错流式减压膜蒸馏海水淡化试验研究  

Experimental Study on Cross-flow Vacuum Membrane Distillation Based Seawater Desalination

作　　者：王宏涛[1] 李保安[1] 王丽[1] 王纪孝[1] 冯亚凯[1] 

机构地区：[1]天津大学化工学院化学工程联合国家重点实验室(天津大学)天津市膜科学与海水淡化技术重点实验室,天津300072

出　　处：《化学工业与工程》2010年第2期183-188,共6页Chemical Industry and Engineering

基　　金："十一五"国家科技支撑计划项目(2006BAB03A06);天津市科技支撑项目(08ZCKFSH02200)

摘　　要：采用聚丙烯(PP)中空纤维膜制作了矩形中空纤维膜组件进行减压膜蒸馏海水淡化试验,考察了不同操作条件对膜通量的影响以及膜通量的衰减和膜污染情况,探讨了海水膜蒸馏的操作条件-膜通量曲线的特征。试验过程中获得了比较高的膜通量,最高膜通量达到了46 kg/(m2.h),产水电导率保持在100μS/cm以下,过程的脱盐率保持在99.99%以上。Polypropylene （PP） hollow fiber membrane was used to make a rectangular hollow fiber membrane module for experimental study of vaeuum membrane distillation based seawater desalination. The influences of operating conditions on membrane flux, the decade of membrane flux and membrane fouling were studied in the paper. And the curve characteristics of membrane flux with the operating conditions were explored. High membrane fluxes were obtained, and the maximum one reached 46 kg/（m2. h）. The conductivity of fresh water was not higher than 100 μS/cm which indicated that the process desalination rate was higher than 99.99% during the experiment.

关 键 词：减压膜蒸馏 中空纤维膜 海水淡化膜通量 

分 类 号：TQ085.4[化学工程]