From waste to energy: Danish plant flexes the power of wastewater

LONDON (Thomson Reuters Foundation) - Since a Danish wastewater plant produced more energy than it needed last year becoming a "green power station", engineers from Serbia to China have been lining up to learn how it has managed to turn wastewater into a valuable energy source.

Magdalena Mis tells how a waste water
plant produces more energy than it needs.

Most water treatment plants - that convert wastewater and sewage into something that can go back into the water cycle - are energy hogs, with the race on to find technologies to cut electricity usage to save costs and the environment.

So international interest was piqued when the Marselisborg Wastewater Treatment Plant in Aarhus, Denmark's second largest city, generated nearly 70 percent more energy than it needed in 2016 following a 3 million euro ($3.2 million) upgrade.

This put Aarhus on track to become the first city in the world to provide and pump fresh water to all its citizens from energy created solely from household wastewater and sewage, escalating interest in how to make wastewater into a resource.

Read the Reuters story by Magdalena Mis - “From waste to energy: Danish plant flexes the power of wastewater.”