Page last updated at 06:24 GMT, Monday, 16 March 2009

Engineer on turning sewage into charcoal

Advertisement

German engineers have come up with a remarkable machine that turns sewage into charcoal.

If that was not enough of a feat, they say it helps the fight against climate change by locking up carbon from the sewage that would otherwise have gone into the air.

And to make it even more extraordinary, they are feeding the charcoal to plants and claiming that it helps them grow faster.

Helmut Gerber is an Engineer at the University of Applied Sciences, Bingen. He explains how biochar is created.

SEE ALSO

Story Tools

BBC navigation

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Americas Africa Europe Middle East South Asia Asia Pacific