Feasibility of the use of polymer-assisted membrane filtration for brackish water softening

Ruey Shin Juang; Chwei Huann Chiou

doi:10.1016/S0376-7388(01)00330-1

Feasibility of the use of polymer-assisted membrane filtration for brackish water softening

Ruey Shin Juang, Chwei Huann Chiou

Yuan Ze University

Research output: Contribution to journal › Journal Article › peer-review

43 Scopus citations

Abstract

The feasibility of using polymer-assisted ultrafiltration for brackish water softening, i.e. the removal of Na⁺, K⁺, Ca²⁺, Mg²⁺, Cl^-, NO₃^-, and SO₄^2- from water, was studied. Three weakly basic, cationic water-soluble polymers chitosan, poly(ethylenimine), and poly(diallyl dimethylammonium chloride) were selected. The membranes Amicon YM10, YM30 (regenerated cellulose), and PM10 (polysulfone) were used. Experiments were performed as a function of solution pH. It was shown that the removal of divalent Ca²⁺ and Mg²⁺ was more efficient than that of univalent Na⁺ and K⁺. In addition, the rejection of anions decreased in the order NO₃^->Cl^->SO₄^2-. Finally, the fouling of membranes during filtration was analyzed by conventional cake filtration theory taking into account incompressible or compressible nature of the deposited cake.

Original language	English
Pages (from-to)	119-127
Number of pages	9
Journal	Journal of Membrane Science
Volume	187
Issue number	1-2
DOIs	https://doi.org/10.1016/S0376-7388(01)00330-1
State	Published - 15 06 2001
Externally published	Yes

Keywords

Brackish water softening
Chitosan
Fouling analysis
Poly(diallyl dimethylammonium chloride)
Poly(ethylenimine)
Polymer-assisted ultrafiltration

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10.1016/S0376-7388(01)00330-1

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title = "Feasibility of the use of polymer-assisted membrane filtration for brackish water softening",

abstract = "The feasibility of using polymer-assisted ultrafiltration for brackish water softening, i.e. the removal of Na+, K+, Ca2+, Mg2+, Cl-, NO3-, and SO42- from water, was studied. Three weakly basic, cationic water-soluble polymers chitosan, poly(ethylenimine), and poly(diallyl dimethylammonium chloride) were selected. The membranes Amicon YM10, YM30 (regenerated cellulose), and PM10 (polysulfone) were used. Experiments were performed as a function of solution pH. It was shown that the removal of divalent Ca2+ and Mg2+ was more efficient than that of univalent Na+ and K+. In addition, the rejection of anions decreased in the order NO3->Cl->SO42-. Finally, the fouling of membranes during filtration was analyzed by conventional cake filtration theory taking into account incompressible or compressible nature of the deposited cake.",

keywords = "Brackish water softening, Chitosan, Fouling analysis, Poly(diallyl dimethylammonium chloride), Poly(ethylenimine), Polymer-assisted ultrafiltration",

author = "Juang, {Ruey Shin} and Chiou, {Chwei Huann}",

year = "2001",

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doi = "10.1016/S0376-7388(01)00330-1",

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AU - Juang, Ruey Shin

AU - Chiou, Chwei Huann

PY - 2001/6/15

Y1 - 2001/6/15

N2 - The feasibility of using polymer-assisted ultrafiltration for brackish water softening, i.e. the removal of Na+, K+, Ca2+, Mg2+, Cl-, NO3-, and SO42- from water, was studied. Three weakly basic, cationic water-soluble polymers chitosan, poly(ethylenimine), and poly(diallyl dimethylammonium chloride) were selected. The membranes Amicon YM10, YM30 (regenerated cellulose), and PM10 (polysulfone) were used. Experiments were performed as a function of solution pH. It was shown that the removal of divalent Ca2+ and Mg2+ was more efficient than that of univalent Na+ and K+. In addition, the rejection of anions decreased in the order NO3->Cl->SO42-. Finally, the fouling of membranes during filtration was analyzed by conventional cake filtration theory taking into account incompressible or compressible nature of the deposited cake.

AB - The feasibility of using polymer-assisted ultrafiltration for brackish water softening, i.e. the removal of Na+, K+, Ca2+, Mg2+, Cl-, NO3-, and SO42- from water, was studied. Three weakly basic, cationic water-soluble polymers chitosan, poly(ethylenimine), and poly(diallyl dimethylammonium chloride) were selected. The membranes Amicon YM10, YM30 (regenerated cellulose), and PM10 (polysulfone) were used. Experiments were performed as a function of solution pH. It was shown that the removal of divalent Ca2+ and Mg2+ was more efficient than that of univalent Na+ and K+. In addition, the rejection of anions decreased in the order NO3->Cl->SO42-. Finally, the fouling of membranes during filtration was analyzed by conventional cake filtration theory taking into account incompressible or compressible nature of the deposited cake.

KW - Brackish water softening

KW - Chitosan

KW - Fouling analysis

KW - Poly(diallyl dimethylammonium chloride)

KW - Poly(ethylenimine)

KW - Polymer-assisted ultrafiltration

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M3 - 文章

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EP - 127

JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1-2

ER -

Feasibility of the use of polymer-assisted membrane filtration for brackish water softening

Abstract

Keywords

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