A combined ion exchange-nanofiltration process for water desalination: II. Membrane selection

Nidal Hilal; Viktor Kochkodan; Hasan Al Abdulgader; Daniel Johnson

doi:10.1016/j.desal.2014.11.017

A combined ion exchange-nanofiltration process for water desalination: II. Membrane selection

Nidal Hilal, Viktor Kochkodan, Hasan Al Abdulgader, Daniel Johnson

Research output: Contribution to journal › Article

13 Citations (Scopus)

Abstract

This paper discusses the performance of NF270, NF90, BW30 and SW30 (Dow/FilmTec) membranes during filtration of single and mixed NaCl and Na₂SO₄ solutions at different feed concentrations and NaCl to Na₂SO₄ ratios. The feeds represent the compositions of possible streams after IX treatment in a combined ion exchange (IX)-nanofiltration (NF) process of water desalination. The impact of total feed concentration, the NaCl/Na₂SO₄ ratio and feed pH on membranes flux and rejection of sulphate and chloride ions were determined. All membranes showed excellent rejection of sulphate ions, while chloride rejection largely varied for NF membranes with changes in feed concentration, composition and pH. A high negative rejection of chloride ions was observed with NF270 membrane during treatment of binary aqueous solution with a high Na₂SO₄ to NaCl ratio due to the Donnan effect.

Original language	English
Pages (from-to)	51-57
Number of pages	7
Journal	Desalination
Volume	363
DOIs	https://doi.org/10.1016/j.desal.2014.11.017
Publication status	Published - 1 May 2015

Fingerprint

Keywords

Binary NaCl/NaSO solutions
Chloride rejection
Desalination
Nanofiltration

ASJC Scopus subject areas

Chemical Engineering(all)
Mechanical Engineering
Chemistry(all)
Materials Science(all)
Water Science and Technology

Cite this

Hilal, N., Kochkodan, V., Al Abdulgader, H., & Johnson, D. (2015). A combined ion exchange-nanofiltration process for water desalination: II. Membrane selection. Desalination, 363, 51-57. https://doi.org/10.1016/j.desal.2014.11.017

@article{86e3ecfdbaf04296907b420db0c6ac61,

title = "A combined ion exchange-nanofiltration process for water desalination: II. Membrane selection",

abstract = "This paper discusses the performance of NF270, NF90, BW30 and SW30 (Dow/FilmTec) membranes during filtration of single and mixed NaCl and Na2SO4 solutions at different feed concentrations and NaCl to Na2SO4 ratios. The feeds represent the compositions of possible streams after IX treatment in a combined ion exchange (IX)-nanofiltration (NF) process of water desalination. The impact of total feed concentration, the NaCl/Na2SO4 ratio and feed pH on membranes flux and rejection of sulphate and chloride ions were determined. All membranes showed excellent rejection of sulphate ions, while chloride rejection largely varied for NF membranes with changes in feed concentration, composition and pH. A high negative rejection of chloride ions was observed with NF270 membrane during treatment of binary aqueous solution with a high Na2SO4 to NaCl ratio due to the Donnan effect.",

keywords = "Binary NaCl/NaSO solutions, Chloride rejection, Desalination, Nanofiltration",

author = "Nidal Hilal and Viktor Kochkodan and {Al Abdulgader}, Hasan and Daniel Johnson",

year = "2015",

month = may

day = "1",

doi = "10.1016/j.desal.2014.11.017",

language = "English",

volume = "363",

pages = "51--57",

journal = "Desalination",

issn = "0011-9164",

publisher = "Elsevier",

}

TY - JOUR

T1 - A combined ion exchange-nanofiltration process for water desalination

T2 - II. Membrane selection

AU - Hilal, Nidal

AU - Kochkodan, Viktor

AU - Al Abdulgader, Hasan

AU - Johnson, Daniel

PY - 2015/5/1

Y1 - 2015/5/1

N2 - This paper discusses the performance of NF270, NF90, BW30 and SW30 (Dow/FilmTec) membranes during filtration of single and mixed NaCl and Na2SO4 solutions at different feed concentrations and NaCl to Na2SO4 ratios. The feeds represent the compositions of possible streams after IX treatment in a combined ion exchange (IX)-nanofiltration (NF) process of water desalination. The impact of total feed concentration, the NaCl/Na2SO4 ratio and feed pH on membranes flux and rejection of sulphate and chloride ions were determined. All membranes showed excellent rejection of sulphate ions, while chloride rejection largely varied for NF membranes with changes in feed concentration, composition and pH. A high negative rejection of chloride ions was observed with NF270 membrane during treatment of binary aqueous solution with a high Na2SO4 to NaCl ratio due to the Donnan effect.

AB - This paper discusses the performance of NF270, NF90, BW30 and SW30 (Dow/FilmTec) membranes during filtration of single and mixed NaCl and Na2SO4 solutions at different feed concentrations and NaCl to Na2SO4 ratios. The feeds represent the compositions of possible streams after IX treatment in a combined ion exchange (IX)-nanofiltration (NF) process of water desalination. The impact of total feed concentration, the NaCl/Na2SO4 ratio and feed pH on membranes flux and rejection of sulphate and chloride ions were determined. All membranes showed excellent rejection of sulphate ions, while chloride rejection largely varied for NF membranes with changes in feed concentration, composition and pH. A high negative rejection of chloride ions was observed with NF270 membrane during treatment of binary aqueous solution with a high Na2SO4 to NaCl ratio due to the Donnan effect.

KW - Binary NaCl/NaSO solutions

KW - Chloride rejection

KW - Desalination

KW - Nanofiltration

UR - http://www.scopus.com/inward/record.url?scp=84924663718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924663718&partnerID=8YFLogxK

U2 - 10.1016/j.desal.2014.11.017

DO - 10.1016/j.desal.2014.11.017

M3 - Article

AN - SCOPUS:84924663718

VL - 363

SP - 51

EP - 57

JO - Desalination

JF - Desalination

SN - 0011-9164

ER -

Access to Document

10.1016/j.desal.2014.11.017