Sanitary engineering
Sanitary engineering or sanitation engineering, also known as public health engineering or wastewater engineering, is the application of engineering methods to improve sanitation of human communities, primarily by providing the removal and disposal of human waste, and in addition to the supply of safe potable water. Traditionally a branch of civil engineering and now a subset of building services engineering and environmental engineering, in the mid-19th century, the discipline concentrated on the reduction of disease, then thought to be caused by miasma.