Author(s)

Junfeng Wu¹, Langrun Song^2,3, Qian Feng^2,3, Jingyang Luo^2,3, Zhaoxia Xue^2,3*

¹Academy of Environmental Planning & Design Co. Ltd., Nanjing University, Nanjing, China.
²Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, China.
³College of Environment, Hohai University, Nanjing, China.

The non-point source pollution posed great risks to the urban water environment which has aroused great concerns. Artificial rapid infiltration systems have been widely used in sewage treatment, which have great environmental and economic values. This study investigated the potential of utilizing artificial rapid infiltration systems on the reduction of urban non-point source pollution. The obtained results showed that the components and composition of artificial soils were vital to the operational performance. The mixture of natural soil, coarse sand and zeolite was ideal for the construction of artificial soils. The permeability coefficient of soils could be improved to 0.166 cm/min at the optimized ratio of 1:1:0.05 (natural soil, coarse sand and zeolite). Also, high removal efficiency for the typical pollutants in rain runoffs (i.e. COD, NH₄⁺-N, TN and TP) could be simultaneous obtained which was above 74% in the artificial rapid infiltration systems. The results demonstrated the effectiveness on the reduction of urban non-point pollution by optimized artificial rapid infiltration system.

Non-Point Source Pollution, Artificial Rapid Infiltration System, Permeability Coefficient, Zeolite, Pollutants, Removal Efficiency

Wu, J. , Song, L. , Feng, Q. , Luo, J. and Xue, Z. (2018) The Effect of Different Artificial Soil on Urban Non-Point Source Pollution Reduction in the Artificial Rapid Infiltration System. Journal of Geoscience and Environment Protection, 6, 67-76. doi: 10.4236/gep.2018.611005.