27 Sep 2014, Amritapuri
Amritavarsham – Amma’s 61st Birthday Celebrations
The Amrita Center of Biotechnology introduced a Microbial Fuel Cell, which utilizes energy from bacterial growth in wastewater to generate electricity while simultaneously bringing about purification of the wastewater – an important step in addressing the sanitation and energy problems that are very relevant in India.
VS Sivakumar, Kerala Minister of Health unveiled the cell during Amma’s 61st Birthday celebrations.
from the Amritapuri site
See also Oregon State University
Thinks: what about recovering electricity from waste water as it flows down to the ground from a block of flats?