Abstract
Titanium dioxide photocatalysis, using 200 mgl−1 of TiO2, and photo-Fenton, using 20 mg l−1 of iron, were applied to the treatment of dimethoate dissolved in water at 50 mg l−1. A heterogeneous photocatalysis test was performed in a 35-l solar pilot plant with Compound Parabolic Collectors (CPCs) under natural illumination. A homogeneous photocatalysis test was performed in a different solar pilot plant with four CPC units and a total volume of 75 l. In this work total disappearance of dimethoate and 90% of mineralization were attained in both solar treatments. Treatment time, hydrogen peroxide consumption and ferric phosphate precipitation during photo-Fenton treatment were discussed.
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Acknowledgements
The authors thank the Spanish Ministry of Education and Science for its financial assistance under the “Fotodetox” Project (PPQ 2003-07596-C03-01). They also thank Mrs. Deborah Fuldauer for correcting the English. Isabel Oller thanks the Ministry of Education and Science for her Ph.D research grant.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s10311-006-0075-9
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Oller, I., Gernjak, W., Maldonado, M.I. et al. Photocatalytic treatment of dimethoate by solar photocatalysis at pilot plant scale. Environ Chem Lett 3, 118–121 (2005). https://doi.org/10.1007/s10311-005-0013-2
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DOI: https://doi.org/10.1007/s10311-005-0013-2