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- Title
Cadmium mobilisation under conditions simulating anaerobic to aerobic transition in a landfill leachate-polluted aquifer
- Authors
Altmann, R. S.; Bourg, A. C. M.
- Abstract
The anaerobic conditions in landfill leachate-polluted aquifers can lead to trapping of many heavy metals as sulfide precipitates. In laboratory experiments with aqueous systems containing sulfidic solid phases (aquifer solids from a landfill leachate plume or amorphous FeS), cadmium previously trapped as a sulfide precipitate was released tothe aqueous phase when conditions were changed from initially slightly anaerobic to aerobic. Cadmium was subsequently removed from solution either by adsorption on Fe oxyhydroxide phases or by precipitationas a carbonate mineral, groundwater pH being the major controlling variable.
- Subjects
LANDFILLS; GROUNDWATER pollution
- Publication
Water, Air & Soil Pollution, 1997, Vol 94, Issue 3-4, p385
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/BF02406070