Particle effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus
| dc.contributor.author | Nemati, M | |
| dc.contributor.author | Lowenadler, J | |
| dc.contributor.author | Harrison, S T L | |
| dc.date.accessioned | 2016-08-15T12:28:31Z | |
| dc.date.available | 2016-08-15T12:28:31Z | |
| dc.date.issued | 2000 | |
| dc.date.updated | 2016-08-15T12:26:46Z | |
| dc.description.abstract | The effect of mineral particle size on the bioleaching of pyrite by the acidophilic thermophileSulfolobus metallicus was investigated in a batch bioreactor. Decreasing the particle size from a mean diameter of 202 micron (size fraction: 150–180 micron) to a mean diameter of 42.5 micron (size fraction: 25–45 micron) enhanced the bioleaching rate from 0.05 kg m−3 h−1 to 0.098 kg m−3 h−1. The particle size distribution of the mineral in this range did not influence the morphology and growth kinetics of the cells. The values of specific growth rate (μ) and yield factor (Y) were 0.018–0.025 h−1 and 0.67 × 1011–1.45 × 1011 cells (g iron)−1, respectively. Decreasing the particle size of the mineral to a mean diameter of 6.40 micron (size fraction <25 micron) adversely influenced the activity of the cells. The presence of fine particles apparently damaged the structure of the cells, resulting in their inability to oxidise pyrite. | en_ZA |
| dc.description.uri | http://link.springer.com/article/10.1007/s002530050005 | |
| dc.identifier | http://dx.doi.org/10.1007/s002530050005 | |
| dc.identifier.apacitation | Nemati, M., Lowenadler, J., & Harrison, S. T. L. (2000). Particle effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus. <i>Applied Microbiology and Biotechnology</i>, http://hdl.handle.net/11427/21243 | en_ZA |
| dc.identifier.chicagocitation | Nemati, M, J Lowenadler, and S T L Harrison "Particle effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus." <i>Applied Microbiology and Biotechnology</i> (2000) http://hdl.handle.net/11427/21243 | en_ZA |
| dc.identifier.citation | Nemati, M., Lowenadler, J., & Harrison, S. T. L. (2000). Particle size effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus (BC). Applied Microbiology and Biotechnology, 53(2), 173-179. | en_ZA |
| dc.identifier.issn | 0175-7598 | en_ZA |
| dc.identifier.ris | TY - Journal Article AU - Nemati, M AU - Lowenadler, J AU - Harrison, S T L AB - The effect of mineral particle size on the bioleaching of pyrite by the acidophilic thermophileSulfolobus metallicus was investigated in a batch bioreactor. Decreasing the particle size from a mean diameter of 202 micron (size fraction: 150–180 micron) to a mean diameter of 42.5 micron (size fraction: 25–45 micron) enhanced the bioleaching rate from 0.05 kg m−3 h−1 to 0.098 kg m−3 h−1. The particle size distribution of the mineral in this range did not influence the morphology and growth kinetics of the cells. The values of specific growth rate (μ) and yield factor (Y) were 0.018–0.025 h−1 and 0.67 × 1011–1.45 × 1011 cells (g iron)−1, respectively. Decreasing the particle size of the mineral to a mean diameter of 6.40 micron (size fraction <25 micron) adversely influenced the activity of the cells. The presence of fine particles apparently damaged the structure of the cells, resulting in their inability to oxidise pyrite. DA - 2000 DB - OpenUCT DP - University of Cape Town J1 - Applied Microbiology and Biotechnology LK - https://open.uct.ac.za PB - University of Cape Town PY - 2000 SM - 0175-7598 T1 - Particle effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus TI - Particle effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus UR - http://hdl.handle.net/11427/21243 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/21243 | |
| dc.identifier.vancouvercitation | Nemati M, Lowenadler J, Harrison STL. Particle effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus. Applied Microbiology and Biotechnology. 2000; http://hdl.handle.net/11427/21243. | en_ZA |
| dc.language | eng | en_ZA |
| dc.publisher | Springer Verlag | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| dc.source | Applied Microbiology and Biotechnology | en_ZA |
| dc.source.uri | http://link.springer.com/journal/253 | |
| dc.subject.other | Particle | |
| dc.subject.other | bioleaching | |
| dc.subject.other | pyrite | |
| dc.subject.other | acidophilic thermophile Sulfolobus | |
| dc.subject.other | metallicus | |
| dc.title | Particle effects in bioleaching of pyrite by acidophilic thermophile Sulfolobus metallicus | en_ZA |
| dc.type | Journal Article | en_ZA |
| uct.type.filetype | Text | |
| uct.type.filetype | Image | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Article | en_ZA |