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Directory: Urine-Powered Generator from Nigeria

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Compiled by Sterling D. Allan
Pure Energy Systems News
November 10, 2012


Four teenage girls have invented and demonstrated at the fourth annual Maker Faire Africa a generator powered by urine.

"What these kids are doing is taking urea electrolysis and making hydrogen and then using that hydrogen to make electricity", according to Gerardine Botte, a chemical engineer at Ohio University who invented the urea electrolysis process. [1]

According to TheNextWeb, here’s how it works:

  • Urine is put into an electrolytic cell, which cracks the urea into nitrogen, water, and hydrogen.
  • The hydrogen goes into a water filter for purification, which then gets pushed into the gas cylinder.
  • The gas cylinder pushes hydrogen into a cylinder of liquid borax, which is used to remove the moisture from the hydrogen gas.
  • This purified hydrogen gas is pushed into the generator.
  • 1 Liter of urine gives you 6 hours of electricity.

According to NBC’s John Roach, expectations should be managed.

Botte said the technology is most practical as a way to make the wastewater treatment process more energy efficient, not as a primary power source. Wastewater treatment plants consume energy. Since urea is already being collected by such facilities, Botte says it makes sense to extract hydrogen from it. This in turn can be used to generate electricity, thus reducing the amount of outside energy required to run the wastewater treatment process. [2]

Official Websites

In the News

  • Featured: Waste to Energy > from Sewage > Urine >
    Urine-Powered Generator from Nigeria - Four teenage girls have invented and demonstrated at the fourth annual Maker Faire Africa a generator powered by urine. "What these kids are doing is taking urea electrolysis and making hydrogen and then using that hydrogen to make electricity", according to Gerardine Botte, a chemical engineer at Ohio University who invented the urea electrolysis process. (PESWiki; November 10, 2012)
  • African girls’ pee-powered generator raises questions - A urine-powered generator presented by a group of school-age girls at an innovation fair in Africa is generating buzz as a world-changing breakthrough, but a reality-check with the expert who invented the contraption at the heart of the technology might flush those expectations down the drain. (NBCNews; November 9, 2012)

See also

GENERAL W2E

PREVENTION OF WASTE

TYPES OF WASTE-TO-ENERGY

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