Laboratory study on the mobility of major species in fly ash–brine co-disposal systems: up-flow percolation test

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dc.contributor.authorFatoba, Ojo O.
dc.contributor.authorPetrik, Leslie
dc.contributor.authorAkinyeye, Richard O.
dc.contributor.authorGitari, Wilson
dc.contributor.authorIwuoha, Emmanuel I.
dc.date.accessioned2018-01-09T13:41:26Z
dc.date.available2018-01-09T13:41:26Z
dc.date.issued2013
dc.description.abstractApart from the generation of fly ash, brine (hyper-saline wastewater) is also a waste material generated in South African power stations as a result of water re-use. These waste materials contain major species such as Al, Si, Na, K, Ca, Mg, Cl and SO4. The co-disposal of fly ash and brine has been practiced by some power stations in South Africa with the aim of utilizing the fly ash to capture the salts in brine. The effect of the chemical interaction of the species contained in both fly ash and brine, when co-disposed, on the mobility of species in the fly ash–brine systems is the focus of this study. The up-flow percolation test was employed to determine the mobility of some major species in the fly ash–brine systems. The results of the analysed eluates from the up-flow percolation tests revealed that some species such as Al, Ca and Na were leached from the fly ash into the brine solution while some species such as Mg, Cl and SO4 were removed to some extent from the brine solution during the interaction with fly ash. The pH of the up-flow percolation systems was observed to play a significant role on the mobility of major species from the fly ash–brine systems. The study showed that some major species such as Mg, Cl and SO4 could be removed from brine solution using fly ash when certain amount of brine percolates through the ash.en_US
dc.description.accreditationWeb of Science
dc.identifier.citationFatoba, O.O. et al. (2013). Laboratory study on the mobility of major species in fly ash-brine codisposal systems: up-flow percolation test. Water, Air & Soil Pollution, 224: 1724en_US
dc.identifier.issn0049-6979
dc.identifier.urihttp://dx.doi.org/10.1007/s11270-013-1724-9
dc.identifier.urihttp://hdl.handle.net/10566/3368
dc.language.isoenen_US
dc.privacy.showsubmitterFALSE
dc.publisherSpringer Verlagen_US
dc.rightsThis is the author-version of the article published online at: http://dx.doi.org/10.1007/s11270-013-1724-9
dc.status.ispeerreviewedTRUE
dc.subjectFly ashen_US
dc.subjectBrineen_US
dc.subjectCo-disposal systemsen_US
dc.subjectMobilityen_US
dc.subjectMajor speciesen_US
dc.subjectUp-flow percolation testen_US
dc.titleLaboratory study on the mobility of major species in fly ash–brine co-disposal systems: up-flow percolation testen_US
dc.typeArticleen_US

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