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Gates Foundation’s Competition May Have Handle on Reinvented Toilet

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SEATTLE (AP) — These aren’t your typical loos. One uses microwave energy to transform human waste into electricity. Another captures urine and uses it for flushing. And still another turns excrement into charcoal.

They are part of a Bill & Melinda Gates Foundation competition to reinvent the toilet for the 2.6 billion people around the world who don’t have access to modern sanitation.

Scientists from around the world have taken up the challenge and the foundation planned to announced Tuesday which projects would be getting more money to take their ideas from the lab to cities.

There, local entrepreneurs will use the new technology to turn pollution into cash.

To pass the foundation’s threshold for the world’s next toilet, it must operate without water, electricity or a septic system, not discharge pollutants, preferably capture energy or other resources and operate at a cost of 5 cents a day.

The United Nations estimates disease caused by unsafe sanitation results in about half the hospitalizations in the developing world. About 1.5 million children die each year from diarrheal disease.

Scientists believe most of these deaths could be prevented with proper sanitation, along with safe drinking water and improved hygiene.

The foundation expects to field test its first prototypes within the next three years.

Most of the prototypes on display this week in the open courtyard of the Gates foundation’s Seattle headquarters turn solid waste into energy. This is both a practical and pragmatic solution to the solid waste puzzle, said Carl Hensman, program officer for the foundation’s water, sanitation and hygiene team.

The roughly $42 million project started just about a year ago and Hensman said they decided to hold a toilet fair this week to show how far the scientists have gotten in that time and to give them an opportunity to learn from each other and potentially collaborate.

Among those scheduled to attend the toilet fair were government ministers from African nations, utility workers and potential financial partners like UNICEF and Oxfam.

Reinventing the toilet has the potential to improve lives as well as the environment.

Flush toilets waste tons of potable drinking water each year, fail to recapture reusable resources like the potential energy in solid waste and are simply impractical in so many places.

“The question is why haven’t we done this before,” Hensman said.

To read more about what the Gates Foundation is doing, click HERE.

The Bill and Melinda Gates Foundation is located at:
1551 Eastlake Ave E
Seattle, WA 98102
http://www.gatesfoundation.org

– Copyright 2012 The Associated Press with contribution from Tama Fulton.

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