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投稿时间:2012-06-08 修订日期:2012-06-08 录用日期:2012-06-12 网络发布日期:2012-11-26
投稿时间:2012-06-08 修订日期:2012-06-08 录用日期:2012-06-12 网络发布日期:2012-11-26
中文摘要: 在常温条件下研究D113树脂吸附Mn(Ⅱ)的过程。结果表明,当溶液pH为6.5~7.0、吸附时间120 min时,废水中Mn(Ⅱ)离子去除率可以达到99%,吸附容量为136.98 mg/g。盐酸浓度为3~4 mol/L时,一次解吸率均达100%。该树脂对Mn(Ⅱ)的吸附曲线符合Langmuir和Freundlich吸附等温线,吸附交换过程符合HO准二级动力学方程式。内扩散系数随溶液pH、溶液中Mn(Ⅱ)浓度的增大而增大。
Abstract:The adsorption of D113 resin on Mn(Ⅱ) was investigated at room temperature. The results show that the removal rate of Mn (Ⅱ) in aqueous solution reaches 99% and the adsorption capacity of Mn (Ⅱ) is 136.98 mg/g on the conditions including the pH value of the aqueous solution of 6.5~7.0 and the adsorption duration of 120 min. The desorption rate of Mn (Ⅱ) reaches 100% when the concentration of hydrochloric acid is 3~4 mol/L. The adsorption curve of D113 resin on Mn (Ⅱ) agrees well with the Langmuir and the Freundlich isothermal adsorption equation, and the adsorption kinetic data well fit the HO pseudo-second-order rate equation. The internal diffusion coefficient increases with the rise of solution pH value and the concentration of Mn(II).
keywords: D113 resin Mn(Ⅱ) adsorption kinetics
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基金项目:
| 作者 | 单位 | |
| 宋秀玲 | 长安大学环境科学与工程学院 | songxl@chd.edu.cn |
| 刑建宇 | 长安大学环境科学与工程学院 | |
| 王春艳 | 长安大学环境科学与工程学院 | |
| 张彩峰 | 长安大学环境科学与工程学院 | |
| 钱会* | 长安大学环境科学与工程学院 | qianhui@pub.xaonline.com |
引用文本:
宋秀玲,刑建宇,王春艳,张彩峰,钱会.D113离子交换树脂对Mn(Ⅱ)的吸附性能[J].有色金属(冶炼部分),2012(12):13-15.
SONG Xiu-ling,XING Jian-yu,WANG Chun-yan,ZHANG Cai-feng,QIAN Hui.Adsorption Properties of D113 Ion-exchange Resin on Mn(Ⅱ)[J].Nonferrous Metals (Extractive Metallurgy),2012(12):13-15.
宋秀玲,刑建宇,王春艳,张彩峰,钱会.D113离子交换树脂对Mn(Ⅱ)的吸附性能[J].有色金属(冶炼部分),2012(12):13-15.
SONG Xiu-ling,XING Jian-yu,WANG Chun-yan,ZHANG Cai-feng,QIAN Hui.Adsorption Properties of D113 Ion-exchange Resin on Mn(Ⅱ)[J].Nonferrous Metals (Extractive Metallurgy),2012(12):13-15.

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