MechChem Africa May-June 2023

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CONTENTS 30 Maintenance solutions and asset management 6 Integrated solutions from Circular Economy Centre The SKF Circular Economy Centre is securing new customers based on its ability to offer solutions that optimise operations, save costs and deliver environmental benefits. 7 Online condition monitoring improves diamond plant efficiency 8 thyssenkrupp Uhde extends life of ammonia tank 9 Reliability Partners champions predictive maintenance 10 How to find reliable lubrication solutions 11 WearCheck saves customers time and money Water, wastewater and pumping solutions 12 Leveraging better wastewater treatment Verder SA urges wastewater treatment plant designers to carefully consider modern options to determine the long-term viability of their solutions. 14 Biological trickle filtration systems supplied to Ghana 15 Dewatering plan saves the day at iron ore mine 16 Technology to achieve ‘Water for All’ 17 Use data to optimise municipal water management Minerals processing and materials handling 18 Degritting spiral reduces carbon costs for mining operations in West Africa The use of a modified Multotec SX4 spiral is achieving up to 95% removal of contaminants from the activated carbon used in gold processing. 19 FLSmidth’s comminution line-up leads the pack 21 Sandvik introduces industry-first carbide recycling 22 Weba chutes prove their worth at US power plants 23 Fast, optimal solutions underpin Africa growth Heating ventilation and air conditioning 24 Excess heat: a greener and safer route out of the energy crisis According to a Danfoss ImpactWhite Paper – Issue 2 – excess heat is the world’s largest untapped energy source. MechChem Africa extracts the highlights. PowerGen, PetroChem and sustainable energy management 26 The growing need for 10 MW-plus power plants South Africa-based Zest WEG is serving the need for larger power plants with a range of in-house solutions. 28 Energy optimisation and best practices keep industry turning 30 Why green hydrogen for SA? 33 Solar tax breaks offer a little, but not enough Local manufacturing and food processing 34 SA Foundry Industry goes to Düsseldorf MechChem Africa talks to NFTN Director Ndivhuho Raphulu about the National Foundry Technology Network’s decision to exhibit SA’s metal casting capabilities and investment opportunities at GMTN 2023 in Düsseldorf this June. 36 Gear business driven by sustainability Corrosion control and coatings 38 Why is stainless steel not the first choice for SA projects Sassda executive director, Michel Basson, questions why key local sectors in South Africa are not using more locally produced stainless steel. 39 Zinc supports clean energy technologies from solar to wind Hydraulic, pneumatic Automation systems 40 Green and efficient compressed air solutions Atlas Copco Compressor Technique highlights how the company’s Industrial Air team is meeting the growing appetite for green, solutions. 41 Omron’s EtherCAT capabilities and solutions Innovative engineering 46 Water reuse and long-term supply solutions MechChem Africa talks to Thys Els of Veolia Services Southern Africa, about water reuse and the innovations that could help us to overcome water scarcity. Regulars 2 Peter’s comment: Can SA become a green hydrogen fuel exporter? 4 On the Cover: Total plant maintenance for the sugar sector: BMG outlines the critical role it is playing in the sugar sector. 42 Products and industry news 48 Back page: Energy storage testbed to boost battery industry 46

Published bimonthly by Crown Publications (Pty) Ltd Cnr Theunis and Sovereign Streets Bedford Gardens 2007 PO Box 140, Bedfordview, 2008 Tel: +27 11 622 4770 e-mail: mechchemafrica@crown.co.za www.mechchemafricamagazine.co.za Editor: Peter Middleton e-mail: peterm@crown.co.za Advertising: Elmarie Stonell e-mail: mechchemafrica@crown.co.za Design: Katlego Montsho Publisher: Karen Grant Deputy publisher: Wilhelm du Plessis Circulation: Brenda Grossmann The views expressed in this journal are not necessarily those of the publisher or the editors.

Transparency You Can See Average circulation Jan to Mar 2023: 10 217 Printed by: Tandym Print, Cape Town

Front cover: BMG KZN Regional Services Centre Contact: Keith van Wyk, Tel: +27 31 534 4827 keithvw@bmgworld.net www.bmgworld.net

May-June 2023 • MechChem Africa ¦ 1