Adsorption Kinetics of Pb(II), Cd(II), Zn(II) and Fe(III) onto Saponified Apple Waste

Authors

  • Puspa Lal Homagai Central Department of Chemistry
  • Hari Paudyal Central Department of Chemistry

DOI:

https://doi.org/10.3126/jncs.v23i0.2103

Keywords:

Adsorption, Saponified apple waste, Bioadsorption.

Abstract

Saponified apple waste gel was prepared in wet condition with calcium hydroxide at highly alkaline medium. The effect of initial concentration, contact time and pH of the solution was investigated. The maximum adsorption capacity onto this adsorbent was investigated for Fe(III), Cd(II), Zn(II) and Pb(II) at their optimal pH of 3, 6, 4.5 and 3.5 respectively. Langmuir isotherm and pseudo second-order kinetic model gave better explanation of the adsorption process. For binary mixture of Zn(II) and Cd(II), the separation factor and effect on adsorption capacity for both the metals were investigated.

Keywords: adsorption, saponified apple waste, bioadsorption.

DOI: 10.3126/jncs.v23i0.2103

Journal of Nepal Chemical Society, Vol. 23, 2008/2009 Page: 102-105

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Author Biographies

Puspa Lal Homagai, Central Department of Chemistry

Professor, Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal.

Hari Paudyal, Central Department of Chemistry

Professor, Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal.

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How to Cite

Homagai, P. L., & Paudyal, H. (2009). Adsorption Kinetics of Pb(II), Cd(II), Zn(II) and Fe(III) onto Saponified Apple Waste. Journal of Nepal Chemical Society, 23, 102–105. https://doi.org/10.3126/jncs.v23i0.2103

Issue

Vol. 23 (2009)

Section

Articles

License

© Journal of Nepal Chemical Society