BIOREMEDIATION OF CHROMIUM(VI) FROM AQUEOUS SOLUTION BY Aspergillus niger: OPTIMIZATION OF PROCESS PARAMETERS

2016 ◽  
Vol 15 (11) ◽  
pp. 2551-2558 ◽  
Author(s):  
Habibollah Younesi ◽  
Farshid Ghorbani
Keyword(s):  
Aqueous Solution ◽  
Aspergillus Niger ◽  
Process Parameters ◽  
Chromium Vi ◽  
Optimization Of Process Parameters

Biosorption of Cr(VI) from Aqueous Solution by Aspergillus Niger

2011 ◽  
Vol 236-238 ◽  
pp. 155-158
Author(s):  
Li Fang Zhang ◽  
Shu Juan Dai ◽  
Ying Ying Chen
Keyword(s):  
Aqueous Solution ◽  
Aspergillus Niger ◽  
Contact Time ◽  
Correlation Coefficients ◽  
Second Order ◽  
Order Kinetic ◽  
Chromium Vi ◽  
Biosorption Process ◽  
Initial Ph ◽  
Pseudo Second Order

In this study, Biosorption of hexavalent chromium ions from aqueous solution by using biomass ofAspergillus nigerwas investigated. Different parameters such as initial pH, biosorbent amount, contact time and temperature were explored. The biosorption of Cr (VI) ions was highly pH dependent and the optimum pH for biosorption of Cr (VI) ions was found to be 2.0. Biosorption capacity of Cr (VI) ions decreased with increased biosorbent dosage. The biosorption equilibrium was established in about 120min of contact time. Equilibrium uptake of Cr (VI) ions onto biomass increased from 12.57 mg/g at 20°C to 19.48 mg/g at 40 °C for 20mg/L Cr (VI) ions concentration. The biosorption process followed the pseudo-second order kinetic model and the correlation coefficients from the pseudo-second order model were all higher than 0.997 in all studied temperatures. These results suggest that the biomass ofAspergillus nigeris a promising biosorbent for removal of chromium (VI) ions from the wastewater.

scholarly journals Optimization of process parameters for improved production of biomass protein from Aspergillus niger using banana peel as a substrate

2019 ◽  
Vol 28 (6) ◽  
pp. 1693-1702 ◽  
Author(s):  
Md. Mostafa Kamal ◽  
Md. Rahmat Ali ◽  
Mohammad Rezaul Islam Shishir ◽  
Md. Saifullah ◽  
Md. Raihanul Haque ◽  
...  
Keyword(s):  
Aspergillus Niger ◽  
Process Parameters ◽  
Banana Peel ◽  
Optimization Of Process Parameters
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