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H. Bao, B. Gu (2004)
Natural perchlorate has a unique oxygen isotope signature.Environmental science & technology, 38 19
J. Brandes, A. Devol (1997)
Isotopic fractionation of oxygen and nitrogen in coastal marine sedimentsGeochimica et Cosmochimica Acta, 61
R. Borden (2007)
Concurrent bioremediation of perchlorate and 1,1,1-trichloroethane in an emulsified oil barrier.Journal of contaminant hydrology, 94 1-2
T. Giblin, D. Herman, M. Deshusses, W. Frankenberger (2000)
Removal of Perchlorate in Ground Water with a Flow-Through BioreactorJournal of Environmental Quality, 29
Meckenstock R. U.
Stable isotope fractionation as a tool to monitor biodegradation in contaminated aquifers.
J. Cline, I. Kaplan (1975)
Isotopic fractionation of dissolved nitrate during denitrification in the eastern tropical north pacific oceanMarine Chemistry, 3
P. Brandhuber, S. Clark, Kevin Morley (2009)
A review of perchlorate occurrence in public drinking water systemsJournal ‐ American Water Works Association, 101
N. Sturchio, J. Böhlke, B. Gu, J. Horita, G. Brown, Abelardo Beloso, Leslie Patterson, Paul Hatzinger, W. Jackson, J. Batista (2006)
Stable Isotopic Composition of Chlorine and Oxygen in Synthetic and Natural Perchlorate
R. Borden, Christie Zawtocki, Tony Lieberman (2006)
Edible Oil Barriers for Treatment of Perchlorate Contaminated Groundwater
Yumiko Abe, D. Hunkeler (2006)
Does the Rayleigh equation apply to evaluate field isotope data in contaminant hydrogeology?Environmental science & technology, 40 5
P. Dasgupta, J. Dyke, A. Kirk, Warren Jackson (2006)
Perchlorate in the United States. Analysis of relative source contributions to the food chain.Environmental science & technology, 40 21
D. Sigman, K. Casciotti, M. Andréani, C. Barford, M. Galanter, J. Böhlke (2001)
A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater.Analytical chemistry, 73 17
G. Brown, B. Gu (2006)
The Chemistry of Perchlorate in the Environment
S. Chaudhuri, S. O'Connor, R. Gustavson, L. Achenbach, J. Coates (2002)
Environmental Factors That Control Microbial Perchlorate ReductionApplied and Environmental Microbiology, 68
K. Casciotti, D. Sigman, M. Hastings, J. Böhlke, A. Hilkert (2002)
Measurement of the oxygen isotopic composition of nitrate in seawater and freshwater using the denitrifier method.Analytical chemistry, 74 19
Richard Smith, B. Howes, J. Duff (1991)
Denitrification in nitrate-contaminated groundwater: Occurrence in steep vertical geochemical gradientsGeochimica et Cosmochimica Acta, 55
A. Mariotti, J. Germon, P. Hubert, P. Kaiser, R. Létolle, A. Tardieux, P. Tardieux (1981)
Experimental determination of nitrogen kinetic isotope fractionation: Some principles; illustration for the denitrification and nitrification processesPlant and Soil, 62
C. Tobias, J. Böhlke, J. Harvey (2007)
The oxygen‐18 isotope approach for measuring aquatic metabolism in high productivity watersLimnology and Oceanography, 52
J. Böhlke, N. Sturchio, B. Gu, J. Horita, G. Brown, W. Jackson, J. Batista, Paul Hatzinger (2005)
Perchlorate isotope forensics.Analytical chemistry, 77 23
E. Young, A. Galy, H. Nagahara (2002)
Kinetic and equilibrium mass-dependent isotope fractionation laws in nature and their geochemical and cosmochemical significanceGeochimica et Cosmochimica Acta, 66
M. Coleman, M. Ader, S. Chaudhuri, J. Coates (2003)
Microbial Isotopic Fractionation of Perchlorate ChlorineApplied and Environmental Microbiology, 69
E. Urbansky (2002)
Perchlorate as an environmental contaminantEnvironmental Science and Pollution Research, 9
J. Espenson (2000)
The Problem and Perversity of Perchlorate
J. Granger, D. Sigman, M. Lehmann, P. Tortell (2008)
Nitrogen and oxygen isotope fractionation during dissimilatory nitrate reduction by denitrifying bacteriaLimnology and Oceanography, 53
S. Rajagopalan, T. Anderson, L. Fahlquist, K. Rainwater, M. Ridley, W. Jackson (2006)
Widespread presence of naturally occurring perchlorate in high plains of Texas and New Mexico.Environmental science & technology, 40 10
J. Böhlke, S. Mroczkowski, T. Coplen (2003)
Oxygen isotopes in nitrate: new reference materials for 18O:17O:16O measurements and observations on nitrate-water equilibration.Rapid communications in mass spectrometry : RCM, 17 16
B. Gu, G. Brown, L. Maya, M. Lance, B. Moyer (2001)
Regeneration of perchlorate (ClO4-)-loaded anion exchange resins by a novel tetrachloroferrate (FeCl4-) displacement technique.Environmental science & technology, 35 16
J. Böttcher, O. Strebel, S. Voerkelius, H. Schmidt (1990)
Using isotope fractionation of nitrate-nitrogen and nitrate-oxygen for evaluation of microbial denitrification in a sandy aquiferJournal of Hydrology, 114
D. Sigman, J. Granger, P. DiFiore, Moritz Lehmann, R. Ho, G. Cane, A. Geen (2005)
Coupled nitrogen and oxygen isotope measurements of nitrate along the eastern North Pacific marginGlobal Biogeochemical Cycles, 19
G. Ericksen (1983)
The Chilean Nitrate DepositsAmerican Scientist, 71
R. Meckenstock, B. Morasch, C. Griebler, H. Richnow (2004)
Stable isotope fractionation analysis as a tool to monitor biodegradation in contaminated acquifers.Journal of contaminant hydrology, 75 3-4
Y. Farhan, Paul Hatzinger (2009)
