化工学报Issue(10)：4000-4006,7.DOI:10.11949/j.issn.0438-1157.20150105
新型气隙式膜蒸馏组件脱盐过程
New air gap membrane distillation module for desalination
张春尧 1耿洪鑫 2郎庆成 1李凭力 2武晓燕3
作者信息
- 1. 天津大学化工学院，天津300072
- 2. 天津市膜科学与海水淡化技术重点实验室，天津300072
- 3. 中华全国供销合作总社天津再生资源研究所，天津 300191
- 折叠
摘要
Abstract
A new air gap membrane distillation module based on hollow fiber with energy recovery was developed for desalination using 70 g·L−1 NaCl solution as the feed. The effects of membrane module length and membrane pore size were investigated. For measuring directly the effects of operating conditions, membrane module properties, and temperature and concentration polarization on the mass transfer coefficient, the total mass transfer coefficient was introduced. The effects of membrane pore size, feeding temperature and feeding flow rate were studied. The results showed that the total mass transfer coefficient increased with the increase of membrane pore size and feeding temperature. The membrane flux and gained-out put ratio were increased effectively with increasing membrane pore size. Since increasing membrane module length would reduce the membrane flux while enhance the gained-out put ratio, the membrane flux and gained-out put ratio should be considered comprehensively for selection of the appropriate membrane module length in the application process.关键词
气隙式膜组件/膜蒸馏/脱盐/传质Key words
air gap membrane module/membrane distillation/desalination/mass transfer分类
化学化工引用本文复制引用
张春尧,耿洪鑫,郎庆成,李凭力,武晓燕..新型气隙式膜蒸馏组件脱盐过程[J].化工学报,2015,(10):4000-4006,7.
