From the sewer to the farm, via startup Ostara

A Canadian startup has built its first European plant to retrieve phosphorous — a key ingredient in fertilizer — from sewage and wastewater and turn it into fertilizer to grow more crops.

GE, NRG back Israeli water-to-energy startup

Turning wastewater – from cities or food processing plants – into electricity has always attracted investors fancy. Now an investor consortium of GE, NRG Energy and ConocoPhillips is making its first bet on an Israeli technology developer via its new fund called Energy Technology Ventures, the companies said Tuesday.

Bill Gates backs human waste-to-fuel tech

Making energy from poop can be a good profit-making and social enterprise. That’s the aim of a research project at Columbia University, where a professor is getting a $1.5 million grant from the Bill & Melinda Gates Foundation to develop a waste-to-energy technology.