Glossary of Water and Wastewater Terms
A B C D E F G H I J K L M N O P Q R S T U V W Y Z5 random terms from our glossary
plant hydraulic capacity
The flow or load, in millions of gallons per day (or portion thereof), that a treatment plant is designed to handle.
coning
Development of a cone-shaped flow of liquid, like a whirlpool, through sludge. This can occur in a sludge hopper during sludge withdrawal when the sludge becomes too thick. Part of the sludge remains in place while liquid rather than sludge flows out of the hopper. Also called coring.
dissolved air flotation (DAF)
A process to seperate solids from water. Air is dissolved into wastewater under high pressure and is then released into the bottom of the tank. Air comes out as very fine bubbles that cling to the solids and cause them to float. The solids are then skimmed from the surface of the tank.
well point
A hollow, pointed rod with a perforated (containing many small holes) tip. A well point is driven into an excavation where water seeps into the tip and is pumped out of the area. Used to lower the water table and reduce flooding during an excavation.
pipe sink
See dip.
