Synopsis With the increasingly stringent national and international regulations governing wastewater treatment in today's environment, to develop innovative and more efficient wastewater technologies have become the crying need of the time. In the last few years, research on new methods for wastewater treatment has gone from processes involving, mere phase transfer (e.g. air stripping, activated carbon adsorption etc.) to complete mineralisation of the contaminant to ecologically compatible components i.e. carbon dioxide and water. In order to develop the new technologies for wastewaters treatment in 21 century, this book will be a guide for opening a new vista in the field of pollution ecology. This book is a unique compilation of 78 research articles of national and international scientists, which will act as a keyboard for students, academicians, researchers, scientists, administrators and ecoplanners.