The Impact of Clogging Issues at a Riverbank Filtration Site in the Lalin River, NE, China: A Laboratory Column Study

Bin Hu, Linmei Liu, Ruihui Chen, Yi Li, Panwen Li, Haiyang Chen, Gang Liu and Yanguo Teng
Additional contact information
Bin Hu: Stake Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China
Linmei Liu: College of Water Sciences, Beijing Normal University, Beijing 100875, China
Ruihui Chen: Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Yi Li: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Panwen Li: Foreign Environmental Cooperation Center, Ministry of Ecology and Environment of China, Beijing 100035, China
Haiyang Chen: College of Water Sciences, Beijing Normal University, Beijing 100875, China
Gang Liu: Stake Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China
Yanguo Teng: College of Water Sciences, Beijing Normal University, Beijing 100875, China

Sustainability, 2022, vol. 14, issue 15, 1-14

Abstract: Although riverbank filtration (RBF) has been widely applied in China, the managers do not pay enough attention to the inevitable clogging issues during continuous RBF operation. The RBF site, which is located near the Lalin River, northeastern China, was selected as the study area, and the laboratory column experiments were used to simulate the RBF process and further investigate the physical and chemical clogging. The removal of turbidity (59.4–95.1%), COD (21.9–71.7%), NH 4 + (10.9–39.4%), Fe (18.5–64.8%), and Mn (19.8–71.7%) demonstrated the water quality improvement by RBF. Whereas, the significant decrease in permeability (39.6–88.2%) also indicated that the clogging issues could not be ignored during RBF. Among them, the physical clogging-dominated area, chemical clogging-dominated area, and the transition zone were located at 0–12.5%, 37.5–100%, and 12.5–37.5% of the infiltration pathway, respectively. Moreover, the concentration of suspended particle materials, mean size of riverbed sediments, and aquifer media are the major impact factors for physical clogging; the precipitation of soluble constituents and redox reaction and other hydrochemical processes were the major impact factors for chemical clogging. The conclusion of this study can contribute to managers alleviating the clogging issues and improving the effectiveness of the sustainable operation in the local RBF system.

Keywords: riverbank filtration; physical clogging; chemical clogging; column experiment; hydraulic conductivity (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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