您的位置：首页 > 论文页面
纳滤膜降氟试验研究
发表时间：2010-09-15 浏览量：2226 下载量：816
| 全部作者： | 刘训东，宫景雯，杨宏伟 |
| 作者单位： | 清华大学环境科学与工程系；中国矿业大学（北京）化学与环境工程学院 |
| 摘 要： | 以自配高氟水为原水，研究压力、温度和浓度等因素对NF90型和NF270型纳滤(nanofiltration, NF)膜降氟效果的影响。结果表明：纳滤膜对F-的截留率随压力的增大而升高，在压力达到一定值后，截留率变化趋于平缓；膜通量随压力的增大而升高；对于NF270膜，随着温度的升高，F-的截留率有所下降；而对于NF90膜，温度对F-截留率的影响不明显；高氟水中F-的浓度对截留率以及膜通量的影响不大。 |
| 关 键 词： | 化学分离工程；纳滤；膜分离；饮用水；氟 |
| Title： | Study of fluorine removal by nanofiltration |
| Author： | LIU Xundong, GONG Jingwen, YANG Hongwei |
| Organization： | Department of Environmental Science and Engineering, Tsinghua University; School of Chemistry and Environmental Engineering, China University of Mining and Technology (Beijing) |
| Abstract： | The effects of pressure, temperature and concentration on the removal of fluorine from synthetic high-fluorine water by nanofiltration (NF) membranes (NF90 and NF270) were investigated. The results show that there is a corresponding increase of the fluorine retention rate with the increasing of pressure. But, when the pressure reaches a certain value, the fluorine retention rate changes flattening. The membrane flux increases with the increasing of the pressure. For NF270 membrane, the fluorine retention rate has a slight decline with the increasing of temperature; nevertheless, there is an insignificant effect for NF90 membrane. In high-fluorine water, the effects of fluorine concentrations on the fluorine retention rate and membrane flux are little. |
| Key words： | chemical separation engineering; nanofiltration; membrane separation; drinking water; fluorine |
| 发表期数： | 2010年9月第17期 |
| 引用格式： | 刘训东，宫景雯，杨宏伟. 纳滤膜降氟试验研究[J]. 中国科技论文在线精品论文，2010，3（17）：1771-1775. |
1
评论数 0请您登录
暂无评论
下载全文
多维论文