Teenage girls in Africa entered a science fair in Lagos in November, 2012 unveiling a device of their own invention — a urine-powered generator.
The collaborators, ages 14 to 15, said their device generates one hour of electricity from one liter (about a quart) of urine and described the process like this:
- Urine is put into an electrolytic cell, which separates out the hydrogen.
- 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.
(READ more about the device in this 2012 article by Gadget Nuz)