http://www.rdmag.com/articles/ ...

Published February 23, 2016 16:26 by Lynn Egan, Lachat Instruments- A Hach Company Brand - Chemist III/Product Applications manager

http://www.rdmag.com/articles/2016/02/turning-wastewater-electric-energy?et_cid=5134966&et_rid=54649453&type=cta&et_cid=5134966&et_rid=54649453&linkid=http%3a%2f%2fwww.rdmag.com%2farticles%2f2016%2f02%2fturning-wastewater-electric-energy%3fet_cid%3d5134966%26et_rid%3d%%subscriberid%%%26type%3dcta

Saw this article just now as well-