TY - JOUR
T1 - Effects of calcium competition on lead sorption by palm kernel fibre
AU - Ho, Yuh Shan
AU - Ofomaja, Augustine E.
PY - 2005/4/11
Y1 - 2005/4/11
N2 - The kinetics of sorption of a mono-solute of lead ions and of a bi-solute of lead and calcium ions onto palm kernel fibre was investigated in a batch system. The experimental data were analysed based on an intraparticle diffusion equation and a pseudo-second-order mechanism, in both the mono- and bi-solute sorption systems, in order to predict the rate constant of sorption, the equilibrium capacity, and the initial sorption rate. The results indicate that the sorption mechanism is described by a pseudo-second-order equation. Intraparticle diffusion was significant in the lower-concentration systems. In addition, a modified intraparticle diffusion equation was applied to the sorption systems.
AB - The kinetics of sorption of a mono-solute of lead ions and of a bi-solute of lead and calcium ions onto palm kernel fibre was investigated in a batch system. The experimental data were analysed based on an intraparticle diffusion equation and a pseudo-second-order mechanism, in both the mono- and bi-solute sorption systems, in order to predict the rate constant of sorption, the equilibrium capacity, and the initial sorption rate. The results indicate that the sorption mechanism is described by a pseudo-second-order equation. Intraparticle diffusion was significant in the lower-concentration systems. In addition, a modified intraparticle diffusion equation was applied to the sorption systems.
KW - Adsorption
KW - Intraparticle diffusion
KW - Kinetics
KW - Lead
KW - Palm kernel fibre
UR - http://www.scopus.com/inward/record.url?scp=16344371758&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=16344371758&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2004.12.027
DO - 10.1016/j.jhazmat.2004.12.027
M3 - Article
C2 - 15811677
AN - SCOPUS:16344371758
SN - 0304-3894
VL - 120
SP - 157
EP - 162
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-3
ER -