Photosynthetic Bacteria
https://energy.economictimes.indiatimes.com/news/oil-and-gas/innovation-purple-bacteria-may-help-harvest-green-fuel-from-wastewater/66619380
Purple bacteria ‘batteries’ turn sewage into clean energy
Published in Frontiers in Energy Research, their study is the first to show that purple phototrophic bacteria – which can store energy from light – when supplied with an electric current can recover near to 100% of carbon from any type of organic waste, while generating hydrogen gas for electricity production.
“One of the most important problems of current wastewater treatment plants is high carbon emissions,” says co-author Dr Daniel Puyol of King Juan Carlos University, Spain. “Our light-based biorefinery process could provide a means to harvest green energy from wastewater, with zero carbon footprint.”
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