The Microsoft founder, Bill Gate, was seen in a video drinking a glass of water made from human feces to showcase a technology he said, could provide clean water in the developing world.
Bill said he wanted to begin sending processing plants around the world after the tests later this year. The project was welcomed by WaterAid, which said that it could particularly help in urban areas.
According to a charity organization statistics, about 748 million people worldwide lack access to clean water. In a video posted on his blog, Mr Gates watched as the human waste was fed into the processor, before drinking the end product from a glass.
"The water tasted as good as any I've had out of a bottle. And having studied the engineering behind it, I would happily drink it every day. It's that safe," he wrote in the blogpost.
In the video, the developer of the Omniprocessor system, Peter Janicki, says the raw "sewer sludge" is first boiled, during which process the water vapor is separated from the solids. Those solids are then put into a fire, producing steam that drives an engine producing electricity for the system's processor and for the local community.
The water is put through a cleaning system to produce drinking water. "Why would anyone want to turn waste into drinking water and electricity?" Gates asked.
The answer, he wrote, was because "diseases caused by poor sanitation kill some 700,000 children every year, and they prevent many more from fully developing mentally and physically". He added: "If we can develop safe, affordable ways to get rid of human waste, we can prevent many of those deaths and help more children grow up healthy."