Toilet developed by RTI International is based on electrochemical disinfection and solid waste combustion
Incinerating toilets may be powered by electric, gas, dried feces or other energy sources. They are used in environments where human waste cannot be otherwise dumped, or where normal toilets are too expensive or cumbersome to install. Such toilets gather excrement in a holding tank and then incinerate it, reducing it to sterile ash. Some will also incinerate grey and black water created from showers and sinks. In 2011 the Bill & Melinda Gates Foundation launched the Reinvent the Toilet Challenge to promote safer, more effective ways to treat human waste. Multiple teams under this program are developing toilets based all, or in-part upon solid waste combustion.