Effect of metal and glycol on mechanochemical dechlorination of polychlorinated biphenyls (PCBs)

This paper assesses the potential of mechanochemical method with fine metal powder, glycol and alkali for polychlorinated biphenyls (PCBs) removal from waste insulating oil. The effects of relevant parameters, such as kinds of chemicals, rate and time of milling were examined. After each run, the to...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2008-08, Vol.73 (1), p.138-141
Main Authors: Nah, In Wook, Hwang, Kyung-Yub, Shul, Yong-Gun
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Hydrogen donor
Mechanochemical dechlorination
Metal
Metals - chemistry
Other industrial wastes. Sewage sludge
PCBs removal
Pollution
Polychlorinated Biphenyls - chemistry
Polychlorinated Biphenyls - isolation & purification
Polyethylene Glycols - chemistry
Time Factors
Wastes
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Summary:This paper assesses the potential of mechanochemical method with fine metal powder, glycol and alkali for polychlorinated biphenyls (PCBs) removal from waste insulating oil. The effects of relevant parameters, such as kinds of chemicals, rate and time of milling were examined. After each run, the total PCBs content in waste insulating oil was measured. Polyethylene glycol 200, long chain-glycol was more effective than triethylene glycol and ethylene glycol, short chain-glycol as hydrogen donor in mechanochemical dechlorination of PCBs. A maximum of 99.9% PCBs removal (below 2 ppm) and 94% total chlorine removal were achieved with the mechanochemical process for 2 h.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2008.04.051