Document Detail


Synergistic effect of the combination of immobilized TiO(2), UVA and ozone on the decomposition of dichloroacetic acid.
MedLine Citation:
PMID:  22506699     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The performance of a heterogeneous photocatalytic ozonation system (TiO(2)/UVA/O(3)) was evaluated on the degradation and mineralization of dichloroacetic acid as a contaminant in aqueous solutions by means of a planar reactor. The commercial product "Pilkington Active(TM) glass" was used as the immobilized TiO(2) photocatalyst and it was irradiated by near UV light in this study. The synergistic interaction between ozone and the photoactivated TiO(2) surface was discussed and highlighted. Furthermore, the influences of initial concentration and temperature on the degradation rate of dichloroacetic acid and the ozone consumption level during the oxidation process were investigated. The concentrations of dichloroacetic acid and chloride anions produced during degradation were measured using ion chromatography. The mineralization of dichloroacetic acid was evaluated by Total Organic Carbon (TOC) measurements. The degradation of dichloroacetic acid by photocatalytic ozonation showed good agreement with the kinetics of first-order reactions with respect to dichloroacetic acid.
Authors:
Mohammad Mehrjouei; Siegfried Müller; Detlev Möller
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering     Volume:  47     ISSN:  1532-4117     ISO Abbreviation:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-04-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812551     Medline TA:  J Environ Sci Health A Tox Hazard Subst Environ Eng     Country:  England    
Other Details:
Languages:  eng     Pagination:  1073-81     Citation Subset:  IM    
Affiliation:
a Institute for Soil, Water and Air, Faculty of Environmental Science and Process Engineering , Brandenburg University of Technology (BTU Cottbus) , Germany.
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