某铀矿废渣固化体的浸出特性研究  

Leaching Characteristics of Solidified Body of Uranium Waste

作　　者：刘辰[1] 蒋宇红[1] 周磊[1] 徐乐昌[1] LIU Chen;JIANG Yu-hong;ZHOU Lei;XU Le-chang(Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China)

机构地区：[1]核工业北京化工冶金研究院

出　　处：《铀矿冶》2019年第4期303-306,共4页Uranium Mining and Metallurgy

基　　金：核设施退役与放射性废物治理专项(科工二司[2018]1251号)

摘　　要：为研究某铀矿废渣固化体在长期侵蚀条件下的浸出特性,开展了不同浸出剂、浸出时间对2种固化体中重金属离子、总α、238 U浸出行为的影响研究。结果表明,2种固化体在中性与酸性条件下都能够较好地稳定其所固化的重金属离子、总α和238 U,其浸出毒性远小于国家相关标准。In order to research on the leaching characteristics of a solidified body of uranium waste at long term erosion condition,different leaching agent and leaching time tests are carried out for 2 kinds of solidified body of uranium waste to study its influence of leaching performance of heavy metals,totalαand 238 U.The results show that 2 kinds of solidified body of uranium waste can stabilize the heavy metal ions,totalαand 238 U under neutral and acidic conditions and the leached toxicity is far less than that of the national standard.

关 键 词：铀矿 废渣 固化 浸出特性 

分 类 号：TL941[核科学技术—辐射防护及环境保护] X753[环境科学与工程—环境工程]