Redox Potential Measurements in Natural Waters: Significance, Concepts and Problems
The characterisation of redox conditions in natural aquatic systems is both of scientific and of practical significance. The biogeochemical processes in anoxic systems have been studied in many instances in lakes, sediments and groundwater (e.g. Heron et al., 1994; Urban et al., 1997). To which extent the redox reactions occur in a certain system and which reduced species are present, such as reduced iron, manganese(II) and sulfide, is significant with regard to many practical problems, like use of groundwater for drinking water or remediation of contaminated sites. With regard to groundwater, the redox conditions downstream of landfills, which release large amounts of degradable compounds, need to be understood and characterised (Amirbahman et al., 1998; Heron & Christensen, 1995).
KeywordsNatural Water Redox Reaction Redox Couple Redox Species Municipal Solid Waste Landfill
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