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
impregnate
To saturate or fill. For example, as part of the cured-in-place pipe (CIPP) process, felt is saturated or impregnated with a resin.
grade
(1) The elevation of the invert (or bottom) of a pipeline, canal, culvert, or similar conduit. (2) The inclination or slope of a pipeline, conduit, stream channel, or natural ground surface; usually expressed in terms of the ratio or percentage of number of units of vertical rise or fall per unit of horizontal distance. A 0.5 percent grade would be a drop of 0.5 feet per 100 hundred feet (0.5 meters per 100 hundred meters) of pipe.
vertical offset
A pipe joint in which one section is connected to another at a different elevation, such as a drop joint.
cation exchange capacity (KAT-EYE-en)
The ability of a soil or other solid to exchange cations (positive ions such as calcium, Ca2+) with a liquid.
rotor
The rotating part of a machine. The rotor is surrounded by the stationary (nonmoving) parts (stator) of the machine.
