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| Titel: |
Anaerobic microbial dechlorination: An approach to on-site treatment of toxaphene-contaminated soil |
| Auteur: |
Mirsatari, S. G. McChesney, M. H. Craigmill, A. C. Winterlin, W. L. Seiber, J. N. |
| Verschenen in: |
Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes |
| Paginering: | Jaargang 22 (1987) nr. 6 pagina's 663-690 |
| Jaar: |
1987 |
| Inhoud: |
Enhanced microbial degradation of toxaphene by natural microorganisms occurred in soil and sediment amended with organic matter kept under anaerobic (flooded) conditions. Laboratory experiments yielded a dissipation half-life of approximately 3 and 1 week for soil and sediment, respectively, containing 10 ppm of technical toxaphene and a 1% alfalfa meal amendment. Dissipation was accompanied by an increase in early eluting gas chromatographic peaks and a decrease in later eluting peaks, indicating that dechlorination had occurred. Enhanced anaerobic dissipation also took place in soil containing 500 ppm of toxaphene, although at a lesser rate than at 10 ppm, and when cotton gin waste was used as amendment in place of alfalfa meal. Sediment in a toxaphene-contaminated pesticide waste disposal ditch was amended with 10% steer manure and flooded to ascertain field utility of the technique for on-site decontamination. Toxaphene residues were reduced from 63 to 23 ppm in 120 days, and some degradation activity still occurred up to 8 months after this single treatment. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 6 gevonden artikelen
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