Caissons and enclosures

Whenever there is a higher risk of contamination, works are carried out in caissons and enclosures. They are therefore usually operated with separate ventilation systems. Within an enclosure, for example, dismantling work is carried out on building structures if a high dust generation is to be expected. Within a caisson, for example, the dismantling or decontamination of radioactive waste takes place.

Equipment

  • Transport trolleys and bridge cranes

  • Equipment for dry and wet decontamination (also high-pressure water)

  • Media preparation (e.g. waste water treatment and blasting media preparation)

  • Floor pits with connected waste water collection

  • Ultrasonic cleaning and small parts washing stations

  • Compressed air generation

  • Monitoring and radiation protection windows

  • Manipulator workstations

  • Airlocks (e.g. double-lid and small parts airlocks)

  • Personnel airlocks with changing and shower areas

  • Ventilation technology

  • Electrical, control and measurement technology

  • Lighting, audio and video technology

  • Plant control and monitoring

  • Explosion-proof design, if necessary

Scope of services

  • Concept, design and licensing planning

  • Basic and detail engineering including 3D planning

  • Construction and manufacturing planning

  • Material procurement

  • Manufacturing, delivery and assembly

  • Commissioning and staff training

  • Quality assurance and final documentation

References

  • Stainless steel caisson for treatment of nuclear waste for Nuclear Engineering Seibersdorf

  • Decontamination shop in caisson design for the Krümmel nuclear power plant

  • Airlock caisson for the MZFR facility of the Karlsruhe Nuclear Waste Disposal Center (KTE)

  • Planning and preparation of tender documents for the hall caisson for the decommissioning step RB 5.4 in the Karlsruhe reprocessing plant

  • Design and preparation of tender documents for a caisson for the decommissioning of the biological shield of the Karlsruhe compact sodium-cooled nuclear reactor

  • Design, manufacturing, delivery, assembly, commissioning and personnel training for a wet decontamination caisson at the Mühleberg nuclear power plant, Switzerland