聚丙烯平板微孔膜膜蒸馏海水淡化研究  

SEAWATER DESALINATION BY VMD WITH IPP FLAT SHEET MICROFILTRATION MEMBRANES MODULE

作　　者：唐娜[1] 马敬环[1] 

机构地区：[1]天津科技大学海洋学院,天津300457

出　　处：《水处理技术》2006年第6期5-7,共3页Technology of Water Treatment

基　　金：天津市自然科学基金资助项目(06YFJMJC04000)

摘　　要：采用热致相分离法制备了聚丙烯平板微孔膜,并对自制平板膜组件的膜蒸馏海水淡化性能进行了研究。探讨了膜制备条件及海水流量、温度、膜后真空度等真空膜蒸馏过程操作条件对聚丙烯平板膜组件海水淡化性能的影响,自制组件连续运行的小试结果表明:当真空侧压力为3kPa,进料温度为323.15K,流量为50L/h时,天津市渤海湾海水膜蒸馏过程的平均水通量达10.56kg/m·2h,产品水的脱盐率均在99.8%以上。In the paper was studied the performance of flat sheet iPP microfiltration membrane and enquired into the effect of membrane preparation conditions, seawater flow, temperature, after-membrane vacuum degree etc. on the seawater desalination performance ofiPP module. The results through continuous operation showed that the average water flux of the membrane reached to 10.56kg/m^2·h, salt rejection rate was as high as 99.8% or more when the pressure on the vacuum side was 3kPa; feed temperature 323.15k.

关 键 词：热致相分离 聚丙烯 平板微孔膜 膜蒸馏 海水淡化 

分 类 号：TQ028.8[化学工程]