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|Title:||One-step cleaning method for flux recovery of an ultrafiltration membrane fouled by banknote printing works wastewater|
|Authors:||Zhang, G.J. |
|Keywords:||Banknote printing works wastewater|
Ultrafiltration (UF) cleaning method
|Citation:||Zhang, G.J., Liu, Z.Z., Song, L.F., Hu, J.Y., Ong, S.L., Ng, W.J. (2004-11-05). One-step cleaning method for flux recovery of an ultrafiltration membrane fouled by banknote printing works wastewater. Desalination 170 (3) : 271-280. ScholarBank@NUS Repository. https://doi.org/10.1016/j.desa1.2004.02.101|
|Abstract:||A method was developed to clean ultrafiltration (UF) membranes fouled by banknote printing works wastewater.The cleaning agent was comprised of 0.7 wt.% NaOH, 0.8 wt.% Na2EDTA, 0.3 wt.% Turkey red oil and 98.2 wt.% de-ionized water. Membrane flux recovered adequately when the cleaning agent was circulated for 20-30 min at 1.5 m/s and 50-60°C. The membrane surfaces before and after cleaning were characterized by SEM/EDX. The spent cleaning agent was analyzed by TOC and ICP. The results showed foulants were removed from the fouled membrane by the cleaning. Pilot-scale experiments were also conducted to validate the efficiency of the cleaning method. This one-step cleaning method replaced an existing four-step cleaning method and was employed to clean OF units in banknote printing works wastewater plants. © 2004 Elsevier B.V. All rights reserved.|
|Appears in Collections:||Staff Publications|
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