Henriksdals reningsverk
One of the world's most advanced treatment plants is being developed in Henriksdal. To address a growing population and higher environmental requirements, new membrane technology has been used to optimize the treatment of Stockholm's wastewater. YIT has served as the main contractor in the extensive waste project.
Client
Stockholm Vatten AB
Project type
Construction, Tunnel
Time frame
2018 - 2023
Contract
Construction Contract
Location
Stockholm
Roll
Surveying Engineer, Quantity Surveyor for Main Contractor
Scope
18 km of Tunnels
Value
SEK 650 million
Roll
In this project, Lazar Radojevic served as surveying engineer and quantity controller for the project's main contractor YIT.
Work above and below ground
Henriksdal's treatment plant is Sweden's largest sewage treatment facility, processing wastewater from approximately 780,000 people around Stockholm. The plant is mostly embedded in the rock, but the expansion has included different types of tasks involving both above-ground and underground work.
Tasks involved in the project:
- Equipping spaces for technical equipment
- Concrete and masonry work
- Steel assembly
- Earthworks
- Renovation and reconstruction of two digesters
- Renovation and reconstruction of two sludge tanks
- Construction of an associated building
- Construction of six large dry sludge silos for sludge handling
Sludge management
The main focus of the project was the sludge management of the wastewater treatment plant. The work involved building six 260 m³ dry sludge silos in a rock shaft, as well as a building above the shaft. Concrete work was also carried out in two large rock chambers for a future sludge thickening facility.
Manage operational challenges
The execution of the work was carried out while the wastewater treatment plant was running, which posed great challenges. In addition to the high complexity of the project, this had to be constantly taken into account to ensure the smooth operation of the facility.
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