Sewage-to-biofuel project is unveiled in Spain

07/7/2013 |

The All-gas project in Chiclana de la Frontera, Spain, will be the world's first wastewater plant to use sunlight to convert waste into biofuel for vehicle use. "Nobody has done the transformation from wastewater to biofuel, which is a sustainable approach," said All-gas project leader Frank Rogalla. "Carbon dioxide is used to produce algae biomass, and the green sludge is transformed into gas, a clean biofuel commonly used in buses or garbage trucks because it is less polluting," he added.

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