Wastewater is used for heating and cooling buildings. We present here two examples:
– The 2010 Winter Olympic Village, Vancouver, in Canada: the former 2010 Winter Olympic Village, later converted to apartment buildings, is heated with effluents from the wastewater treatment plant of a nearby village.
-Wintower high-rise building at Winterthur, Switzerland. Wastewater is used to heat the 28-storey wintower in cold winter months and to cool the building in summer. About 600 kW heating energy is extracted from wastewater taken from the sewer. Wastewater is also used for cooling in summer, absorbing energy from the building. This system is a demonstration of wastewater use as a carbon-neutral energy source for the year-round heating and cooling of buildings.
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