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Organic Contaminant Abatement in Reclaimed Water by UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed by UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation.
Environ Sci Technol. 2016 Apr 05; 50(7):3809-19.ES

Abstract

UV/H2O2 processes can be applied to improve the quality of effluents from municipal wastewater treatment plants by attenuating trace organic contaminants (micropollutants). This study presents a kinetic model based on UV photolysis parameters, including UV absorption rate and quantum yield, and hydroxyl radical (·OH) oxidation parameters, including second-order rate constants for ·OH reactions and steady-state ·OH concentrations, that can be used to predict micropollutant abatement in wastewater. The UV/H2O2 kinetic model successfully predicted the abatement efficiencies of 16 target micropollutants in bench-scale UV and UV/H2O2 experiments in 10 secondary wastewater effluents. The model was then used to calculate the electric energies required to achieve specific levels of micropollutant abatement in several advanced wastewater treatment scenarios using various combinations of ozone, UV, and H2O2. UV/H2O2 is more energy-intensive than ozonation for abatement of most micropollutants. Nevertheless, UV/H2O2 is not limited by the formation of N-nitrosodimethylamine (NDMA) and bromate whereas ozonation may produce significant concentrations of these oxidation byproducts, as observed in some of the tested wastewater effluents. The combined process of O3/H2O2 followed by UV/H2O2, which may be warranted in some potable reuse applications, can achieve superior micropollutant abatement with reduced energy consumption compared to UV/H2O2 and reduced oxidation byproduct formation (i.e., NDMA and/or bromate) compared to conventional ozonation.

Authors+Show Affiliations

School of Environmental Science and Engineering, Gwangju Institute of Science and Technology , 123, Oryong-dong, Buk-gu, Gwangju 500-712, Korea. Eawag, Swiss Federal Institute of Aquatic Science and Technology , Ueberlandstrasse 133, P.O. Box 611, 8600 Duebendorf, Switzerland.Department of Civil and Environmental Engineering, University of Nevada, Las Vegas , Box 454015, 4505 S. Maryland Parkway, Las Vegas, Nevada 89154-4015, United States. Trussell Technologies, Inc. , 6540 Lusk Boulevard, Suite C274, San Diego, California 92121, United States. Applied Research and Development Center, Southern Nevada Water Authority , P.O. Box 99954, Las Vegas, Nevada 89193-9954, United States.Eawag, Swiss Federal Institute of Aquatic Science and Technology , Ueberlandstrasse 133, P.O. Box 611, 8600 Duebendorf, Switzerland. School of Architecture, Civil, and Environmental Engineering (ENAC), École Polytechnique Fédérale de Lausanne , CH-1015, Lausanne, Switzerland.Applied Research and Development Center, Southern Nevada Water Authority , P.O. Box 99954, Las Vegas, Nevada 89193-9954, United States.Trussell Technologies, Inc. , 6540 Lusk Boulevard, Suite C274, San Diego, California 92121, United States. Applied Research and Development Center, Southern Nevada Water Authority , P.O. Box 99954, Las Vegas, Nevada 89193-9954, United States.Applied Research and Development Center, Southern Nevada Water Authority , P.O. Box 99954, Las Vegas, Nevada 89193-9954, United States.Eawag, Swiss Federal Institute of Aquatic Science and Technology , Ueberlandstrasse 133, P.O. Box 611, 8600 Duebendorf, Switzerland.Department of Chemical and Environmental Engineering, University of Arizona , 1133 E. James E. Rogers Way, Harshbarger 108, Tucson, Arizona 85721-0011, United States.Eawag, Swiss Federal Institute of Aquatic Science and Technology , Ueberlandstrasse 133, P.O. Box 611, 8600 Duebendorf, Switzerland. School of Architecture, Civil, and Environmental Engineering (ENAC), École Polytechnique Fédérale de Lausanne , CH-1015, Lausanne, Switzerland.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26909504

Citation

Lee, Yunho, et al. "Organic Contaminant Abatement in Reclaimed Water By UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed By UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation." Environmental Science & Technology, vol. 50, no. 7, 2016, pp. 3809-19.
Lee Y, Gerrity D, Lee M, et al. Organic Contaminant Abatement in Reclaimed Water by UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed by UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation. Environ Sci Technol. 2016;50(7):3809-19.
Lee, Y., Gerrity, D., Lee, M., Gamage, S., Pisarenko, A., Trenholm, R. A., Canonica, S., Snyder, S. A., & von Gunten, U. (2016). Organic Contaminant Abatement in Reclaimed Water by UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed by UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation. Environmental Science & Technology, 50(7), 3809-19. https://doi.org/10.1021/acs.est.5b04904
Lee Y, et al. Organic Contaminant Abatement in Reclaimed Water By UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed By UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation. Environ Sci Technol. 2016 Apr 5;50(7):3809-19. PubMed PMID: 26909504.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Organic Contaminant Abatement in Reclaimed Water by UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed by UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation. AU - Lee,Yunho, AU - Gerrity,Daniel, AU - Lee,Minju, AU - Gamage,Sujanie, AU - Pisarenko,Aleksey, AU - Trenholm,Rebecca A, AU - Canonica,Silvio, AU - Snyder,Shane A, AU - von Gunten,Urs, Y1 - 2016/03/17/ PY - 2016/2/25/entrez PY - 2016/2/26/pubmed PY - 2016/12/15/medline SP - 3809 EP - 19 JF - Environmental science & technology JO - Environ Sci Technol VL - 50 IS - 7 N2 - UV/H2O2 processes can be applied to improve the quality of effluents from municipal wastewater treatment plants by attenuating trace organic contaminants (micropollutants). This study presents a kinetic model based on UV photolysis parameters, including UV absorption rate and quantum yield, and hydroxyl radical (·OH) oxidation parameters, including second-order rate constants for ·OH reactions and steady-state ·OH concentrations, that can be used to predict micropollutant abatement in wastewater. The UV/H2O2 kinetic model successfully predicted the abatement efficiencies of 16 target micropollutants in bench-scale UV and UV/H2O2 experiments in 10 secondary wastewater effluents. The model was then used to calculate the electric energies required to achieve specific levels of micropollutant abatement in several advanced wastewater treatment scenarios using various combinations of ozone, UV, and H2O2. UV/H2O2 is more energy-intensive than ozonation for abatement of most micropollutants. Nevertheless, UV/H2O2 is not limited by the formation of N-nitrosodimethylamine (NDMA) and bromate whereas ozonation may produce significant concentrations of these oxidation byproducts, as observed in some of the tested wastewater effluents. The combined process of O3/H2O2 followed by UV/H2O2, which may be warranted in some potable reuse applications, can achieve superior micropollutant abatement with reduced energy consumption compared to UV/H2O2 and reduced oxidation byproduct formation (i.e., NDMA and/or bromate) compared to conventional ozonation. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/26909504/Organic_Contaminant_Abatement_in_Reclaimed_Water_by_UV/H2O2_and_a_Combined_Process_Consisting_of_O3/H2O2_Followed_by_UV/H2O2:_Prediction_of_Abatement_Efficiency_Energy_Consumption_and_Byproduct_Formation_ L2 - https://doi.org/10.1021/acs.est.5b04904 DB - PRIME DP - Unbound Medicine ER -