Investigation of New Polyester Nanofiltration (NF) Membrane Fouling with Humic Acid Solution | Zendy

N. A. Jalanni | Zendy; Mazrul Nizam Abu Seman | Zendy; Che Ku Mohammad Faizal | Zendy

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Investigation of New Polyester Nanofiltration (NF) Membrane Fouling with Humic Acid Solution

Author(s) -

N. A. Jalanni,

Mazrul Nizam Abu Seman,

Che Ku Mohammad Faizal

Publication year - 2013

Publication title -

jurnal teknologi

Language(s) - English

Resource type - Journals

eISSN - 2180-3722

pISSN - 0127-9696

DOI - 10.11113/jt.v65.2331

Subject(s) - nanofiltration , humic acid , membrane , chemistry , interfacial polymerization , triethanolamine , ultrafiltration (renal) , aqueous solution , thin film composite membrane , fouling , membrane fouling , chemical engineering , permeation , ultrapure water , polyamide , chloride , chromatography , polymer , polymer chemistry , organic chemistry , reverse osmosis , analytical chemistry (journal) , monomer , fertilizer , biochemistry , engineering

Ultrafiltration (UF) polyethersulfone membrane support has been modified by interfacial polymerization technique using reaction of aqueous solution and organic solution to form thin film composite (TFC) nanofiltration (NF) membrane. A new polyester layer were produced on the top surface of UF support by the reaction between triethanolamine (TEOA) (6% w/v) in the aqueous solution and solution containing trimesoyl chloride (TMC) (0.15%w/v) at different of reaction times (15, 25 and 35 min). The decrease of membrane permeability was related to the changes of the membrane morphology (i.e. membrane thickness) as the reaction times were increased. Irreversible membrane fouling has been studied by using humic acid as model of natural organic matter (NOM) solutions at two different pH values (7 and 3). At pH 7, it was observed that the NF TFC membranes exhibited practically less tendency to be irreversibly fouled by humic acid. However, the permeate flux was decreased and the irreversible fouling factor was increased with decreasing the pH to a value of 3.

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