PROCESS CONTROL
other food products, undergoes both ultra
and nano-filtration and reverse osmosis
to ensure that all the nutrients are
extracted.
PH measurement is of prime
importance to the process to avoid
damaging the filter units as the process
requires precise control of the pH. Hygiene
is also of prime importance, so the sensor
is finished in enamelled stainless steel
which makes it easy to clean.
Pharmaceutical batch processing
efficiency has also improved at Gilead
Alberta, a biopharmaceutical company
producing what it describes as ‘innova-
tive therapeutics to advance the care
of patients suffering from life-threatening
diseases,’ by introducing new pH measur-
ing equipment.
The company has worked with
Invensys Foxboro’s Measurements and
Instruments division to produce the
Foxboro 871PH sensor, which is
claimed to be capable of completing a
pH adjustment in three hours — a
process that traditionally takes up to
a day.
Gilead Alberta’s senior technical
supervisor Robert Pastushak
underlined the value to the company.
‘The improved pH readings by one
sensor can be worth hundreds of
thousands of dollars a year,’ he said.
46 the EnGIneeR 21 APRIL–4 MAY 2008
The need to keep ahead of the
competition has led to huge amounts of
cash being invested in both the food
and beverage and pharmaceuticals
sectors to keep our consumables as
cheap as possible.
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