Journal
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
Volume 34, Issue 4, Pages 539-550Publisher
SPRINGER
DOI: 10.1007/s10653-011-9423-1
Keywords
Groundwater pollution; Stable isotope analysis; Enhanced bioremediation; Natural attenuation
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Funding
- University of Arizona TRIF Water Sustainability Program through the Center for Environmentally Sustainable Mining, Schlumberger Inc.
- NIEHS [P42 ES04940]
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Sulfate is ubiquitous in groundwater, with both natural and anthropogenic sources. Sulfate reduction reactions play a significant role in mediating redox conditions and biogeochemical processes for subsurface systems. They also serve as the basis for innovative in situ methods for groundwater remediation. An overview of sulfate reduction in subsurface environments is provided, along with a brief discussion of characterization methods and applications for addressing acid mine drainage. We then focus on two innovative, in situ methods for remediating sulfate-contaminated groundwater, the use of zero-valent iron and the addition of electron-donor substrates. The advantages and limitations associated with the methods are discussed, with examples of prior applications.
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