Wikipedia
Sanitary 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, in the mid-19th century, the discipline concentrated on the reduction of disease, then thought to be caused by miasma. This was accomplished mainly by the collection and segregation of sewerage flow in London specifically, and Great Britain generally. These and later regulatory improvements were reported in the United States as early as 1865.
It is not concerned with environmental factors that do not have an immediate and clearly understood effect on public health. Areas outside the purview of sanitary engineering include traffic management, concerns about noise pollution or light pollution, aesthetic concerns such as landscaping, and environmental conservation as it pertains to plants and animals.
Skills within this field are usually employed for the primary goal of disease prevention within human beings by assuring a supply of healthy drinking water, treatment of waste water, removing garbage from inhabited areas, and so on.
Compared to (for example) electrical engineering or mechanical engineering which are concerned primarily with closed systems, sanitary engineering is a very interdisciplinary field which may involve such elements as hydraulics, constructive modelling, information technology, project design, microbiology, pathology and the many divisions within environmental science and environmental technology. In some cases, considerations that fall within the field of social sciences and urban planning must be factored in as well.
Although sanitary engineering may be most associated with the design of sewers, sewage treatment and waste water treatment facilities, recycling centers, public landfills and other things which are constructed, the term applies equally to (for example) a plan of action to reverse the effects of water pollution or soil contamination in a specific area.
Usage examples of "sanitary engineering".
There were as many disaster stories about its use as there were about the equivalent bit of sanitary engineering that was fitted into submarines.
Then in her own right, she was a Darrell of the Westwitch Darrells, who prefer to call their source of income 'sanitary engineering products' rather than soap, so she wouldn't have starved if she'd run off with a mishi dancer.