A combination of drilling techniques could save billions in storage costs. The UK's inventory of high-level waste from fuel reprocessing could be disposed of in seven boreholes averaging 4.85km depth spread over an area less than three football pitches. This is the claim of Sheffield University's Prof Fergus Gibb who has co-authored a study that sets out a design for a new way of permanently disposing of high-level radioactive waste deep underground in boreholes.
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