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Sulphate removal from acid rock drainage using steel slag

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dc.contributor.author Ntuli, Freeman
dc.contributor.author Magwa, Nomampondo
dc.date.accessioned 2021-02-02T10:03:53Z
dc.date.available 2021-02-02T10:03:53Z
dc.date.issued 2018-07
dc.identifier.citation Ntuli, F. and Magwa, N. (2018) Sulphate removal from acid rock drainage using steel slag. IOP Conference Series: Earth and Environmental Science, 191, 012116, https://doi.org/10.1088/1755-1315/191/1/012116. en_US
dc.identifier.issn 1755-1315
dc.identifier.issn 1755-1307
dc.identifier.uri http://repository.biust.ac.bw/handle/123456789/253
dc.description.abstract The removal of sulphates from acid rock drainage (ARD) using basic oxygen furnace (BOF) slag was investigated. The results indicated that sulphates removal using BOF- slag increased with temperature increase (25-45oC), time (0-24 h) and solid loading (2-12 g BOF-slag/50 ml ARD). The maximum sulphate removal was 65% when 12 g BOF-slag/100 ml ARD was used at 45oC and 24 h residence time. Adsorption followed the Langmuir isotherm with maximum adsorption capacities at 25, 35 and 45oC of 1.949, 1.967, 4.078 mg/g respectively and RL values less than 0.3, indicating adsorption was thermodynamically favourable. The adsorption kinetics followed the pseudo second order kinetics. en_US
dc.language.iso en en_US
dc.publisher IOP Publishing Ltd en_US
dc.subject Materials slag en_US
dc.subject Sulphates en_US
dc.subject Basic oxygen furnace (BOF) slag en_US
dc.subject Acid rock drainage (ARD) en_US
dc.title Sulphate removal from acid rock drainage using steel slag en_US
dc.description.level phd en_US
dc.description.accessibility unrestricted en_US
dc.description.department cme en_US


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