Rice University work: using waste water to grow algae
In a post titled How to Make Biofuel: Feeding Algae with Wastewater , ScienceTimes discusses recent work by workers at Rice University to treat wastewater employing algae.
The relevant paper is Low algal diversity systems are a promising method for biodiesel production in wastewater fed open reactors, ALGAE, vol. 30, no. 1, pp.67-79, March, 2015.