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首页> 外文会议>Fifth International Conference on Ion Exchange Processes held on 5-9 July 1998 at Plas Coch College, The North East Wales Institute, Wrexham, UK >Inorganic ion exchange materials for the removal of strontium from simulated hanford tank wastes
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Inorganic ion exchange materials for the removal of strontium from simulated hanford tank wastes

机译：用于从模拟汉福德槽废料中去除锶的无机离子交换材料

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摘要

Over the last 50 years, large amounts of aqueous high level radioactive wastes (HLW) have been produced at the Hanford nuclear site in WAshington State as a result of chemical extraction processes designed to separate ~(239)Pu from irradiated uranium fuel. At present, the HLW is stored in 177 steel-lined tanks and has an estimated volume of approximately 65 million gallons. The composition of the waste varies considerably from tank to tank, but previous studies have shown that all of the tanks are believed to contain three distinct phases~1, which consist of a salt cake at the top of the tank, an alkaline supernate and a metal hydroxide-rich sludge at the bottom. In these wastes, strontium predominantly occurs in the sludges but is also found entrained within the salt cake and in the alkaline supernate.
机译：在过去的50年中，由于化学提取工艺旨在从辐射铀燃料中分离〜（239）Pu，因此在华盛顿州汉福德核电站的汉福德核电站产生了大量含水高放射性废物（HLW）。目前，高放废物储存在177个带钢衬里的坦克中，估计容量约为6500万加仑。废物的组成因槽而异，但以前的研究表明，所有槽都包含三个不同的相〜1，由槽顶部的盐饼，碱性上清液和底部富含金属氢氧化物的污泥。在这些废物中，锶主要存在于污泥中，但也夹带在盐饼和碱性上清液中。

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