减压膜蒸馏法淡化渤海海水的研究  

STUDY ON SEAWATER DESALINATION BY VACUUM MEMBRANE DISTILLATION

作　　者：李欢[1] 陈华艳[1] 吕晓龙[1] 

机构地区：[1]中空纤维膜材料与膜过程教育部重点实验室,天津工业大学生物化工研究所,天津300160

出　　处：《水处理技术》2009年第4期65-68,73,共5页Technology of Water Treatment

基　　金：国家科技支撑计划项目(2006BAB03A06);国家研究发展计划(863)课题(2008AA06Z303)

摘　　要：采用减压膜蒸馏法淡化渤海海水。考察了温度、流速等操作条件对膜通量的影响。测定了海水不同浓缩倍数时的膜通量和水质指标,试验表明膜蒸馏浓缩实验最大膜通量达到17.6kg·m-2·h-1,产出淡水的脱盐率可以达到99.99%以上,浓缩到4.5倍时淡水回收率达到77.8%。The vacuum membrane distillation was applied in seawater desalination of Bo Hai. The effect of feed temperature, feed velocity on flux were investigated. The product flux and quality were tested at different concentration multiple. The results showed that the max flux of VMD reached 17.6 kg.m^-2.h^-1 and the fresh water recovery reached 77.8%.

关 键 词：膜蒸馏 海水淡化 PVDF疏水膜 

分 类 号：TQ028.8[化学工程] P747.1[天文地球—海洋科学]