Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9610461 | Catalysis Today | 2005 | 8 Pages |
Abstract
Several different pesticides (alachlor, atrazine, chlorfenvinphos, diuron, isoproturon and pentachlorophenol) considered PS (priority substances) by the European Commission and dissolved in water at 50Â mg/L (or at maximum water solubility) have been degraded at pilot-plant scale using photo-Fenton and TiO2 photocatalysis driven by solar energy. Two different iron concentrations (2 and 55Â mg/L) and TiO2 at 200Â mg/L have been tested and discussed, using mainly TOC mineralisation for comparison of treatment effectiveness. Vibrio fischeri (Microtox®) toxicity assays were also employed for evaluating the photocatalytic treatments, and comparison between these results and parent compound disappearance, TOC evolution and anion (or ammonia) release were discussed. Almost complete mineralisation and total detoxification were always attained. It has been demonstrated that evolution of chloride could be a key-parameter for predicting toxicity of chlorinated compounds.
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Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
M. Hincapié, M.I. Maldonado, I. Oller, W. Gernjak, J.A. Sánchez-Pérez, M.M. Ballesteros, S. Malato,