Fenton and Photo-Fenton process is an Advanced oxidation process and is also an emerging technology for the treatment of waste water.This process involves the production of hydroxyl ions ,which has the highest oxidation potential to degrade the more complex organic compounds into simpler ones.This process consumes very less time for degradation and the efficiency also very high.It is more economical too.Balasubramanian, Gowtham Mr.Gowtham has completed his postgraduation in Environmental Engineering and worked as Assistant Professor for three Years.His areas of Interest is waste water Treatment using advanced Physio-chemical methods and he has received Outstanding contribution for reviewing from Journal of Environmental Chemical Engineering(Elsevier)