Glossary of Water and Wastewater Terms

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5 random terms from our glossary

pont-a-mousson pressure cell (MOO-san)

A device that works like a filter press and is used to perform filter tests. A cell applies pressurized air (7 to 225 psig) with a piston (instead of using a vacuum as with a Buchner funnel) to separate solids from a mixture.

filter aid

A chemical (usually a polymer) added to water to help remove fine colloidal suspended solids.

apparent color

Color of the water that includes not only the color due to substances in the water but suspended matter as well.

axis of impeller

An imaginary line running along the center of a shaft (such as an impeller shaft).

call date

First date a bond can be paid off.