Glossary of Water and Wastewater Terms

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5 random terms from our glossary

curb inlet

A chamber or well built at the curbline of a street to admit gutter flow to the stormwater drainage system. Also see catch basin and stormwater inlet.

bioflocculation (BUY-o-flock-yoo-LAY-shun)

The action of some bacteria and algae causing the clumping together of fine, dispersed organic particles, resulting in faster and more complete settling of the organic solids in wastewater.

surcharged manhole

A manhole in which the rate of the water entering is greater than the capacity of the outlet under gravity flow conditions. When the water in the manhole rises above the top of the outlet pipe, the manhole is said to be surcharged.

sewer gas

  1. Gas in collection lines (sewers) that results from the decomposition of organic matter in the wastewater. When testing for gases found in sewers, test for oxygen deficiency, oxygen enrichment, and also for explosive and toxic gases.
  2. Any gas present in the wastewater collection system, even though it is from such sources as gas mains, gasoline, and cleaning fluid.

fire point

The lowest temperature of a liquid at which a mixture of air and vapor from the liquid will continue to burn.