Sorption Kinetics for the Removal of Cadmium and Zinc onto Palm Kernel Shell Based Activated Carbon

Sorption Kinetics for the Removal of Cadmium and Zinc onto Palm Kernel Shell Based Activated Carbon

The kinetics and mechanism of cadmium and zinc adsorption on palm kernel shell based activated carbons (PKSAC) have been studied. A series of batch laboratory studies were conducted in order to investigate the suitability of palm kernel shell based activated carbon (PKSAC) for the removal of cadmium (cadmium ions) and zinc (zinc ions) from their aqueous solutions. All batch experiments were carried out at pH 7.0 and a constant temperature of 30+-1°C using an incubator shaker that operated at 150 rpm. The kinetics investigated includes the pseudo first order, the pseudo-second order and the intraparticle diffusion models. The pseudo-second order model correlate excellently the experimental data, suggesting that chemisorption processes could be the rate-limiting step.Keywords: adsorption, cadmium, kinetics, palm kernel shell, zinc

Muhammad, Muhammad

Choong, Thomas S. Y.

G., Chuah T.

Yunus, Robiah

R., Suaraya A.

Jurnal Rekayasa Kimia & Lingkungan; Vol 7, No 4 (2010): Jurnal Rekayasa Kimia & Lingkungan

2356-1661

1412-5064

Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

2010-12-01

http://jurnal.unsyiah.ac.id/RKL/article/view/220/206

application/pdf

eng

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

Peer-reviewed Article

http://jurnal.unsyiah.ac.id/RKL/article/view/220