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  1. Asian Journal of Biological Sciences
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Asian Journal of Biological Sciences

Year: 2013 | Volume: 6 | Issue: 7 | Page No.: 312-321

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Authors


M.D. Bala Kumaran

Country: India

M. Prasathkumar

Country: India

D.J. Mukesh Kumar

Country: India

P.T. Kalaichelvan

Country: India

Keywords


  • Biosorption
  • Aspergillus terreus
  • biosorbent
  • FTIR
  • SEM
Research Article

Utilization of Aspergillus terreus for the Biosorption of Hexavalent Chromium Ions

M.D. Bala Kumaran, M. Prasathkumar, D.J. Mukesh Kumar and P.T. Kalaichelvan
The heavy metal contamination of the water bodies is a worldwide environmental problem and its removal is a great challenge. This long term environmental hazard has received considerable attention in recent years. The use of low cost waste materials as adsorbents of heavy metal provides an eco friendly complimentary solution in removal of the dissolved metal ions and utilization of the waste materials. In the present investigation, biosorption of Cr (VI) ions was carried out using Aspergillus terreus dead biomass and the effect of various parameters such as pH, temperature, incubation time, initial metal concentration and initial biomass concentration which influenced the removal of Cr (VI) ions was studied. The experimental results showed that Aspergillus terreus is an effective biosorbent for the removal Cr (VI) ions. There was a strong influence of pH over biosorption process; especially over pH 1 it reached 54%. Similarly bisorption was observed higher when there was increase in the biomass concentration and decrease in initial metal concentration. Temperature also has a considerable impact on biosorption process, maximum at 27°C. Further, the untreated and treated biosorbent were characterized by FTIR spectral analyses and SEM micrograph to study the nature of bisorbent before and after the removal of Cr (IV) ions. The results of the present study revealed the potential use of Aspergillus terreus biomass as biosorbent for the removal of Cr (VI) from the aqueous environment.
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How to cite this article

M.D. Bala Kumaran, M. Prasathkumar, D.J. Mukesh Kumar and P.T. Kalaichelvan, 2013. Utilization of Aspergillus terreus for the Biosorption of Hexavalent Chromium Ions. Asian Journal of Biological Sciences, 6: 312-321.

URL: https://scialert.net/abstract/?doi=ajbs.2013.312.321

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