| dc.creator |
Akcil, Ata |
|
| dc.creator |
PANDA, Sandeep |
|
| dc.creator |
MISHRA, Srabanı |
|
| dc.creator |
ERUST, Ceren |
|
| dc.date |
2018-01-14T21:00:00Z |
|
| dc.date.accessioned |
2020-10-06T09:47:36Z |
|
| dc.date.available |
2020-10-06T09:47:36Z |
|
| dc.identifier |
39c9f4f1-1167-4843-ad9e-10f29b9c949b |
|
| dc.identifier |
10.1016/j.jhazmat.2017.08.038 |
|
| dc.identifier |
https://avesis.sdu.edu.tr/publication/details/39c9f4f1-1167-4843-ad9e-10f29b9c949b/oai |
|
| dc.identifier.uri |
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/57656 |
|
| dc.description |
Simultaneous multi-metal leaching from industrial pyrite ash is reported for the first time using a novel bioreactor system that allows natural diffusion of atmospheric O-2 and CO2 along with the required temperature maintenance. The waste containing economically important metals (Cu, Co, Zn &As) was leached using an adapted consortium of meso-acidophilic Fe2+ and S oxidising bacteria. The unique property of the sample supported adequate growth and activity of the acidophiles, thereby, driving the (bio) chemical reactions. Oxido-reductive potentials were seen to improve with time and the system's pH lowered as a result of active S oxidation. Increase in sulphur dosage (>1 g/L) and agitation speed (>150 rpm) did not bear any significant effect on metal dissolution. The consortium was able to leach 94.01% Cu (11.75% dissolution/d), 98.54% Co (12.3% dissolution/d), 75.95% Zn (9.49% dissolution/d) and 60.80% As (7.6% dissolution/d) at 150 rpm, 1 g/L sulphur, 30 degrees C in 8 days. (C) 2017 Elsevier B.V. All rights reserved. |
|
| dc.language |
eng |
|
| dc.rights |
info:eu-repo/semantics/closedAccess |
|
| dc.title |
A novel bioreactor system for simultaneous mutli-metal leaching from industrial pyrite ash: Effect of agitation and sulphur dosage |
|
| dc.type |
info:eu-repo/semantics/article |
|