Korean Journal of Chemical Engineering

, Volume 28, Issue 3, pp 825–830 | Cite as

Biosorption of cadmium ions using Pleurotus ostreatus: Growth kinetics, isotherm study and biosorption mechanism

  • Chia Chay Tay
  • Hong Hooi Liew
  • Chun-Yang Yin
  • Suhaimi Abdul-Talib
  • Salmijah Surif
  • Afiza Abdullah Suhaimi
  • Soon Kong Yong


The mycelial growth kinetics, cadmium biosorption capacity and main governing biosorption mechanism of Pleurotus ostreatus (oyster mushroom) have been determined in this study. The fungus mycelium exhibits a sigmoidal (S-shaped) growth curve in which the growth rates for the lag and exponential phases are 0.1 and 0.31 g/L·day, respectively. The grown fungus is subjected to elemental, infra-red and scanning electron microscopy-energy dispersive x-ray spectroscopy analyses, while biosorption data are fitted to established adsorption isotherm models, namely, Langmuir, Freundlich and Dubinin-Radushkevich. It is strongly suggested that the main governing mechanism involved is chemisorption due to good fitting of biosorption data to Langmuir and Dubinin-Radushkevich models with possibility of involvement of both ion exchange and complexation. Data presented in the study are very useful for design of future pilot- or industrial-scale biosorption water purification systems.

Key words

Pleurotus ostreatus Biosorbent Cadmium 


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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2010

Authors and Affiliations

  • Chia Chay Tay
    • 1
    • 2
  • Hong Hooi Liew
    • 1
  • Chun-Yang Yin
    • 3
  • Suhaimi Abdul-Talib
    • 1
  • Salmijah Surif
    • 4
  • Afiza Abdullah Suhaimi
    • 1
  • Soon Kong Yong
    • 5
  1. 1.Faculty of Civil EngineeringUniversiti Teknologi MARAShah Alam, SelangorMalaysia
  2. 2.Institute of Biological SciencesUniversity of MalayaKuala LumpurMalaysia
  3. 3.School of Chemical and Mathematical SciencesMurdoch UniversityMurdochAustralia
  4. 4.School of Environmental and Natural Resource Sciences, Faculty of Science and TechnologyUniversiti Kebangsaan MalaysiaUKM Bangi, SelangorMalaysia
  5. 5.International Education CentreUniversiti Teknologi MARAShah Alam, SelangorMalaysia

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