New Polyester Nanofiltration (NF) Membrane for Humic Acid Removal

Nurul Ain Jalanni; Mazrul Nizam Abu Seman; Che Ku Mohammad Faizal

doi:10.4028/www.scientific.net/AMR.1107.383

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1107New Polyester Nanofiltration (NF) Membrane for...

New Polyester Nanofiltration (NF) Membrane for Humic Acid Removal

Abstract:

Interfacial polymerization of a thin film composite (TFC) layer on top of a miroporous support membrane or other porous substrate is one of adequate method to form nanofiltration membrane in order to remove humic acid. Ultrafiltration (UF) polyethersulfone (PES) was used as membrane base support. Reaction occurred on the surface of membrane between two phase which are triethanolamine (TEOA) and trimesoyl chloride (TMC) as aqueous solution and organic solution respectively. Membrane that produced characterized by permeability, charged solutes rejection including salt solutions (NaCl and Na₂SO₄₎and humic acid removal. Properties of membrane can be attributed with the changes of monomer concentration and reaction time. Pure water flux J_w for membranes calculated as a function of applied pressure to membrane ΔP. Thus, flux increased linearly with operating pressure is applied to membrane where meets Hagen-Poiseuille equation and gradient of every straight line give pure water permeability data. The variation of reaction time (15, 25 and 35 min) at 8% (w/v) monomer concentrations can affect the properties of the membrane produced and decreasing water permeabilities. The rejection order of the membrane changed from 0.001 M Na₂SO₄ > 0.1M Na₂SO₄> 0.001M NaCl > 0.1M NaCl. Humic acid removal resulted almost fully rejection showed that nanofiltration membrane is one of the best methods in water treatment technology.

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Periodical:

Advanced Materials Research (Volume 1107)

Pages:

383-388

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1107.383

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Online since:

June 2015

Authors:

Nurul Ain Jalanni*, Mazrul Nizam Abu Seman, Che Ku Mohammad Faizal

Keywords:

Humic Acid (HA), Interfacial Polymerization, Nanofiltration, Thin Film Composite

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