Environmental engineering is a professional engineering discipline that takes from broad scientific topics like chemistry, biology, ecology, geology, hydraulics, hydrology, microbiology, and mathematics to create solutions that will protect and also improve the health of living organisms and improve the quality of the environment.Environmental engineering is a sub-discipline of civil engineering, chemical engineering and mechanical engineering.

Environmental engineering is the application of scientific and engineering principles to improve and maintain the environment to:

protect human health,
protect nature's beneficial ecosystems,
and improve environmental-related enhancement of the quality of human life.