Most of us dont think about what happens when we flush – until raw sewage appears where it isnt wanted, on our beaches or pouring into rivers. Yet enormous quantities of offensive and hazardous organic waste and dirty water are flushed into the sewers every day. So how exactly is it all cleaned up? As Julian Doberski explains here, theres a certain biological magic in the cyclical process of turning sewage into river water, river water into drinking water and drinking water back into sewage. The Science of Sewage shines a light on this highly technical and complex operation.
