Remediation of a chlorinated aromatic hydrocarbon in water by photoelectrocatalysis
Nissen, Silke, Alexander, Bruce D., Dawood, Ilyas, Tillotson, Martin, Wells, Richard P.K., Macphee, Donald E. and Killham, Kenneth (2009) Remediation of a chlorinated aromatic hydrocarbon in water by photoelectrocatalysis. Environmental Pollution, 157 (1). pp. 72-76. ISSN 0269-7491Full text not available from this repository.
Photoelectrocatalysis driven by visible light offers a new and potentially powerful technology for the remediation of water contaminated by organo-xenobiotics. In this study, the performance of a visible light-driven photoelectrocatalytic (PEC) batch reactor, applying a tungsten trioxide (WO3) photoelectrode, to degrade the model pollutant 2,4-dichlorophenol (2,4-DCP) was monitored both by toxicological assessment (biosensing) and chemical analysis. The bacterial biosensor used to assess the presence of toxicity of the parent molecule and its breakdown products was a multicopy plasmid lux-marked E. coli HB101 pUCD607. The bacterial biosensor traced the removal of 2,4-DCP, and in some case, its toxicity response suggests the identification of transient toxic intermediates. The loss of the parent molecule, 2,4-DCP determined by HPLC, corresponded to the recorded photocurrents. Photoelectrocatalysis offers considerable potential for the remediation of chlorinated hydrocarbons, and that the biosensor based toxicity results identified likely compatibility of this technology with conventional, biological wastewater treatment.
Visible light-driven photoelectrocatalysis has potential as a remediation technology in wastewater treatment
|Uncontrolled Keywords:||2,4-Dichlorophenol, photoelectrocatalysis, bacterial biosensor, wastewater, Tungsten trioxide, photocatalyst|
|Subjects:||Q Science > Q Science (General)|
Q Science > QD Chemistry
|School / Department / Research Groups:||School of Science|
School of Science > Department of Pharmaceutical, Chemical & Environmental Sciences
|Last Modified:||20 Jan 2012 11:26|
Actions (login required)