Cr and As decrease lindane sorption on river solids
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- 作者：Zhiyong Guo ; Deming Dong ; Xiuyi Hua ; Liwen Zhang…
- 关键词：Sorption ; Biofilm ; Suspended particle ; Sediment ; Lindane ; Chromium ; Arsenic
- 刊名：Environmental Chemistry Letters
- 出版年：2015
- 出版时间：March 2015
- 年：2015
- 卷：13
- 期：1
- 页码：111-116
- 全文大小：261 KB
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Deming Dong (1)
Xiuyi Hua (1)
Liwen Zhang (1)
Shijia Zhu (1)
Xinhui Lan (1)
Dapeng Liang (1)
1. Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of Environment and Resources, Jilin University, Changchun, 130012, People’s Republic of China- 刊物类别：Earth and Environmental Science
- 刊物主题：Earth sciences
Geochemistry
Analytical Chemistry
Biochemistry
Monitoring, Environmental Analysis and Environmental Ecotoxicology
Soil Science and Conservation
Waste Water Technology, Water Pollution Control, Water Management and Aquatic Pollution- 出版者：Springer Berlin / Heidelberg
- ISSN：1610-3661
- 作者单位：Zhiyong Guo (1)
文摘
The fate of a pollutant in water is modified by sorption onto solids and by interaction with other pollutants. Actual knowledge is mainly focussed on pollutant sorption by sediments, whereas little is known about the roles of natural biofilms and suspended particles. Moreover, few investigations report on the interaction of co-occurring pollutants. Here, we studied the sorption of the lindane pesticide by natural biofilms, suspended particles, and river sediments using batch experiments. We also measured the effects of Cr(VI) and As(V) on lindane sorption. Results show that more lindane is adsorbed by biofilms than by suspended particles and sediments on a total mass basis, whereas the sediments had a higher lindane sorption capacity per unit mass organic carbon than suspended particles and biofilms. Co-occuring Cr(VI) or As(V) decreased lindane sorption on the biofilms by about 48?%. To our best knowledge, this is the first report showing that Cr(VI) and As(V) decrease the sorption of hydrophobic organic contaminants on river solids.