UV Acceptance

by Karl G. Linden, (A.M.ASCE), Asst. Prof.; Envir. Group, Dept. of Civ. Engrg., Univ. of North Carolina, Charlotte, NC,

Serial Information: Civil Engineering—ASCE, 1998, Vol. 68, Issue 3, Pg. 58-61

Document Type: Feature article


Ultraviolet disinfection of wastewater is increasingly being used. The method has been available since the early part of the century, but chlorine was widely available and generally cheaper. In the past twenty years, however, concern about chlorinated hydrocarbons has refocused research into ultraviolet disinfection. The research has also lowered the price, and the method is now considered a viable alternative to chlorine disinfection for wastewater. In the last decade, its use has increased significantly, although acceptance for drinking water lags. The treatment method is detailed, low pressure and medium pressure ultraviolet systems are described, and appropriate applications for each offered. The relative advantages of ultraviolet and chlorine disinfection are listed, and two case histories of utilities that have switched from chlorine to ultraviolet are included, with the reasoning for the decision.

Subject Headings: Chlorine | Disinfection | Wastewater management | Case studies | Utilities | Ultraviolet radiation | Pricing

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