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The
design of the air treatment systems began in February 2008 and the
first installation commenced in June of that year. The new works began
supplying water to the area in February 2009 and after demolition of
the existing works there will be an opening ceremony in the autumn.
The first hurdle to overcome was the design of a solution that could
effectively supply air to the underground pipework galleries. Not only
was this a maze of different areas, but the large process pipework
would need to take priority during coordination of services. This meant
that available space for the ventilation system was limited and that
installation may have proved problematic with conventional ventilation
techniques. However ATS provided a tailored solution in the form of our
proprietary JETFLO ventilation system. JETFLO uses higher velocity
distribution resulting in small ductwork diameters. Air is discharged
into the space by high velocity nozzles. As the air leaves the JETFLO
nozzle it entrains the surrounding air into the nozzle air stream,
thereby thoroughly mixing all the air in the space. Any local noxious
gases are therefore diluted quickly and clean fresh air is distributed
throughout the area constantly. The installation of ductwork within
this area began after all other major services were complete so that
there would be no damage to our ductwork. The JETFLO system was served
by run and standby fans positioned outside of the area in a dedicated
plantroom. The ductwork was manufactured in galvanised metal as risk of
corrosion in this area was minimal.
UPVC ductwork was used in the chlorine drum store and chlorinator room.
The design was based on providing two air changes per hour ventilation
during normal operation, increasing to ten air changes upon a low level
chlorine leak detection. The ventilation systems automatically stop if
higher leakage is detected and shut off dampers close to isolate the
room. Plastic centrifugal run and standby fans were used in the drum
store and an in-line plastic fan for the smaller chlorinator room.
MCC room ventilation was designed to ensure that rooms do not overheat
in summer and that available heat is recovered and recycled in the main
treatment building. In this way energy was recovered and used again.
Energy was also a consideration in the dirty washwater building, where
natural ventilation was the chosen option thereby consuming no energy.
All systems used high efficiency motors and the controls were designed
to ensure optimised energy use, energy conservation being a major
priority through the design of the whole project.
Commissioning was completed in January 2009 and handover to the client
was made prior to the commencement of operations in February 2009.
Air Technology Systems designs and installs a complete range of
ventilation and odour control systems for the water and wastewater
industry. We have been working within the industry for nearly twenty
years and have built up a vast experience throughout many water and
sewage arenas. Odour control systems available include biofilters and
scrubbers, dry carbon filters and chemical scrubbers.
We will again this year be supporting the Wessex Water initiative
‘business 4 life’ in aid of Wateraid by supporting and sponsoring an
evening of entertainment aboard the world’s first great Ocean Liner -
Brunel's S.S. Great Britain on Friday 18th September. Last year’s event
was a great success raising many thousands of pounds and we are sure
the 2009 event will be just as beneficial. To help sponsor the charity
please contact any of the following.
www.b4l.org.uk www.wateraid.org www.wessexwater.co.uk
For further information contact Steve Boon at ATS on
Tel: 01527 833383 Fax: 01527 833385
Email: steve.boon@atsclimate.com |
