dc.creator | Montes Rosua, Cristina | es |
dc.creator | Iglesias González, María Nieves | es |
dc.creator | Romero Aleta, Rafael | es |
dc.creator | Mazuelos Rojas, Alfonso | es |
dc.creator | Carranza Mora, Francisco | es |
dc.date.accessioned | 2023-12-26T11:21:48Z | |
dc.date.available | 2023-12-26T11:21:48Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Montes Rosua, C., Iglesias González, M.N., Romero Aleta, R., Mazuelos Rojas, A. y Carranza Mora, F. (2016). Monitoring polythionate bio-oxidation by conductivity measurement. Minerals Engineering, 95, 40-47. https://doi.org/10.1016/j.mineng.2016.06.008. | |
dc.identifier.issn | 0892-6875 | es |
dc.identifier.uri | https://hdl.handle.net/11441/152796 | |
dc.description.abstract | Polythionates are formed by the incomplete oxidation of sulphide minerals in the grinding and flotation
circuits, and particularly of those containing pyrite. Polythionate levels in the recycling water must be
adjusted; otherwise, it can affect metal recoveries. The presence of different species, such as thiosulphate,
trithionate, and tetrathionate in certain effluents can affect the environment. In this paper, an indirect
method based on conductivity measurement for monitoring polythionate bio-oxidation is proposed.
Firstly, the conductivity of acidic solutions containing polythionates is verified as the sum of the
conductivities corresponding to acid and tetrathionate and, therefore, in synthetic solutions, polythionate
concentrations can be estimated by simply measuring conductivity. In process water and cultures with
background conductivity, polythionate concentrations are predicted from the linear relationship between
polythionate concentration and the total conductivity of the system. Once the slope of the linear
relationship is known, polythionate concentrations can be estimated, and therefore it is necessary to
perform only chemical analysis at the beginning and at an intermediate point. The degradation of
polythionates can be continuously recorded, and hence the kinetic study of a culture can be more easily
and accurately performed. | es |
dc.format | application/pdf | es |
dc.format.extent | 8 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Minerals Engineering, 95, 40-47. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Polythionates | es |
dc.subject | Bio-oxidation | es |
dc.subject | Analysis | es |
dc.subject | Monitoring cultures | es |
dc.subject | Bioreactor control | es |
dc.title | Monitoring polythionate bio-oxidation by conductivity measurement | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería Química | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Lenguajes y Sistemas Informáticos | es |
dc.relation.publisherversion | https://doi.org/10.1016/j.mineng.2016.06.008 | es |
dc.identifier.doi | 10.1016/j.mineng.2016.06.008 | es |
dc.journaltitle | Minerals Engineering | es |
dc.publication.volumen | 95 | es |
dc.publication.initialPage | 40 | es |
dc.publication.endPage | 47 | es |