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金属矿山 ›› 2016, Vol. 45 ›› Issue (02): 172-175.

• 安全与环保 • 上一篇    下一篇

固定化活性炭吸附铀(Ⅵ)试验

喻清1,2,3,丁德馨2,3,李登科1,2,3,余园平2,3,罗艺2,3,王启方2,3   

  1. 1.中南大学资源与安全工程学院,湖南 长沙 410083;2.南华大学核资源工程学院,湖南 衡阳 421001;3.铀矿冶生物技术国防重点学科实验室,湖南 衡阳 421001
  • 出版日期:2016-02-15 发布日期:2016-03-11
  • 基金资助:

    * 国家自然科学基金重点项目(编号:U1401231),国家自然科学基金项目(编号:11505093,51574152),湖南省教育厅项目(编号:13C800),衡阳市科技局项目(编号:2013KS31),南华大学创新训练中心项目(编号:201412,201422,201501),南华大学创新团队项目(编号:NHCXTD04)。

Adsorption Mechanism of Uranium of Immobilizing Activated Carbon

Yu Qing1,2,3,Ding Dexin1,2,3,Li Dengke2,3,Yu Yuanping2,3,Luo Yi2,3,Wang Qifang2,3   

  1. 1.School of Resources and Safety Engineering,Central South University,Changsha 410083,China;2.School of Nuclear Resources Engineering,University of South China,Hengyang 421001,China;3.Key Discipline Laboratory of Defense Biotechnology in Uranium Mining and Hydrometallurgy,Hengyang 421001,China
  • Online:2016-02-15 Published:2016-03-11

摘要: 为探索海藻酸钠包埋法制备的固定化活性炭微球对铀(Ⅵ)的吸附效果,进行了固定化活性炭微球吸附铀(Ⅵ)试验。结果显示:在溶液初始pH=5.0、铀(Ⅵ)初始浓度为0.4 mg/L、固定化活性炭微球投加量为0.7 g/L时,反应6 h可以达到吸附平衡,此时铀(Ⅵ)吸附量为1.7 mg/g、吸附率为84.50%。对铀吸附机理的探讨表明,固定化活性炭微球对铀的吸附行为符合Langmuir等温线模型和准二级动力学模型。

关键词: 固定化活性炭微球, 吸附, 铀(Ⅵ)

Abstract: To find the effects of immobilizing activated carbon made by activated carbon and Na-alginate as embedding agents biosorption performances on U(Ⅵ),biosorption experiment was conducted on immobilizing activated carbon biosorption on U(Ⅵ).Results showed that at the solution initial pH=5.0,initial concentration of uranium is 0.4 mg/L,the adsorbent dosage is 0.7 g/L,adsorption equilibrium will obtained for 6 h,uranium adsorption quantity is 1.7 mg/g,uranium adsorption rate is 84.50%.Research of adsorption mechanism revealed that the adsorption of U(Ⅵ) by immobilized activated carbon fixes the Langmuir model and pseudo-second dynamics model.

Key words: Immobilizing activated carbon micro-ball, Adsorption, Uranium(Ⅵ)