Main Title |
Sequential Dehalogenation of Chlorinated Ethenes. |
Author |
Barrio-Lage, G. ;
Parsons, F. Z. ;
Nassar, R. S. ;
Lorenzo, P. A. ;
|
CORP Author |
Florida International Univ., Miami. Drinking Water Research Center.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
Year Published |
1986 |
Report Number |
EPA-R-809994; EPA/600/J-86/030; |
Stock Number |
PB86-190188 |
Additional Subjects |
Chemical reactions ;
Chromatographic analysis ;
Reduction(Chemistry) ;
Ground water ;
Vinyl chloride ;
Reprints ;
Ethylene/dichloro ;
Microcosms ;
Dehalogenation ;
Chemical reaction kinetics
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-190188 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
6p |
Abstract |
Reductive dehalogenation of tetra- and tri-chloroethene to cis- and trans-1,2-dichloroethene in microcoms simulating ground water environment has previously been demonstrated. In the study, anoxic microcosms containing organic sediment and water were spiked to contain 5 mg/L of one of the following compounds: 1,1-dichloroethene (1,1-DCE), cis-1,2-dichloroethene (CIS), or trans-1,2-dichloroethene (TRANS). After incubation in the dark at 25 deg C for up to six months, contents were analyzed by gas chromatography, and verified by GC/MS in an attempt to identify sequential steps in the transformation process. Vinyl chloride (VC) was produced after 1 to 2 weeks of incubation in all spiked microcosms, but none was observed in sterile and unspiked controls. Chloroethane (CE) was produced only in microcosms spiked with CIS, indicating isomer specificity and the occurrence of mechanisms other than reductive dechlorination. Kinetics parameters associated with the microbial dehalogenation of 1,1-DCE, CIS, and TRANS were calculated. |
Supplementary Notes |
Pub. in Environmental Science and Technology, v20 n1 p96-99 Jan 86. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Sequential Dehalogenation of Chlorinated Ethenes. |
PUB Date Free Form |
c1986 |
Category Codes |
7C; 7D; 99D; 99F; 68D |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/15 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
621321363 |
Origin |
NTIS |
Type |
CAT |