Main Title |
Sequential Reductive Dehalogenation of Chloroanilines by Microorganisms from a Methanogenic Aquifer. |
Author |
Kuhn, E. P. ;
Suflita, J. M. ;
|
CORP Author |
Oklahoma Univ., Norman. Dept. of Botany and Microbiology.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
Publisher |
c1989 |
Year Published |
1989 |
Report Number |
EPA/600/J-89/103; |
Stock Number |
PB90-117219 |
Additional Subjects |
Water pollution ;
Microorganisms ;
Aquifers ;
Soil microbiology ;
Waste disposal ;
Pesticides ;
Ground water ;
Surface waters ;
Chromatographic analysis ;
Mass spectroscopy ;
Aerobic processes ;
Reprints ;
Land pollution ;
Aniline/chloro ;
Methane bacteria ;
Dehalogenation ;
Clean-up operations ;
Chemical reaction mechanisms
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB90-117219 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
7p |
Abstract |
Chloroaniline-based compounds are widely used chemicals and important contaminants of aquatic and terrestrial environments. The authors have found that chloroanilines can be biologically dehalogenated in polluted aquifers when methanogenic, but not sulfate-reducing conditions prevail. The halogens are replaced by protons in a series of reductive steps catalyzed by microorganisms. The sequential release of halogens from the para and ortho position of 2,3,4,5-tetrachloroaniline (2,3,4,5-tetraCA) resulted in the formation of 2,3,5-trichloroaniline (2,3,5-triCA) and eventually 3,5-dichloroaniline (3,5-diCA). Similarly, when 3,4-diCA was used as a parent substrate, it was transformed to 3-chloro-aniline (3-CA). Metabolites and end products were identified by their chromatographic mobility and their mass spectral fragmentation pattern. The reaction helps suggest novel bioremediation approaches for aquifers and other environments contaminated with these chemicals. (Copyright (c) 1989 American Chemical Society.) |
Supplementary Notes |
Pub. in Environmental Science and Technology, v23 n7 p848-852 Jul 89. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Sequential Reductive Dehalogenation of Chloroanilines by Microorganisms from a Methanogenic Aquifer. |
Category Codes |
68D; 68C; 57K; 99A; 99F |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/15 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
936217282 |
Origin |
NTIS |
Type |
CAT |