Stable isotope investigations of chlorinated aliphatic hydrocarbons [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1999.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 7 pages : digital, PDF file
Additional Creators:: Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access:

Free-to-read Unrestricted online access

Summary:

Stable isotope ratio measurements for carbon (C) and chlorine (Cl) can be used to elucidate the processes affecting transformation and transportation of chlorinated aliphatic hydrocarbons (CAHs) in the environment. Methods recently developed in our laboratory for isotopic analysis of CAHs have been applied to laboratory measurements of the kinetic isotope effects associated with aerobic degradation of dichloromethane (DCM) and with both anaerobic and aerobic cometabolic degradation of trichlomethene (TCE) in batch and column microbial cultures. These experimental determinations of fractionation factors are crucial for understanding the behavior of CAHs in complex natural systems, where the extent of biotransformation can be masked by dispersion and volatilization. We have also performed laboratory investigations of kinetic isotope effects accompanying evaporation of CAHs, as well as field investigations of natural attenuation and in situ remediation of CAHs in a number of contaminated shallow aquifers at sites operated by the federal government and the private sector.

Report Numbers:

E 1.99:anl/er/cp-99091
anl/er/cp-99091

Subject(s):

Environmental Sciences

Other Subject(s):

Note:

Published through SciTech Connect.
06/01/1999.
"anl/er/cp-99091"
The Second International Symposium on Integrated Technical Approaches to Site Characterization, Chicago, IL (US), 06/07/1999--06/09/1999.
Sturchio, N. C.; Holt, B. D.; Huang, L.; Abrajano, T.; Heraty, L. J.

Funding Information:

W-31109-ENG-38

View MARC record | catkey: 14136912