Strategic Guidance on the Management of LLW and ILW / LLW ...
Strategic Guidance on the Management of LLW and ILW / LLW ...
Strategic Guidance on the Management of LLW and ILW / LLW ...
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<strong>LLW</strong> Repository LtdNati<strong>on</strong>al Waste ProgrammeNWP/REP/011Issue 2.1 – Jan 2013Page 40 <strong>of</strong> 585.2.10. Direct Disposal to Low Level Waste Repository (<strong>LLW</strong>R)Usage<strong>LLW</strong>Surface c<strong>on</strong>taminatedVolumetricallyc<strong>on</strong>taminatedActivatedAluminiumCopperMild steelMild steel (coated)Stainless steelStainless steel (coated)Descripti<strong>on</strong> <strong>of</strong> techniqueWaste metal is characterised, size reduced (as required) <strong>and</strong> packed into appropriate ISO disposalc<strong>on</strong>tainers. Size reducti<strong>on</strong> / compacti<strong>on</strong> etc. is used to ensure that inaccessible voidage within <strong>the</strong> disposalc<strong>on</strong>tainer is minimised as far as practicable. Additi<strong>on</strong>al <strong>LLW</strong> may be added to <strong>the</strong> c<strong>on</strong>tainers to ensure bestuse <strong>of</strong> <strong>the</strong> disposal volume. These are transferred by rail or by road to <strong>the</strong> Low Level Waste Repository(<strong>LLW</strong>R) site in Cumbria, filled with cementitious grout <strong>and</strong> are <strong>the</strong>n transferred into an engineered vault fordisposal.Specific restricti<strong>on</strong>s relating to (but not limited to) waste type, radiological characteristics (total activity, fissilec<strong>on</strong>tent, radiati<strong>on</strong>, c<strong>on</strong>taminati<strong>on</strong>), waste mass <strong>and</strong> voidage are specified in <strong>the</strong> waste acceptance criteria(WAC) for <strong>the</strong> facility.Outcomes Advantages Disadvantages• Waste disposed <strong>of</strong> at <strong>LLW</strong>R.• Sec<strong>on</strong>dary waste – solid wastes from sizereducti<strong>on</strong> (e.g. diam<strong>on</strong>d wire), waste grout.• Relatively simple.• Applicable to widerange <strong>of</strong> metal types.• Applicable to wideactivity range (up todefiniti<strong>on</strong> <strong>of</strong> <strong>LLW</strong> in<strong>LLW</strong>R WAC).• Uses up valuablewaste disposalcapacity at a nati<strong>on</strong>alasset (<strong>LLW</strong>R).• Reduces opportunityfor re-use <strong>and</strong> recycle<strong>of</strong> waste.Technique used at:A company owned by UK Nuclear Waste <strong>Management</strong> LtdNOT PROTECTIVELY MARKED
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