Surface properties of neutral components in copper column bioleaching of black shale samples
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Department of Chemical Engineering, School of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
Corresponding author
Zygmunt Sadowski
Department of Chemical Engineering, School of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
Department of Chemical Engineering, School of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
Physicochem. Probl. Miner. Process. 2018;54(4):1146-1151
KEYWORDS
adhesionsurface energyglass beadsbiohydrometallurgycolumn bioleachingbacteria cellpolyethylene pellets
TOPICS
ABSTRACT
The behaviour of glass beads and polyethylene pellets as the extra bacteria support in the fine black shale ore in the column bed bioreactor was compared. Capillary rise experiments enabled the calculation of the contact angle and the surface free energy of glass beads and polyethylene pellets. The results showed that the support material made up of polyethylene pellets yielded a higher copper extraction, which could be explained by conditions favourable to cell adhesion on the polyethylene surface.
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| eISSN: | 2084-4735 |
| ISSN: | 1643-1049 |
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