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	Electrokinetic phenomena of a polyethylene microfiltration membrane in single salt solutions of NaCl, KCl, MgCl2, Na2SO4, and MgSO4
	Ding, N ; Wang, XL ; Wang, J
	2010-05-07 ; 2010-05-07
会议名称	DESALINATION ; International Congress on Membranes and Membrane Processes ; Seoul, SOUTH KOREA ; Web of Science
关键词	electrokinetic phenomena microfiltration streaming potential zeta potential surface charge density STREAMING POTENTIAL MEASUREMENTS NANOFILTRATION MEMBRANES WASTE-WATER PORES ADSORPTION PROTEIN CHARGE FLOW Engineering, Chemical Water Resources
中文摘要	The streaming potential measurements of a polyethylene microfiltration (PE-MF) membrane were carried out under aqueous solutions of five single salts (NaCl, KCl, MgCl2, Na2SO4 and MgSO4); the zeta potential and surface charge density of the membrane were estimated on the basis of the Helmholtz-Smoluchowski equation and the Gouy-Chapmann theory. The results show that the PE-MF membrane has a weak negative charge due to the specific sorption of ions, and behaves almost as a certain zeta potential in a very dilute salt solution and as almost a certain surface charge density in a solution with a concentration more than 4 mol(.)m(-3). However, the streaming potential, the zeta potential and the surface charge density of the membrane depend strongly on the salt concentration and the type and valence of ions.
会议录出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/17147]
专题	清华大学
推荐引用方式 GB/T 7714	Ding, N,Wang, XL,Wang, J. Electrokinetic phenomena of a polyethylene microfiltration membrane in single salt solutions of NaCl, KCl, MgCl2, Na2SO4, and MgSO4[C]. 见:DESALINATION, International Congress on Membranes and Membrane Processes, Seoul, SOUTH KOREA, Web of Science.

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