Hydrodynamic Cavitation as a Preliminary Treatment for CETP Influent

The industrial effluent discharges into the water bodies resulting water pollution has become a major problem for the environment, human being and living creatures. Now days, new parameters such as dyes, pesticides, and pharmaceutical drugs are being spotted in the water bodies, which are bio-refractory to microorganisms and easily not removable. CETP wastewater consist of high refractory organic compounds in very large amount which cannot be degraded by biological treatment and therefore advanced oxidation process are required to treat them which convert the complex refractory organic compounds into simpler compounds such as CO2 and H2O. For meeting the high standards of environmental regulations, day by day there is evolution in the field of wastewater treatment schemes. The present work illustrates the use of such techniques like hydrodynamic cavitation for CETP wastewater treatment. Hydrodynamic cavitation is one of the latest advanced oxidation processes which uses venturi/orifice plate as a cavitating device to generate the cavities, these cavities get collapsed and generate OH* and H* radicals which react with refractory organic compounds in wastewater and oxidized them.