Environmental Engineering & Disaster Management is comparatively a fascinating branch of Engineering. It deals with the concepts of chemistry applied to the different fields of engineering. It deals mainly with the following major field namely-Water pollution, Air pollution, Different acts, Soil waste management, Ecology etc. The main objects of this books is to furnish important informations related to these fields. The book will be helpful for the engineering students. The questions in this book have been complied from B.E. Exam. The authors are deeply indebted to a number of teachers in various engineering colleges of the state, mainly Dr. Ritu Vyas (Pacific Institute) and Dr. R.K. Malkani Sharma (Techno India NJR Institute) for their co-operation during the preparation of this manuscript. The authors express their thanks to their colleagues and friends, who encouraged for writting such a book, which is helpful to engineering students. Any suggestion from teacher, students and research are always welcome