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Ryaverket

Ryaverket is a large sewage treatment plant in Gothenburg, Sweden. The plant is located in southern Hisingen and treats wastewater from 666,000 people in the Gothenburg region (2011).

The facility is owned by Gryaab, a municipal company owned by the municipalities whose wastewater is treated at Ryaverket. The owner municipalities are Gothenburg, Ale, Härryda, Mölndal, Kungälv and Lerum.

Ryaverket is the home of the world's longest mural, on 696 square meters, by Pontus Andersson.