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Mika Erik Tapio Sillanpää

Batch studies of hexavalent chromium biosorption from mining wastewater using Aspergillus niger

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Onyekachukwu Love Ume, Federal University of Technology, Owerri
  • ,
  • Bernard Chukwuemeka Ekeoma, Universiti Teknologi Petronas
  • ,
  • Mohammad Yusuf, Universiti Teknologi Petronas
  • ,
  • Abdullah A. Al-Kahtani, King Saud University
  • ,
  • Mohd Ubaidullah, King Saud University
  • ,
  • Mika Sillanpää

The effects of selected process parameters in the biosorption of chromium (VI) ions for wastewater treatment using Aspergillus niger were studied whilst keeping temperature and pH constant. The biosorption capacity was observed to be optimum at 15 h contact time, 2.8 g biomass dose and 200 rpm agitation speed. The Jovanovic isotherm model best represented the biosorption equilibrium data, and the equilibrium biosorption capacity was found to be 0.0574 mg/g. The biosorption kinetics was investigated, and the pseudo-second-order kinetic model gave the best fit concerning the generated biosorption data according to linear regression analysis. Thermodynamic study of the biosorption process ascertained the values of standard thermodynamic parameters, including ΔGo, ΔHo, ΔSo, which helped characterize the biosorption process to be exothermic, physical, and spontaneous.

Original languageEnglish
Article number100490
JournalResults in Chemistry
Publication statusPublished - Jan 2022

Bibliographical note

Publisher Copyright:
© 2022 The Author(s)

    Research areas

  • Aspergillus niger, Biosorption Kinetics, Thermodynamics, Wastewater treatment

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