文献类型：期刊文献

英文题名：Treatment of simulated liquid radioactive waste containing cobalt by in-situ co-precipitation of Zn/Al layered double hydroxides

作者：Huang, Guangtuan[1];Shao, Lifeng[1];He, Xiaohong[1];Jiang, Li[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2019

卷号：319

期号：3

起止页码：847

外文期刊名：JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY

收录：;EI(收录号：20242616377705);WOS:【SCI-EXPANDED(收录号:WOS:000460148500019)】；

语种：英文

外文关键词：LDHs; Cobalt; Liquid radioactive wastes; In-situ co-precipitation

摘要：This paper reports a new approach to treat the cobalt containing wastewater by in situ co-precipitation of Zn/Al layered double hydroxides (LDHs). LDHs with various metal compositions were characterized by XRD, and their capabilities to remove Co2+ were examined. Zn/Al system was found to be the best Co-removing LDHs system, which could remove Co2+ at the highest efficiency (>99.99%). Reaction parameters of Zn/Al-LDHs were further optimized. The analysis of products found that Co2+ were removed in the form of Co4.8Zn1.2Al2(OH)(16)CO(3)4H(2)O. This study suggests that in situ co-precipitation Zn/Al-LDHs provides an effective approach to treat liquid radioactive wastes containing Co2+ from nuclear power plant.