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 Z Symbols and Numbers

5 random terms from our glossary

Pipe Dip

See DIP.

Confined Space, Non-permit

A non-permit confined space is a confined space that does not contain or, with respect to atmospheric hazards, have the potential to contain any hazard capable of causing death or serious physical harm.

Mixed Liquor Suspended Solids (MLSS)

The amount (mg/L) of suspended solids in the mixed liquor of an aeration tank.

Natural Organic Matter (NOM)

Humic substances composed of humic and fulvic acids that come from decayed vegetation.

Agronomic Rates

Sludge application rates that provide the amount of nitrogen needed by the crop or vegetation grown on the land while minimizing the amount that passes below the root zone.