The sewage treatment plant (14): sludge heating
Sounds recorded in the building with heat exchangers which heat the sludge to a temperature of about 38oC. Heated sludge goes to…
Sandblasting a ship hull
00:00
01:17
About the sound
Sandblasting is used to remove paint and rust from the ship hull. Sandblasting is a general term used to describe the act of propelling very fine bits of material at high-velocity to clean or etch a surface. Sand used to be the most commonly used material, but since the lung disease silicosis is caused by extended inhalation of the dust created by sand, other materials are now used in its place. Recorded inside a floating dry dock at Gotenius ship yard in Gothenburg.
Sound level: 116 dB, five meter away
Sound recordist: Torsten Nilsson
Photographer: Torsten Nilsson
Video recordist: Torsten Nilsson
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