In situ bioreduction of technetium and uranium in a nitrate-contaminated aquifer.

  title={In situ bioreduction of technetium and uranium in a nitrate-contaminated aquifer.},
  author={Jonathan D. Istok and John M. Senko and Lee R. Krumholz and David M Watson and Mary Anna Bogle and Aaron A. Peacock and Y. J. Chang and D. Carl White},
  journal={Environmental science & technology},
  volume={38 2},
The potential to stimulate an indigenous microbial community to reduce a mixture of U(VI) and Tc(VII) in the presence of high (120 mM) initial NO3- co-contamination was evaluated in a shallow unconfined aquifer using a series of single-well, push-pull tests. In the absence of added electron donor, NO3-, Tc(VII), and U(VI) reduction was not detectable. However, in the presence of added ethanol, glucose, or acetate to serve as electron donor, rapid NO3- utilization was observed. The accumulation… CONTINUE READING
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