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Vacuum Sewers: Fundamentals and Design Methods

by Donald D. Gray, West Virginia Univ, United States,



Document Type: Proceeding Paper

Part of: Critical Water Issues and Computer Applications

Abstract:

Vacuum sewer (VS) systems have important advantages over conventional gravity sanitary sewers or septic tank-soil absorption systems when one or more of the following conditions hold: low to moderate population density, complex topography, flat topography, rocky soil, impermeable soil, high water table, or need for water conservation. VS systems require certain specialized components, most notably the automatic vacuum interface valve. Three lines of VS components are presently marketed in the United States. Envirovac and E-vac components are offered by Envirovac, Inc., of Rockford, Illinois. Airvac components are manufactured by the Airvac Division of Burton Mechanical Contractors, Inc., of Rochester, Indiana. In all vacuum sewers, the primary motive force is the difference between atmospheric pressure and the vacuum pressure generated at a central collection station.

Subject Headings: Sewers | Valves | Water conservation | Soil water | Water table | Wastewater management | Topography | United States | Illinois | Indiana

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