Department of Mining Engineering, Isfahan University of Technology, Isfahan, I.R. IRAN
Abstract
In the present study, the flocculation of fine-grained hematite was investigated in two size ranges using the bacterial cells and metabolic products of Bacillus licheniformis. More than 99% settling for fine and ultrafine particles was observed in the best condition by the bacterial cells in pH 5, and 7, respectively. Settling of fine and ultrafine particles improved by 33% and 18% compared to the control tests. Moreover, adsorption studies revealed that the settling behavior of each size, the fraction was pH-dependent and could be justified very well by the flocculant adsorption. In fact, although for fine hematite, maximum biosurfactant adhesion occurred in an acidic environment, for ultrafine hematite, neutral and basic pH caused the highest flocculant adsorption.
Sadeghizadeh, M., Hosseini, S. M. R., & Ahmadi, A. (2019). Influence of Particle Size on the Biological Settling Behavior of Hematite Using Bacillus licheniformis. Nashrieh Shimi va Mohandesi Shimi Iran, 38(1), 289-299.
MLA
Marzieh Sadeghizadeh; Seyed Mohammad Raoof Hosseini; Ali Ahmadi. "Influence of Particle Size on the Biological Settling Behavior of Hematite Using Bacillus licheniformis". Nashrieh Shimi va Mohandesi Shimi Iran, 38, 1, 2019, 289-299.
HARVARD
Sadeghizadeh, M., Hosseini, S. M. R., Ahmadi, A. (2019). 'Influence of Particle Size on the Biological Settling Behavior of Hematite Using Bacillus licheniformis', Nashrieh Shimi va Mohandesi Shimi Iran, 38(1), pp. 289-299.
VANCOUVER
Sadeghizadeh, M., Hosseini, S. M. R., Ahmadi, A. Influence of Particle Size on the Biological Settling Behavior of Hematite Using Bacillus licheniformis. Nashrieh Shimi va Mohandesi Shimi Iran, 2019; 38(1): 289-299.