Abstract—This study was designed to investigate the removal of reactive dyes mxiture, C.I Reactive Black 5 (RB5) and C.I Reactive Orange 16 (RO16) using Micellar-enhanced ultrafiltration (MEUF). A cationic surfactant, cetylpyridinium chloride (CPC) was used for the MEUF and its effectiveness was investigated. The critical micelle concentration of CPC was obtained at 0.38 g/L via conductivity method. The diameter of micelles (CPC: 0.6 g/L) obtained at range of 2.3 nm to 6.5 nm diameter. The MEUF process was performed using cellulose acetate membrane with 20,000 MWCO and the surfactant concentration was varied from 0.5 g/L to 1.0 g/L at 400 kPa operating pressure. The results show that the highest dye rejection achieved was 78.0% and 79.2% of RB5 and RO16 for single dye removal while 76.4% and 81.6% of RB5 and RO16 for RB5-RO16 mixture removal from aqueous solution.
Index Terms—Cationic surfactant, critical micelleconcentration, micellar-enhanced ultrafiltration, reactive dye.
The authors are with the Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia (e-mail:sitiwahida@salam.uitm.edu.my, ruzitah@salam.uitm.edu.my,drsharifah@salam.uitm.edu.my).
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Cite: Puasa S. W., Ruzitah M. S., and Sharifah A. S. A. K., "Competitive Removal of Reactive Black 5/Reactive Orange 16 from Aqueous Solution via Micellar-Enhanced Ultrafiltration," International Journal of Chemical Engineering and Applications vol. 3, no. 5, pp. 354-358, 2012.
