MANGANESE CYCLE IN IMPOUNDMENT WATER |
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| Authors: | Calvin P C Poon Frank J DeLuise |
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| Institution: | Assistant Professor of Civil Engineering and Associate Professor of Mechanical Engineering, University of Rhode Island, Kingston, Rhode Island. |
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| Abstract: | Manganese entering impounded water will undergo a cyclic transformation. Oxidation precipitates manganese from top waters. At the bottom of the lake, biological activity will render manganese soluble by both intracellular as well as extracellular activity. The study was made to demonstrate that biological reduction and transformation, organometallic complexation, together with the presence of carbon dioxide and the lowering of pH all have some effect on the solubility of manganese. Dissolved manganese may be brought back to top waters during the lake overturn and therefore deteriorates the water quality. |
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| Keywords: | Manganese cycle biological reduction complexation impoundment lake overturn |
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