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

被引：233

作者：

Rosario-Ortiz, Fernando L. ^{[1
]}

Wert, Eric C. ^{[1
]}

Snyder, Shane A. ^{[1
]}

机构：

[1] So Nevada Water Author, Las Vegas, NV 89193 USA

来源：

WATER RESEARCH | 2010年 / 44卷 / 05期

关键词：

Water reuse; Advanced oxidation process (AOP); Effluent organic matter (EfOM); UV; Hydrogen peroxide; Pharmaceutical removal; DISSOLVED ORGANIC-MATTER; ULTRAVIOLET ABSORBENCY; DEGRADATION KINETICS; OZONE OXIDATION; RATE CONSTANTS; SURFACE-WATER; UV; EFFLUENT; PHOTOLYSIS; OZONATION;

D O I：

10.1016/j.watres.2009.10.031

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 ((OH)-O-center dot) exposure 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 (OH)-O-center dot. The removal of pharmaceuticals also correlated with reductions in ultraviolet absorbance at 254 nm (UV254), which offers utilities a surrogate to assess pharmaceutical removal efficiency during UV/H2O2 treatment. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1440 / 1448

页数：9

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