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Definition for

Effluent

Effluent is any outflow of water. In connection with human water uses, the term effluent is most often used in the context of water whose quality has been impaired by human use, animal use or otherwise compromised by its diversion for its natural source. Treated effluent is the term used for discharges from wastewater treatment plants and returned to a river, stream or other water source.

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