【日本((原子力工业》1981年第3期报道】有人认为,把美国几个铀浓缩厂的金属切屑作为放射性废物埋在地下是很不应该的。如果采取有效的方式加以回收利用,其价值将达到4,100万美元。现在这几个工厂有大量的钢、铜、镍和铝的切屑,在这些切屑中含有低浓铀和锝-99。此外,美国在 [Japan ((Atomic Force Industry), No. 3, 1981) Some people think that it is not appropriate to bury metal swarf from several U.S. uranium enrichment plants underground as radioactive waste. If it is recycled in an effective way, its value It will reach US$41 million, and now these plants have a large amount of steel, copper, nickel and aluminum chips containing low enriched uranium and thorium-99 in these chips.