ENV422H1 Lecture Notes - Sanitary Sewer, Iso 9000, Industrial Ecology
21 Mar 2013
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Document Summary
Set the best standard of what the technology can do. 600 facilities discharge directly to the river. Sewer use by-law: what stuff can go into the sewer. Municipality had to meet provincial standards at the plant. Small plants and do not have the technology to deal with the sewage. Province decided not to intervene sewer by-law. Model sewer by-law: hope every municipality adopted but only few did that, because municipality do not want to burden industry and discourage industry coming in. Municipality today in charge of sewer discharge, and have different standard. Toronto is one of the most sophisticated: buried vs burned the disposals, mostly sewage system was built before 1800, direct discharge during heavy rainfall. Sunshine beach retention tank, when the sewage level back to normal, they are re-directed back to sewage plant. Spout disconnected program to a permeable surface. True cost of water enormous fight. Ambient standards (concentration based standards based on what the ecology mean)
