The Anatomy of a Great How do we waste water?
https://collinpdqp412.page.tl/Don-h-t-Make-This-Silly-Mistake-With-Your-Wastewater-Treatment-Process.htm
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,