When the video of Bill Gates drinking water made from human feces went viral, Seattle-based Janicki Bioenergy was immediately inundated with phone calls requesting information about the machine behind the magic: the Omni Processor. More than 2 billion people around the world lack sufficient sewage treatment and are forced to defecate in the open, leading to infection and huge economic strain. The Omni Processor aims to help by turning human waste into a valuable product. It dries the sludge and removes the liquid, which becomes water vapor that can be made into clean, FDA-approved drinkable water. Other similar sanitation technologies are often short lived because they cost so much to power. The Omni Processor, however, is self-sustaining. The solid waste is burned to fuel a generator that creates electricity that gets fed back into the Omni Processor. Whatever is leftover can be added to the local power grid. Last year, Janicki launched a pilot program in Dakar, Senegal, where the machine is processing a third of the local septage. The company is taking orders for its new and improved machine, the Omni Processor S200, as well as working on a self-sustaining household toilet that runs on waste.