A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems
| dc.contributor.author | Govender, Elaine | |
| dc.contributor.author | Kotsiopoulos, Thanos | |
| dc.contributor.author | Harrison, Sue | |
| dc.date.accessioned | 2017-09-11T07:07:34Z | |
| dc.date.available | 2017-09-11T07:07:34Z | |
| dc.date.issued | 2015-11 | |
| dc.description.abstract | Multiple mini-column reactors, loaded with identically constructed ore samples representing grab samples of a larger heap, were used to study the behaviour of solution tracers to elucidate solution diffusion, dispersion and transport. The tracers were either introduced to the ore bed as a pulse, included during agglomeration of the ore or introduced to the system by submerging the ore bed. These methods of tracer introduction allowed for the characterisation of flow interchange in unsteady state systems. The resulting concentration-time distribution curves were analysed to allow characterisation of flow dispersion and diffusion, which facilitates exchange between the fast flowing and largely stagnant liquid phases. Preliminary results support the presence of distinct stagnant and flowing regions within the agglomerated ore bed. Agglomeration with the tracer promotes increased retention on the ore; potentially enhancing microbial transport via increased solution exchange after the initial period of attachment. | en_ZA |
| dc.identifier.apacitation | Govender, E., Kotsiopoulos, T., & Harrison, S. (2015). A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems. <i>Advanced Materials Research</i>, http://hdl.handle.net/11427/25138 | en_ZA |
| dc.identifier.chicagocitation | Govender, Elaine, Thanos Kotsiopoulos, and Sue Harrison "A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems." <i>Advanced Materials Research</i> (2015) http://hdl.handle.net/11427/25138 | en_ZA |
| dc.identifier.citation | Govender E., Kotsiopoulos A and Harrison S.T.L. (2015). A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems. Advanced Materials Research, Biotechnologies in Mining Industry and Environmental Engineering, Volume 1130, 316-320 | en_ZA |
| dc.identifier.issn | 1662-8985 | en_ZA |
| dc.identifier.ris | TY - Journal Article AU - Govender, Elaine AU - Kotsiopoulos, Thanos AU - Harrison, Sue AB - Multiple mini-column reactors, loaded with identically constructed ore samples representing grab samples of a larger heap, were used to study the behaviour of solution tracers to elucidate solution diffusion, dispersion and transport. The tracers were either introduced to the ore bed as a pulse, included during agglomeration of the ore or introduced to the system by submerging the ore bed. These methods of tracer introduction allowed for the characterisation of flow interchange in unsteady state systems. The resulting concentration-time distribution curves were analysed to allow characterisation of flow dispersion and diffusion, which facilitates exchange between the fast flowing and largely stagnant liquid phases. Preliminary results support the presence of distinct stagnant and flowing regions within the agglomerated ore bed. Agglomeration with the tracer promotes increased retention on the ore; potentially enhancing microbial transport via increased solution exchange after the initial period of attachment. DA - 2015-11 DB - OpenUCT DP - University of Cape Town J1 - Advanced Materials Research LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 SM - 1662-8985 T1 - A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems TI - A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems UR - http://hdl.handle.net/11427/25138 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/25138 | |
| dc.identifier.vancouvercitation | Govender E, Kotsiopoulos T, Harrison S. A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems. Advanced Materials Research. 2015; http://hdl.handle.net/11427/25138. | en_ZA |
| dc.language | eng | en_ZA |
| dc.publisher | Trans Tech Publications | en_ZA |
| dc.publisher.department | Department of Civil Engineering | en_ZA |
| dc.publisher.faculty | Faculty of Engineering and the Built Environment | |
| dc.publisher.institution | University of Cape Town | |
| dc.source | Advanced Materials Research | en_ZA |
| dc.source.uri | https://www.scientific.net/AMR | |
| dc.title | A study of permeability and diffusion at the agglomerate-scale in heap (bio)leaching systems | en_ZA |
| dc.type | Journal Article | en_ZA |
| uct.subject.keywords | Heap bioleaching | en_ZA |
| uct.subject.keywords | solution transport | en_ZA |
| uct.subject.keywords | microbial colonisation | en_ZA |
| uct.subject.keywords | microbial attachment | en_ZA |
| uct.type.filetype | Image | |
| uct.type.filetype | Interactive Resource | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Article | en_ZA |