International Journal of Chemical Studies
Vol. 1, Issue 4 (2013)
Effect of surface active agents on bioleaching of Silica and Iron oxide from Indian Chromite Ore by Silica resistant Aspergillus niger AB200
Author(s): Deblina Ball*, A.K.Banik
Abstract: Surface active agents were found to have a role in the surface culture fermentations required during bioleaching of silica and iron oxide from chromite ore. All the surface active agents i.e, Sodium Lauryl Sulphate, Tween 20, Tween 40, Tween 80 decreased cell growth of Aspergillus niger AB200, silica and iron oxide bioleaching from chromite ore. Sodium Lauryl Sulfate when added in 2% and 3% concentration in the fermentation medium on the zero day of fermentation, totally inhibited the growth of the microorganism as well as silica and iron oxide leaching from Chromite ore. But addition of Sodium Lauryl Sulfate in the fermentation medium on the 3rd and 5th day of fermentation also reduced growth and leaching to some extent. These surface active agents therefore if present in the fermentation medium of chromite bioleaching, reduces silica and iron oxide leaching and therefore should be avoided during the plant set up for bioleaching of chromite ore.
Pages: 179-182 | 981 Views 17 Downloads
How to cite this article:
Deblina Ball*, A.K.Banik. Effect of surface active agents on bioleaching of Silica and Iron oxide from Indian Chromite Ore by Silica resistant Aspergillus niger AB200. Int J Chem Stud 2013;1(4):179-182.