakes, leading to eutrophication of water bodies, seriously threatening the regional water environment and water ecological security, and restricting the sustainable development of the economy and ...

AI Technical Summary

Problems solved by technology

Farmland non-point source pollution causes a large amount of nitrogen and phosphorus nutrients to enter rivers and lakes, leading to eutrophication of water bodies, seriously threatening regional water environment and water ecological security, and restricting sustainable economic and social development

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