Reclamation to use hydro-optic disinfection UV light at Lake Mead to fight biofouling

Atlantium Technologies Ltd. will supply 16 hydro-optic disinfection (HOD) ultraviolet light (UV) technology units in October to the U.S. Bureau of Reclamation to control biofouling in Lake Mead at the 2,080-MW Hoover Dam hydroelectric facility.

Atlantium Technologies, with offices in Bet Shemesh, Israel, made the announcement on Aug. 25 saying North Wind Group was awarded a contract by Reclamation to provide UV lights and associated piping at Hoover Dam. North Wind selected Atlantium Technologies to provide its Hydro-Optic UV technology for non-chemical macro- and micro-biofouling control.

The amount of the contract award is not immediately available.

In May 2016, Hydro Review published an in-depth report on research Reclamation conducted on several methods to mitigate biofouling at its facilities.

In 2015, the Reclamation Science and Technology Program research project evaluated the impacts of UV dosage amounts on veligers (larve). Treated and untreated veliger samples were collected to determine if the doses produced physical damage, behavior changes, and/or immediate or latent mortality.

According to Atlantium, the presence of the quagga mussel in Lake Mead is a primary concern because of the threat to water delivery and power reliability. In addition to Hoover Dam, the Atlantium system is installed at other facilities within Reclamation’s Lower Colorado Region.

Reclamation said following its evaluation of various chemical and non-chemical control methodologies, the Hydro-Optic UV system was selected as the preferred treatment to supplement operational and mechanical activities already in place at Hoover, Davis and Parker dams.

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Gregory B. Poindexter formerly was an associate editor for HydroWorld.com.

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