1
Regular features
2
Cover story
3
Comment
by Lyn Bates
19
SAIChE News
34
Forum
35
In the spotlight
36
Sudoku No 85 and solution to No 84 / Et cetera
Special report
4 Containing and recovering hazardous water
- by Gavin Chait
Mining and minerals processing
6 Frothing at the lip: stability in your flotation cell
–by Jason Heath, Technology Leader - Flotation, Outotec,
South East Asia region
9
Focus on mining and minerals processing
Separation and filtration technologies
12 Flexible configuration: Membraflow ceramic mem-
brane elements
- by Wolf-Dietrich Herberg, GEA Westfalia
Separator Group, Oelde, Germany
14
Focus on separation and filtration technologies
Water treatment
20 Development of a gradient tube method for examin-
ing microbial population structures in floating sulphur
biofilms
- by ML Bowker, Environmental Biotechnology Re-
search Institute, Rhodes University, JB Molwantwa, Digby Wells
Associates, J Gilfillan and R Dorrington Department of Bio-
chemistry, Microbiology and Biotechnology, Rhodes University,
R Kirby, Department of Life Sciences and Institute of Genome
Science, National Yang-Ming University, Taiwan and PD Rose,
Department of Biochemistry, Microbiology and Biotechnology,
Rhodes University
26
Focus on water treatment
Materials of construction
28 Corrosion of WC-VC-Co hardmetal in neutral chloride
containing media
- by C N Machio, Council for Scientific and
Industrial Research, Pretoria, D S Konadu, DST/NRF Centre of
Excellence in Strong Materials, and School of Chemical and
Metallurgical Engineering, University of Witwatersrand, and
Materials Science and Engineering Department, University
of Ghana, Legon, J H Potgieter, School of Research,
Enterprise and Innovation, Manchester Metropolitan
University, UK, S. Potgieter-Vermaak, School of Science
and the Environment, Manchester Metropolitan University,
UK, and School of Chemistry, University of the Witwatersrand,
and J Van der Merwe, DST/NRF Centre of Excellence in
Strong Materials, and School of Chemical and Metallurgical
Engineering, University of Witwatersrand
Contents
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SEPTEMBER 2013
Transparency You Can See
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