Browsing by Author "Jones, Gavin C"

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The generation of toxic reactive oxygen species (ROS) from mechanically activated sulphide concentrates and its effect on thermophilic bioleaching.

Author: Jones, Gavin C ; Corin, Kirsten C ; van Hille, Robert P ; Harrison, Susan T L Date: 2011 Two types of laboratory mills, planetary and vibratory, were used to activate sulphide mineral concentrates mechanically before thermophilic (bio)leaching. These samples were analysed in terms of particle size, surface area, density, SEM, XRD ... Read more
A novel microwell-based analytical technique for studying ferrous iron biooxidation activity

Author: Meissner, Murray P ; Xu, Zhehua ; Jones, Gavin C ; Minnaar, Susanna H ; Harrison, Susan T L Date: 2014 The broad range of complexities in bioleaching includes the use of mixed microbial communities with diversity of species and strains with different windows of operating conditions. Empirical approaches to characterise these currently use ... Read more
The effect of sulfide concentrate mineralogy and texture on Reactive Oxygen Species (ROS) generation

Author: Jones, Gavin C ; Becker, Megan ; van Hille, Robert P ; Harrison, Susan T L Date: ROS The generation of Reactive Oxygen Species (ROS), H2O2 and radical dotOH, has been observed from sulfide mineral containing particles in acidic solutions. The implications of this phenomenon, as a potential microbial stress-causing effect, ... Read more

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