ABSTRACT

Corp. AVGF® Automatic valveless gravity filter by USFilter/Warren. AWI Anthratech Western, Inc. AWS American Welding Society. AWT See “advanced wastewater treatment (AWT).” AWWA American Water Works Association. AWWARF American Water Works Association Research Foundation. axial flow The flow of fluid in the same direction as the axis of symmetry of a

tank or basin. axial flow pump A type of centrifugal pump in which fluid flow remains parallel

to the flow path and develops most of its head by the lifting action of the vanes. Azenit Biological wastewater treatment process technology by USFilter/Krüger

(North America) and OTV. azeotropic A liquid of two or more substances that behaves like a single substance

in that the vapor produced by partial evaporation has the same composition as the liquid.