Factors influencing the development of a biostimulant for the in-situ anaerobic dechlorination of polychlorinated biphenyls in Fox River, Wisconsin sediments
- Radian Corp., Milwaukee, WI (United States)
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Civil and Environmental Engineering
Polychlorinated biphenyl (PCB) contaminated sediments were collected from the Fox River, Wisconsin, and analyzed for the possible occurrence of reductive dechlorination. Evidence of in-situ dechlorination was observed. However, the extent of this in-situ dechlorination was less than that typically reported in the literature, suggesting that stimulation of further dechlorination was possible. The use of nutrients and surfactants was explored for stimulating additional dechlorination. The nutrient amendment reported here was found to be inhibitory. Surfactants had varying effect, but non significantly improved dechlorination over control treatments. The most significant factors were observed to be the initial extent of dechlorination and PCB concentration. Additional dechlorination was most likely to be observed in sediments with higher PCB concentration and less initial dechlorination. All sediments converged on a common dechlorination level regardless of the initial state of the sediments.
- OSTI ID:
- 419579
- Report Number(s):
- CONF-9406413-; ISBN 0-8031-2028-1; TRN: IM9706%%123
- Resource Relation:
- Conference: Symposium on dredging, remediation, and containment of contaminated sediments. ASTM Special Technical Publication. Vol. 129, Montreal (Canada), 23-24 Jun 1994; Other Information: PBD: 1995; Related Information: Is Part Of Dredging, remediation, and containment of contaminated sediments; Demars, K.R.; Richardson, G.N.; Yong, R.N.; Chaney, R.C. [eds.]; PB: 343 p.; ASTM special technical publication 1293
- Country of Publication:
- United States
- Language:
- English
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