膜科学与技术

盐浓度对陶瓷膜过滤过程的影响

作者：张荟钦顾俊杰李卫星邢卫红

单位：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

关键词：陶瓷膜；无机盐；膜过程

出版年,卷(期):页码： 2010,1(6):0-0

摘要：

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。本文考察不同温度下，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。

Abstract: 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 is studied. Experimental results show that the effect of salt concentration on the membrane flux is very significant; the correlation of flux with salt concentration is 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 show that the main reason of the influence on membrane flux is salt solution viscosity, the predicted values fit the experimental values well, with an error in 10%.

作者介绍：张荟钦（1984－），男，,硕士生，新疆和田市人，研究方向：膜分离，Email：whzhanghuiqin@163.com。通讯联系人：邢卫红，电话025－83172288，Email：xingwh@njut.edu.cn。

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