New system in London, Ontario to generate power from waste

The London Free Press in London, Ontario reported May 16 that the city’s Greenway water treatment plant will be installing an organic Rankine cycle (ORC) power generation system, running on organic waste to generate an estimated 3.75 gigawatt-hours of energy a year.

          The ORC system turns steam generated by burning sewage sludge into electricity, the article explains. About 60 per cent of London’s sewage ends up at Greenway. A centrifuge concentrates it into a sludge that’s about 26 per cent solids, with a consistency like toothpaste. About three dry tonnes of sludge an hour is burned in an incinerator at 870 C. The output of 600 kW will offset part of the plant’s 3MW of demand, for a projected savings of some $600,000 a year.

          Original story: https://lfpress.com/news/local-news/london-sewage-plant-poised-to-turn-poop-into-power

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