| 纳滤膜处理含锰废水 |
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| 引用本文： | 李萌,朱彤,张翔宇,宋宝华,王中原,刘波.纳滤膜处理含锰废水[J].化工环保,2012,32(3):260-263. |
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| 作者姓名： | 李萌 朱彤 张翔宇 宋宝华 王中原 刘波 |
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| 作者单位： | 1. 中节能六合天融环保科技有限公司,北京,100085
2. 重庆武陵锰业有限公司,重庆,409912 |
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| 摘 要： | 采用纳滤膜处理电解锰生产过程中产生的含锰废水,考察了操作压力、阻垢剂和反冲洗等因素对膜通量和各金属离子截留率的影响。实验结果表明:操作压力越大,膜通量越大,且膜通量随运行时间延长下降得越快;在操作压力为2.0 MPa的条件下,纳滤膜对Mg2+的截留率为90.69%,对Mn2+的截留率为89.72%,对Ca2+的截留率最高,达100%;加入阻垢剂后,纳滤膜的膜通量比未加入阻垢剂时的膜通量略大;反冲洗4次后,膜通量均可完全恢复。
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| 关 键 词： | 纳滤膜 锰 膜通量 截留率 阻垢剂 反冲洗 废水处理 |
Treatment of Manganese-containing Wastewater Using Nanofiltration Membrane |
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| Li Meng
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Zhu Tong
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Zhang Xiangyu
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Song Baohua
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Wang Zhongyuan
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Liu Bo.Treatment of Manganese-containing Wastewater Using Nanofiltration Membrane[J].Environmental Protection of Chemical Industry,2012,32(3):260-263. |
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| Authors: | Li Meng Zhu Tong Zhang Xiangyu Song Baohua Wang Zhongyuan Liu Bo |
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| Institution: | 1.Liuhe Talroad Environmental Technology Co.Ltd.,CECIC,Beijing 100085,China;2.Chongqing Wuling Mn-industry Co.Ltd.,Chongqing 409912,China) |
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| Abstract: | The Mn2+-containing wastewater in electrolytic manganese production was treated using nanofiltration membrane.The factors affecting membrane flux and metal ion retention rates were studied.The experimental results show that:The greater the operating pressure is,the greater the membrane flux is,and the faster the membrane flux decreases with the extending of running time;When the operating pressure is 2.0 MPa,the retention rates of Mg2+,Mn2+ and Ca2+ can reach 90.69%,89.72% and 100% respectively;With the addition of scale inhibitor,the membrane flux is slightly larger;After 4 times of backwashing,the membrane flux can be renewed completely. |
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| Keywords: | nanofiltration membrane manganese membrane flux retention rate scale inhibitor backwashing wastewater treatment |
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