3 / 40
22
REGULAR FEATURES
3
Comment
by John Butler-Adam, Editor-in-Chief, the ‘South African Journal
of Science’
36
Et cetera/ Sudoku 107/Solution to Sudoku 106
COVER STORY
4
Real measurement benefits from VEGA’s ceramic pressure
transmitters
VEGA’s dry, oil-free ceramic cell technology CERTEC
®
is a real
alternative for a wide range of measurements, offering major
benefits to users.
NANOTECHNOLOGY
6
In pursuit of the perfect blood
Mad Max is captured and forced into slavery as a ‘blood bag’ in
“Fury Road”, the latest episode in the ongoing post-apocalypse
saga. He is there to provide an endless source of fresh blood
transfusions to ensure the health of the War Boys as they main-
tain the authority of the villainous Imortan Joe.
by Gavin Chait
9
Focus on nanotechnology
PLANT MAINTENANCE, SAFETY,
HEALTH & QUALITY
10
Layers of protection and safety integrity
In industry there are hazards which can lead to loss of life and
property. To avoid these consequences, it is essential to prevent
them from happening in the first place or, as a last resort,
mitigate their effects by means of protection. If prevention is
included in the term protection, then one may visualise an
installation with various layers of protection around it.
by Daniel J E Rademeyer, ISHECON, Johannesburg, South Africa
17
Focus on plant maintenance, safety, health & quality
WATER TREATMENT
22
Organic compounds in produced waters from
shale gas wells
The quality of shale gas produced waters, as well as frac flowback
waters, is a current environmental concern and disposal problem
for producers. Re-use of produced water for hydraulic fracturing
is being encouraged; however, knowledge of the organic
impurities is important in determining the method of treatment.
by Samuel J Maguire-Boyle, Department of Chemistry,
Rice University, Houston, Texas and Andrew R Barron, Department
of Chemistry, Department of Materials Science and
Nanoengineering, Rice University, Houston and Energy Safety
Research Institute, College of Engineering, Swansea University,
Wales, UK
28
Focus on water treatment
CONTROL & INSTRUMENTATION
32
Making biogas measurements manageable
Measuring biogas flow has long been a problem area in process
measuring technology. Parameters such as high water and CO
2
content make for a demanding medium and a difficult measuring
task. A new generation of ultrasonic flowmeters makes biogas
measurements stable and manageable.
35
Focus on control & instrumentation
Contents
Chemical Technology is
endorsed by The South
African
Institution of Chemical
Engineers
Transparency You Can See
Average circulation
(Jan – March 2015)
3 700
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 10 4 32 6http://www.chemicaltechnologymagazine.co.za/