From Around the Web: 20 Fabulous Infographics About Water and waste management
http://emiliotfst945.angelfire.com/index.blog/1666758/10-meetups-about-wastewater-treatment-process-you-should-attend/
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,