A commercial-scale photocatalytic oxidation system developed by Matrix Photocatalytic Inc. (Matrix) was evaluated to generate performance and cost data for the treatment of groundwater contaminated with volatile organic compounds (VOCs). High percent removals (up to 99.9%) were observed for aromatic and unsaturated VOCs. However, saturated VOC removals were insignificant. Oxidant addition to the contaminated groundwater significantly improved the treatment system performance. The Matrix system performance was reproducible under identical operating conditions. Treatment by the Matrix system did not reduce the groundwater toxicity for water fleas and fathead minnows at the 95% confidence level. Toxicity reduction achieved through VOC removal appears to have been negated by the formation of toxic byproducts including aldehydes and haloacetic acids. Estimated treatment costs are about $7.60 per 1,000 litres of groundwater.
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Research Article|
October 01 1998
Field evaluation of a photocatalytic oxidation technology
Kirankumar Topudurti;
Kirankumar Topudurti
*Tetra Tech EM Inc., 200 East Randolph Drive, Suite 4700, Chicago, IL 60601, USA
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Mary Wojciechowski;
Mary Wojciechowski
*Tetra Tech EM Inc., 200 East Randolph Drive, Suite 4700, Chicago, IL 60601, USA
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Sandy Anagnostopoulos;
Sandy Anagnostopoulos
*Tetra Tech EM Inc., 200 East Randolph Drive, Suite 4700, Chicago, IL 60601, USA
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Richard Eilers
Richard Eilers
**US EPA NRMRL, 26 West Martin Luther King Drive, Cincinnati, OH 45268, USA
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Water Sci Technol (1998) 38 (7): 117–125.
Citation
Kirankumar Topudurti, Mary Wojciechowski, Sandy Anagnostopoulos, Richard Eilers; Field evaluation of a photocatalytic oxidation technology. Water Sci Technol 1 October 1998; 38 (7): 117–125. doi: https://doi.org/10.2166/wst.1998.0284
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