Where and how is energy recovered from wastewater?

Wastewater energy can generally be recovered in three places: first, “in-house”; second, from the municipal wastewater system; and third, at the treatment plants. UHRIG’s Therm-Liner primarily harvests energy from the municipal wastewater system, owing to the large amount of energy there and the many potential consumers in the vicinity. By comparison, the wastewater energy potential of an individual house is small and therefore not very cost-effective. Wastewater treatment plants can generate vast amounts of energy, but once they have been recovered, they still need to be transported to potential consumers. The recovery of energy from the wastewater system is therefore a decentralized approach with the clear objective of directly connecting source and consumer.

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