Lecture Notes (PDF) - Aqueous and Environmental Geochemistry
Lecture Notes (PDF) - Aqueous and Environmental Geochemistry
Lecture Notes (PDF) - Aqueous and Environmental Geochemistry
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<strong>Environmental</strong> <strong>Geochemistry</strong>DM Sherman, University of Bristol2007/2008Remediation of Acid Mine Waste IA plausible method to deal with acid mine water would beto neutralize it using carbonate (Calcite, CaCO 3 ).2H + + CaCO 3 = Ca +2 + CO 2Trials of this method in CwmRheidol, Wales were notencouraging. A precipitate ofCaSO 4 formed on the surfaceof calcite <strong>and</strong> prevented theabove reaction.Sulphate-Reducing BacteriaThese bacteria live in soil <strong>and</strong>aquatic environments; they arestrict anaerobes <strong>and</strong> use(SO 4 ) 2- as an electron acceptor(“dissimilatory sulfatereduction”). Desulfovibrio <strong>and</strong> Desulfotomaculum are twoimportant genera.Page 10
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