The Effect of Different Artificial Soil on Urban Non-Point Source Pollution Reduction in the Artificial Rapid Infiltration System

Autor:	Langrun Song, Jingyang Luo, Junfeng Wu, Zhaoxia Xue, Qian Feng
Rok vydání:	2018
Předmět:	Pollutant Pollution Infiltration (hydrology) media_common.quotation_subject Soil water Environmental engineering Environmental science Sewage treatment Permeability coefficient Urban water Nonpoint source pollution media_common
Zdroj:	Journal of Geoscience and Environment Protection. :67-76
ISSN:	2327-4344 2327-4336
DOI:	10.4236/gep.2018.611005
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e9b7ef6fe758ac16ee22274c093130c https://doi.org/10.4236/gep.2018.611005 Zobrazit plný text záznamu