终端陶瓷膜法海水淡化预处理  

Pretreatment of SWRO by dead-end ceramic membrane

作　　者：柏其亚[1] 刘学文[1] 范益群[1] 邢卫红[1] 

机构地区：[1]南京工业大学膜科学技术研究所,省部共建材料化学工程教育部重点实验室,南京210009

出　　处：《膜科学与技术》2008年第5期86-89,共4页Membrane Science and Technology

基　　金：国家863项目(编号2005AA320020)

摘　　要：采用低能耗的终端过滤方式进行陶瓷膜法海水淡化预处理,比较了"絮凝沉降+陶瓷膜"和"砂滤+陶瓷膜"两种预处理工艺.前者延长了膜再生周期,其陶瓷膜的平均渗透通量是后者的1.6倍,达到220 L/(m2.h),产水回收率大于90%.经陶瓷膜预处理后的产水水质稳定,达到反渗透膜的进水水质要求.结果表明,"絮凝沉降+陶瓷膜"预处理工艺明显优于"砂滤+陶瓷膜"预处理工艺.Ceramic membrane dead- end filtration was used for pretreatment of SWRO. The technology of ＂flocculation and ceramic membrane＂ was compared to the technology of ＂sand filter and ceramic membrane＂. The former prolonged the period of regeneration and its average flux was 220 L/（m^2· h）, which was 1.6 times than that of the latter. Meanwhile, the rate of water recovery was more than 90%. After treatment of ceramic membrane, the quality of water could meet the requirement of SWRO. The results suggested that the technology of ＂flocculation and ceramic membrane＂ was superior to the technology of ＂sand filter and ceramic membrane＂ obviously.

关 键 词：陶瓷膜 海水淡化 预处理 终端过滤 

分 类 号：P747[天文地球—海洋科学]