Process Flowchart of Effluent Treatment Plant (ETP)

Effluent can
be defined as the excess chemical liquor which is discharged after using
original operation.

Effluent is
defined by the United States Environmental Protection Agency as "wastewater
- treated or untreated - that flows out of a treatment plant, sewer, or
industrial outfall. Generally refers to wastes discharged into surface waters".
The Compact Oxford English Dictionary defines