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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Immobilization of uranium-contaminated soil into glass waste by microwave sintering: Experimental and theoretical study
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Immobilization of uranium-contaminated soil into glass waste by microwave sintering: Experimental and theoretical study

机译：微波烧结固定铀污染土壤玻璃废物：实验与理论研究

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To dispose of uranium-contaminated soil, the microwave sintering technology was used. A series of uraniumcontaminated soils were successfully immobilized via microwave sintering for 30 min. When the amount of uranium ranges from 0 wt % to 1 wt %, glass phase occurred in saline-alkali soil, purple soil and red soil, while glass with presence of a crystalline phase occurred in yellow soil. The FT-IR analysis showed that the uraniumcontaminated soils were mainly consist of [SiO4] units. The Q(n) distribution of Si-O tetrahedrons and network connectivity of 1 wt % uranium doped sintered soils were related to the composition of soils. The uranium ions were almost immobilized and evenly distributed in sintered soils. Theoretical results showed that the structures of uranium doped sintered soils were made of STO, Al-O and Fe-O tetrahedrons. The O-Si-O linkage was the most preferred one among all linkages and the network forming ability of Si was higher than Al.
机译：为了处理铀污染土壤，采用了微波烧结技术。通过微波烧结30分钟成功地固定了一系列含铀胺化土壤。当铀含量在0%到1%之间时，盐碱土、紫色土和红壤中出现了玻璃相，而黄壤中出现了含有晶相的玻璃。FT-IR分析表明，铀矿化土壤主要由[SiO4]单元组成。掺铀烧结土壤中Si-O四面体的Q（n）分布和网络连通性与土壤成分有关。铀离子在烧结土壤中几乎被固定并均匀分布。理论结果表明，掺铀烧结土的结构由STO、Al-O和Fe-O四面体组成。在所有连杆机构中，O-Si-O连杆机构是首选连杆机构，且Si的网络形成能力高于Al。

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