In recent months, Zenon has booked three municipal orders valued at over $35 million, with a combined treatment capacity of 160 mgd. Project sites include Thornton, CO; Scottsdale, AZ; and Mississauga (Peel Region), Ontario.
The City of Thornton needed to expand and upgrade the existing drinking water plant to service its community of more than 100,000 people. In addition to looking for a reliable, proven technology, the municipality had to consider how easily any new technology could be retrofitted into the existing plant.
The new system is expected to be complete by the spring of 2005 and will treat 50 mgd.
The City of Scottsdale is currently paying the City of Phoenix to treat a portion of its drinking water, sourced from the Salt River Project. This is challenging surface water because it also contains levels of arsenic that can reach as high as 20 µg/l, double that of the recently revised US EPA limit of 10 µg/l. In addition to this, the City has limited space for building a new water treatment plant.
Its new Chaparral Water Treatment Plant will be built on a 10-acre site. Once completed in the spring of 2005, it will be treating 30 mgd.
In an effort to upgrade and expand a drinking water facility in the City of Mississauga, Ontario, Regional Council for Peel Region recently approved the purchase of Zenon's membrane technology for the Lakeview Water Treatment Plant. The expansion will add 80 mgd, summer capacity, of drinking water to the existing 148 mgd currently being produced.
This expansion will constitute the largest ultrafiltration membrane installation for drinking water treatment in the world.
The expansion will incorporate ozone and biologically activated carbon (BAC) to pre-treat source water from Lake Ontario, prior to membrane filtration. The plant expansion is scheduled for completion in 2006.
