Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 157-162 |
| Number of pages | 6 |
| Journal | Journal of Hazardous Materials |
| Volume | 120 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - Apr 11 2005 |
Keywords
- Adsorption
- Intraparticle diffusion
- Kinetics
- Lead
- Palm kernel fibre
ASJC Scopus subject areas
- Chemical Health and Safety
- Process Chemistry and Technology
- Safety, Risk, Reliability and Quality
- Environmental Engineering