Results 201 to 210 of about 81,585 (259)

Molecular Structure and Sulfur Content Affect Reductive Dechlorination of Chlorinated Ethenes by Sulfidized Nanoscale Zerovalent Iron.

Environmental Science and Technology, 2022
Sulfidized nanoscale zerovalent iron (SNZVI) with desirable properties and reactivity has recently emerged as a promising groundwater remediation agent.
Yalan Mo, Jiang Xu, Lizhong Zhu
semanticscholar   +1 more source

Anaerobic Microbial Reductive Dehalogenation of Chlorinated Ethenes

Bioremediation Journal, 1999
The current knowledge on microbial reductive dechlorination of chlorinated ethenes (CEs) and its application are discussed.
Middeldorp, P.J.M., Luijten, M.L.G.C., van de Pas, B.A., van Eekert, M.H.A., Kengen, S.W.M., Schraa, G., Stams, A.J.M.   +6 more
openaire   +2 more sources

Partitioning of dissolved chlorinated ethenes into vegetable oil

Water Research, 2005
Food-grade soybean oil (SoyOil) has been used to enhance in situ anaerobic bioremediation at sites contaminated with chlorinated ethenes (CEs). The abiotic interactions of SoyOil with the CEs may be significant and need to be better understood. The oil: water partition coefficients (Kp) of dissolved CEs into SoyOil were measured in batch tests and ...
Patricia, Pfeiffer, Angela R, Bielefeldt, Tissa, Illangasekare, Bruce, Henry   +3 more
openaire   +2 more sources

Chlorine Isotope Fractionation during Reductive Dechlorination of Chlorinated Ethenes by Anaerobic Bacteria

Environmental Science & Technology, 2002
Chlorine isotope fractionation during reductive dechlorination of trichloroethene (TCE) and tetrachloroethene (PCE) to cis-1,2-dichloroethene (cDCE) by anaerobic bacteria was investigated. The changes in the 37Cl/35Cl ratio observed during the one-step reaction (TCE to cDCE) can be explained by the regioselective elimination of chlorine accompanied by ...
Masahiko, Numata, Noboru, Nakamura, Hiromoto, Koshikawa, Yutaka, Terashima   +3 more
openaire   +2 more sources

Bioaugmentation for chlorinated ethene detoxification: Bioaugmentation and molecular diagnostics in the bioremediation of chlorinated ethene-contaminated sites

Industrial Biotechnology, 2005
During the last several years, the nascent field of environmental biotechnology has advanced through the addition of specialized contaminant- degrading microorganisms that facilitate bioremediation. This process is termed bioaugmentation. Coupled with bioaugmentation has been the emergence of targeted molecular diagnostics to better engineer and manage
Kirsti M. Ritalahti, Frank E. Löffler, Erin E. Rasch, Stephen S. Koenigsberg   +3 more
openaire   +1 more source

Quantification of Degradation Rate Constants in Aquifer Materials Using Carbon‐14 Chlorinated Ethenes

Groundwater Monitoring & Remediation
Among the most challenging sites to remediate are those where the groundwater is contaminated with large, dilute plumes of tetrachloroethene (PCE), trichloroethene (TCE), cis‐1,2‐dichloroethene (cDCE), and vinyl chloride (VC).
David L. Freedman, Anangelica Rivera‐Cruz, O. Groshans, John T. Wilson   +3 more
semanticscholar   +1 more source

Biodegradation of Chlorinated Ethenes

2010
Biodegradation of chlorinated ethenes by naturally occurring or artificially enhanced processes is an important component of current site remediation strategies. At this writing, several microbial mechanisms for chlorinated ethene transformation and degradation have been identified.
Paul M. Bradley, Francis H. Chapelle
openaire   +1 more source

Using a 14C‐Assay to Assess Natural Abiotic Degradation of Chlorinated Ethenes in Aquifer Sediments

Groundwater Monitoring & Remediation
Chlorinated ethenes are common contaminants in aerobic water‐supply aquifers, and they can form large dilute plumes. Often, concentrations attenuate naturally along the flow path, and the bulk first‐order rate constant for attenuation with travel time in
John T. Wilson, Barbara Wilson, Mark Ferrey, David L. Freedman, Anangelica Rivera Cruz, O. Groshans, David T. Adamson, Charles J. Newell   +7 more
semanticscholar   +1 more source

Chlorinated Ethenes from Groundwater in Tree Trunks

Environmental Science & Technology, 1998
The purpose of this investigation was to determine whether tree-core analysis could be used to delineate shallow groundwater contamination by chlorinated ethenes. Analysis of tree cores from bald cypress [Taxodium distichum (L.) Rich], tupelo (Nyssa aquatica L.), sweet gum (Liquidambar stryaciflua L.), oak (Quercus spp.), sycamore (Platanus ...
Don A. Vroblesky, Christopher T. Nietch, James T. Morris   +2 more
openaire   +1 more source

Effects of surfactants on the dechlorination of chlorinated ethenes

Environmental Toxicology and Chemistry, 2003
Abstract The influence of surfactants on a perchloroethene (PCE) dechlorinating mixed culture was investigated in laboratory experiments. Surfactants (Steol CS-330, Aerosol MA 80-I, alpha olefin sulfonate 14 to 16, Neodol 25-7, Tween 80, alkyl polyglycoside, C16TAB [trimethylammonium bromide], and sodium dodecyl sulfate) were evaluated ...
Travis, McGuire, Joseph B, Hughes
openaire   +2 more sources