1. Presented by Trevor Higgins DBO Contract: Veolia Water

2. Introduction Limerick City's water treatment plant at Clareville is located on the banks of the Shannon near Castleconnell.

3. Background First phase of the treatment complex was completed in the 1890's and utilized the Shannon as a source of both raw water and power

4. Second Phase The second phase came at the end of the 1920's when the pumping arrangement had to give way because of a more spectacular development on the other side of the river.

5. Latest Phase In 1951, a further extension was completed increasing the capacity to 3.6 Million gallons/day (16,000m3/day) to cater for the growing demands of the city

6. Public Private Partnership The DBO option was preferred for Clareville Water Treatment Plant and a contractor has been in operation on the site since 2007. The upgrading of the Plant was officially opened on 25th June 2010. For Further information please read the attached brochure

7. Meeting The Needs through Innovation Clarifiers Actiflo Schematic Design and installation of Actiflo®, a high rate ballasted floc clarifier developed by Veolia Water, followed by highrate dual media filters. This provided a reliable process with a small footprint, less capital and operational costs which is well suited to treat rapid changes in raw water characteristics. https://www.youtube.com/watch?v=Jihn7DT3mxg

8. Meeting The Needs through Innovation Dusenflo Rapid Gravity Filter Measuring Success

9. Alum Sludge Drying Plant Design and installation of a sludge drier to dramatically reduce the volumes of aluminium sludge leaving the plant, and providing a product that can be reused in the industry.