Chemical Technology September 2015

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REGULAR FEATURES 3 Comment by David Rothery, Professor of Planetary Geosciences at The Open University, UK 21 SAIChE IChemE news 36 Et cetera/ Sudoku 109/Solution to Sudoku 108 COVER STORY 4 From butterfly to chocolate – the GEMÜ valve experience The Victoria range of metal butterfly valves, especially the white NBR liner, is used extensively in oily, greasy and fatty applications such as the manufacture of chocolate. SEPARATION & FILTRATION 6 Design guidelines for the chemical treatment of distillation columns – Part 1 Proper chemical treatment in distillation systems involves understanding distillation principles such as the chemistry of the process. Successful application must also include reviews of fouling, corrosion and economic and environmental constraints. by Karl Kolmetz, KLM Technology Group, Johor Bahru, Malaysia Contents

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CONTROL & INSTRUMENTATION 22 Wind window: An effective user interface for wind farm operations

Wind farm operators have to handle a relatively large amount of data compared to other, similar installations. By interviewing and observing users in their real working environments, valuable insights can be gained into the key HMI design considerations Situation awareness is further improved by the alarm management system, helping guide the operator’s attention toward important events in the field. by Maria Ralph and Susanne Timsjö, ABB Corporate Research, Västerås, Sweden, Adrian Timbus, ABB Power Systems, Zurich, Switzerland, and Stefano Doga, ABB Power Systems, Genoa, Italy

Transparency You Can See Average circulation (April– June 2015) 3 672

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SUPPLY CHAIN MANAGEMENT 30 LEAN SCM: A paradigm shift in supply chain management

Chemical Technology is endorsed by The South African Institution of Chemical Engineers

LEAN SCM – a planning concept for harmonised production and replenishment planning across the entire supply chain with close linkages to organisational processes and IT infrastructure, was designed expressly to simplify existing planning processes and to improve the synchronisation and variability management of global supply chains. by Josef Packowski and David Francas, Camelot Management Consultants AG, Mannheim, Germany

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WATER TREATMENT 12 Reuse of augmented wineries wastewater for vineyard irrigation

Wine production is an important industry in the Western Cape and the Lower Orange region in the Northern Cape region of South Africa. Wineries produce large volumes of low quality wastewater, particularly during the harvest period. 17 Water treatment profile: Veolia Water Technologies South Africa – Resourcing the world Dr Gunter Rencken, Managing Director, and Chris Braybrooke, General Manager - Business Development at Veolia Water Technologies South Africa, recently met with the editor of ‘Chemical Technology’ to talk about the company’s plans for the future and to outline its latest activities in the water technologies sector.

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and the Southern African Association of Energy Efficiency

DISCLAIMER The views expressed in this journal are not neces- sarily those of the editor or the publisher. Generic images courtesy of www.shutterstock.com

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Chemical Technology • September 2015

http://www.chemicaltechnologymagazine.co.za/