摘要
以聚丙烯中空纤维微滤膜为底膜、羧甲基纤维素钠为功能材料、氯化铁为交联剂,采用溶液涂覆-交联工艺制备了表面荷电的中空纤维复合膜,将该中空纤维复合膜用于正渗透(FO)过程,研究了汲取液盐含量、原料液流速等对FO通量的影响。结果表明,制备的荷电中空纤维复合膜可用于FO过程,以蒸馏水为原料液、Na2SO4水溶液为汲取液,采用PRO模式进行FO试验,当原料液与汲取液体积流量均为15 mL/min、汲取液浓度为0.5 mol/L时,FO水通量为12.3 L/(m2.h),盐通量与水通量的比为1.42 g/L。
The negatively charged hollow fiber composite membrane was prepared by solution coating-the cross-linking process through depositing CMCNa layer on the surface of PP hollow fiber microfiltration membrane followed by cross-linking with FeCl3.The composite hollow fiber membrane was used for the forward infiltration process（FO） to study the effect of liquid salt content and raw material liquid velocity on FO flux.The results indicated that the prepared charged composite hollow fiber membrane can be used for the FO process,which took distilled water as the raw material liquid,Na2SO4solution as draw liquid,the PRO mode was took to do FO test,when the draw solution was 0.5 mol/L Na2SO4aqueous solution and the flow rate of feed solution pure water was 15 mL/min,the water flux of forward osmosis process was 12.3 L/（m2.h）.The salt flux and water flux ratio was（Js/Jv） 1.42 g/L.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第11期65-68,76,共5页
Technology of Water Treatment
基金
国家自然科学基金(20976167)
浙江省重点科技科技创新团队项目(2010R50038)
应用化学与生态染整工程浙江省重中之重学科开放基金项目(YR2011010)
关键词
正渗透
荷电半透膜
中空纤维复合膜
forward osmosis
charged semipermeable membrane
hollow fiber composite membrane
