Degradation of 2,4,6-trichlorophenol by photo Fenton's like method using nano heterogeneous catalytic ferric ion

Laboratory scale studies were conducted to find out the effect of modified photo Fenton's like method on the degradation of 2,4,6-trichlorophenol (TCP). Nano scale iron (III) catalyst bound onto the surface of heterogeneous carbon binder was used in this photo Fenton's like method. The studies were carried out in a continuous mode under the solar radiation. The various operating parameters like pH, H2O2 concentration, catalyst: binder ratio and flow rate were optimised and the effect of initial concentration of TCP on this newly developed method was also studied. The best conditions for the solar light based degradation were found to be pH-3, H2O2 - 800 mg/L, catalyst (Fe): binder ratio - 1:1 and flow rate - 7.4 mL/s for 100 mg/L of TCP in 4 h. The degradation and mineralisation efficiencies at the optimised conditions were 100% and 89% respectively. (C) 2010 Elsevier Ltd. All rights reserved.