Boron removal from aqueous solution using curcumin-impregnated activated carbon

Azhar Abdul Halim, and Nor Alia Roslan, and Nor Shamsiah Yaacub, and Mohd. Talib Latif, (2013) Boron removal from aqueous solution using curcumin-impregnated activated carbon. Sains Malaysiana, 42 (9). pp. 1293-1300. ISSN 0126-6039


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This study was conducted to investigate the batch and fixed-bed adsorption properties of boron on curcumin-impregnated activated carbon (Cur-AC). The maximum boron removal was obtained at pH5.5 and 120 min of contact time. Langmuir and Freundlich isotherm models were applied and it was determined that the experimental data conformed to both models. The Langmuir maximum adsorption capacities for Cur-AC (5.00 mg/g) and regenerated Cur-AC (3.61 mg/g) were obviously higher than the capacity for bare activated carbon (0.59 mg/g). Kinetic studies indicated the adsorption of boron conformed to the intra-particle model. The highest boron removal in fixed-bed column adsorption was achieved up to 99% for the first 5 min at an inlet concentration of 890 mg/L and a flow rate of 8.0 mL/min. Thomas and the Yoon-Nelson models gave better fit to the experimental data. Cur-AC can be reused after elution processes with slightly lower adsorption capacity.

Item Type:Article
Keywords:Adsorption; boron; curcumin; fixed bed column; turmeric
Journal:Sains Malaysiana
ID Code:6472
Deposited By: ms aida -
Deposited On:26 Aug 2013 02:03
Last Modified:14 Dec 2016 06:41

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