Environmental engineering is a sub-discipline of chemical and civil engineering that is concerned with the improvement and maintenance of the environment. Its objective is promoting human health, improving the quality of life and protecting ecosystems. The applications of environmental engineering are far-reaching. Its foundations are built upon the principles of geology, chemistry, ecology, hydraulics, biology, microbiology, mathematics and hydrology. This helps in deriving solutions for the control of water and air pollution, waste water management, waste disposal, recycling, etc. There has been rapid progress in environmental engineering and its applications are finding their way across multiple industries. While understanding the long-term perspectives of the topics, the book makes an effort in highlighting their impact as a modern tool for the growth of this field. Researchers and students in this area of study will be greatly assisted by this book.