Foulant analysis of a reverse osmosis membrane used pretreated seawater

Jeong, Sanghyun; Kim, Sung-Jo; Kim, Lan Hee; Shin, Myung Seop; Vigneswaran, S.; Nguyễn, Tiến Vinh; Kim, In Soo

doi:10.1016/j.memsci.2012.11.007

Cited by 60 publications

(29 citation statements)

References 26 publications

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“…Inorganic scaling could be easily reduced through chemical and physical methods. In contrast, organic fouling and biofouling are more difficult to control and in fact these two kinds of fouling are kind of synergistic (Jeong et al, 2013). For example, bacteria produce EPS during biofilm formation.…”

Section: Membrane Fouling Control Strategiesmentioning

confidence: 99%

A review of reverse osmosis membrane fouling and control strategies

Jiang

Li²

2017

Science of The Total Environment

750

362

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Reverse osmosis (RO) membrane technology is one of the most important technologies for water treatment. However, membrane fouling is an inevitable issue. Membrane fouling leads to higher operating pressure, flux decline, frequent chemical cleaning and shorter membrane life. This paper reviews membrane fouling types and fouling control strategies, with a focus on the latest developments. The fundamentals of fouling are discussed in detail, including biofouling, organic fouling, inorganic fouling and colloidal fouling. Furthermore, fouling mitigation technologies are also discussed comprehensively. Pretreatment is widely used in practice to reduce the burden for the following RO operation while real time monitoring of RO has the advantage and potential of providing support for effective and efficient cleaning. Surface modification could slow down membrane fouling by changing surface properties such as surface smoothness and hydrophilicity, while novel membrane materials and synthesis processes build a promising future for the next generation of RO membranes with big advancements in fouling resistance. Especially in this review paper, statistical analysis is conducted where appropriate to reveal the research interests in RO fouling and control.Graphic Abstract

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Section: Membrane Fouling Control Strategiesmentioning

confidence: 99%

A review of reverse osmosis membrane fouling and control strategies

Jiang

Li²

2017

Science of The Total Environment

750

362

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“…This is because fouling in natural water sources is attributed to mixed organic compounds that are referred to as natural organic matter (NOM) [12][13][14]. At the same time, in natural water sources such as seawater, the presence of salinity and inorganic salts will also contribute to complex membrane fouling development [15,16].…”

Section: Introductionmentioning

confidence: 99%

Interaction of humic substances on fouling in membrane distillation for seawater desalination

Naidu

Jeong

Vigneswaran

2015

Chemical Engineering Journal

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103

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“…PN-like (P) peaks (peaks T and B) represent materials containing tryptophan-like (alpha-amino acid used in PN biosynthesis) and tyrosine-like (4-hydroxyphenylalanine used by cells to synthesize PN) compounds. Peaks A, M and C are indicative of humic-like compounds but peaks M and C have specifically been related to fulvic-like materials [43]. Hence, the sum of peaks M and C is considered as fulvic.…”

Section: Fluorescent Fractions Of Aommentioning

confidence: 99%

Advanced characterization of dissolved organic matter released by bloom-forming marine algae

Rehman¹,

Jeong²,

Tabatabai³

et al. 2017

Desalination and Water Treatment

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a b s t r a c tAlgal organic matter (AOM), produced by marine phytoplankton during bloom periods, may adversely affect the performance of membrane processes in seawater desalination. The polysaccharide fraction of AOM has been related to (bio)fouling in micro-filtration and ultrafiltration, and reverse osmosis membranes. However, so far, the chemical structure of the polysaccharides released by bloom-forming algae is not well understood. In this study, dissolved fraction of AOM produced by three algal species (Chaetoceros affinis, Nitzschia epithemoides and Hymenomonas spp.) was characterized using liquid chromatography-organic carbon detection (LC-OCD) and fluorescence spectroscopy. Chemical structure of polysaccharides isolated from the AOM solutions at stationary phase was analyzed using proton nuclear magnetic resonance ( 1 H-NMR). The results showed that production and composition of dissolved AOM varied depending on algal species and their growth stage. AOM was mainly composed of biopolymers (BP; i.e., polysaccharides and proteins [PN]), but some refractory substances were also present. 1 H-NMR spectra confirmed the predominance of carbohydrates in all samples. Furthermore, similar fingerprints were observed for polysaccharides of two diatom species, which differed considerably from that of coccolithophores. Based on the findings of this study, 1 H-NMR could be used as a method for analyzing chemical profiles of algal polysaccharides to enhance the understanding of their impact on membrane fouling.

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Foulant analysis of a reverse osmosis membrane used pretreated seawater

Cited by 60 publications

References 26 publications

A review of reverse osmosis membrane fouling and control strategies

A review of reverse osmosis membrane fouling and control strategies

Interaction of humic substances on fouling in membrane distillation for seawater desalination

Advanced characterization of dissolved organic matter released by bloom-forming marine algae

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