Treatment of trichlorophenol by catalytic oxidation process.
The oxidation of 2,4,6-trichlorophenol (TCP) by ferrous-catalyzed hydrogen peroxide was quantified and modeled in the study. TCP was effectively degraded by hydroxyl radicals that were generated by Fe(II)/H(2)O(2) in the oxidation process. The oxidation capacity (OC) of the process depends on the concentrations of oxidant (hydrogen peroxide) and oxidative catalyst (ferrous ion). Up to 99.6% of TCP removal can be achieved in the process, provided the doses of Fe(II) and H(2)O(2) are selected correctly. The OC of the process was successfully predicted through a kinetic approach in a two-stage model with some simple and measurable parameters, which makes the model useful for predicting, controlling and optimizing the catalyzed oxidation process in the degradation of TCP.
Department of Civil and Structural Engineering, Research Centre for Urban Environmental Technology and Management, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. cewchu@polyu.edu.hk
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D002384:Catalysis; D002733:Chlorophenols / Q000737:chemistry*; D005544:Forecasting; D017665:Hydroxyl Radical / Q000737:chemistry; D007700:Kinetics; D008962:Models, Theoretical; D009153:Mutagens / Q000737:chemistry*; D016877:Oxidants / Q000737:chemistry; D010084:Oxidation-Reduction; D018508:Water Purification / Q000379:methods*
D002733:Chlorophenols; D009153:Mutagens; D016877:Oxidants; D017665:Hydroxyl Radical; C024564:2,4,6-trichlorophenol