摘要
通过测量膜的流动电势,可以判别膜所荷电电荷的性质,从流动电势和外加压力差之■F_流/■ΔP)测得β值,结合膜的其他参数测定,可以算出膜微孔中界面双电层的电荷密度和膜孔内过剩电荷的浓度等数据,以便对膜的性能有一个更深入的了解。
The charge of a membrane can be detrermined by measuring the stre-aming potential of the membrane.Value (β=■) can be caloulated fromthe ratio of streaming potential (■E_s) to the pressure difference acrossmenbrane (■△P).Combining with other parameters of membrane measured,the charge per unit area of electric double layer at inter surface of mem-brane pore and the concentration of excessive ion in the membrane pore canbe calculated.Thus can gain an insight into the property of a membrane.
出处
《水处理技术》
CAS
CSCD
北大核心
1991年第3期153-161,共9页
Technology of Water Treatment
关键词
膜
荷电膜
流动电位
膜性能
测量
charged membrane
streaming potential
measurement of membrane property
