7 Simple Secrets to Totally Rocking Your Where does wastewater come from?
http://codytpoh759.unblog.fr/2019/08/02/a-beginners-guide-to-wastewater-treatment-process/
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,