| 纳滤膜去除卡马西平的影响因素研究 |
| 摘要点击 2184 全文点击 1700 投稿时间：2010-04-08 修订日期：2010-07-22 |
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| 中文关键词 纳滤 卡马西平 膜通量 去除率 水处理 |
| 英文关键词 nanofiltration carbamazepine (CBZ) membrane flux removal efficiency water treatment |
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| 中文摘要 |
| 主要研究了纳滤膜去除饮用水中卡马西平（CBZ）的影响因素.首先比较了膜NF270和NF90去除CBZ的效果，发现孔径较小的NF90对CBZ的去除效果远优于孔径较大的NF270.其次考察了CBZ初始浓度、pH值、离子强度和水温对去除率的影响.结果表明，pH值的降低，钙离子浓度的提高以及水温的提高会导致CBZ去除率的降低.初始浓度在50～500 μg/L范围的变化不会对膜通量和CBZ的去除造成显著影响.试验表明，筛分是纳滤膜去除不带电荷的CBZ的作用机制. |
| 英文摘要 |
| The influence factors on removal of carbamazepine (CBZ) in drinking water by nanofiltration membrane was mainly investigated.The effect of CBZ removal by NF270 and NF90 was firstly compared and found that removal efficiency by NF90 with small pore size showed more effectively than removed by NF270 with large pore size.The next experiment focused on the effect of various factors on removal with respect to CBZ initial concentration,pH,ionic strength and water temperature．The results showed that removal efficiency reduced with decreased pH and increased Ca2+ concentration and water temperature.The effect of initial concentration in the range of 50-500μg/L on flux and CBZ removal was insignificant.It can be concluded that the retention of non-ionic CBZ by loose NF membrane was strongly dependent on the mechanism of steric (size) exclusion. |
