Professor Georgios Stefanidis and his team at Delft University of Technology propose to develop a toilet system that will apply microwave technology to transform human waste into electricity. The waste will be gasified using plasma, which is created by microwaves in tailor-made equipment. This process will yield syngas, a mixture of carbon monoxide (CO) and hydrogen (H2). The syngas will then be fed to a solid oxide fuel cell stack for electricity generation. This toilet system will be able to serve single households or groups of households.
Marginal Revolution : The Toilet Challenge