The sewage treatment plant (12): mechanical sludge thickening
Soundscape recorded at the biological sludge thickening station. Sludge generated in the course of biological and mechanical treatment is used for biogas…

The soundscape of the repair hall at Podgórze depot. The recording was made in the part of the hall where overhauls are done, such as fitting older cars with low floors. Podgórze tram depot of MPK Public Transport company in Krakow is located in a Krakow district called Łagiewniki. It opened in 1938 and today is one of two active tram depots in Krakow.
Sound recording: Monika Widzicka
Photo: Piotr Żabicki
Soundscape recorded at the biological sludge thickening station. Sludge generated in the course of biological and mechanical treatment is used for biogas…
Since 1941 Siemens has been producing telephones in the small town of Bocholt, Germany. Today there are still 550 workers making cordless…
The space in the center of Ljubljana is intended for the construction of the new national and university library. Due to various…
The bell on the historic BT1 tow car. The tow car, also called the tram locomotive, dates from the 1920s and was…