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Bill Gates wil het toilet heruitvinden

11/09/2018
Graphic News

November 6, 2018 -- Bill Gates heeft een nieuwe benaderwijze getoond voor het steriliseren van menselijk afval op de Reinvented Toilet Expo in Beijing. Eén aanpak die de voorkeur heeft van de miljardair-filantroop is Caltech’s autonome huistoilet en afvalwaterbehandelingssysteem – een recente winnaar van de “Reinventing the Toilet Challenge” van zijn stichting.

The Bill & Melinda Gates Foundation has spent $200 million over the last seven years, funding sanitation research projects, including 20 toilet and sludge-processing designs that convert human waste into clean water and fertiliser.

Gates finds one approach from the California Institute of Technology particularly interesting. It’s an electrochemical reactor which can break down water and human waste into fertiliser and hydrogen – which in turn can can be stored in fuel cells as energy.

For every dollar invested in sanitation, about $5.50 is returned to the global economiy, according to the World Health Organisation.


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