D
David B. Watson
Researcher at Oak Ridge National Laboratory
Publications - 118
Citations - 6403
David B. Watson is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Nitrate & Uranium. The author has an hindex of 40, co-authored 115 publications receiving 5900 citations. Previous affiliations of David B. Watson include University of Tennessee & Florida State University.
Papers
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Journal ArticleDOI
A catalytic beacon sensor for uranium with parts-per-trillion sensitivity and millionfold selectivity
Juewen Liu,Andrea K. Brown,Xiangli Meng,Donald M. Cropek,Jonathan D. Istok,David B. Watson,Yi Lu +6 more
TL;DR: This work shows that simple, cost-effective, and portable metal sensors can be obtained with similar sensitivity and selectivity as much more expensive and sophisticated analytical instruments.
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In situ bioreduction of technetium and uranium in a nitrate-contaminated aquifer.
Jonathan D. Istok,John M. Senko,Lee R. Krumholz,David B. Watson,M A Bogle,Aaron D. Peacock,Yun-Juan Chang,David C. White +7 more
TL;DR: The results suggest that NO3(-)-dependent microbial U(IV) oxidation may inhibit or reverse U(VI) reduction and decrease the stability of U( IV) in this environment.
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Metagenomic insights into evolution of a heavy metal-contaminated groundwater microbial community
Christopher L. Hemme,Ye Deng,Terry J. Gentry,Terry J. Gentry,Matthew W. Fields,Liyou Wu,Liyou Wu,Soumitra Barua,Soumitra Barua,Kerrie Barry,Susannah G. Tringe,David B. Watson,Zhili He,Terry C. Hazen,James M. Tiedje,Edward M. Rubin,Jizhong Zhou,Jizhong Zhou +17 more
TL;DR: Metagenomic analysis of a stressed groundwater microbial community reveals that prolonged exposure to high concentrations of heavy metals, nitric acid and organic solvents has resulted in a massive decrease in species and allelic diversity as well as a significant loss of metabolic diversity.
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Pilot-scale in situ bioremedation of uranium in a highly contaminated aquifer. 2. Reduction of u(VI) and geochemical control of u(VI) bioavailability.
Wei-Min Wu,Jack Carley,Terry J. Gentry,Matthew Ginder-Vogel,Michael N. Fienen,Tonia L. Mehlhorn,Hui Yan,Sue Caroll,Molly N. Pace,Jennifer L. Nyman,Jian Luo,Margaret Gentile,Matthew W. Fields,Robert F. Hickey,Baohua Gu,David B. Watson,Olaf A. Cirpka,Jizhong Zhou,Scott Fendorf,Peter K. Kitanidis,Philip M. Jardine,Craig S. Criddle +21 more
TL;DR: Changes in the sequence of carbonate and ethanol addition confirmed that carbonate-controlled desorption increased bioavailability of U(VI) for reduction.
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Performance evaluation of a zerovalent iron reactive barrier: Mineralogical characteristics
TL;DR: In this article, the effects of mineral precipitates and corrosion on the lifespan and long-term performance of in situ Fe0 reactive barriers are investigated and the objectives of this paper are described.