Advantages Hot Isostatically Pressed Ceramic and Glass-Ceramic Waste Forms Bring to the Immobilization of Challenging Intermediate- and High-Level Nuclear Wastes
Advantages Hot Isostatically Pressed Ceramic and Glass-Ceramic Waste Forms Bring to the Immobilization of Challenging Intermediate- and High-Level Nuclear Wastes
复制标题
热等静压陶瓷和玻璃陶瓷废料形式为具有挑战性的中高放核废料固定化带来的优势
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发表时间：
2010
期刊：
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通讯作者：
M. Carter
中科院分区：
文献类型：
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作者：
E. Vance;S. Moricca;B. D. Begg;M. Stewart;Y. Zhang;M. Carter
热等静压(HIP)是一种具有广泛适用性的技术，用于固结焙烧的中级和高级核废料，特别是对于那些在合理的废料装载量下不容易通过玻璃化处理的废料。将概述髋关节周期中的基本过程步骤。我们已经展示了通过热等静压技术有效地固结各种量身定制的微晶玻璃和陶瓷废物形式，特别是模拟ICPP废物煅烧，I吸附在沸石珠子上，含Pu的废物，非活性Cs/Sr/Rb/Ba混合物，模拟废核燃料回收的废热处理盐，富Tc，U的同位素生产废物，以及模拟K盆地(华盛顿州汉福德，美国)和Magnox污泥(英国)。人们已经仔细研究了CaN-陶瓷之间的相互作用。热等静压技术的主要优势包括：高温固结过程中的废气可以忽略不计，占地面积相对较小，以及高废物负荷。作为一种间歇工艺，废物形态的化学成分可以很容易地在给定的流水线上进行调整，以将废物输送到不同的最终状态(例如，直接热等静压与化学定制)。这种灵活性允许在一条流水线上处理多个废流。
Hot isostatic pressing (HIP) is a technology with wide applicability in consolidating calcined intermediate-level and high-level nuclear waste, especially with wastes that are not able to be readily processed by vitrification at reasonable waste loadings. The essential process steps during the HIP cycle will be outlined. We have demonstrated the effective consolidation via HIP technology of a wide variety of tailored glass-ceramic and ceramic waste forms, notably simulated ICPP waste calcines, I sorbed upon zeolite beads, Pu-bearing wastes, inactive Cs/Sr/Rb/Ba mixtures, simulated waste pyroprocessing salts from spent nuclear fuel recycling, Tc, U-rich isotope production waste, and simulated K-basin (Hanford, WA, USA) and Magnox sludges (UK). Can-ceramic interactions have been carefully studied. The principal advantages of the HIP technology include: negligible offgas during the high temperature consolidation step, relatively small footprint, and high waste loadings. As a batch process, the wasteform chemistry can be readily adjusted on a given process line, to deliver wastes into different end states (e.g. direct HIP versus chemically tailored). This flexibility allows the treatment of multiple waste streams on the one process line.