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
A polymer material and underground runoff technology, which is applied in the field of infiltration devices for the interception and removal of nitrogen and phosphorus in farmland runoff, can solve threats to the regional water environment and water ecological security, restrict economic and social sustainable development, and the entry of nitrogen and phosphorus nutrients, etc. problem, to achieve the effect of material saving, long service life and strong pressure bearing capacity
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[0023] like Figure 1-4 As shown, a nitrogen and phosphorus interception and removal device for farmland subsurface runoff based on triangular prism-shaped drainage body, polymer material percolation net and rice husk combined infiltration, is made of polyvinyl chloride (PVC) or polyethylene (PE). The support 2 inside the prism is wrapped with a water-permeable geotextile 3 to form a drainage body with stable water permeability, and the outer part is composed of a polymer material percolation net 4, rice husk 1 and other materials to form a combined percolation layer, forming a polymer material percolation net, rice husk, etc. Shell-based combined infiltration system for nitrogen and phosphorus interception of subsurface runoff from farmland.
[0024] The stent 2 in the triangular prism is made of polyvinyl chloride (PVC) or polyethylene (PE), and the cross section is an isosceles triangle with a base length of 8 cm and a height of 10 cm, and the length of each segment is 6 m....
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