Anaerobic biodegradation of DDT residues (DDT, DDD, and DDE) in estuarine sediment
Huang, HJ; Liu, SM; Kuo, CE
| HERO ID | 1961255 |
|---|---|
| In Press | No |
| Year | 2001 |
| Title | Anaerobic biodegradation of DDT residues (DDT, DDD, and DDE) in estuarine sediment |
| Authors | Huang, HJ; Liu, SM; Kuo, CE |
| Journal | Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes |
| Volume | 36 |
| Issue | 3 |
| Page Numbers | 273-288 |
| Abstract | The potential for anaerobic biodegradation of 1,1,1-trichloro-2,2-bischlorophenylethane (DDT), 1,1-dichloro-2,2,-bischlorophenylethane (DDD), and dichlorodiphenylchloroethylene (DDE) in anoxic sediment slurries collected from the Keelung River was investigated in this study. o,p'- and p,p'-DDT were dechlorinated to o,p'- and p,p'-DDD, respectively, and then transformed to other compound(s). 1-Chloro-2,2-bis (p-chlorophenyl) ethylene (DDMU) and trace amount of dichlorobenzophenone (DBP) were detected in sediment slurries amended with p,p'-DDT or p,p'-DDD. DDMU was also detected in sediment slurries amended with p,p'-DDE. The relative transformation rates for both o,p'- and p,p'-isomers of DDT, DDD, and DDE were DDT>DDD>DDE. Re-addition of DDT, DDD, or DDE to the sediment slurries after initial removal enhanced the respective dechlorination rates. The transformation rates of the p,p'-isomers of both DDT and DDD were faster than those of the respective o,p'-isomers. p,p'-DDT dechlorination in the p,p'-DDT-adapted sediment slurries were inhibited by the addition of molybdate, or molybdate plus sulfate, but not inhibited by the addition of sulfate. Addition of bromoethane-sulfonic acid (BESA) slightly inhibited p,p'-DDT dechlorination. Non-adapted sediment slurries lost the ability to dechlorinate pentachlorophenol during adaptation to p,p'-DDT. p,p'-DDD was the major transformation product of p, p'-DDT in 3,4,4',5-tetrachlorobiphenyl-adapted sediment slurries, which suggested that the microbial community in the 3,4,4',5-CB-adapted sediment was unable to remove chlorine from the aromatic rings of p,p'-DDT. |
| Doi | 10.1081/PFC-100103569 |
| Pmid | 11411851 |
| Wosid | WOS:000170042100003 |
| Url | https://search.proquest.com/docview/49347108?accountid=171501 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | biodegradation; DDT; DDD; DDE; estuarine sediment |