ITER NEWSLINE
50
Dealing with storage and treatment
Sabina Griffith
Dealing with storage and treatment
The Low-Level Radwaste Facility (LLRWF) houses various processes regarding both low-level liquid and solid radioactive waste generated from various ITER process systems. The current configuration for the LLRWF is based on the 2001 design and proposed as follows:
-Basement: dedicated for the storage (in tanks) and treatment of contaminated liquids and resins;
-Ground level: dedicated to solid waste including storage before and after treatment, treatment, packaging and a special area for the mobile unit. This floor also includes a hot chemical and radiological laboratory.
Upper level: dedicated to technical utilities. This facility includes sufficient storage capacity for both liquid and solid waste to ensure that the operation of the ITER facility is not affected by the removal of waste generated by operations and maintenance.
In order to freeze the design and layout of this building, two meetings were organized recently: A first two days workshop 10/11 September allowed the European Domestic Agency "Fusion for Energy" (F4E) and the ITER Organization to review the input data as well as the requirements for this facility, and to then assess impacts on layout and design. The main outcome of fruitful discussions was an impressive reduction in the amount of liquid and solid waste based on robust assumptions. This enabled a preliminary layout to be drafted last week that could meet the 2001 envelope for the building size.
Secondly a design briefing meeting was held in the frame work of the pre A&E activities last week. This enabled the radwaste building to be included in the pre A&E activities. Now the IO team is carrying out consolidation and optimization work to check that the full chain of storage and treatment can meet the ITER waste management requirements.
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