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Increased attention is being focused on solving taste and odor (T Linden et al, 2002; Romain et al, 2003) haveidentified UV-oxidation as an efficient means to treat T ECT reactors utilizing medium-pressure lamps. Hydrogen peroxidewas also added to the reactor influent at concentrations varying from zero to 11 ppm.This system treated flows up to 6 MGD. The results of the pilot study clearlydemonstrated that the UV-oxidation treatment process is an effective and efficient processfor the treatment of MIB and geosmin in drinking water to levels below the odor thresholdvalues and, in fact, below the analytical detection limits. Several sample sets were analyzedfor disinfection byproducts including haloacetic acids (HAAs), trihalomethanes (THMs)and bromate and the results indicated that the UV/H2O2 process reduced THM and HAAlevels by an average of 25% and 12% respectively with no bromate formation. Thesesamples were also analyzed for assimilable organic carbon (AOC) levels before and aftertreatment and the results indicate that no statistically significant increases were observed. Includes 3 references, figures.

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Edition: Vol. - No. Published: 11/01/2005 Number of Pages: 4File Size: 1 file , 190 KB