Glossary of Water and Wastewater TermsA B C D E F G H I J K L M N O P Q R S T U V W Y Z
5 random terms from our glossary
WattA unit of power equal to one joule per second. The power of a current of one ampere flowing across a potential difference of one volt.
SimulateTo reproduce the action of some process, usually on a smaller scale.
Supernatant (soo-per-NAY-tent)The relatively clear water layer between the sludge on the bottom and the scum on the surface of a tank or basin, an anaerobic digester, or a septic tank (interceptor). This water from an anaerobic digester is usually returned to the influent wet well or to the primary clarifier. If the water (supernatant) is from a septic tank, it is discharged by gravity or by a pump to a leaching system or a wastewater collection system. Also called clear zone.
Surfaced VoidA dip or depression in the ground that appears when silting has taken place to a degree that a void is caused in the subsoil. Through successive cave-ins, the void reaches the surface of the ground.
Bedding DestructionLoss of grade, load capacity, or material of a bedding.