陶瓷膜法海水淡化预处理工艺条件优化  

OPTIMIZATION OF PRETREATMENT PROCESS WITH CERAMIC MEMBRANE FOR SEAWATER DESALINATION

作　　者：刘学文[1] 柏其亚[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材料化学工程国家重点实验室,江苏南京210009

出　　处：《水处理技术》2007年第12期66-69,共4页Technology of Water Treatment

基　　金：国家高技术研究发展计划(863)项目(2005AA320020);国家重点基础研究发展规划(973)项目(2003CB615707)

摘　　要：以青岛胶州湾海水为试验对象,优化陶瓷膜作为反渗透法海水淡化(SWRO)预处理时的工艺条件,试验结果表明:以絮凝沉降为陶瓷超滤膜前处理,pH值6.5,跨膜压差0.09～0.10MPa时,平均渗透通量大于300L/m2·h,膜面流速在0.2～1.0m/s范围内对渗透通量影响较小,预处理出水水质适合海水淡化高压反渗透进水。The optimization of technological conditions for pretreatment of RO seawater desalination with ceramic membrane was studied with the seawater from Jiaozhou bay. The experimental results showed that, under the condition of pretreatment of ceramic membrane with flocculation sedimenlation, pH 6.5 and different trans-membrane pressure within 0.09-0.10MPa, the average permeate flux was over 300L/m^2·h, flow speed on membrane surface within 0.2- 1.0m/s had little influence on the permeate flux; the effluent quality after the pretreatment conformed to the requirements of RO influent at high pressure for seawater desalination.

关 键 词：陶瓷膜 预处理工艺 反渗透(RO) 海水淡化 

分 类 号：TQ028.8[化学工程]