Dismantling of the Winfrith Steam Generating Heavy Water Reactor (SGHWR)
3 December 2010

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The video illustrates the first phase of dismantling of the the SGHWR, a 100 MWe reactor which was in commercial operation from 1968-1990. The first phase of decommissioning, from April 2005 to April 2007, involved the removal of redundant equipment from approximately 250 rooms, which were then decontaminated. Several large items of plant, such as the reactor refuelling machine, the steam turbine and alternator and the high pressure emergency cooling tank, were also removed. The redundant equipment and materials were segmented and packed in disposal containers destined for emplacement in the UK low level waste disposal facility. A brief overview of the remaining phase of work, involing the removal of the primary circuit components and ultimate remediation of the site to greefield conditions is also given.