Effect of pH on lead removal from water using tree fern as the sorbent

Yuh Shan Ho

Research output: Contribution to journalArticle

165 Citations (Scopus)

Abstract

The sorption of lead from water onto an agricultural by-product, tree fern, was examined as a function of pH. The sorption processes were carried out using an agitated and baffled system. Pseudo-second-order kinetic analyses were performed to determine the rate constant of sorption, the equilibrium sorption capacity, and the initial sorption rate. Application of the pseudo-second-order kinetics model produced very high coefficients of determination. Results showed the efficiency of tree fern as a sorbent for lead. The optimum pH for lead removal was between 4 and 7, with pH 4.9 resulting in better lead removal. Ion exchange occurred in the initial reaction period. In addition, a relation between the change in the solution hydrogen ion concentration and equilibrium capacity was developed and is presented.

Original languageEnglish
Pages (from-to)1292-1296
Number of pages5
JournalBioresource Technology
Volume96
Issue number11
DOIs
Publication statusPublished - Jul 2005

Fingerprint

Lead removal (water treatment)
tree ferns
Ferns
adsorbents
fern
Sorbents
sorption
Sorption
Water
water
Lead
pH
Ion Exchange
kinetics
Kinetics
ion exchange
Byproducts
Rate constants
Ion exchange
effect

Keywords

  • Adsorption
  • Biosorption
  • Lead
  • pH
  • Pseudo-second-order
  • Tree fern

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Food Science
  • Process Chemistry and Technology
  • Applied Microbiology and Biotechnology

Cite this

Effect of pH on lead removal from water using tree fern as the sorbent. / Ho, Yuh Shan.

In: Bioresource Technology, Vol. 96, No. 11, 07.2005, p. 1292-1296.

Research output: Contribution to journalArticle

Ho, Yuh Shan. / Effect of pH on lead removal from water using tree fern as the sorbent. In: Bioresource Technology. 2005 ; Vol. 96, No. 11. pp. 1292-1296.
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