Gallery: Spanish Town Become World’s First to Run its Vehicles on Sewag...

 

Photo via Shutterstock

Say you’re a small town looking to add some green energy options to your city. You could invest in good old wind or solar power, or in the case of one Spanish town, you could just ask your citizens to flush their toilets. That’s the concept behind Chiclana de la Frontera’s sewage treatment plant, which is the world’s first plant that will be used to convert sewage into renewable biofuel.

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