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.
Chu
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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
Law
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CK
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