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Membrane Water Treatment Volume 9, Number 5, September 2018 , pages 353-361 DOI: https://doi.org/10.12989/mwt.2018.9.5.353 |
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Fouling characteristics of humic substances on tight polysulfone-based ultrafiltration membrane |
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Danu Ariono, Putu T.P. Aryanti, Anita K. Wardani and I.G. Wenten
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| Abstract | ||
| Fouling characteristics of humic substances on tight ultrafiltration (UF) membrane have been investigated. The tight UF membrane was prepared by blending polysulfone (PSf) in N.N-dimethylacetamide (DMAc) with 25%wt of Polyethylene glycol (PEG400) and 4%wt of acetone. Fouling characteristic of the modified PSf membrane was observed during peat water filtration in different trans-membrane pressure (TMP). It was found that the acetone modified membrane provided 13% increase in TMP during five hours of peat water filtration, where a stable flux was reached within 150 minutes. Meanwhile, the increase of TMP from 10 psig to 30 psig resulted in a fouling resistance enhancement of 60%. Furthermore, based on the fouling analysis, fouling mechanism at the first phase of filtration was attributed to intermediate blocking while the second phase was cake formation. | ||
| Key Words | ||
| fouling mechanism; humic substances; polysulfone membrane; peat water filtration; tight ultrafiltration | ||
| Address | ||
| Danu Ariono, Anita K. Wardani and I.G. Wenten: Chemical Engineering Department, Institut Teknologi Bandung, Jl. Ganesa 10, Bandung, Indonesia 40132 Putu T.P. Aryanti: Chemical Engineering Department, Universitas Jenderal Achmad Yani, Jl. Terusan Jendral Sudirman, Cimahi, Indonesia 40285 | ||
