Rejection characteristics of organic and inorganic pollutants by ultra low-pressure nanofiltration of surface water for drinking water treatment

Thanuttamavong, Monthon; Yamamoto, Kazuo; Oh, Jeong Ik; Choo, Kwang Ho; Choi, Sang June

doi:10.1016/s0011-9164(02)00420-4

Cited by 76 publications

(23 citation statements)

References 5 publications

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“…Removal of organic micropollutants was also investigated by other researchers [36,37]. Koyuncu and Yazgan [37] had good results in treating salty and polluted water from Kucukcekmece Lake in Istanbul using the TFC-S NF membrane.…”

Section: Surfitce Watermentioning

confidence: 96%

A comprehensive review of nanofiltration membranes:Treatment, pretreatment, modelling, and atomic force microscopy

et al. 2004

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Section: Surfitce Watermentioning

confidence: 96%

A comprehensive review of nanofiltration membranes:Treatment, pretreatment, modelling, and atomic force microscopy

et al. 2004

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“…The separation mechanism of NF membrane involves a combination of steric (size exclusion) effect and electric (Donnan exclusion) effect. In the last few decades NF membrane technique has gained significant attention and be applied successfully in many fields such as drinking water [7][8][9][10][11][12][13], dye wastewater [14][15][16][17][18][19], food industry [20,21] and other industrial applications [22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Effect of non-solvent additives on the morphology and separation performance of poly( m -phenylene isophthalamide) (PMIA) hollow fiber nanofiltration membrane

Wang

Zhao

et al. 2015

Desalination

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• PMIA hollow fiber NF membranes were fabricated.• Effects of non-solvent additives on the morphology and separation performance were studied.• High content of non-solvent additives resulted in narrow pore size, pore size distribution and high rejection. Newly designed poly(m-phenylene isophthalamide) (PMIA) hollow fiber nanofiltration membranes were fabricated containing non-solvent additives, i.e., lithium chloride (LiCl), acetone and PVP by dry-jet wet spinning technology. The effects of non-solvent additives on the morphology and separation performance were investigated. The addition of non-solvent additives in the dopes enhanced the viscosity significantly. The membrane crosssections were monitored by scanning electron microscopy (SEM). The results indicated that by increasing the concentration of non-solvent additives, the morphologies changed from finger-like to sponge-like, and the outer skin-layer thickness was slightly increased. The rejections to various salts and pure water permeability (PWP) of these membranes were determined. The mean pore size and molecular weight cut-off (MWCO) were estimated using the solute rejection method. The results showed that the salt rejection of the membranes decreased in the order of R(Na 2 SO 4 ) N R(MgSO 4 ) N R(NaCl) N R(MgCl 2 ), and as the concentrations of non-solvent additives increased, the PWPs, mean pore sizes and MWCOs of the PMIA membranes all decreased. The atomic force microscope (AFM) experiments demonstrated that a smooth membrane surface was formed by adding non-solvent additives. Furthermore, the stress values at break, the elongation at break and the elastic modulus of the fibers increased as non-solvent additive contents increased. a b s t r a c t a r t i c l e i n f o

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“…It adsorbed onto the membrane surface by their hydrophobic tail [21] the same as the surfactant. In the case of the dye, it fouled on the negatively charged membrane by colloidal formation at the membrane surface [8].…”

Section: Effect Of Membrane Property and Single Organic Foulants On Rmentioning

confidence: 99%

Experimentation and modeling of foulant interaction and reverse osmosis membrane fouling during textile wastewater reclamation

Srisukphun

Chiemchaisri

Urase

et al. 2009

Separation and Purification Technology

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Rejection characteristics of organic and inorganic pollutants by ultra low-pressure nanofiltration of surface water for drinking water treatment

Cited by 76 publications

References 5 publications

A comprehensive review of nanofiltration membranes:Treatment, pretreatment, modelling, and atomic force microscopy

A comprehensive review of nanofiltration membranes:Treatment, pretreatment, modelling, and atomic force microscopy

Effect of non-solvent additives on the morphology and separation performance of poly( m -phenylene isophthalamide) (PMIA) hollow fiber nanofiltration membrane

Experimentation and modeling of foulant interaction and reverse osmosis membrane fouling during textile wastewater reclamation

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