Search Results - "Simate, G."

Mining and metallurgical wastes: a review of recycling and re-use practices by Matinde, E.

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Recovering phosphorus as struvite from anaerobic digestate of pig manure with ferrochrome slag as a magnesium source by Moyo, L.B., Simate, G.S., Mamvura, T.A., Danha, G.

“…The circular economy initiative has driven the agriculture and agro-based industry to beneficiate from waste,thus closing the material loop towards enhancing…”
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Biological acidification of pig manure using banana peel waste to improve the dissolution of particulate phosphorus: A critical step for maximum phosphorus recovery as struvite by Moyo, L.B., Simate, G.S., Mutsatsa, T.

“…Traditional disposal of agricultural bio-waste such as pig manure and banana peel waste poses an environmental nuisance. The uncontrolled disintegration of…”
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Magnesium recovery from ferrochrome slag: kinetics and possible use in a circular economy by Moyo, L.B., Simate, G.S., Mamvura, T.A.

“…The ever-increasing demand for ferrochrome alloys has resulted in a substantial accumulation of ferrochrome slag by-products in many mining areas. On the other…”
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Case study modelling for an ettringite treatment process by Germishuizen, C., Franzsen, S., Sheridan, C.M., Grobler, H., Simate, G.S.

“…Several technologies have been developed to treat acid mine drainage (AMD) and attention is shifting towards the removal of sulphate. The formation of…”
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Optimized Bioleaching Pre-treatment of UG-2 PGM Flotation Concentrate Using Design of Experiments by Shemi, A., Chipise, L., Yah, C. S., Kumar, A., Moodley, S., Rumbold, K., Simate, G., Ndlovu, S.

“…The depletion of the Merensky ore has led the South African platinum industry into largely mining and processing Upper Group Two (UG-2) ore for the extraction…”
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Optimization of pulp production from groundnut shells using chemical pulping at low temperatures by Musekiwa, P., Moyo, L.B., Mamvura, T.A., Danha, G., Simate, G.S., Hlabangana, N.

“…Paper production through chemical pulping has been identified as one of the ideal avenues of exploring the uses of groundnut shells as they are rich in…”
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Oxidative leaching of refractory sulphidic gold tailings with an ionic liquid by Teimouri, S., Potgieter, J.H., Simate, G.S., van Dyk, L., Dworzanowski, M.

“…•Gold was successfully leached from flotation concentrated tailings.•Acidic ionic liquid [Bmim+HSO4−]/thiourea/ferric ion was used as a leaching system.•Gold…”
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Characterising the ductility and fatigue crack resistance potential of asphalt mixes based on the laboratory direct tensile strength test by L F Walubita, G S Simate, J H Oh

“…As a means to investigate the applicability of the direct tensile strength (DT) test as a surrogate fatigue crack test, the ductility and fatigue crack…”
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Towards bioleaching of PGMS by Chipise, L., Ndlovu, S., Shemi, A., Moodley, S.S., Kumar, A., Simate, G.S., Yah, C.S.

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Characterization, kinetics and thermodynamic evaluation of struvite produced using ferrochrome slag as a magnesium source by Moyo, L.B, Simate, G.S., Hobane, N, Dube, C

“…•N:P ratio is a critical parameter towards improving the crystal growth kinetics of struvite.•Thermal degradation of struvite is imperative to understand the…”
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Bacterial leaching of nickel laterites using chemolithotrophic microorganisms: Process optimisation using response surface methodology and central composite rotatable design by Simate, Geoffrey S., Ndlovu, Sehliselo, Gericke, Mariekie

“…The depletion of easily processed nickel sulphides and demand for the nickel metal pose a challenge of finding new effective methods for nickel recovery from…”
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Bacterial leaching of nickel laterites using chemolithotrophic microorganisms: Identifying influential factors using statistical design of experiments by Simate, Geoffrey S., Ndlovu, Sehliselo

“…Knowing the significance that a factor has in influencing a measured response is paramount for optimisation and cost control. The significant factors can be…”
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Application of response surface methodology for optimization of biodiesel production parameters from waste cooking oil using a membrane reactor by Moyo, L.B., Iyuke, S.E., Muvhiiwa, R.F., Simate, G.S., Hlabangana, N.

“…•We do trans-esterification of waste cooking oil to produce biodiesel.•We vary temperature circulation flow rate and catalyst concentration to investigate…”
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