Environmental engineering is an engineering discipline that concentrates on applying scientific and engineering principles to enhance and maintain the environment. As a sub-discipline, it is rooted in both civil engineering and chemical engineering. Diverse scientific fields like chemistry, microbiology, ecology, geology, biology, hydraulics, and mathematics are integrated under environmental engineering to devise methods for safeguarding and enhancing the health of living organisms. Its primary objectives are to protect human health and ecosystems, as well as to enhance the quality of human life related to the environment. The objective of this book is to give a general view of the different concepts of environmental engineering. The topics covered herein deal with the new techniques and their applications in a multidisciplinary approach. Those in search of information to further their knowledge will be greatly assisted by this book.