The sewage treatment plant (5): fine screens
Soundscape recorded in the fine screen hall. Sewage goes through 6 mm fine screens. Every day, about 3 tonnes of impurities are…
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The sewage treatment plant (4): the main pumping station
Sounds recorded above the main pumping station where sewage is pre-treated on fine screens. The pumps elevate the sewage to a height…
The sewage treatment plant (3): coarse grids
Soundscape recorded in the coarse grid hall. This is the first stage of mechanical sewage treatment. 30 mm grids retain larger solid…
The sewage treatment plant (2): the sewage inlet channel
Sounds recorded over the sewage inlet channel from Krakow central sewage system. On sunny days, approximately 165,000 m3 sewage goes through it…
The sewage treatment plant (1): the control room
Soundscape recorded in the control room of the Płaszów Sewage Treatment Plant. It is fitted with operator stations and a synoptic table…
Waterworks (12): the sludge press
Sounds of the sludge thickening press. ZUW Rudawa also handles sludge generated in the water treatment process (sludge from sedimentation in post-coagulation…
Waterworks (11): the treated water pumping station
Soundscape recorded in the hall of the treated water pumping station. A set of pumps and auxiliary devices suck treated water from…
Waterworks (10): the chlorination building – chlorine dioxide production generators
Operation of the chlorine dioxide production generators for water disinfection. A chemical reaction occurs in the generators; as a result of mixing…
Waterworks (9): the carbon filter hall
Sounds recorded as the water goes through carbon filters. Filtration on a bed with active carbon improves the colour and taste of…
Waterworks (8): the intermediate pumping station
The sound of the sand filter aeration process was recorded in the intermediate pumping station in the filter building. At this point,…
Waterworks (7): the sand filter building – rinsing completion
The sounds recorded at the completion of the aeration and rinsing process of the filter bed in the sand filter building. The…
Waterworks (6): the sand filter building – water drainage after rinsing
After aeration and rinsing of the filter, the impurities and the backwash go into the pipes and then into the desludger. The…
Waterworks (5): the sand filter building – filter rinsing
The sound was recorded in the course of rinsing the sand filter bed. The recording was made at the Rudawa Water Treatment…
Waterworks (4): the sand filter building – filter aeration
The sound was recorded in the course of aerating the sand filter. Water from the settling tank where most suspended matter was…
Waterworks (3): the coagulation building – slow mixers
The sounds of slow mixers in the coagulation building. The slow mixers consist of eight chambers fitted with two slow agitators with…
Waterworks (2): the coagulation building – rapid mixers
The sounds of high-speed mixers in the coagulation building. Rapid mixers are used to quickly dissolve the dosed coagulant (poly-aluminium chloride) in…