The sewage treatment plant (16): sludge dewatering – the mixer
Sounds recorded at the sludge dewatering mixer. Fermented sludge following biogas production goes there. The dewatered sludge contains about 25% dry matter…

Extinction Rebellion is a global organization founded in the united kingdom the 31:th of October 2018. Since then it has grown in an enormous pace and established itself all around the world. The movement have fractions in many Swedish towns. Its purpose is to perform acts of civil disobedience with the primary mission to stop climate breakdown. These recordings were made at an action that took place in central Stockholm December the 9:th 2018.
Sound recorder: Fredrik Johansson
Photography and film: Fredrik Johansson
Sounds recorded at the sludge dewatering mixer. Fermented sludge following biogas production goes there. The dewatered sludge contains about 25% dry matter…
A Woodchipper is a machine used for reducing wood into smaller woodchips. Manufacturer: Andritz HQ-900 Horsepower: 4*400kW Number of revolutions: 249 rpm…
Container ship gantry crane is loading a container ship M/S Sandy Rickmers, flaged to Marshall Islands. Crane is made in 1996 by…
The overhead monorail, type GTW 72 (also known as the Wuppertal Suspension Railway), was built by Maschinenfabrik Augsburg- Nürnberg (MAN) in the…