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Evaluating UV/H2O2 processes for methyl tert-butyl ether and tertiary butyl alcohol removal: effect of pretreatment options and light sources.
Water Res. 2008 Dec; 42(20):5045-53.WR

Abstract

In this paper, we evaluate the efficiency of UV/H2O2 process to remove methyl tert-butyl ether (MtBE) and tertiary butyl alcohol (tBA) from a drinking water source. Kinetic models were used to evaluate the removal efficiency of the UV/H2O2 technologies with different pretreatment options and light sources. Two commercial UV light sources, i.e. low pressure, high intensity lamps and medium pressure, high intensity lamps, were evaluated. The following pretreatment alternatives were evaluated: (1) ion exchange softening with seawater regeneration (NaIX); (2) Pellet Softening; (3) weak acid ion exchange (WAIX); and (4) high pH lime softening followed by reverse osmosis (RO). The presence or absence of a dealkalization step prior to the UV/H2O2 Advanced Oxidation Process (AOP) was also evaluated for each pretreatment possibility. Pretreatment has a significant impact on the performance of UV/H2O2 process. The NaIX with dealkalization was shown to be the most cost effective. The electrical energy per order (EEO) values for MtBE and tBA using low pressure high output UV lamps (LPUV) and 10mg/LH2O2 are 0.77 and 3.0 kWh/kgal-order, or 0.20 and 0.79 kWh/m3-order, respectively. For medium pressure UV high output lamps (MPUV), EEO values for MtBE and tBA are 4.6 and 15 kWh/kgal-order, or 1.2 and 4.0 kWh/m3-order, for the same H2O2 dosage.

Authors+Show Affiliations

Department of Civil and Environmental Engineering, Arizona State University, P.O. Box 875306, Tempe, AZ 85287-5306, USA. keli@asu.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18951605

Citation

Li, Ke, et al. "Evaluating UV/H2O2 Processes for Methyl Tert-butyl Ether and Tertiary Butyl Alcohol Removal: Effect of Pretreatment Options and Light Sources." Water Research, vol. 42, no. 20, 2008, pp. 5045-53.
Li K, Hokanson DR, Crittenden JC, et al. Evaluating UV/H2O2 processes for methyl tert-butyl ether and tertiary butyl alcohol removal: effect of pretreatment options and light sources. Water Res. 2008;42(20):5045-53.
Li, K., Hokanson, D. R., Crittenden, J. C., Trussell, R. R., & Minakata, D. (2008). Evaluating UV/H2O2 processes for methyl tert-butyl ether and tertiary butyl alcohol removal: effect of pretreatment options and light sources. Water Research, 42(20), 5045-53. https://doi.org/10.1016/j.watres.2008.09.017
Li K, et al. Evaluating UV/H2O2 Processes for Methyl Tert-butyl Ether and Tertiary Butyl Alcohol Removal: Effect of Pretreatment Options and Light Sources. Water Res. 2008;42(20):5045-53. PubMed PMID: 18951605.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Evaluating UV/H2O2 processes for methyl tert-butyl ether and tertiary butyl alcohol removal: effect of pretreatment options and light sources. AU - Li,Ke, AU - Hokanson,David R, AU - Crittenden,John C, AU - Trussell,Rhodes R, AU - Minakata,Daisuke, Y1 - 2008/10/01/ PY - 2008/05/29/received PY - 2008/09/09/revised PY - 2008/09/16/accepted PY - 2008/10/28/pubmed PY - 2009/2/27/medline PY - 2008/10/28/entrez SP - 5045 EP - 53 JF - Water research JO - Water Res VL - 42 IS - 20 N2 - In this paper, we evaluate the efficiency of UV/H2O2 process to remove methyl tert-butyl ether (MtBE) and tertiary butyl alcohol (tBA) from a drinking water source. Kinetic models were used to evaluate the removal efficiency of the UV/H2O2 technologies with different pretreatment options and light sources. Two commercial UV light sources, i.e. low pressure, high intensity lamps and medium pressure, high intensity lamps, were evaluated. The following pretreatment alternatives were evaluated: (1) ion exchange softening with seawater regeneration (NaIX); (2) Pellet Softening; (3) weak acid ion exchange (WAIX); and (4) high pH lime softening followed by reverse osmosis (RO). The presence or absence of a dealkalization step prior to the UV/H2O2 Advanced Oxidation Process (AOP) was also evaluated for each pretreatment possibility. Pretreatment has a significant impact on the performance of UV/H2O2 process. The NaIX with dealkalization was shown to be the most cost effective. The electrical energy per order (EEO) values for MtBE and tBA using low pressure high output UV lamps (LPUV) and 10mg/LH2O2 are 0.77 and 3.0 kWh/kgal-order, or 0.20 and 0.79 kWh/m3-order, respectively. For medium pressure UV high output lamps (MPUV), EEO values for MtBE and tBA are 4.6 and 15 kWh/kgal-order, or 1.2 and 4.0 kWh/m3-order, for the same H2O2 dosage. SN - 0043-1354 UR - https://www.unboundmedicine.com/medline/citation/18951605/Evaluating_UV/H2O2_processes_for_methyl_tert_butyl_ether_and_tertiary_butyl_alcohol_removal:_effect_of_pretreatment_options_and_light_sources_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(08)00415-6 DB - PRIME DP - Unbound Medicine ER -