Title

Dechlorination Of Polychlorinated Biphenyls Using Magnesium And Acidified Alcohols

Keywords

Acetic acid; Dechlorination; Ethanol; Magnesium; Polychlorinated biphenyl

Abstract

Polychlorinated biphenyls (PCBs) were widely used in industry until their regulation in the 1970s. However, due to their inherent stability, they are still a widespread environmental contaminant. A novel method of degradation of PCBs (via hydrodehalogenation) has been observed using magnesium powder, a carboxylic acid, and alcohol solvents and is described in this paper. The rates of degradation were determined while varying the type of acid (formic, acetic, propionic, butyric, valeric, benzoic, ascorbic, and phosphoric), the amount of magnesium from 0.05 to 0.25. g, the amount of acetic acid from 0.5 to 50 μL and the concentration of PCB-151 from 0.1 to 50 μg/mL, as well as the alcohol solvent (methanol, ethanol, propanol, butanol, octanol, and decanol). The results of these studies indicate that the most rapid PCB dechlorination is achieved using a matrix consisting of at least 0.02. g. Mg/mL ethanol, and 10 μL acetic acid/mL ethanol in which case 50. ng/μL of PCB-151 is dechlorinated in approximately 40. min. © 2011 Elsevier B.V.

Publication Date

3-15-2011

Publication Title

Journal of Hazardous Materials

Volume

187

Issue

1-3

Number of Pages

235-240

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jhazmat.2011.01.006

Socpus ID

79951858494 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79951858494

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