Evaluating UV/H2O2 processes for methyl tert-butyl ether and tertiary butyl alcohol removal: Effect of pretreatment options and light sources
Li, K; Hokanson, DR; Crittenden, JC; Trussell, RR; Minakata, D
HERO ID
611982
Reference Type
Journal Article
Year
2008
Language
English
PMID
| HERO ID | 611982 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Evaluating UV/H2O2 processes for methyl tert-butyl ether and tertiary butyl alcohol removal: Effect of pretreatment options and light sources |
| Authors | Li, K; Hokanson, DR; Crittenden, JC; Trussell, RR; Minakata, D |
| Journal | Water Research |
| Volume | 42 |
| Issue | 20 |
| Page Numbers | 5045-5053 |
| Abstract | 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 3.0kWh/kgal-order, or 0.20 and 0.79kWh/m<sup>3</sup>-order, respectively. For medium pressure UV high output lamps (MPUV), EEO values for MtBE and tBA are 4.6 and 15kWh/kgal-order, or 1.2 and 4.0kWh/m<sup>3</sup>-order, for the same H2O2 dosage. [Copyright 2008 Elsevier] Copyright of Water Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts) |
| Doi | 10.1016/j.watres.2008.09.017 |
| Pmid | 18951605 |
| Wosid | WOS:000262055900017 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000262055900017 |
| Is Public | Yes |
| Language Text | English |
| Keyword | WATER -- Purification -- Reverse osmosis process; BUTYL methyl ether; HYDROGEN peroxide; DRINKING water -- Purification; ULTRAVIOLET radiation; HYDROXYL group; BUTANOL; ION exchange; Electrical energy per order |
| Is Qa | No |