Effects of calcium competition on lead sorption by palm kernel fibre

Yuh Shan Ho, Augustine E. Ofomaja

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


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 languageEnglish
Pages (from-to)157-162
Number of pages6
JournalJournal of Hazardous Materials
Issue number1-3
Publication statusPublished - Apr 11 2005


  • 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


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