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
mechanical aeration
The use of machinery to mix air and water so that oxygen can be absorbed into the water. Some examples are paddle wheels, mixers, or rotating brushes to agitate the surface of an aeration tank; pumps to create fountains; and pumps to discharge water down a series of steps forming falls or cascades.
selector recycle
The recycling of return sludge or oxidized nitrogen to provide desired environmental conditions for microorganisms to perform a desired function.
bucket
(1) A special device designed to be pulled along a wastewater collection pipe for the removal of debris from the pipe. The bucket has 1 end open with the opposite end having a set of jaws. When pulled from the jaw end, the jaws are automatically opened. When pulled from the other end, the jaws close. In operation, the bucket is pulled into the debris from the jaw end and to a point where some of the debris has been forced into the bucket. The bucket is then pulled out of the pipe from the other end, causing the jaws to close and retain the debris. Once removed from the manhole, the bucket is emptied and the process repeated. (2) A conventional pail or bucket used in bucketing out and for lowering and raising tools and materials from manholes and excavations.
amperometric (am-purr-o-MET-rick)
A method of measurement that records electric current flowing or generated, rather than voltage.
recycle
The use of water or wastewater within (internally) a facility before it is discharged to a treatment system. Also see reuse.
