Main Title |
Degration of Selected Halogenated Ethanes in Anoxic Sediment-Water Systems. |
Author |
Jafvert, C. T. ;
Wolfe, N. L. ;
|
CORP Author |
Environmental Research Lab., Athens, GA. |
Year Published |
1987 |
Report Number |
EPA/600/J-87/273; |
Stock Number |
PB88-180344 |
Additional Subjects |
Reprints ;
Ethanes ;
Degradation ;
Halogenated ethanes ;
Anoxic sediment water
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB88-180344 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
13p |
Abstract |
The degradation of selected halogenated ethanes was studied in anoxic sediment-water suspensions at 1 to 20% sediment concentrations. Batch kinetic experiments were used to quantify decay. Eh measurements of all suspensions were below -100mV (vs SHE), indicating reduced environmental conditions. Hexachloroethane (HCA), 1,1,2,2-tetrachloroethane (TTCA), 1,2-diiodoethane (DIA) and 1,2-dibromoethane (DBA) were degraded within minutes to days, but 1,2-dichloroethane (DCA) remained in the system through 35 d, at which point the study was ended. The major route of transformation of these compounds in the system was vicinal dehalogenation. Rates of disappearance followed pseudo-first-order kinetics at low reactant concentrations and high sediment concentration. |
Supplementary Notes |
Pub. in Environmental Toxicology and Chemistry, v6 n11 p827-837 Nov 87. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Degration of Selected Halogenated Ethanes in Anoxic Sediment-Water Systems. |
PUB Date Free Form |
1987 |
Category Codes |
57Y; 68D |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
814618525 |
Origin |
NTIS |
Type |
CAT |