10 Inspirational Graphics About Industrial wastewater disposal

https://www.minds.com/wellan1ehu/blog/how-to-explain-water-and-waste-management-to-a-five-year-old-1004126917285961728

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,