Title

Dechlorination Comparison Of Mono-Substituted Pcbs With Mg/Pd In Different Solvent Systems

Keywords

Bimetallic; Degradation; Environmental; Polychlorinated biphenyl; Solvent specificity; Zero-valent metal

Abstract

It is widely recognized that polychlorinated biphenyls (PCBs) are a dangerous environmental pollutant. Even though the use and production of PCBs have been restricted, heavy industrial use has made them a wide-spread environmental issue today. Dehalogenation using zero-valent metals has been a promising avenue of research for the remediation of chlorinated compounds and other contaminants that are present in the environment. However, zero-valent metals by themselves have shown little capability of dechlorinating polychlorinated biphenyls (PCBs). Mechanically alloying the metal with a catalyst, such as palladium, creates a bimetallic system capable of dechlorinating PCBs very rapidly to biphenyl. This study primarily aims to evaluate the effects of solvent specificity on the kinetics of mono-substituted PCBs, in an attempt to determine the mechanism of degradation. Rate constants and final byproducts were determined for the contaminant systems in both water and methanol, and significant differences in the relative rates of reaction were observed between the two solvents. © 2008 Elsevier Ltd. All rights reserved.

Publication Date

10-1-2008

Publication Title

Chemosphere

Volume

73

Issue

6

Number of Pages

896-900

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.chemosphere.2008.07.006

Socpus ID

51449122051 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/51449122051

This document is currently not available here.

Share

COinS