Actions for Abiotic Degradation Rates for Carbon Tetrachloride and Chloroform [electronic resource] : Progress in FY 2010

Email RIS file
Bookmark
Report an Issue

Abiotic Degradation Rates for Carbon Tetrachloride and Chloroform [electronic resource] : Progress in FY 2010

Published
Washington, D.C. : United States. Dept. of Energy, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
PDFN
Additional Creators
Pacific Northwest National Laboratory (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
This report documents the progress made through FY 2010 on a project initiated in FY 2006 to help address uncertainties related to the rates of hydrolysis in groundwater at the Hanford Site for carbon tetrachloride (CT) and chloroform (CF). The study also explores the possible effects of contact with minerals and sediment (i.e., heterogeneous hydrolysis) on these rates. The research was initiated to decrease the uncertainties in abiotic degradation rates of CT and chloroform CF associated with temperature and possible heterogeneous effects. After 2 years of data collection, the first evidence for heterogeneous effects was identified for hydrolysis of CT, and preliminary evidence for the effects of different mineral types on CF hydrolysis rates also was reported. The CT data showed no difference among mineral types, whereas significant differences were seen in the CF results, perhaps due to the fact that CF hydrolyzes by both neutral and base-catalyzed mechanisms whereas CT follows only the neutral hydrolysis path. In this report, we review the project objectives, organization, and technical approaches taken, update the status and results of the hydrolysis-rate experiments after 4 years of experimentation (i.e., through FY 2010), and provide a brief discussion of how these results add to scientific understanding of the behavior of the CT/CF plume at the Hanford Site.
Report Numbers
E 1.99:pnnl-20044
pnnl-20044
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/08/2010.
"pnnl-20044"
"16898"
"25679"
"25679a"
"3474"
"42490"
"4390"
"830403000"
Truex, Michael J.; Amonette, James E.; Russell, Colleen K.; Wietsma, Thomas W.; Qafoku, Odeta; Jeffers, Peter M.; Humphrys, Daniel R.
Funding Information
AC05-76RL01830
View MARC record | catkey: 14378890