Nuclear wastes to be buried in the proposed repository underneath Yucca Mountain, Nevada, may produce colloids and contribute to the release of radioactivity from the repository. As a component of non-commercial nuclear fuels slated for disposal, aluminium-based fuels may release the colloids during aqueous corrosion. This paper reports on the characterization of such colloids, which are predominantly clays > 100 nm. Colloid concentrations never exceeded 8 x 10(11) particles/L, which is well within the range of values used in the repository release models. These colloids carry 99% of the released uranium and highlight the potential importance of the colloid phase in determining radionuclide transport from the uranium-aluminium fuels. (c) 2005 Elsevier B.V. All rights reserved.
展开▼
机译：将被埋在内华达州尤卡山下的拟建储存库中的核废料可能产生胶体，并有助于从储存库释放放射性。作为预定要处置的非商业核燃料的组成部分，铝基燃料可能在水腐蚀期间释放胶体。本文报道了这类胶体的表征，这些胶体主要是粘土> 100 nm。胶体浓度从未超过8 x 10（11）颗粒/ L，这完全在存储库释放模型中使用的值范围内。这些胶体携带了99％释放的铀，并突出了胶体相在确定铀铝燃料中放射性核素迁移中的潜在重要性。 （c）2005 Elsevier B.V.保留所有权利。
展开▼
