期刊论文

Adsorption Mechanism of Uranium of Immobilizing Activated Carbon

中文

金属矿山

1001-1250

2016

2

172-175

10.3969/j.issn.1001-1250.2016.02.038

U1401231:国家自然科学基金 11505093:国家自然科学基金 51574152:国家自然科学基金 13C800:教育厅项目 2013KS31:衡阳市科技局项目 201412:南华大学创新训练中心项目 201422:南华大学创新训练中心项目 201501:南华大学创新训练中心项目 NHCXTD04:南华大学创新团队项目

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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p H=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。

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 ...