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42. Evaluation of UV/H2O2 treatment for the oxidation of pharmaceuticals in wastewater

Author

Rosario-Ortiz, Fernando L., Wert, Eric C., and Snyder, Shane A.

Subjects
*ULTRAVIOLET water treatment, *DRUGS, *WATER disinfection, *OXIDATION in water purification, *HYDROGEN peroxide, *LOW pressure (Science), *WASTEWATER treatment, *WATER purification adsorption, *HYDROXYL group
Abstract

Abstract: Advanced oxidation treatment using low pressure UV light coupled with hydrogen peroxide (UV/H2O2) was evaluated for the oxidation of six pharmaceuticals in three wastewater effluents. The removal of these six pharmaceuticals (meprobamate, carbamazepine, dilantin, atenolol, primidone and trimethoprim) varied between no observed removal and >90%. The role of the water quality (i.e., alkalinity, nitrite, and specifically effluent organic matter (EfOM)) on hydroxyl radical (ure was evaluated and used to explain the differences in pharmaceutical removal between the three wastewaters. Results indicated that the efficacy of UV/H2O2 treatment for the removal of pharmaceuticals from wastewater was a function of not only the concentration of EfOM but also its inherent reactivity towards emoval of pharmaceuticals also correlated with reductions in ultraviolet absorbance at 254nm (UV254), which offers utilities a surrogate to assess pharmaceutical removal efficiency during UV/H2O2 treatment. [Copyright &y& Elsevier]

Published
2010
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