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Friday, April 28th, 2017

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

Author:     Magdalena Mis
Source:     Thomson Reuters Foundation
Publication Date:     Thursday, 6 April 2017 13:52 GMT
 Link: From waste to energy: Danish plant maximizes the power of wastewater
Stephan:   While the Trump administration, with the support of the strange parallel universe of his voters, does everything it can to keep America enthrall to carbon energy, other countries are very quickly moving in a new direction. Here is some good news about a new technology in Denmark, that will spread quickly I think.

Danish waste plant that generates more energy than it consumes Credit: Thomson Reuters Foundation

LONDON  — 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.

Most water treatment plants – which 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.

“We […]

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