A Better ToiletFor A Cleaner World
Solid Waste Drying and Sizing with Helical Auger
The first stage of the solid waste processing module consists of an auger-based dryer/conveyer unit.
The auger is a helical screw device designed to move and dry the feces before converting it into solid fuel for combustion. Heat from the combustion process accelerates drying, while mechanical apertures along the auger length generate burnable sized pellets of uniform size. This video shows some preliminary sizing experiments performed using miso paste as a surrogate. Uniform sizing facilitates combustion and optimum energy conversion on the back end of the solid waste processing module.