Page 182 - Beyond Decommissioning

Experience and lessons learned 163

following de-planting, the large spaces of the turbine building are often used as interim
radioactive waste stores during decommissioning (Fig. 6.10).
One such case is the adaptation of Turbine Building for the decommissioning of
Jose Cabrera NPP, Spain. Firstly, the turbine and its auxiliary systems were disman-
tled, and the building was reused as a Decommissioning Auxiliary Building (DAB).
The purpose of the DAB was to treat and condition the radioactive waste coming from
dismantling activities inside the containment building: to this end the waste was trans-
ferred through a tunnel linking the two enclosures. The turbine building is equipped
with a decontamination workshop, radioactive waste conditioning facilities, and areas
for interim storage of waste containers, before they are shipped to the low- and
medium- level waste disposal center at El Cabril (NEI, 2013). Details of the building
conversion are given in Nieves and Ondaro (2013).
At Greifswald NPP site, waste and materials handling is an essential component of
decommissioning. Various waste and materials management (i.e., storage, condition-
ing, and packaging) stations are required. To this end, former auxiliary buildings were
converted: for example, the former spare parts store was reutilized as a free release
center and the former warm workshop was turned into a new treatment and decontam-
ination center (IAEA, 2011). Fig. 6.11 shows the equipment used for measuring waste
drum inventories: it is located within the material release building, formerly a
mechanical workshop.
2
A huge space, covering 35 m in Hinkley Point NPP’s de-planted Turbine Hall, was
reused for the De-planting Mock-up Simulator (DMS) from November 2007 on.

Fig. 6.10 NRC Chairman Stephen Burns (right) examines the turbine building of Darlington
NPP, ON, Canada.
Courtesy of NRC.