Treatment Of Methylated Chloro Phenols Using Uv Mediated Oxidation Processes

Abstract

In this study, decomposition of two methylated chloro phenols - 4chloro3methylphenol
(4C3MP) and 2chloro5methyl phenol (2C5MP) are investigated using various UV mediated oxidation
processes- Fenton, UV/H2O2, UV/Fenton and UV/TiO.. Among all the processes, Fenton accelerated
with UV is observed to be efficient in decreasing the COD with a maximum removal rate of 98.5% for
4C3MP and 95.2% for 2C5MP. First order equations were used in evaluating the Kinetic constants.
Photo mediated Fenton process is observed to have maximum kinetic constants of 5.1× 10- 3
for 2C5MP
and 8.3× 10- 3
for 4C-3MP. Among the two chloro substituted cresols, decomposition of 4C3MP is
observed to be higher than 2C5MP i.e., 95.2% for 4CMP and 86% for 2C5MP