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Description: Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
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Description: Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Treatment of Industrial Reverse Osmosis Brine using Nanofiltration

Treatment of Industrial Reverse Osmosis Brine using Nanofiltration

Treatment of Industrial Reverse Osmosis Brine using Nanofiltration

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Description: Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Abstract
Membrane processes may be used to further concentrate reverse osmosis brine for a cost-effective zero liquid discharge (ZLD) approach. In this study, three types of nanofiltration (NF) membranes were evaluated, namely NF270 (Dow Filmtec), NF90 (Dow Filmtec) and DL (GE Osmonics). Feed representing moderate and high strength industrial brine were used. Results showed crossflow velocity had varying impact on the permeate quality of different NF membranes. NF90 had the highest ion and organic rejection due to its small pore size. The results also demonstrated pH had significant impact on organic fouling. Under acidic conditions, humic acid substances in the feed has partial negative charge, which could lead to greater attraction towards the NF90 surface at pH close to its isoelectric point (pH 3-4). This could have caused higher flux decline observed in the study when operating at feed pH 4-5 as compared to operating at pH 6.
Membrane processes may be used to further concentrate reverse osmosis brine for a cost-effective zero liquid discharge (ZLD) approach. In this study, three types of nanofiltration (NF) membranes were evaluated, namely NF270 (Dow Filmtec), NF90 (Dow Filmtec) and DL (GE Osmonics). Feed representing moderate and high strength industrial brine were used. Results showed crossflow velocity had varying...
Author(s)
Galilee Uy SemblanteLai Yoke LeeSay Leong OngPrannoy ChowdhuryHaijun FangKeng Boon SiahHow Yong Ng
SourceProceedings of the Water Environment Federation
Subject500 Resource Recovery at Industrial Wastewater Treatment Plants
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Sep, 2018
ISSN1938-6478
SICI1938-6478(20180101)2018:10L.3669;1-
DOI10.2175/193864718825135973
Volume / Issue2018 / 10
Content sourceWEFTEC
First / last page(s)3669 - 3676
Copyright2018
Word count155
Subject keywordsMembrane foulingNanofiltrationZero liquid discharge

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Description: Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
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Description: Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Abstract
Membrane processes may be used to further concentrate reverse osmosis brine for a cost-effective zero liquid discharge (ZLD) approach. In this study, three types of nanofiltration (NF) membranes were evaluated, namely NF270 (Dow Filmtec), NF90 (Dow Filmtec) and DL (GE Osmonics). Feed representing moderate and high strength industrial brine were used. Results showed crossflow velocity had varying impact on the permeate quality of different NF membranes. NF90 had the highest ion and organic rejection due to its small pore size. The results also demonstrated pH had significant impact on organic fouling. Under acidic conditions, humic acid substances in the feed has partial negative charge, which could lead to greater attraction towards the NF90 surface at pH close to its isoelectric point (pH 3-4). This could have caused higher flux decline observed in the study when operating at feed pH 4-5 as compared to operating at pH 6.
Membrane processes may be used to further concentrate reverse osmosis brine for a cost-effective zero liquid discharge (ZLD) approach. In this study, three types of nanofiltration (NF) membranes were evaluated, namely NF270 (Dow Filmtec), NF90 (Dow Filmtec) and DL (GE Osmonics). Feed representing moderate and high strength industrial brine were used. Results showed crossflow velocity had varying...
Author(s)
Galilee Uy SemblanteLai Yoke LeeSay Leong OngPrannoy ChowdhuryHaijun FangKeng Boon SiahHow Yong Ng
SourceProceedings of the Water Environment Federation
Subject500 Resource Recovery at Industrial Wastewater Treatment Plants
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Sep, 2018
ISSN1938-6478
SICI1938-6478(20180101)2018:10L.3669;1-
DOI10.2175/193864718825135973
Volume / Issue2018 / 10
Content sourceWEFTEC
First / last page(s)3669 - 3676
Copyright2018
Word count155
Subject keywordsMembrane foulingNanofiltrationZero liquid discharge

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Galilee Uy Semblante# Lai Yoke Lee# Say Leong Ong# Prannoy Chowdhury# Haijun Fang# Keng Boon Siah# How Yong Ng. Treatment of Industrial Reverse Osmosis Brine using Nanofiltration. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2019. Web. 6 Jul. 2025. <https://www.accesswater.org?id=-299260CITANCHOR>.
Galilee Uy Semblante# Lai Yoke Lee# Say Leong Ong# Prannoy Chowdhury# Haijun Fang# Keng Boon Siah# How Yong Ng. Treatment of Industrial Reverse Osmosis Brine using Nanofiltration. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2019. Accessed July 6, 2025. https://www.accesswater.org/?id=-299260CITANCHOR.
Galilee Uy Semblante# Lai Yoke Lee# Say Leong Ong# Prannoy Chowdhury# Haijun Fang# Keng Boon Siah# How Yong Ng
Treatment of Industrial Reverse Osmosis Brine using Nanofiltration
Access Water
Water Environment Federation
January 18, 2019
July 6, 2025
https://www.accesswater.org/?id=-299260CITANCHOR