Search Results - "Szecsody, Jim"

Iodine immobilization by materials through sorption and redox-driven processes: A literature review by Moore, Robert C., Pearce, Carolyn I., Morad, Joseph W., Chatterjee, Sayandev, Levitskaia, Tatiana G., Asmussen, Robert M., Lawter, Amanda R., Neeway, James J., Qafoku, Nikolla P., Rigali, Mark J., Saslow, Sarah A., Szecsody, Jim E., Thallapally, Praveen K., Wang, Guohui, Freedman, Vicky L.

“…Radioiodine-129 (129I) in the subsurface is mobile and limited information is available on treatment technologies. Scientific literature was reviewed to…”
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Technetium immobilization by materials through sorption and redox-driven processes: A literature review by Pearce, Carolyn I., Moore, Robert C., Morad, Joseph W., Asmussen, R. Matthew, Chatterjee, Sayandev, Lawter, Amanda R., Levitskaia, Tatiana G., Neeway, James J., Qafoku, Nikolla P., Rigali, Mark J., Saslow, Sarah A., Szecsody, Jim E., Thallapally, Praveen K., Wang, Guohui, Freedman, Vicky L.

“…The objective of this review is to evaluate materials for use as a barrier or other deployed technology to treat technetium-99 (Tc) in the subsurface. To…”
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Evaluation of materials for iodine and technetium immobilization through sorption and redox-driven processes by Pearce, Carolyn I., Cordova, Elsa A., Garcia, Whitney L., Saslow, Sarah A., Cantrell, Kirk J., Morad, Joseph W., Qafoku, Odeta, Matyáš, Josef, Plymale, Andrew E., Chatterjee, Sayandev, Kang, Jaehyuk, Colon, Ferdinan Cintron, Levitskaia, Tatiana G., Rigali, Mark J., Szecsody, Jim E., Heald, Steve M., Balasubramanian, Mahalingam, Wang, Shuao, Sun, Daniel T., Queen, Wendy L., Bontchev, Ranko, Moore, Robert C., Freedman, Vicky L.

“…Radioactive iodine-129 (129I) and technetium-99 (99Tc) pose a risk to groundwater due to their long half-lives, toxicity, and high environmental mobility…”
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Persistence of chromate in vadose zone and aquifer sediments in Hanford, Washington by Szecsody, Jim E., Truex, Mike J., Qafoku, Nikolla P., McKinley, James P., Ivarson, Kristine A., Di Pietro, Silvina

“…This study of vadose zone and aquifer sediments beneath a former dichromate spill site showed that the persistence of CrVI in the sediments and the large…”
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In situ reductive dissolution to remove Iodine-129 from aquifer sediments by Szecsody, Jim E., Emerson, Hilary P., Pearce, Carolyn I., Gartman, Brandy N., Resch, C. Tom, Di Pietro, Silvina A.

“…The use of an aqueous reductant (Na-dithionite) with pH buffer (K-carbonate, pH 12) was evaluated in this laboratory study as a potential remedial approach for…”
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Hybrid Sorbents for 129I Capture from Contaminated Groundwater by Cordova, Elsa A, Garayburu-Caruso, Vanessa, Pearce, Carolyn I, Cantrell, Kirk J, Morad, Joseph W, Gillispie, Elizabeth C, Riley, Brian J, Colon, Ferdinan Cintron, Levitskaia, Tatiana G, Saslow, Sarah A, Qafoku, Odeta, Resch, Charles T, Rigali, Mark J, Szecsody, Jim E, Heald, Steve M, Balasubramanian, Mahalingam, Meyers, Peter, Freedman, Vicky L

“…Radioiodine (129I) poses a risk to the environment due to its long half-life, toxicity, and mobility. It is found at the U.S. Department of Energy Hanford Site…”
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Influence of acidic and alkaline waste solution properties on uranium migration in subsurface sediments by Szecsody, Jim E., Truex, Mike J., Qafoku, Nikolla P., Wellman, Dawn M., Resch, Tom, Zhong, Lirong

“…This study shows that acidic and alkaline wastes co-disposed with uranium into subsurface sediments have significant impact on changes in uranium retardation,…”
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Influence of alkaline co-contaminants on technetium mobility in vadose zone sediments by Szecsody, Jim E., Jansik, Danielle P., McKinley, James P., Hess, Nancy J.

