ÖBB Karawanks Tunnel: Austria
ÖBB Karawanks Tunnel
In the ÖBB Karawanks tunnel, 160,000 m² of tunnel wall surface over a length of 8 km was cleaned. At the same time, the dirty water was reprocessed so that it could be used again for cleaning. For the work, the large-area cleaner (including crane assembly), the water treatment system, and the water tanks were mounted on wagons, and the cleaning was carried out directly from there.
You can find similar projects in the following applications:
In this reference the following processes are used: