Glossary of Water and Wastewater Terms

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5 random terms from our glossary

sewer main

A wastewater collection pipe to which building laterals are connected. Also called a collection main.

elutriation (e-LOO-tree-A-shun)

The process of washing digested sludge with fresh water, plant effluent, or other wastewater to remove fine particulates or to change the alkalinity, reducing the demand for conditioning chemicals and improving settling/filtering characteristics of the solids.

evapotranspiration (ee-VAP-o-TRANS-purr-A-shun)

  1. The process by which water vapor is released to the atmosphere by living plants. This process is similar to people sweating. Also called transpiration.
  2. The total water removed from an area by transpiration (plants) and by evaporation from soil, snow, and water surfaces.

chlorinator (KLOR-uh-nay-ter)

A metering device that is used to add chlorine to water.

sanitary sewer

A pipe or conduit intended to carry wastewater or waterborne wastes from homes, businesses, and industries to the treatment works. Some systems combine the collection of wastewater and stormwater. Also see combined collection system.