The challenge that one faces today is to meet these stringent requirements in an environmentally acceptable and cost effective manner. The present book addresses the application of the state-of-the-art technology to the solutions to today s problems in industrial effluent pollution control and environmental protection. The highlight of this book is the inclusion of the salient features of process modifications and other important methods and techniques for the minimization of wastes. The chapter on process modification for waste minimization provides new technical features and tools, latest technologies and techniques, and other industrial operations. Besides, the text covers the role of an environmental engineer in the methodology for making pollution control decisions.