why is it important to treat sewage?
- SOT3Lv 68 years agoFavorite Answer
Untreated sewage can contain pathogens and diseases which can kill millions of people. The references give the specifics.Source(s): http://www.worstpolluted.org/projects_reports/disp... http://act.americanrivers.org/site/DocServer/Healt...
- 8 years ago
Sewage re-enters the main body, so you don't want a bunch of nasty infections water in the main stream. The main stream is filtered many times before it enters your tap, but for wild animals it is not(and some wild people:))