Is dissolved Mn2+ being oxidized by O2 in absence of Mn-bacteria or surface catalysts? |
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| Authors: | Dieter Diem Werner Stumm |
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| Institution: | Institute of Aquatic Sciences (EAWAG), Swiss Federal Institute of Technology, (ETH) Zurich, Switzerland |
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| Abstract: | Homogeneous Mn(II) solutions that are not oversaturated with respect to MnCO3 or Mn(OH)2, in the absence of catalysts, remain in the presence of dissolved oxygen unoxidized for periods in excess of seven years. Measurable oxygenation rates are observed in solutions that are oversaturated with respect to MnCO3 or in waters containing “Mn-bacteria” or other surface catalysts. |
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