Industrial wastewater including those from petrochemicals petroleum refining and coking plants contain appreciable amount of phenol or chlorophenols which have been identified as a hazardous compounds for many aquatic organisms by Environment Protection Agencies. Compliance with these stringent discharge limits and the most economic was of achieving this without loss of production has thus become a challenge to human ingenuity and responsibility. This has led to continued refinement of existing treatment technologies and recognition and development of promising emergent technologies like...