Design Parameters of Riverbed Filtration Estimated from Geochemical Data
지구화학적 해석을 이용한 하상여과 설계인자에 대한 연구

Kang-Hee Cho, Bong-Ju Kim, Joong-Hyuk Ahn, Ki-Sung Rhim, Nag-Choul Choi, Cheon-Young Park
2013 The Journal of Engineering Geology  
This study investigates the design parameters for riverbed filtration (RBF) based on the geochemistry of river water and groundwater. The study area consists of alluvium, and the area is readily affected by non-point sources of chemical contaminants in the surface environment; this is expected to affect the design parameters for RBF. River and groundwater samples were collected at three points along the river flow and at nine points along a transect normal to the river, respectively. The
more » ... ctively. The geochemical data indicate that the sources of individual chemical contaminants are industrial facilities and agricultural activity near the study area. In addition, The samples are mainly Ca-Na-HCO 3 , Ca-Cl, and Ca-HCO 3 -Cl type waters. The design parameters of RBF in the study area should consider K, HCO 3 , NO 3 , and Cl. We divided the study area into three regions based on the concentrations of stable nitrogen isotopes: Region A, the origin of the river and denitrification; Region B, denitrification in the flow direction of tributaries; and Region C, the origin of natural soil, sewage, and anthropogenic pollution.
doi:10.9720/kseg.2013.4.493 fatcat:ftedriy545fmfa7wufo4woswmy