Abstract

Adsorption process using Surfactant-impregnated Activated Carbon (SIAC) was studied to remove reactive dye from an aqueous solution. The study on additional of cleavable cationic surfactant on the adsorption of Reactive Blue 4 (RB4) dye onto activated carbon was investigated using palm-based esterquat (PBE) surfactant. The effect of surfactant concentration on dye removal was discussed to assess the efficiency of adsorption process for both direct and isolated impregnation method. Results obtained from this study shows that the best RB4 dye removal obtained was 39.67% at PBE concentration of 128 mg/L in 5 hours contact time by direct impregnation method while by isolated impregnation method, the RB4 dye removal achieved was 84.19% in 7 hours contact time at PBE concentration of 38 mg/L. It was observed that adsorption of RB4 dye was greatly enhanced by modification of AC with cleavable cationic surfactant impregnated by indirect method compared to direct method.

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