Internal concentration polarization in forward osmosis: role of membrane orientation

被引：516

作者：

Gray, Gordon T. ^{[1
]}

McCutcheon, Jeffrey R. ^{[1
]}

Elimelech, Menachem ^{[1
]}

机构：

[1] Yale Univ, Dept Chem Engn, Environm Engn Program, New Haven, CT 06520 USA

来源：

DESALINATION | 2006年 / 197卷 / 1-3期

关键词：

forward osmosis; direct osmosis; internal concentration polarization; osmosis; desalination; draw solution;

D O I：

10.1016/j.desal.2006.02.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The mechanisms governing internal concentration polarization (ICP) were studied using well-controlled forward osmosis experiments. The relationship between osmotic pressure and water flux was observed across a range of solute concentrations and molecular weights. The effect of membrane orientation on ICP was also studied. Two regimes of ICP-dilutive and concentrative-were described and characterized, and their governing equations were tested. Resistances to solute diffusion within the membrane porous support layer were calculated under each regime and found to be consistent across a wide variety of experimental parameters.

引用

页码：1 / 8

页数：8

共 9 条

[1]

[Anonymous], 1993, PURE APPL CHEM, V65, P2614

[2] MEMBRANES FOR POWER-GENERATION BY PRESSURE-RETARDED OSMOSIS [J].

LEE, KL ;

BAKER, RW ;

LONSDALE, HK .

JOURNAL OF MEMBRANE SCIENCE, 1981, 8 (02) :141-171

[3] Effect of porous support fabric on osmosis through a Loeb-Sourirajan type asymmetric membrane [J].

Loeb, S ;

Titelman, L ;

Korngold, E ;

Freiman, J .

JOURNAL OF MEMBRANE SCIENCE, 1997, 129 (02) :243-249

[4] One hundred and thirty benign and renewable megawatts from Great Salt Lake? The possibilities of hydroelectric power by pressure-retarded osmosis [J].

Loeb, S .

DESALINATION, 2001, 141 (01) :85-91

[5] Desalination by ammonia-carbon dioxide forward osmosis: Influence of draw and feed solution concentrations on process performance [J].

McCutcheon, Jeffrey R. ;

McGinnis, Robert L. ;

Elimelech, Menachern .

JOURNAL OF MEMBRANE SCIENCE, 2006, 278 (1-2) :114-123

[6] A novel ammonia-carbon dioxide forward (direct) osmosis desalination process [J].

McCutcheon, JR ;

McGinnis, RL ;

Elimelech, M .

DESALINATION, 2005, 174 (01) :1-11

[7] PERFORMANCE OF PERMASEP B-9 AND B-10 MEMBRANES IN VARIOUS OSMOTIC REGIONS AND AT HIGH OSMOTIC PRESSURES [J].

MEHTA, GD ;

LOEB, S .

JOURNAL OF MEMBRANE SCIENCE, 1979, 4 (03) :335-349

[8] Concentration polarization in ultrafiltration and reverse osmosis: a critical review [J].

Sablani, SS ;

Goosen, MFA ;

Al-Belushi, R ;

Wilf, M .

DESALINATION, 2001, 141 (03) :269-289

[9] Role of charge (Donnan) exclusion in removal of arsenic from water by a negatively charged porous nanofiltration membrane [J].

Seidel, A ;

Waypa, JJ ;

Elimelech, M .

ENVIRONMENTAL ENGINEERING SCIENCE, 2001, 18 (02) :105-113

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