Oil-producing algae clean up waste water
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Green, oil-producing algae appear to be able to remove problematic pollutants from waste water. So they clean up the waste and produce fuel at the same time. Researchers of the US Rice University discovered that oil-producing algae can eliminate more than 90% of nitrates and over half of phosphates in waste water. So far, waste water treatment systems in the USA have not yet been able to do this in a cost-effective way. Using this technology, cleaning up would also produce a commercial fuel.