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

5 random terms from our glossary

Sludge Volume Ratio (S/V)

The volume of sludge blanket divided by the daily volume of sludge pumped from the thickener.

Manhole Depth

The measurement from the top of the manhole opening to the invert or lowest point of the trough at the bottom of the manhole.

Receiving Water

A stream, river, lake, ocean, or other surface or groundwaters into which treated or untreated wastewater is discharged.

Masking Agents

Substances used to cover up or disguise unpleasant odors. Liquid masking agents are dripped into the wastewater, sprayed into the air, or evaporated (using heat) with the unpleasant fumes or odors and then discharged into the air by blowers to make an undesirable odor less noticeable.

Water Table Head

See PRESSURE HEAD.