This book explores how bioremediation biotechnology is used to remove pollutants in wastewater. Remediation of wastewater is important to ensure that pollutants generated in industry do not effect our environment negatively. Traditional wastewater remediation is not a sustainable process, however by using biological means the sustainability can be improved. Both conventional methods and bioremediation technologies are discussed. Applications for heavy metal, nitrate, and petroleum bioremediation, nanotechnology in bioremediation, and more are explored.