Glossary of Water and Wastewater Terms

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5 random terms from our glossary

zooplankton (ZOE-uh-PLANK-ton)

Small, usually microscopic animals (such as protozoans), found in lakes and reservoirs.

static water level

In a well, the elevation or level of the water table when the pump is not operating. Also, the level or elevation to which water would rise in a tube connected to an artesian aquifer, basin, or conduit under pressure.

electrochemical reaction

Chemical changes produced by electricity (electrolysis) or the production of electricity by chemical changes (galvanic action). In corrosion, a chemical reaction is accompanied by the flow of electrons through a metallic path. The electron flow may come from an external source and cause the reaction, such as electrolysis caused by a direct current (DC) electric railway, or the electron flow may be caused by a chemical reaction, as in the galvanic action of a flashlight dry cell.

O&M Manual (operation and maintenance manual)

A manual that describes detailed procedures for operators to follow to operate and maintain a specific treatment plant and the equipment of that plant.

FOG (fats, oils, and grease)

Byproducts of food preperation, cooking, and cleanup consisting of fatty acids and glycerol that can clog wastewater collection pipes.