The regulation of trace element concentrations in river and estuarine waters contaminated with acid mine drainage: The adsorption of Cu and Zn on amorphous Fe oxyhydroxides |
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| Institution: | 1. Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic;2. Department of Geology, Faculty of Science, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic;3. Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University, Albertov 6, 128 43 Prague 2, Czech Republic;1. Carlsbad Environmental Monitoring & Research Center, 1400 University Drive, Carlsbad, NM, 88220, USA;2. AECOM, Carlsbad Operations, Carlsbad, NM, 88220, USA;1. School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China;2. Department of Food, Guangdong Light Industry Technical College, Guangzhou 510300, China;1. Large Lakes Research Station, 9311 Groh Road, Grosse Ile, MI 48138, USA;2. Z-Tech Corporation, ICF Company, Large Lakes Research Station, 9311 Groh Road, Grosse Ile, MI 48138, USA;3. United States Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, Duluth, Large Lakes and Rivers Forecasting Research Branch, Large Lakes Research Station, 9311 Groh Road, Grosse Ile, MI 48138, USA |
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| Abstract: | The partition of Cu and Zn between the particulate and dissolved phases has been investigated in the Carnon River and Restronguet Creek, England; a system contaminated by acid mine drainage. It is shown that binding to the surfaces of amorphous Fe oxyhydroxides regulates Cu and Zn concentrations in solution, in both fresh and saline waters. The sorptive process is pH dependent and is in general agreement with laboratory studies of trace metal adsorption on amorphous Fe oxyhydroxides. |
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