Dr. Virendra Kumar Mishra currently working as Associate Professor at the Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi (India). He has done Ph.D. from Banaras Hindu University on water pollution in coal mines and treatment of coal miming effluent. He has expertise in analysis of water and wastewater, bioremediation and phytoremediation, environmental microbiology. After obtaining doctoral degree Dr. Mishra has worked at various levels at different National and international institution viz. Sejong University, Seoul, South Korea, IDAEA-CSIC, Barcelona Spain, IIT BHU. During the last fifteen years he has been an integral part in various research project related to wastewater treatment.