Product category:
Potable water, test and treatment
News Release from: Berson UV-techniek | Subject: BersonInLine+
Edited by the Processingtalk Editorial
Team on 04 March 2005
UV controls Giardia contamination at
waterworks
Following a recent waterborne outbreak of giardiasis in the city of Bergen in Norway, Berson UV was commissioned to provide a large-scale UV disinfection plant to the city's municipal waterworks
Following a recent waterborne outbreak of giardiasis in the city of Bergen in Norway, Berson UV was commissioned to provide a large-scale UV disinfection plant to the city's municipal waterworks The giardiasis outbreak occurred last autumn and affected over 1,000 residents of the city
This article was originally published on Processingtalk on 28 Sep 2004 at 8.00am (UK)
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It is thought to have originated with sewage contamination of the public water supply which originates from surface water.
Until now, the water treatment regime included chlorination but there were no specific mechanisms in place to prevent Giardia.
Berson supplied four large bersonInLine+ units which together will treat approximately 3,000m3/hr of communal drinking water.
The units are designed according to the German DVGW standard (at a UV dose rate of 400J/m2).
According to Ben F.
Kalisvaart, Berson UV European Sales Manager, "We were selected because our systems are highly compact, conform to the German DVGW standard and have low life cycle costs.
Although it was an emergency job, we provided quick and efficient technical support during the design process and ensured quick delivery times." Giardia lamblia, the species of Giardia infectious to humans, is a parasite found widely in sewage and surface water supplies.
Infections are transmitted by tiny egg-like cells called cysts, which are highly resistant to conventional chemical disinfectants such as chlorine.
Recent research has shown UV to be highly effective at destroying Giardia lamblia cysts, with virtually no subsequent DNA repair occurring.
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