Modeling the Biodegradation Kinetics of Perchlorate in the Presence of Oxygen and Nitrate as Competing Electron AcceptorsBioremediation Journal, 13
P. Brandhuber, S. Clark (2005)
PERCHLORATE OCCURRENCE MAPPING
N. Sturchio, J. Böhlke, Abelardo Beloso, S. Streger, L. Heraty, Paul Hatzinger (2007)
Oxygen and chlorine isotopic fractionation during perchlorate biodegradation: laboratory results and implications for forensics and natural attenuation studies.Environmental science & technology, 41 8
Paul Hatzinger (2005)
Perchlorate biodegradation for water treatment.Environmental science & technology, 39 11
J. Coates, L. Achenbach (2004)
Microbial perchlorate reduction: rocket-fuelled metabolismNature Reviews Microbiology, 2
M. Lehmann, P. Reichert, S. Bernasconi, A. Barbieri, J. Mckenzie (2003)
Modelling nitrogen and oxygen isotope fractionation during denitrification in a lacustrine redox-transition zoneGeochimica et Cosmochimica Acta, 67
N. Sturchio, Paul Hatzinger, Martha Arkins, C-W Suh, L. Heraty (2003)
Chlorine isotope fractionation during microbial reduction of perchlorate.Environmental science & technology, 37 17
B. Morasch, H. Richnow, B. Schink, A. Vieth, R. Meckenstock (2002)
Carbon and Hydrogen Stable Isotope Fractionation during Aerobic Bacterial Degradation of Aromatic HydrocarbonsApplied and Environmental Microbiology, 68
B. Gu, J. Tio, Wei Wang, Yee-Kyoung Ku, S. Dai (2004)
Raman Spectroscopic Detection for Perchlorate at Low ConcentrationsApplied Spectroscopy, 58
C. Barford, J. Montoya, M. Altabet, R. Mitchell (1999)
Steady-State Nitrogen Isotope Effects of N2 and N2O Production in Paracoccus denitrificansApplied and Environmental Microbiology, 65
Kawanishi Takuya, Hayashi Yoshishige, Kmou Nobuharu, Yoneyama Tadakatsu, Ozaki Yasuo (1993)
Dispersion effect on the apparent nitrogen isotope fractionation factor associated with denitrification in soil; Evaluation by a mathematical modelSoil Biology & Biochemistry, 25
A. Mariotti, A. Landreau, Béatrice Simon (1988)
15N isotope biogeochemistry and natural denitrification process in groundwater: Application to the chalk aquifer of northern FranceGeochimica et Cosmochimica Acta, 52
J. Granger, D. Sigman, J. Needoba, P. Harrison (2004)
Coupled nitrogen and oxygen isotope fractionation of nitrate during assimilation by cultures of marine phytoplanktonLimnology and Oceanography, 49
R. Borden (2007)
Effective distribution of emulsified edible oil for enhanced anaerobic bioremediation.Journal of contaminant hydrology, 94 1-2
Environmental context. Perchlorate (ClO 4 – ) and nitrate (NO 3 – ) are common co-contaminants in groundwater, with both natural and anthropogenic sources. Each of these compounds is biodegradable, so in situ enhanced bioremediation is one alternative for treating them in groundwater. Because bacteria typically fractionate isotopes during biodegradation, stable isotope analysis is increasingly used to distinguish this process from transport or mixing-related decreases in contaminant concentrations. However, for this technique to be useful in the field to monitor bioremediation progress, isotope fractionation must be quantified under relevant environmental conditions. In the present study, we quantify the apparent in situ fractionation effects for stable isotopes in ClO 4 – (Cl and O) and NO 3 – (N and O) resulting from biodegradation in an aquifer. Abstract. An in situ experiment was performed in a shallow alluvial aquifer in Maryland to quantify the fractionation of stable isotopes in perchlorate (Cl and O) and nitrate (N and O) during biodegradation. An emulsified soybean oil substrate that was previously injected into this aquifer provided the electron donor necessary for biological perchlorate reduction and denitrification. During the field experiment, groundwater extracted from an upgradient well was pumped into an injection well located within the in situ oil barrier, and then groundwater samples were withdrawn for the next 30 h. After correction for dilution (using Br – as a conservative tracer of the injectate), perchlorate concentrations decreased by 78% and nitrate concentrations decreased by 82% during the initial 8.6 h after the injection. The observed ratio of fractionation effects of O and Cl isotopes in perchlorate (ϵ 18 O/ϵ 37 Cl) was 2.6, which is similar to that observed in the laboratory using pure cultures (2.5). Denitrification by indigenous bacteria fractionated O and N isotopes in nitrate at a ratio of ~0.8 (ϵ 18 O/ϵ 15 N), which is within the range of values reported previously for denitrification. However, the magnitudes of the individual apparent in situ isotope fractionation effects for perchlorate and nitrate were appreciably smaller than those reported in homogeneous closed systems (0.2 to 0.6 times), even after adjustment for dilution. These results indicate that (1) isotope fractionation factor ratios (ϵ 18 O/ϵ 37 Cl, ϵ 18 O/ϵ 15 N) derived from homogeneous laboratory systems (e.g. pure culture studies) can be used qualitatively to confirm the occurrence of in situ biodegradation of both perchlorate and nitrate, but (2) the magnitudes of the individual apparent ϵ values cannot be used quantitatively to estimate the in situ extent of biodegradation of either anion.
Environmental Chemistry – CSIRO Publishing
Published: Mar 3, 2009
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