The Ruhrverband invites you to an open day at the Menden sewage treatment works

What actually happens to the water once it disappears down the drain? How is polluted wastewater turned back into clean water that can be returned to the natural water cycle? Answers to these and many other questions will be provided at the open day at the Menden sewage treatment works.

On Sunday, 21 June 2026, the Ruhrverband will be opening the gates of the Menden Wastewater Treatment Plant at Heidestraße 162, 58708 Menden, from 11 am to 4 pm, and warmly invites anyone interested to take a look behind the scenes of modern wastewater treatment. 

Visitors will have the opportunity to see the workings of a sewage treatment plant up close and experience the processes that ensure, day in, day out, that water bodies are protected and water resources are managed sustainably. Ruhrverband staff will be on hand to answer questions and provide fascinating insights into the various stages of wastewater treatment.

Those interested in technology will find plenty to enjoy, as will families, as there is plenty on offer for younger visitors too: games and fun will make the day an experience for young and old alike. Of course, refreshments will also be available. Food and drinks will be on hand, inviting visitors to round off their visit in a relaxed atmosphere.