Preparation and characterization of pH-sensitive polyethersulfone hollow fiber membrane for flux control

Qian, Bingnan; Li, Jie; Wei, Qiang; Bai, Pengli; Fang, Baohong; Zhao, Changsheng

doi:10.1016/j.memsci.2009.08.026

Cited by 58 publications

(20 citation statements)

References 34 publications

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“…The feed solutions were prepared by dissolving PEG-10000 in double distilled water at a concentration of 0.1 g l -1 . The PEG-10000 solution was applied to the membrane using the apparatus described in our earlier study [52]. The permeant solution was collected and the flux calculated using Eq.…”

Section: Ultrafiltration Of the Peg Solutionmentioning

confidence: 99%

Biocompatibility of modified polyethersulfone membranes by blending an amphiphilic triblock co-polymer of poly(vinyl pyrrolidone)–b-poly(methyl methacrylate)–b-poly(vinyl pyrrolidone)

et al. 2011

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Section: Ultrafiltration Of the Peg Solutionmentioning

confidence: 99%

Biocompatibility of modified polyethersulfone membranes by blending an amphiphilic triblock co-polymer of poly(vinyl pyrrolidone)–b-poly(methyl methacrylate)–b-poly(vinyl pyrrolidone)

et al. 2011

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“…Once the nascent fibre contacts with water in the coagulation bath, the exchange process takes place from the outside of the membrane. This causes the formation of porous wall in the middle of the hollow fibre membrane (Qian et al 2009). The top surface image of the PES-SiO 2 membrane displayed uniform distribution of the SiO 2 nanoparticles (white spots) on the membrane surface.…”

Section: Sem and Edx Analysismentioning

confidence: 99%

The Removal of Bisphenol A in Water Treatment Plant Using Ultrafiltration Membrane System

Muhamad

Salim

Lau

et al. 2016

Water Air Soil Pollut

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Bisphenol A (BPA) is one of the recalcitrant contaminants that are detected in drinking water sources, as the conventional water treatment plant is incapable of removing it completely. This study was conducted to explore the performance of ultrafiltration (UF) membrane system for the BPA removal in which BPA was spiked in water sample collected from a treatment plant. The effects of process conditions that may influence the removal and flux performance of the membrane including operating pressure, feed pH and BPA concentration, and backwash cleaning were investigated. The results showed that an applied pressure of 1 bar was the optimum pressure for achieving good balance of BPA removal (95 %) and water flux (109 L m −2 h −1 ) compared to operating pressure of 0.5 and 1.5 bar. The variation of feed pH showed significant impact on BPA elimination with the highest rejection (90 %) achieved at pH 7 while the lowest removal (20 %) at pH 10. BPA concentration had no significant impact on BPA removal as high removal rate (>95 %) was observed regardless of feed concentration (between 10 and 100 μg L −1 ). The normalized flux showed decreasing trend with filtration cycle due to increased membrane resistance of BPA adsorption onto the membrane. The membrane cleaning via backwash was able to recover 90 % BPA removal even after three consecutive cycles of filtration. This indicated the promising performance of UF membrane system for industrial water treatment.Concentration of permeate (μg L −1 ) FRR Flux recovery ratio (%) J 0Pure water flux of membrane before cleaning (L m −2 h −1 ) J c Pure water flux of membrane after cleaning (L m −2 h −1 ) J wWater flux (L m −2 h −1 ) R Removal of BPA (%) R f Fouling resistance (m −1 ) R m Intrinsic membrane resistance (m −1 )

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“…In the phase inversion membrane production process, polymer is dissolved in a solvent and then exposed to a non-solvent as it is extruded through an annular die. The breadth of the distribution produced by the phase inversion process resulted from the finite rate of molecular diffusion through the viscous polymer solution during the membrane coagulation phase (Qian et al, 2009). While previous membrane improvements have resulted from reducing the viscosity of the polymer solution, it is unlikely that the breadth of the pore size distribution can be significantly reduced by further modification of the phase inversion process.…”

Section: Solute Clearancementioning

confidence: 99%

Polyethersulfone Hollow Fiber Membranes for Hemodialysis

Su¹,

Sun²,

Zhao³

2011

Progress in Hemodialysis - From Emergent Biotechnology to Clinical Practice

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Preparation and characterization of pH-sensitive polyethersulfone hollow fiber membrane for flux control

Cited by 58 publications

References 34 publications

Biocompatibility of modified polyethersulfone membranes by blending an amphiphilic triblock co-polymer of poly(vinyl pyrrolidone)–b-poly(methyl methacrylate)–b-poly(vinyl pyrrolidone)

Biocompatibility of modified polyethersulfone membranes by blending an amphiphilic triblock co-polymer of poly(vinyl pyrrolidone)–b-poly(methyl methacrylate)–b-poly(vinyl pyrrolidone)

The Removal of Bisphenol A in Water Treatment Plant Using Ultrafiltration Membrane System

Polyethersulfone Hollow Fiber Membranes for Hemodialysis

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