Danish city pioneers powering water treatment plant with sewage

Why let perfectly good sewage go to waste when it could be powering the very plant used to treat it? Excellent question, and one that the Danish city of Aarhus answered with a simple, “We don’t.” Bacteria-filled digesters create biogas, which is then burned and used for electricity. Estimates say the system will produce 192% of the power needed to run the plant, the excess of which will go to power the pumps used to distribute clean water and bolster the local electric grid. No waste in sight at this plant.

Featured Videos:

Follow @RupeshNandy