EARTh - Environmental Applications Reference Thesaurus

wastewater treatment

wastewater treatment
The processing of wastewater for the removal or reduction of contained solids or other undesirable constituents. It is divided into three steps: primary, secondary, and tertiary. Primary treatment uses screens and sedimentation tanks to remove most materials likely to float on the water or settle on the bottom. Secondary treatment uses a biological process to consume organic materials in the waste and disinfect the effluent. Tertiary treatment removes additional nutrients, suspended solids, and other pollutants.

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Date of creation
07-Mar-2013
Accepted term
07-Mar-2013
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