Effect of ozone on microfiltration as a pretreatment of seawater reverse osmosis

Byung Soo Oh; Ha Young Jang; Jaeweon Cho; Sungyun Lee; Eunkyung Lee; In S. Kim; Tae Mun Hwang; Joon Wun Kang

doi:10.1016/j.desal.2008.01.039

Effect of ozone on microfiltration as a pretreatment of seawater reverse osmosis

Byung Soo Oh, Ha Young Jang, Jaeweon Cho, Sungyun Lee, Eunkyung Lee, In S. Kim, Tae Mun Hwang, Joon Wun Kang

Department of Environmental and Safety Engineering

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

34 Scopus citations

Abstract

The main purpose of this study is to evaluate a combined ozone and microfiltration (MF) membrane process as pre-treatment of a seawater reverse osmosis (SWRO) system. During the filtration of seawater (SW) with the MF membranes, membrane fouling on both hydrophilic (PHI) and hydrophobic (PHO) MF membranes (PVDF, 0.22 μm pore size) was investigated by measuring the variation of flux. A significant decline of flux was observed in both PHI and PHO membranes, showing much higher fouling in the PHO membrane than the PHI membrane, with and without pre-filtration. Ozonation of the SW was performed to investigate the effect of ozone on fouling of the MF membrane. Reduction of membrane fouling by ozone occurred in only the PHO membrane. In the case of the PHI membrane, pre-ozonation of the SW led to more severe fouling during filtration than was the case for non-ozonated SW.

Original language	English
Pages (from-to)	90-97
Number of pages	8
Journal	Desalination
Volume	238
Issue number	1-3
DOIs	https://doi.org/10.1016/j.desal.2008.01.039
State	Published - Mar 2009

Keywords

Desalination
Fouling
Microfiltration
Ozone
Pre-treatment
Seawater

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title = "Effect of ozone on microfiltration as a pretreatment of seawater reverse osmosis",

abstract = "The main purpose of this study is to evaluate a combined ozone and microfiltration (MF) membrane process as pre-treatment of a seawater reverse osmosis (SWRO) system. During the filtration of seawater (SW) with the MF membranes, membrane fouling on both hydrophilic (PHI) and hydrophobic (PHO) MF membranes (PVDF, 0.22 μm pore size) was investigated by measuring the variation of flux. A significant decline of flux was observed in both PHI and PHO membranes, showing much higher fouling in the PHO membrane than the PHI membrane, with and without pre-filtration. Ozonation of the SW was performed to investigate the effect of ozone on fouling of the MF membrane. Reduction of membrane fouling by ozone occurred in only the PHO membrane. In the case of the PHI membrane, pre-ozonation of the SW led to more severe fouling during filtration than was the case for non-ozonated SW.",

keywords = "Desalination, Fouling, Microfiltration, Ozone, Pre-treatment, Seawater",

author = "Oh, {Byung Soo} and Jang, {Ha Young} and Jaeweon Cho and Sungyun Lee and Eunkyung Lee and Kim, {In S.} and Hwang, {Tae Mun} and Kang, {Joon Wun}",

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AU - Oh, Byung Soo

AU - Jang, Ha Young

AU - Cho, Jaeweon

AU - Lee, Sungyun

AU - Lee, Eunkyung

AU - Kim, In S.

AU - Hwang, Tae Mun

AU - Kang, Joon Wun

PY - 2009/3

Y1 - 2009/3

N2 - The main purpose of this study is to evaluate a combined ozone and microfiltration (MF) membrane process as pre-treatment of a seawater reverse osmosis (SWRO) system. During the filtration of seawater (SW) with the MF membranes, membrane fouling on both hydrophilic (PHI) and hydrophobic (PHO) MF membranes (PVDF, 0.22 μm pore size) was investigated by measuring the variation of flux. A significant decline of flux was observed in both PHI and PHO membranes, showing much higher fouling in the PHO membrane than the PHI membrane, with and without pre-filtration. Ozonation of the SW was performed to investigate the effect of ozone on fouling of the MF membrane. Reduction of membrane fouling by ozone occurred in only the PHO membrane. In the case of the PHI membrane, pre-ozonation of the SW led to more severe fouling during filtration than was the case for non-ozonated SW.

AB - The main purpose of this study is to evaluate a combined ozone and microfiltration (MF) membrane process as pre-treatment of a seawater reverse osmosis (SWRO) system. During the filtration of seawater (SW) with the MF membranes, membrane fouling on both hydrophilic (PHI) and hydrophobic (PHO) MF membranes (PVDF, 0.22 μm pore size) was investigated by measuring the variation of flux. A significant decline of flux was observed in both PHI and PHO membranes, showing much higher fouling in the PHO membrane than the PHI membrane, with and without pre-filtration. Ozonation of the SW was performed to investigate the effect of ozone on fouling of the MF membrane. Reduction of membrane fouling by ozone occurred in only the PHO membrane. In the case of the PHI membrane, pre-ozonation of the SW led to more severe fouling during filtration than was the case for non-ozonated SW.

KW - Desalination

KW - Fouling

KW - Microfiltration

KW - Ozone

KW - Pre-treatment

KW - Seawater

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DO - 10.1016/j.desal.2008.01.039

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SP - 90

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JO - Desalination

JF - Desalination

IS - 1-3

ER -

Effect of ozone on microfiltration as a pretreatment of seawater reverse osmosis

Abstract

Keywords

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