High-efficient separation and recovery of harmful metal ions using magnetic electroactive ion exchange particles

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06532
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Hirosaki University
• Principal Investigator: GUAN Guoqing 弘前大学, 北日本新エネルギー研究所, 教授 (90573618)
• Co-Investigator(Kenkyū-buntansha): 阿布 里提 弘前大学, 理工学研究科, 教授 (70565374)
• Co-Investigator(Renkei-kenkyūsha): KUSAKABE Katsuki 崇城大学, 工学部ナノサイエンス学科, 教授 (30153274)
• Research Collaborator: HAO Xiaogang
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 磁性電気活性粒子 / イオン分離 / 吸着 / 脱着 / 連続分離回収システム

Outline of Final Research Achievements

In this study, magnetic electroactive ion exchange particles with uniform sizes were synthesized and used for continuous separation and recovery of target metal ions such as cesium ions in a designed compacted electro-maganetic experimental equipment. The experimental conditions for continuous adsorption/ desorption of the target metal ions were optimized by investigating the effects of the initial concentration of target metal ions, the initial concentrations of coexisting ions, the amount of magnetic particles, the applied voltage and the electrode distance on the separation efficiency to the target cesium ion. In addition, the adsorption/desorption mechanism of magnetic electroactive particles for the target metal ions was clarified. Further, the recycle stability when repeatedly used was examined. Furthermore, a target metal ion continuous separation recovery system that can be put to the practical use was constructed theoretically.

Free Research Field

工学