Method for preparing efficient agricultural water filtration system for slope land

• Main Authors: LOU XIANYONG, WANG XIANWEN, BAI XIANFA, GAO JIANEN, ZHANG XINGCHEN, GAO ZHE
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2014
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a water filtration system formed by a header field, a vegetative filter strip and a filter pond, wherein the vegetative filter strip is arranged between the heater field and the filter pond and used for filtering rainfall runoff erosion sediments and nonpoint source pollutants; the filter tank is used for filtering straw sundries entering the vegetable filter strip; effluent of the filter pond is connected to a water storage device; the length of the vegetable filtering strip along the radial direction is 5-7m; the width is not smaller than 3m; the gradient is not greater than 1%. The vegetable filter strip adopts an energy forage switchgrass of which the planting coverage is over 80%, and the height of the energy forage switchgrass is greater than 30cm. Theoretical calculation and test detection prove that the maximal intercept effects of the vegetable filter strip on the total phosphorus and the sediment respectively achieve 93.6% and 98.62%, the maximal intercept effect on the chemi