Processing Magazine

World’s largest UV drinking-water disinfection plant set to go online

September 4, 2012

NEW YORK — In two months, the world’s largest ultraviolet drinking-water disinfection plant will begin supplying New York City with clean water, according to Scientific American.

The $1.6 billion facility, which features 56 UV units provided by Trojan Technologies Inc., will be capable of processing 2.2 billion gallons per day when it goes online on Oct. 29.

The Delaware-Catskill watersheds, the city’s major water sources, have historically not required filtration or multiple methods of disinfection. However, the U.S. Environmental Protection Agency released a new rule in 2006 that requires surface water treatment facilities to either filter their water or install an additional barrier for microorganisms as a multi-barrier disinfection strategy.

After evaluating available technologies, engineers working on the Catskill/Delaware project decided that UV was the most practical and cost-effective solution.