Soundscape recorded in the sand removal building. The installation is used for the final removal of sand from sewage (about 6 tonnes of sand per day). The...

Sounds recorded at a site where sewage purified from sand goes towards the primary settling tanks. The recording was made at the Płaszów Sewage Treatment...

Sounds recorded above the primary settling tank. It is one of four round tanks in which the last stage of mechanical treatment takes place, i.e. separation...

Recording from under the James Kay engine, also known as the Dancers End engine, takes its name from Lord Rothschild's estate at Dancer's End, near Tring,...

The operation of pumps which dose the raw water coagulant in the coagulation building. The raw water from the intake on the Rudawa River is pumped into...

Operation of the chlorine dioxide production generators for water disinfection. A chemical reaction occurs in the generators; as a result of mixing...

Soundscape recorded in the hall of the treated water pumping station. A set of pumps and auxiliary devices suck treated water from collecting wells...

Sounds of the sludge thickening press. ZUW Rudawa also handles sludge generated in the water treatment process (sludge from sedimentation in post-coagulation...

The sounds of high-speed mixers in the coagulation building. Rapid mixers are used to quickly dissolve the dosed coagulant (poly-aluminium chloride) in...

The sounds of slow mixers in the coagulation building. The slow mixers consist of eight chambers fitted with two slow agitators with rotation speed regulation....

The sound was recorded in the course of aerating the sand filter. Water from the settling tank where most suspended matter was removed, goes into the...

The sound was recorded in the course of rinsing the sand filter bed. The recording was made at the Rudawa Water Treatment Plant, which is part of Krakow...