Field Application of238 U/235 U Measurements To Detect Reoxidation and Mobilization of U(IV)

Environmental Science & Technology
N E JemisonKenneth H Williams

Abstract

Biostimulation to induce reduction of soluble U(VI) to relatively immobile U(IV) is an effective strategy for decreasing aqueous U(VI) concentrations in contaminated groundwater systems. If oxidation of U(IV) occurs following the biostimulation phase, U(VI) concentrations increase, challenging the long-term effectiveness of this technique. However, detecting U(IV) oxidation through dissolved U concentrations alone can prove difficult in locations with few groundwater wells to track the addition of U to a mass of groundwater. We propose the238U/235U ratio of aqueous U as an independent, reliable tracer of U(IV) remobilization via oxidation or mobilization of colloids. Reduction of U(VI) produces238U-enriched U(IV), whereas remobilization of solid U(IV) should not induce isotopic fractionation. The incorporation of remobilized U(IV) with a high238U/235U ratio into the aqueous U(VI) pool produces an increase in238U/235U of aqueous U(VI). During several injections of nitrate to induce U(IV) oxidation,238U/235U consistently increased, suggesting238U/235U is broadly applicable for detecting mobilization of U(IV).

References

Mar 16, 2002·Science·Andre S EllisThomas D Bullen
May 10, 2002·Environmental Science & Technology·John M SenkoLee R Krumholz
Jan 31, 2004·Environmental Science & Technology·J D IstokD C White
May 18, 2006·Annual Review of Microbiology·Judy D Wall, Lee R Krumholz
Sep 30, 2006·Environmental Science & Technology·Aaron ThompsonJon Chorover
Aug 19, 2007·Environmental Science & Technology·Hee Sun MoonPeter R Jaffé
Sep 6, 2008·Journal of Hazardous Materials·Maria GavrilescuIgor Cretescu
Nov 27, 2008·Environmental Science & Technology·Eleanor J SchofieldJohn R Bargar
May 18, 2010·Environmental Science & Technology·Kelly E FletcherFrank E Löffler
Nov 13, 2010·Environmental Science & Technology·Rizlan Bernier-LatmaniJohn R Bargar
Jan 22, 2011·Environmental Science & Technology·Gregory A BrenneckaAriel D Anbar
Aug 19, 2011·Environmental Science & Technology·Maxim I BoyanovKenneth M Kemner
Oct 13, 2011·Environmental Science & Technology·Li LiSusan S Hubbard
Dec 7, 2011·Environmental Science & Technology·Julian BoschRainer U Meckenstock
Aug 3, 2013·Environmental Science & Technology·José M CerratoDaniel E Giammar
Oct 10, 2013·Environmental Science & Technology·Malgorzata StyloRizlan Bernier-Latmani
Dec 18, 2013·Environmental Science & Technology·Yuqiang Bi, Kim F Hayes
Dec 19, 2013·Nature Communications·Yuheng WangRizlan Bernier-Latmani
Sep 30, 2014·Environmental Science & Technology·Daniel S AlessiJohn R Bargar
Dec 20, 2014·Environmental Science & Technology·Julian CarpenterKim F Hayes
Jan 17, 2015·Nature·Morten B AndersenKatherine A Kelley
Feb 17, 2015·Earth and Planetary Science Letters·Tais W DahlMartin Bizzarro
Apr 23, 2015·Proceedings of the National Academy of Sciences of the United States of America·Malgorzata StyloRizlan Bernier-Latmani
Feb 22, 2016·Journal of Contaminant Hydrology·Charles J ParadisJonathan D Istok
Oct 30, 2016·Environmental Science & Technology·N E JemisonC C Lundstrom

❮ Previous
Next ❯

Citations

Jan 7, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Annika Carolin MaierMats Jonsson
May 27, 2021·Environmental Science & Technology·Yvonne RoebbertStefan Weyer
Feb 27, 2019·Environmental Science & Technology·Pierre LefebvreKate Maher
Jan 30, 2020·Environmental Science & Technology·Xinming ChenAriel D Anbar

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.