PROJECT 3.4: ENGINEERING, DESIGN AND APPLICATION
(Dr T Hardy, JCU)
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| Darren Oemcke is investigating how to remove or
kill organisms hitch-hiking into coastal waters adjacent to The Great
Barrier Reef. |
The studies in this project are carried out by prestigious postgraduate
award students engaged by the Centre.
Treatment of ballast water discharges to ports in the Great Barrier
Reef region
In the last twelve months considerable progress has been made in the
ballast water project with the completion of a ballast water composition
study and the commencement of research into ozonation and UV treatment
of ballast waters. The ballast water composition study found that ballast
water differed from seawater in some significant ways.
Tests on ozonation of seawater have examined the effects of dose, application
rate, salinity and pH on ozonation efficiency for Bacillus subtilis
and established an extensive set of baseline data for comparing algal
and bacterial disinfection efficacy testing for both in-transit and port-based
ballast water treatment.
Hydrodynamics of a Coral Reef Flat
The main objectives of this recently commenced study are to improve
the understanding of the wave-induced water levels and currents on a reef
flat. A site at Agincourt Reef will be instrumented to determine changes
in water levels and currents as waves break on the reef edge and propagate
across the reef flat. The data will be used to develop models that will
predict these effects.
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