“…Pertechnetate was slowly reduced in a natural, untreated arid sediment under anaerobic conditions (0.02nmolg−1h−1), which could occur in low permeability zones…”
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Laboratory study of the influence of scCO2 injection on metals migration, precipitation, and microbial growth by Szecsody, Jim E., Zhong, Lirong, Vermeul, Vince R., McKinley, James P., Bowden, Mark, Williams, Mark D., Eisenhauer, Emalee

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Microbial Reduction of Fe(III) and Sorption/Precipitation of Fe(II) on Shewanella putrefaciens Strain CN32 by Liu, Chongxuan, Zachara, John M, Gorby, Yuri A, Szecsody, Jim E, Brown, Christopher F

“…The influence of Fe(II) on the dissimilatory bacterial reduction of an Fe(III) aqueous complex (Fe(III)−citrateaq) was investigated using Shewanella…”
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Characterizing Technetium in Subsurface Sediments for Contaminant Remediation by Pearce, Carolyn I, Serne, R. Jeffrey, Saslow, Sarah A, Um, Wooyong, Asmussen, Robert M, Miller, Micah D, Qafoku, Odeta, Snyder, Michelle M. V, Resch, Charles T, Johnson, Kayla C, Wang, Guohui, Heald, Steve M, Szecsody, Jim E, Zachara, John M, Qafoku, Nikolla P, Plymale, Andrew. E, Freedman, Vicky L

“…Technetium-99 (Tc) contamination remains a major environmental problem at legacy nuclear reprocessing sites, including the Hanford Site (Washington State,…”
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In Situ Chemical Reduction of Aquifer Sediments:  Enhancement of Reactive Iron Phases and TCE Dechlorination by Szecsody, Jim E, Fruchter, Jonathan S, Williams, Mark D, Vermeul, Vince R, Sklarew, Debbie

“…In situ chemical reduction of aquifer sediments is currently being used for chromate and TCE remediation by forming a permeable reactive barrier. The chemical…”
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Injectable Apatite Permeable Reactive Barrier for In Situ ⁹⁰Sr Immobilization by Vermeul, Vince R., Szecsody, Jim E., Fritz, Brad G., Williams, Mark D., Moore, Robert C., Fruchter, Jonathan S.

“…An injectable permeable reactive barrier (PRB) technology was developed to sequester ⁹⁰Sr in groundwater through the in situ formation of calcium‐phosphate…”
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Influence of Sediment Bioreduction and Reoxidation on Uranium Sorption by Liu, Chongxuan, Zachara, John M, Zhong, Lirong, Kukkadupa, Ravi, Szecsody, Jim E, Kennedy, Dave W

“…The influence of sediment bioreduction and reoxidation on U(VI) sorption was studied using Fe(III) oxide-containing saprolite from the U.S. Department of…”
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Abiotic transformation of high explosives by freshly precipitated iron minerals in aqueous FeII solutions by BOPARAI, Hardiljeet K, COMFORT, Steve D, SATAPANAJARU, Tunlawit, SZECSODY, Jim E, GROSSL, Paul R, SHEA, Patrick J

“…Zerovalent iron barriers have become a viable treatment for field-scale cleanup of various ground water contaminants. While contact with the iron surface is…”
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Abiotic/biotic degradation and mineralization of N-nitrosodimethylamine in aquifer sediments by Szecsody, Jim E., McKinley, James P., Breshears, Andrew T., Crocker, Fiona H.

“…The N‐nitrosodimethylamine (NDMA) degradation rate and mineralization rate were measured in two aquifer sediments that received treatments to create oxic,…”
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Optimal Design of an In Situ Fe(II) Barrier:  Transport Limited Reoxidation by Chilakapati, Ashok, Williams, Mark, Yabusaki, Steve, Cole, Charlie, Szecsody, Jim

“…Harmful contaminants such as Cr(VI) and TCE can be removed from groundwater by reactions with chemically reduced subsurface sediments. This paper studies the…”
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Silicon concentration and pH controls over competitive or simultaneous incorporation of iodate and chromate into calcium carbonate phases by Katsenovich, Yelena P., Gort, Rocio Trimino, Gudavalli, Ravi, Szecsody, Jim, Freedman, Vicky L., Qafoku, Nikolla P.

“…Co-precipitation of iodate and chromate with calcium carbonate (CaCO3) minerals is a potential approach that can significantly decrease their mobility in the…”
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Semiempirical Predictions of Chemical Degradation Reaction Mechanisms of CL-20 as Related to Molecular Structure by Qasim, Mohammad M., Furey, John, Fredrickson, Herbert L., Szecsody, Jim, Mcgrath, Chris, Bajpai, Rakesh

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Potential for U sequestration with select minerals and sediments via base treatment by Emerson, Hilary P., Di Pietro, Silvina, Katsenovich, Yelena, Szecsody, Jim

“…Temporary base treatment is a potential remediation technique for heavy metals through adsorption, precipitation, and co-precipitation with minerals…”
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