The Ecologist

 
A cow having a pee
Urine from both animals and humans could be used to generate hydrogen power
More articles about
Related Articles

The power of wee: urine could be green energy

Ecologist

16th September

Urine could be used to generate electricity and as a free alternative to mineral fertilisers

Two separate studies have demonstrated the potential of human waste as both an energy source and fertiliser.

Finnish scientists found that human urine together with wood ash could act as an alternative fertiliser for tomatoes.

Surendra Pradhan and his colleagues from the University of Kuopio found that the urine/wood ash combination increased the yields of tomatoes in comparison to non-fertilised plants.

They also produced equal amounts of tomato fruits as mineral fertilised plants without posing any microbial or chemical risks.

Urine power

In a separate development, scientists at Ohio University have developed technology to release hydrogen from ammonia compounds within urine. The hydrogen could be obtained from either human or animal urine.

The gas can then be burned or used in fuel cells to power cars or electrical devices.

The team is now trying to commercialise the technology and bring it to the mass market.

Useful links
Finnish study

See also

 

Previous Articles...

Work for The Ecologist as a Contributing Editor

ECOLOGIST COOKIES

Using this website means you agree to us using simple cookies.

More information here...

 

FOLLOW
THE ECOLOGIST

 

Help us keep the Ecologist platform going

Since 2012, the Ecologist has been owned and published by a small UK-based charity called the Resurgence Trust. We work hard to support the kind of independent journalism and comment that we know Ecologist readers enjoy but we need your help to keep going. We do all this on a very small budget with a very small editorial team and so joining the Trust or making a donation will show us you value our work and support the platform which is currently offered as a free service.

Join The Resurgence TrustDonate to support the Resurgence Trust