VTI ANOUNCEMENT

VIROTEC INTERNATIONAL LIMITED 2002-09-23 ASX-SIGNAL-G

HOMEX - Brisbane

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Virotec International Ltd (ASX/AIM: VTI) is pleased to announce an
entirely new process ViroSewage(TM) technology, which the company
believes, will be of substantial value to the global wastewater
treatment industry.

ViroSewage(TM) technology is a further development of the company's
platform Bauxsol(TM) Technology. It is easily integrated into
existing sewage treatment facilities and involves the implementation
of a relatively simple engineering retro-fit and the application of
ViroSewage(TM) reagents (patent applications lodged).

ViroSewage(TM) technology was developed and tested in Australia, with
the assistance of two Queensland municipal councils, one a
conventional Trickle Filter Facility, and the other, a Biological
Nutrient Removal Facility. At both facilities, ViroSewage(TM)
technology delivered outstanding results

Executive Chairman, Brian Sheeran states: "Increasing urbanisation
and industrialisation have resulted in a dramatic increase in the
volume of wastewater produced around the world. It has also created
significant challenges. Sludge disposal is a worldwide problem. Odour
pollution is a worldwide problem. The capacities of sewage treatment
plants are constantly being stretched.

Eighteen months ago, Virotec set out to see if the company could make
cleaner waste water and cleaner biosolids (treated sludge). We
exceeded all our expectations. ViroSewage(TM) technology compliments
and optimises all the material flows and processes associated with
sewage treatment, including final disposal.

Today we bring to the market a process that delivers:

1. Substantial odour reduction minimising local impacts from sewage
treatment facilities.

2. Reduced residence time in the final clarifier potentially allowing
existing plants to significantly increase capacity without
substantial increase in capital expenditure.

3. Economically achievable removal of up to 99.9% of phosphorus.

4. Superior biosolids that are free from objectionable odour,
phosphate enriched and environmentally safe due to unmatched heavy
metal immobilisation.

5. Treated biosolids that "cook" during composting at up to 15
degrees centigrade higher than normal untreated biosolids, while
reducing the possibility of spontaneous combustion, providing
significant environmental and economic incentives to compost
biosolids that include;

- 100% elimination of pathogens
- Up to 65% reduction in time required for composting.
- Up to 40% reduction in the quantity of green mulch required for
composting.

Mr Sheeran concludes "Virotec has produced a technology able to
deliver odourless effluent that easily meets the most stringent
discharge limits for phosphorus and suspended solids as well as
substantially enriched, stabilized odour free biocake ideal for
recycling as a marketable product. The Directors believe
ViroSewage(TM) technology will bring substantial rewards to
shareholders and we are actively pursuing worldwide markets."

For further information regarding the ViroSewage(TM) technology
please refer to the attached additional explanatory information or
refer to www.virotec.com.

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