Metal ion removal from aqueous solution using physic seed hull

Masita Mohammad, Saikat Maitra, Naveed Ahmad, Azmi Bustam, T. K. Sen, Binay K. Dutta

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

The potential of physic seed hull (PSH), Jantropha curcas L. as an adsorbent for the removal of Cd2+ and Zn2+ metal ions from aqueous solution has been investigated. It has been found that the amount of adsorption for both Cd2+ and Zn2+ increased with the increase in initial metal ions concentration, contact time, temperature, adsorbent dosage and the solution pH (in acidic range), but decreased with the increase in the particle size of the adsorbent. The adsorption process for both metal ions on PSH consists of three stages-a rapid initial adsorption followed by a period of slower uptake of metal ions and virtually no uptake at the final stage. The kinetics of metal ions adsorption on PSH followed a pseudo-second-order model. The adsorption equilibrium data were fitted in the three adsorption isotherms-Freundlich, Langmuir and Dubinin-Radushkevich isotherms. The data best fit in the Langmuir isotherm indication monolayer chemisorption of the metal ions. The adsorption capacity of PSH for both Zn2+ and Cd2+ was found to be comparable with other available adsorbents. About 36-47% of the adsorbed metal could be leached out of the loaded PSH using 0.1M HCl as the eluting medium.

Original languageEnglish
Pages (from-to)363-372
Number of pages10
JournalJournal of Hazardous Materials
Volume179
Issue number1-3
DOIs
Publication statusPublished - Jul 2010
Externally publishedYes

Fingerprint

Physics
hull
Adsorption
Metal ions
Seed
Seeds
physics
aqueous solution
Metals
Ions
adsorption
seed
Adsorbents
ion
metal
isotherm
Isotherms
Chemisorption
Adsorption isotherms
Contacts (fluid mechanics)

Keywords

  • Adsorption
  • Cadmium (II)
  • Heavy metal
  • Physic seed hull
  • Zinc (II)

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Waste Management and Disposal
  • Environmental Chemistry
  • Environmental Engineering

Cite this

Metal ion removal from aqueous solution using physic seed hull. / Mohammad, Masita; Maitra, Saikat; Ahmad, Naveed; Bustam, Azmi; Sen, T. K.; Dutta, Binay K.

In: Journal of Hazardous Materials, Vol. 179, No. 1-3, 07.2010, p. 363-372.

Research output: Contribution to journalArticle

Mohammad, Masita ; Maitra, Saikat ; Ahmad, Naveed ; Bustam, Azmi ; Sen, T. K. ; Dutta, Binay K. / Metal ion removal from aqueous solution using physic seed hull. In: Journal of Hazardous Materials. 2010 ; Vol. 179, No. 1-3. pp. 363-372.
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