Effluent 03 : General. A discharge of liquid: generally used to describe a stream of liquid after some attempt at separation or purification has been made. (SSWID)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}