The technological process used to treat Prague’s wastewater is called mechanical-biological treatment. The first stop along the way is mechanical pre-treatment, where insoluble pollutants suspended in the wastewater are removed. For the first stage of pre-treatment, screens are installed to filter out particals larger than 3 mm in size. These screens also catch objects that shouldn’t be in sewers at all, like wet wipes, nappies and other waste items that belong in mixed or sorted waste bins. More than 3 tonnes of screened waste and almost 1.5 tonnes of sand and gravel are removed from the New Water Line every day.
This building also houses a massive air deodorization unit, which continuously draws off the air so there’s no smell inside or outside. Thanks to this process the discharged air doesn’t cause any odour pollution in the surroundings.
… that Prague’s wastewater flows through a network of sewers with a combined length of 3,742 km?
That’s about the distance from Prague to Jerusalem.
If you want to know more, continue to other parts of the treatment plant ...
