15 Weird Hobbies That'll Make You Better at What is considered wastewater?
http://troyakjm752.jigsy.com/entries/general/15-terms-everyone-in-the-sources-of-industrial-wastewater-industry-should-know
Wastewater refers to all effluent (= sewage or liquid waste that is discharged into water bodies either from direct sources or from treatment plants) from household, commercial establishments and institutions,