naa a22 4500 510749585 CHVBK 20180411083059.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11270-013-1724-9 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1724-9 Laboratory Study on the Mobility of Major Species in Fly Ash-Brine Co-disposal Systems: Up-flow Percolation Test [Elektronische Daten] [O. Fatoba, L. Petrik, R. Akinyeye, W. Gitari, E. Iwuoha] Apart 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. Springer Science+Business Media Dordrecht, 2013 Fly ash nationallicence Brine nationallicence Co-disposal systems nationallicence Mobility nationallicence Major species nationallicence Up-flow percolation test nationallicence Fatoba O. Environmental and Nano Sciences Research Group, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut Petrik L. Environmental and Nano Sciences Research Group, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut Akinyeye R. Environmental and Nano Sciences Research Group, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut Gitari W. Department of Ecology and Resources Management, School of Environmental Sciences, University of Venda, Private Bag X5050, 0950, Thohoyandou, Limpopo, South Africa aut Iwuoha E. SensorLab, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut Water, Air, & Soil Pollution Springer Netherlands 224/9(2013-09-01), 1-12 0049-6979 224:9<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1724-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1724-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fatoba O. Environmental and Nano Sciences Research Group, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut NATIONALLICENCE 700 1- Petrik L. Environmental and Nano Sciences Research Group, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut NATIONALLICENCE 700 1- Akinyeye R. Environmental and Nano Sciences Research Group, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut NATIONALLICENCE 700 1- Gitari W. Department of Ecology and Resources Management, School of Environmental Sciences, University of Venda, Private Bag X5050, 0950, Thohoyandou, Limpopo, South Africa aut NATIONALLICENCE 700 1- Iwuoha E. SensorLab, Chemistry Department, University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/9(2013-09-01), 1-12 0049-6979 224:9<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer