Membranes Becoming Treatment Method of Choice for
Large Scale Drinking Water Plants
ZENON books over $35 million for three municipal orders, including
largest ultrafiltration membrane drinking water installation, together
treating a total of 160 million gallons of water per day in United
States and Canada
OAKVILLE, Ontario, February 4, 2004 - Superior quality drinking water,
virtually free of harmful contaminants such as parasites, bacteria and
most viruses, is now a cost competitive alternative to other
conventional forms of water treatment. As a result, Thornton, Colorado,
Scottsdale, Arizona, and Mississauga (Peel Region), Ontario will all be
future sites of membrane plants using ZENON's (TSX: ZEN and ZEN.A; OTC:
ZNEVF and ZNEAF) proprietary technology.
The City of Thornton, Colorado 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.
Dependability was a critical issue to the decision making process, not
only in the type of technology, but also in the company supplying it,
according to Bud Hart, Water Supply, Treatment and Quality Manager for
the City of Thornton.
"It's easy to find the right product through proper piloting and
evaluation, but it's much harder to find the right company to be working
with," said Mr. Hart.
"We were impressed with the ZeeWeed membrane durability and
performance but even more so with the company," continued Mr. Hart.
"After consulting with other ZENON customers, we saw the company's
proven track record of professionalism in their customer care and
service. When you can find a company that has both product and people,
you go with them."
The new system is expected to be complete by the spring of 2005 and will
treat 50 million gallons of drinking water per day (189,000 m3/d).
According to the Director of Water Quality and Water and Waste Water
Treatment for Scottsdale, Jim Clune, "We have a lot of membrane
experience and are definitely sold on the technology. Membranes are
clearly the future of water treatment and more and more municipalities
are opting for membranes as the alternative to conventional treatment
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 ?g/l, double that of the recently
revised US EPA limit of 10 ?g/l. In addition to this, the City has
limited space for building a new water treatment plant.
"When you have all these factors to consider," said Mr. Clune,
"you need to find one solution that will address all of these
issues. It's obvious that you have to go with membranes. We selected
ZENON after a very competitive procurement process that included pilot
testing of several different membrane systems," continued Mr. Clune.
The 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 million
gallons of drinking water per day (114,000 m3/d).
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 million gallons per day
(over 300 ML), summer capacity, of drinking water to the existing 148
million gallons per day (560 ML) currently being produced.
This expansion will constitute the largest ultrafiltration membrane
installation for drinking water treatment in the world.
"When you're responsible for providing drinking water to over one
million residents, you have to ensure that the quality is the best it
can be," said Public Works Committee Chair, Maja Prentice.
The expansion will incorporate ozone and biologically activated carbon (BAC)
to pre-treat source water from Lake Ontario, prior to membrane
filtration. "It's an innovative approach that improves taste and
odour and secures public health," continued Ms. Prentice.
The plant expansion is scheduled for completion in 2006.
ZENON is a world leader in providing advanced membrane products and
services for water purification, wastewater treatment and water reuse to
municipalities and industries worldwide.
The 2003 recipient of the prestigious Stockholm Industry Water Award,
ZENON was selected because of the company's innovative approaches to the
development of water and wastewater process technologies along with its
contributions to environmental improvement.
Additional information is available at the Company's web site www.zenon.com