Bioenvironmental engineering is the application of engineering principles to the natural environment and its ecosystems, for preserving and/or improving?environmental?quality of life. Bioenvironmental engineering solutions may seek to address topics of concern in soil ecology, environmental protection, environmental toxicology, waste treatment and management, land treatment, air quality, renewable biofuels and ground water hydrology. Bioprocess engineering is the application of engineering principles to the design, construction, integration and/or maintenance of environmentally responsible systems with the use of biological materials for process sustainability and/or improvement.