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Abstract
The ubiquitous presence of chlorophenols (CPs) in the natural environment illustrates the seriousness of CP pollution and the importance of an effective method for treating wastewaters containing CPs. The limitations of conventional wastewater treatment methods to effectively degrade/remove CPs having recalcitrant properties mandates the search for newer cost effective treatment technologies to be developed to meet the stringent environmental regulations. Advanced oxidation processes (AOPs) have evolved as the most promising techniques as they facilitate a substantial amount of chemical oxygen demand (COD) and total organic carbon (TOC) removal from industrial effluents. An extensive literature review of the widely used methods for CPs degradation is presented with due focus on AOPs. The overall objective is to review CP degradation by AOPs at length, with regard to specific reaction conditions, UV irradiation intensity, oxidants, degradation kinetics and intermediates/products formed thereof.