盐浓度对陶瓷膜过滤过程的影响  

Salt concentration on the impact of ceramic membrane filtration process

作　　者：张荟钦[1] 顾俊杰[1] 李卫星[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,南京210009

出　　处：《膜科学与技术》2010年第6期26-29,共4页Membrane Science and Technology

基　　金：教育部新世纪优秀人才支持计划(NCET-06-0506);江苏省高校科研成果产业化推进项目(JH07-014);江苏省“六大”人才高峰项目(06-A-048)

摘　　要：陶瓷膜应用过程中常涉及到含盐体系,盐浓度对过滤过程影响显著.考察不同温度下,不同浓度氯化钠水溶液的陶瓷膜过滤过程.实验结果表明,盐浓度对膜渗透通量影响明显,不同孔径的陶瓷膜过滤通量与盐浓度的变化关系相同;将氯化钠溶液黏度随温度和浓度的经验关系式引入Darcy方程中,计算结果表明,盐溶液的黏度是影响膜渗透通量的主要原因,计算值与实验值吻合较好,误差在10%以内.The ceramic membrane process often involves salt-bearing system,which is effected significantly by the salt concentration.The ceramic membrane filtration process of sodium chloride aqueous solution with different concentrations under different temperatures was studied.Experimental results showed that the effect of salt concentration on the membrane flux was significant;the correlations of flux with salt concentration were the same for ceramic membranes with different pore size.The empirical formula of viscosity of the sodium chloride solution on temperature and concentration was introduced to the Darcy law,the calculated results showed that the main factor of the influence on membrane flux was salt solution viscosity,the predicted values fited the experimental values well,with an error less than 10%.

关 键 词：陶瓷膜 无机盐 膜过程 

分 类 号：TQ028.8[化学工程]