New Ghent neighbourhood heated with waste
De Nieuwe Dokken, a new harbour-area district with housing, a school and a sports hall, will be fully heated with energy reclaimed from wastewater
The future of heat
The project is possible thanks to Zawent technology, an innovative combination of existing technologies that retrieves energy from wastewater. Water from sources such as vacuum toilets and ground-up food waste will be collected and converted into biogas. Heat will be recuperated from other forms of wastewater, and the combination of the two will be sufficient for one-third of the heating needs of the buildings.
Any residual water will be purified and re-used by Ghent hygiene chemical company Christeyns, which will in turn provide its industrial residual heat to the Ghent quarter – enough for the remaining heating needs.
The Zawent system costs about €4 million. This is the first time the technique will be used on such a large scale in Flanders. De Nieuwe Dokken development project will be completed in 2019.
The initiative fits in with Ghent’s efforts to become climate-neutral by 2050. In the meantime, the city’s is working to lower CO2 emissions by 20% by 2019 and by 40% by 2030. On 20 April, the city climate-friendly systems and process will be presented at the event Gent Klimaatstad.
Photo: Architectural rendering of De Nieuwe Dokken neighbourhood
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