Biocatalytic dechlorination of lindane by nano-scale particles of Pd(0) deposited on Shewanella oneidensis

Mertens, Birgit, Blothe, Christian, Windey, Kim, De Windt, Wim and Verstraete, Willy (2007) Biocatalytic dechlorination of lindane by nano-scale particles of Pd(0) deposited on Shewanella oneidensis. Chemosphere, 66 1: 99-105. doi:10.1016/j.chemosphere.2006.05.018


Author Mertens, Birgit
Blothe, Christian
Windey, Kim
De Windt, Wim
Verstraete, Willy
Title Biocatalytic dechlorination of lindane by nano-scale particles of Pd(0) deposited on Shewanella oneidensis
Formatted title
Biocatalytic dechlorination of lindane by nano-scale particles
of Pd(0) deposited on Shewanella oneidensis
Journal name Chemosphere   Check publisher's open access policy
ISSN 0045-6535
Publication date 2007
Sub-type Article (original research)
DOI 10.1016/j.chemosphere.2006.05.018
Volume 66
Issue 1
Start page 99
End page 105
Total pages 7
Place of publication Oxford
Publisher Pergamon Press/Elsevier
Language eng
Subject 100203 Bioremediation
Abstract A new approach for the removal of the pesticide lindane (c-hexachlorocyclohexane or c-HCH) makes use of catalytic reduction of HCH to benzene over a metal catalyst, namely Pd(0). Since specific surface area plays an important role in reactivity of catalysts, this study investigated the use of bioPd(0), i.e. nano-scale Pd(0) particles precipitated on the biomass of Shewanella oneidensis, for the removal of lindane. It was demonstrated that bioPd(0) has catalytic activity towards dechlorination of c-HCH, with the addition of formate as electron donor, and that dechlorination with bioPd(0) was more efficient than with commercial powdered Pd(0). The biodegradable compound benzene was formed as reaction product and other HCH isomers could also be dechlorinated. Subsequently bioPd(0) was implemented in a membrane reactor technology for the treatment of c-HCH polluted water. In a fed-batch process configuration with formate as electron donor, a removal percentage of 98% of c-HCH saturated water (10 mg l1) was achieved within 24 h. The measured chloride mass balance approached the theoretical value. The results of this work showed that a complete, efficient and fast removal of lindane was achieved by biocatalysis with bioPd(0).
Keyword γ-hexachlorocyclohexane
BioPd(0)
Palladium
Reductive dechlorination
Biocatalysis
Membrane reactor
Q-Index Code C1
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Advanced Water Management Centre Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 41 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 40 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Mon, 16 Feb 2009, 09:45:11 EST by Alexandra Cooney on behalf of Library Corporate Services