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Integrated Engineering Services for Nuclear Decommissioning

As part of the decommissioning of Hunterston A site, the client required treatment and safe discharge of active existing effluents. Boulting were subcontracted to provide mechanical, electrical and instrumentation services to Costain enabling the treatment and discharge of the cartridge cooling pond effluent.

Installation of five plant modules, weighing up to 33 tonnes.

Boulting were responsible for the installation and shielding of the five plant modules. The modules were inspected and pre checked by Boulting prior to transport the expedite speed of installation. With a responsibility for installing the modules on site, careful planning and safety considerations were always paramount for the team. As the largest module weighed some 33 tonnes, 750 and 200 tonne cranes were used to lift and tail it into place. The fabrication and encasement with thick, overlapping steel shielding plates was installed in situ by Boulting for all modules.

Fabrication and installation of pipework with electrical services for seamless integration.

In addition, Boulting fabricated and installed the pipework from the process pale pond to the modules across the existing pipe bridge. All associated cable support systems were also fabricated and installed, enabling the five modules to be interlinked. Process skids were manufactured off site at Boulting workshop for efficiency. The Boulting team completed the interconnection for the electrical, instrumentation and mechanical services to allow reintegration of the modules quickly and effectively.

Flexible project planning for cost effective implementation

Boulting worked closely with the construction management team at Costain to ensure that the on-site installation was efficient and minimise the duration of personnel working in a radiological controlled area. With a large labour resource, Boulting’ s flexibility ensured that appropriate skills sets and resources were available at the right time to fit with schedules for the project phases.

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