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Optimization of operating conditions for biosorption of chromium by Aspergillus niger isolated from contaminated soil

Author Affiliations

  • 1SNGGPG College, Bhopal, Madhya Pradesh, India
  • 2Barkatullah University, Bhopal, Madhya Pradesh, India

Int. Res. J. Biological Sci., Volume 10, Issue (4), Pages 29-33, November,10 (2021)


In recent years, the fungal biomass is used as a biosorbent for the removal of hazardous pollutants and heavy metal ions from various industrial effluents has gotten a lot of attention. The metal tolerant fungal isolates were isolated from the selected polluted sites and screened for their tolerance indices and minimum inhibitory concentration (MIC). The fungal isolate possessing highest tolerance and MIC was identified as Aspergillus niger was further used as a biosorbent to remove hexavalent chromium ions Cr(VI) in this investigation. From the present study, pH 6.0, temperature of 35°C and contact time of 120 minute showed highest removal of 78.8 percent from the aqueous metal solution containing chromium concentration of 150mg/L. The current study discovered that fungus from metal-polluted locations have better metal tolerance and biosorption effectiveness, and hence might be used for heavy metal biosorption.


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