Living systems for sewage treatment – Options and consequences of what we do with our waste.

Ever wonder what happens to the stuff in your toilet after you flush? It's a good question to ask because municipal sewage is a major source of water pollution, posing a threat to both human health and aquatic environments. In addition to human excrement, sewage contains hundreds of chemicals and other toxic pollutants from households, businesses and industrial operations.
http://www.straightgoods.ca/ViewConsForum3.cfm?REF=64

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