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Virotec Intl Ld (VTI)

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Tuesday 07 February, 2006

Virotec Intl Ld

Update on WRc trial

Virotec International Ld
07 February 2006

                            VIROTEC INTERNATIONAL LTD

7 February 2006

                 Update on WRc trial of ViroSewage(TM) Technology

The directors of Virotec International Ltd (AIM: VTI) are pleased to provide
further information to the market on the trial conducted by the Water Research
Council ('WRc') as previously advised to the market, most recently on 4 October

A 6-month demonstration trial, undertaken by the WRc, has provided an
independent review and evaluation of the ViroSewage(TM) Technology for phosphate
removal. The final report prepared by WRc has now been received by Virotec.

The WRc trial confirmed the performance and the longevity of the ViroSewage(TM)
Technology on a larger scale and reviewed options for system design and
configuration on future installations for the UK Water Companies. A filter bed
incorporating ViroSewage(TM) reagents can now be integrated at the back end of a
waste water treatment plant, providing passive flow-through treatment for
phosphate removal and final effluent polishing.

Virotec's Executive Chairman Mr Brian Sheeran explains, 'This application offers
the water industry an economic and sustainable alternative to chemical

WRc Trial Summary

Two beds containing ViroSewage(TM) pellet media were operated with a horizontal
flow reed bed type configuration at residence times varying between 4 and 12
hours.  The work demonstrated that up to 85% phosphate removal could be achieved
meeting with consents of less than 2mg/l.  On trial completion, after six months
of continuous operation, the phosphate removal capacity of the ViroSewage(TM) 
media had exceeded 7gP/kg ViroSewage(TM) pellets but the pellets were not close 
to exhaustion.  In addition, some earlier bench scale trials have now been
operating for over 18 months.  More than 1,500 bed volumes have been processed
and the phosphate removal capacity of these pellets has exceeded 15gP/kg
ViroSewage(TM) pellets.  This work is still ongoing and again has yet to
demonstrate signs that the ViroSewage(TM) media may be close to exhaustion.

The full report prepared by WRc will be available on Virotec's website at

For further information please contact Angus Craig, Company Secretary on +617
5530 8014 or by email at

                           VIROTEC INTERNATIONAL LTD
                               ABN 81 004 801 398
                                   PO Box 188
                            Sanctuary Cove QLD 4212

                      This information is provided by RNS
            The company news service from the London Stock Exchange