From Sewage to Clean Water

See how the experts cleans tons of cubic meter of sewage water.

  • Experience a fountain of information, emotions and entertainment
    Smell a plethora of scents
    See a display of all the strange things that have been fished out the sewage water
  • Ease your body and mind by playing with the process of our sewage treatment

See how the experts from ERZ, Zurich Disposal and Recycling Services, in the Sewage Treatment Plant of Werdhoelzli, cleanse between 150,000 and 500,000 cubic meters of sewage water on a daily basis and see where it´s released back into the Limmat River as clean water. In this four part cleansing process, you will witness the solid and solute polluted matter being taken out of the sewage water and learn how the residue of that matter is transformed into something ecological and useful so that our water cycle remains clean.

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Time & Duration


2 h

Number of Participants 5 - 25


Private Tour

Private Tour

This tour for groups or individuals is available in these languages
German, English

Additional Information

Operator: Partner company