title: Release of heavy metals from sediment bed under wave-induced liquefaction.
abstract: Sediments in lakes and coasts can release metals into water via static diffusion and especially resuspension. The resuspension under sediment liquefaction may severely affect the concentrations of metals in water. In this study, flume experiments were carried out twice to study the release of two metal combinations (Zn and Pb; Zn and Cu), respectively. Each experiment included three phases: consolidation; non-liquefaction and liquefaction. Results showed that total Zn concentration at liquefaction phase increased by a maximum rate of 26 compared with the consolidation phase. The concentration of particulate Zn at liquefaction phase increased by a maximum rate of 8.30 compared with the non-liquefaction phase. The average concentration of dissolved Zn at the liquefaction phase increased up to 0.24 times from the consolidation phase. Total Zn concentration at the non-liquefaction phase increased by several times compared with the consolidation phase. Metals were homogeneously distributed in the liquefaction layer through wave actions.
authors.affiliation: Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, PR China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China.
authors.forename: Zhenhong
authors.initials: Z
authors.lastname: Sun
authors.affiliation: Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, PR China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China. Electronic address: xuguohui@ouc.edu.cn.
authors.forename: Guohui
authors.initials: G
authors.lastname: Xu
authors.affiliation: College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China.
authors.forename: Ting
authors.initials: T
authors.lastname: Hao
authors.affiliation: Institute for Sedimentation on River and Coastal Engineering, Tianjin University, Tianjin 300072, PR China.
authors.forename: Zhe
authors.initials: Z
authors.lastname: Huang
authors.affiliation: Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, PR China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China.
authors.forename: Hongru
authors.initials: H
authors.lastname: Fang
authors.affiliation: Production Brigade of Geology and Hydrogeology, Bureau of Geology and Mineral Resources of Hebei Province, Qinhuangdao 066000, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
mesh_terms: D003300:Copper / Q000737:chemistry; D019015:Geologic Sediments / Q000737:chemistry*; D060106:Lakes; D007854:Lead / Q000737:chemistry; D019216:Metals, Heavy / Q000032:analysis / Q000737:chemistry*; D014867:Water; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D014867:Water; D007854:Lead; D003300:Copper; D015032:Zinc
keywords: Flume experiment; Heavy metals; Liquefaction; Sediment