摘要
本文研究电解质溶液的种类、浓度及pH等因素对反渗透膜表面Zeta电位的影响.为膜表面Zeta电位的准确测定提供依据,并通过研究不同电解质溶液对膜面Zeta电位的影响,得到电解质溶液对膜表面Zeta电位的基本作用规律,以指导用于各种污水体系的膜的污染情况和使用寿命,为不同污水体系膜的选择和使用提供借鉴和指导作用。在此基础上,又研究污染膜和清洗后膜表面的Zeta电位和接触角,定性表征污染膜表面的污染程度及各种方法的清洗效果。
The effect of the factors such as type and concentration of electrolyte, pH on Zeta potential of RO membrane were studied, and it offered basis for exact measurement of membrane Zeta potential. The basic rules were obtained by researching the effect of various electrolyte solutions on Zeta potential, which can make us choose right membrane and realize membrane fouling in various wastewater in order to prolong lifetime of mem- brane. In addition, Zeta potential and contact angle of foul membrane and membrane after cleaning were measured in order to evaluate the degree of membrane fouling and all kinds of cleaning methods.
出处
《现代仪器》
2010年第3期42-44,48,共4页
Modern Instruments
关键词
膜
ZETA电位
电解质
pH
膜污染
接触角
Membrane Zeta potential Electrolyte pH Membrane fouling Contact angle
