The effect of membrane characteristics on nanofiltration membrane performance during processing of practically saturated salt solutions

Gerrald Bargeman, J.B. Westerink, C.F.H. Manuhutu, A. ten Kate

Research output: Contribution to journalArticleAcademic

16 Citations (Scopus)

Abstract

Information on the effect of membrane characteristics on the performance of nanofiltration membranes during processing of concentrated sodium chloride solutions is scarce. This hampers membrane selection for these applications. In this study nanofiltration membranes, ranging from very tight to very open, have been evaluated for processing of sodium chloride solutions obtained from solution mining. Sulfate retention of these membranes is inversely related to their pore radius obtained from membrane characterization. The chloride retention during nanofiltration of practically saturated salt solutions is a function of the sulfate concentration difference between concentrate and permeate. The observed relation is explained by the small sodium chloride chemical potential difference between concentrate and permeate, indicating low membrane resistance for sodium chloride transport. This is concluded from the sodium chloride concentration product ratios of permeate over concentrate, which were found to be between 0.9 and 1 for all membranes evaluated. This ratio is proportionally related to the membrane pore radius obtained from characterization. Based on the results the sulfate and chloride retention of nanofiltration membranes for processing of saturated sodium chloride solutions can now be obtained from a simple characterization experiment.
Original languageEnglish
Pages (from-to)112-122
JournalJournal of membrane science
Volume485
DOIs
Publication statusPublished - 2015

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Nanofiltration membranes
Sodium chloride
Sodium Chloride
Salts
membranes
salts
Membranes
sodium chlorides
Processing
Sulfates
sulfates
Chlorides
Solution mining
Nanofiltration
Chemical potential
chlorides
porosity
radii

Keywords

  • IR-103684

Cite this

Bargeman, Gerrald ; Westerink, J.B. ; Manuhutu, C.F.H. ; ten Kate, A. / The effect of membrane characteristics on nanofiltration membrane performance during processing of practically saturated salt solutions. In: Journal of membrane science. 2015 ; Vol. 485. pp. 112-122.
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abstract = "Information on the effect of membrane characteristics on the performance of nanofiltration membranes during processing of concentrated sodium chloride solutions is scarce. This hampers membrane selection for these applications. In this study nanofiltration membranes, ranging from very tight to very open, have been evaluated for processing of sodium chloride solutions obtained from solution mining. Sulfate retention of these membranes is inversely related to their pore radius obtained from membrane characterization. The chloride retention during nanofiltration of practically saturated salt solutions is a function of the sulfate concentration difference between concentrate and permeate. The observed relation is explained by the small sodium chloride chemical potential difference between concentrate and permeate, indicating low membrane resistance for sodium chloride transport. This is concluded from the sodium chloride concentration product ratios of permeate over concentrate, which were found to be between 0.9 and 1 for all membranes evaluated. This ratio is proportionally related to the membrane pore radius obtained from characterization. Based on the results the sulfate and chloride retention of nanofiltration membranes for processing of saturated sodium chloride solutions can now be obtained from a simple characterization experiment.",
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The effect of membrane characteristics on nanofiltration membrane performance during processing of practically saturated salt solutions. / Bargeman, Gerrald; Westerink, J.B.; Manuhutu, C.F.H.; ten Kate, A.

In: Journal of membrane science, Vol. 485, 2015, p. 112-122.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - The effect of membrane characteristics on nanofiltration membrane performance during processing of practically saturated salt solutions

AU - Bargeman, Gerrald

AU - Westerink, J.B.

AU - Manuhutu, C.F.H.

AU - ten Kate, A.

PY - 2015

Y1 - 2015

N2 - Information on the effect of membrane characteristics on the performance of nanofiltration membranes during processing of concentrated sodium chloride solutions is scarce. This hampers membrane selection for these applications. In this study nanofiltration membranes, ranging from very tight to very open, have been evaluated for processing of sodium chloride solutions obtained from solution mining. Sulfate retention of these membranes is inversely related to their pore radius obtained from membrane characterization. The chloride retention during nanofiltration of practically saturated salt solutions is a function of the sulfate concentration difference between concentrate and permeate. The observed relation is explained by the small sodium chloride chemical potential difference between concentrate and permeate, indicating low membrane resistance for sodium chloride transport. This is concluded from the sodium chloride concentration product ratios of permeate over concentrate, which were found to be between 0.9 and 1 for all membranes evaluated. This ratio is proportionally related to the membrane pore radius obtained from characterization. Based on the results the sulfate and chloride retention of nanofiltration membranes for processing of saturated sodium chloride solutions can now be obtained from a simple characterization experiment.

AB - Information on the effect of membrane characteristics on the performance of nanofiltration membranes during processing of concentrated sodium chloride solutions is scarce. This hampers membrane selection for these applications. In this study nanofiltration membranes, ranging from very tight to very open, have been evaluated for processing of sodium chloride solutions obtained from solution mining. Sulfate retention of these membranes is inversely related to their pore radius obtained from membrane characterization. The chloride retention during nanofiltration of practically saturated salt solutions is a function of the sulfate concentration difference between concentrate and permeate. The observed relation is explained by the small sodium chloride chemical potential difference between concentrate and permeate, indicating low membrane resistance for sodium chloride transport. This is concluded from the sodium chloride concentration product ratios of permeate over concentrate, which were found to be between 0.9 and 1 for all membranes evaluated. This ratio is proportionally related to the membrane pore radius obtained from characterization. Based on the results the sulfate and chloride retention of nanofiltration membranes for processing of saturated sodium chloride solutions can now be obtained from a simple characterization experiment.

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