| Main Title |
Dechlorination of pentachlorophenol 1,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid in anaerobic freshwater sediments / |
| Author |
Bryant, Frank Osborn, ;
Rogers, J. E.
|
| Other Authors |
|
| CORP Author |
Environmental Research Lab., Athens, GA. ;Technology Applications, Inc., Athens, GA. |
| Publisher |
U.S. Envrironmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, |
| Year Published |
1990 |
| Report Number |
EPA/600/M-90/006 |
| Stock Number |
PB90-181306 |
| Additional Subjects |
Biodeterioration ;
Chlorination ;
Water reclamation ;
Sediments ;
Fresh water ;
Graphs(Charts) ;
Chemical water pollutants ;
Dichlorophenoxyacetic acid ;
Trichlorophenoxyacetic acid ;
Pentachlorophenol ;
Biotransformation
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-181306 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16 pages ; 28 cm |
| Abstract |
Pentachlorophenol, 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid were transformed by microbial reductive dechlorination in freshwater, anaerobic sediments from such diverse locations as Georgia, Florida, New York and the Soviet Union. The reductive dechlorination process involves removal of a chlorine and replacement with a hydrogen. Sediments previously adapted to dechlorinate dichlorophenols were found to mediate dechlorination at much faster rates than unadapted sediments. Pentachlorophenol dechlorination in dichlorophenol-adapted sediments generated tetra-, tri-, di-, and monochlorophenol and phenol. Concentrations of pentachlorophenol, 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid up to 100 ppm were dechlorinated by adapted sediments. Reductive dechlorination of PCP, 2,4-D, and 2,4,5-T was region specific for chlorine removal as determined by the dichlorophenol isomer used to adapt the sediment. Sediment adapted to 2,4-dichlorophenol preferentially removed chlorines from the ortho position; whereas sediment adapted to 3,4-dichlorophenol preferentially removed chlorines from the para position. |
| Notes |
Includes bibliographical references. "February 1990." Microfiche. |
| Place Published |
Athens, GA : |
| Supplementary Notes |
Prepared in cooperation with Technology Applications, Inc., Athens, GA. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Development. ; Environmental Research Laboratory. ; Technology Applications Inc. |
| PUB Date Free Form |
1990. |
| NTIS Prices |
PC A03/MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20001127141557 |
| Language |
eng |
| Origin |
NTIS |
| Type |
MERGE |
| OCLC Rec Leader |
01207nam 2200277Ka 45020 |
