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Experimental Investigation into the Transmembrane Electrical Potential of the Forward Osmosis Membrane Process in Electrolyte Solutions

Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Membranes 2014, 4(2), 275-286; https://doi.org/10.3390/membranes4020275
Received: 12 March 2014 / Revised: 29 April 2014 / Accepted: 10 June 2014 / Published: 19 June 2014
(This article belongs to the Special Issue Selected Papers from AMS8 Conference (July 2013, Xi’an, China))
The transmembrane electrical potential (TMEP) in a forward osmosis membrane process with a single electrolyte solution as the draw and feed solutions was investigated by experiments. The effects of membrane orientation, the electrolyte species (KCl, NaCl, MgCl2, and CaCl2), concentration and concentration ratio of solutions at both sides of membrane on water flux and TMEP were investigated. The results showed that the TMEPs at different membrane orientation cannot completely coincide, which confirmed the effect of membrane asymmetry. The ion diffusion coefficients significantly affected the TMEP across the membrane, with different patterns for different electrolytes and concentrations. View Full-Text
Keywords: transmembrane electrical potential; forward osmosis; forward osmosis membrane; water flux; electrolyte transmembrane electrical potential; forward osmosis; forward osmosis membrane; water flux; electrolyte
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MDPI and ACS Style

Bian, L.; Fang, Y.; Wang, X. Experimental Investigation into the Transmembrane Electrical Potential of the Forward Osmosis Membrane Process in Electrolyte Solutions. Membranes 2014, 4, 275-286. https://doi.org/10.3390/membranes4020275

AMA Style

Bian L, Fang Y, Wang X. Experimental Investigation into the Transmembrane Electrical Potential of the Forward Osmosis Membrane Process in Electrolyte Solutions. Membranes. 2014; 4(2):275-286. https://doi.org/10.3390/membranes4020275

Chicago/Turabian Style

Bian, Lixia; Fang, Yanyan; Wang, Xiaolin. 2014. "Experimental Investigation into the Transmembrane Electrical Potential of the Forward Osmosis Membrane Process in Electrolyte Solutions" Membranes 4, no. 2: 275-286. https://doi.org/10.3390/membranes4020275

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