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Membrane Water Treatment Volume 6, Number 5, September 2015 , pages 379-392 DOI: https://doi.org/10.12989/mwt.2015.6.5.379 |
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Performance and characterization of PEG400 modified PVC ultrafiltration membrane |
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P.T.P. Aryanti, R. Yustiana, R.E.D. Purnama and I.G. Wenten
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| Abstract | ||
| Polyvinyl chloride (PVC) ultrafiltration membrane was prepared by blending 12 wt.% of PVC in N, N-dimethylacetimide (DMAc) with polyethylene glycol 400 (PEG400) as an additive. The influence of PEG400 concentration on the PVC membrane morphology, permeability, fouling and rejection were investigated. Fouling and rejection of the PVC membrane were characterized by dextran T-100 filtration. The results showed that membrane water flux was increased up to 682 Lm-2h-1 when 28 wt.% of PEG400 was added into the PVC membrane solution. The best membrane performance with a low fouling and a high selectivity was achieved by adding 12 wt.% concentration of PEG400, which resulted in 90% rejection of dextran and 90% of flux recovery ratio. At further addition of PEG400 concentration, irreversible fouling was starting to increase. A 90% of irreversible fouling was formed in the PVC membrane when more than 22 wt.% of PEG400 is added. | ||
| Key Words | ||
| ultrafiltration; PVC membrane; additive; hydrophilic; fouling | ||
| Address | ||
| (1) P.T.P. Aryanti, R. Yustiana, I.G. Wenten: Chemical Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40116, Indonesia; (2) R.E.D. Purnama: Production Division, PT Asahimas Chemical, Ds Gunung Sugih, Jalan Raya Anyer Km-122, Cilegon 42447, Indonesia. | ||