The Aarburg wastewater treatment plant (WWTP) was commissioned in 1972. After around 50 years of operation, the plant reached its capacity limits and the biological treatment stage required expansion.
The following structures and installations were replaced, renovated, converted or expanded:
- Replacement construction of the biological treatment stage using the SBR process
- Conversion of existing anoxic tanks into equalisation tanks, with influent feed pumping station
- Replacement of the influent flow measurement system
- Control and process control system for the SBR operation
Our tasks
- Preliminary studies, Phase 2
- Preliminary design, Phase 31, including process selection (SBR process)
- Detailed design, Phase 32
- Permitting procedure / public project tendering, Phase 33
- Tendering / implementation, Phases 41–53
In each case we did overall project management, including overall site supervision, process engineering, and electro-mechanical equipment, plus:
- Hydraulics, including CFD simulations of selected components
- Stress and structural analysis of selected components
- Environmental Impact Assessment (EIA)
- Soil protection and material recovery/reuse concept
- Oxygen transfer test
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