Effect of additive contents on the performances and structural properties of asymmetric polyethersulfone (PES) nanofiltration membranes

Ismail, Ahmad Fauzi; Hassan, Abdul Rahman

doi:10.1016/j.seppur.2006.11.002

Cited by 107 publications

(52 citation statements)

References 28 publications

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“…This phenomenon is resulted from the non-uniform distribution of micropores as a result of the addition of PVP in the membrane dope solution. Ismail & Hassan [15] also found the same finding in their study. Plus, this result could be strongly supported with Barth et al [16] where their study also shows the same result.…”

Section: Resultssupporting

confidence: 77%

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The effectiveness Study of Different Membranes in Treating Industrial Wastewater

et al. 2016

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Abstract. This paper focuses on the effectiveness study of different membranes in treating petroleum based wastewater. Polysulfone (PSF) and Polyether Sulfone (PES) were prepared using phase inversion method in NMP solvent. The composition of membrane was varied by manipulating the PVP additives concentration (5 wt%) in the membrane dope solution. The morphological study of prepared membranes was analysed using Field Emission Scanning Electron Microscope (FESEM) while the permeating flux and Chemical Oxygen Demand (COD) rejection rate were determined accordingly by using the refinery wastewater as the feed. The result found that the permeating flux increased as the operating pressure increased. However, for COD rejection, it was reported that only certain membrane show the best rejection. To clarify and support this finding, the membrane performance was further analyzed by determining the Total Dissolved Solid (TDS) rejection for PSF2 and PES2 membrane samples. The result showed that both membranes recorded relatively high TDS rejection which can be justified by the morphological studies of each samples. Therefore, this study proved that the membrane treatment have a high potential to treat the industrial wastewater for a larger scale.

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Section: Resultssupporting

confidence: 77%

“…Hence, as the operating pressure increase, so the membrane flux also increase, hence causing the rejection rate decrease. The result for PES2 logical accordingly with Ismail & Hassan [15] research.…”

Section: Cod Rejection Ratesupporting

confidence: 75%

The effectiveness Study of Different Membranes in Treating Industrial Wastewater

et al. 2016

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“…Besides that, symmetric membrane have cylindrical, sponge and dense film structure. For asymmetric, it can be categorized into integralasymmetric and thin film composite [11]. Figure 1 presented the surface and cross-section of SEM images of membranes with different composition.…”

Section: Membrane Morphologymentioning

confidence: 99%

Effect of activated carbon in PSF-PEI-Ag symmetric membrane

et al. 2016

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Abstract. Polysulfone (Psf) composite membrane consist of activated carbon, polyethyleneimine and silver nitrate was prepared by phase inversion. The activated carbon (AC) act as adsorbent to adsorb heavy metal present in synthetic waste water while polysulfone membrane act as support. Phase inversion was carried out on different composition of activated carbon from 0 to 0.9% while other component are remain constant. The surface morphology of composite membrane was characterized by scanning electron microscopy (SEM) while heavy metal absorption was quantified by atomic absorption spectrometer (AAS). The SEM image show symmetric membrane matrix with sponge structure. The composite membrane with 0.9wt% AC has the highest water flux as well as removal of heavy metal (chromium, lead, silver and cadmium) compare to composite membrane with 0.3wt% AC and 0.5wt% AC. The percentage of heavy metal reduction by composite membrane 0.9wt% AC was 35% cadmium, 19% chromium, 16% silver and 2% lead. The result indicated that the introduction of 0.9wt% AC indeed plays an important role towards enhancing the adsorption of heavy metal in water.

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“…These limitations of PES membrane is overcome by enhancing the surface hydrophilicity of the PES using different methods [27][28][29]. A number of research studies have been reported on the hydrophilization of PES membranes [30][31][32][33][34][35][36][37][38]. In these studies, a hydrophilic additive (usually inorganic or polymeric) is often added to the casting dope to prepare hydrophilic composite PES membranes.…”

Section: Introductionmentioning

confidence: 99%

Improved Performance of CaCl 2 Incorporated Polyethersulfone Ultrafiltration Membranes

Krishnamoorthy

Velu

2016

Period. Polytech. Chem. Eng.

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Effect of additive contents on the performances and structural properties of asymmetric polyethersulfone (PES) nanofiltration membranes

Cited by 107 publications

References 28 publications

The effectiveness Study of Different Membranes in Treating Industrial Wastewater

The effectiveness Study of Different Membranes in Treating Industrial Wastewater

Effect of activated carbon in PSF-PEI-Ag symmetric membrane

Improved Performance of CaCl 2 Incorporated Polyethersulfone Ultrafiltration Membranes

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