| NaCl-MnO2联合改性沸石对水中Zn2+的动态吸附 |
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| 引用本文： | 朱友利,施永生,龙滔,王琳. NaCl-MnO2联合改性沸石对水中Zn2+的动态吸附[J]. 材料导报, 2011, 0(Z1): 448-450 |
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| 作者姓名： | 朱友利 施永生 龙滔 王琳 |
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| 作者单位： | 昆明理工大学建筑工程学院;云南省建设厅; |
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| 摘 要： | 研究了NaCl-MnO2改性沸石填料柱对水中Zn2+的动态吸附性能。探讨了填料厚度、Zn2+的初始质量浓度和流速对穿透曲线的影响。结果表明,NaCl-MnO2改性沸石能有效去除水中的Zn2,填料层增厚,穿透曲线上的穿透点向右移动,穿透时间延长;而流速、Zn2+的初始浓度增大,穿透曲线上的穿透点向左移动,穿透时间缩短;用Thomas模型描述Zn2+初始质量浓度为50mg/L、滤速为4mL/min时改性沸石对Zn2+的吸附动力学,相关系数为0.9994,平衡吸附容量为12.04mg/g。
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| 关 键 词： | NaCl-MnO2改性沸石 Zn2+ 动态吸附 穿透曲线 |
Zn~(2+) Removal from Aqueous Solution by Modified-zeolite by NaCl-MnO_2 in Fixed-bed Column |
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| ZHU Youli,SHI Yongsheng,LONG Tao,WANG Lin. Zn~(2+) Removal from Aqueous Solution by Modified-zeolite by NaCl-MnO_2 in Fixed-bed Column[J]. Materials Review, 2011, 0(Z1): 448-450 |
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| Authors: | ZHU Youli SHI Yongsheng LONG Tao WANG Lin |
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| Affiliation: | ZHU Youli~1,SHI Yongsheng~1,LONG Tao~2,WANG Lin~1 (1 Institute of Architectural Engineering,Kunming University of Science and Technology,Kunming 650500,2 The Construction Department of Yunnan Province,Kunming 650224) |
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| Abstract: | The capability of modified-zeolite by NaCl-MnO_2 to adsorb Zn~(2+) from aqueous solution was investigated in a fixed-bed column.The effects of the filler thickness,the flow rate and the initial Zn~(2+) concentration on breakthrough curve were studied.The results show that modified-zeolite by NaCl-MnO_2 as an adsorbent to remove Zn~(2+) from solution is efficient.When the filler thinkness increasing,the breakthrough point in the breakthrough curves move to right,suggesting the extension of breakthrough time.... |
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| Keywords: | modified-zeolite by NaCl-MnO_2 Zn~(2 ) column adsorption breakthrough curve |
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