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DC Field | Value | Language |
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dc.citation.startPage | 169 | - |
dc.citation.title | WATER RESEARCH | - |
dc.citation.volume | 169 | - |
dc.contributor.author | Kim, Min Sik | - |
dc.contributor.author | Cha, Dongwon | - |
dc.contributor.author | Lee, Ki-Myeong | - |
dc.contributor.author | Lee, Hye-Jin | - |
dc.contributor.author | Kim, Taewan | - |
dc.contributor.author | Lee, Changha | - |
dc.date.accessioned | 2023-12-21T18:07:17Z | - |
dc.date.available | 2023-12-21T18:07:17Z | - |
dc.date.created | 2020-01-29 | - |
dc.date.issued | 2020-02 | - |
dc.description.abstract | This study demonstrates new empirical models to predict the decomposition of ozone (O3) and the exposures of oxidants (i.e., O3 and hydroxyl radical, [rad]OH) during the ozonation of natural waters. Four models were developed for the instantaneous O3 demand, first-order rate constant for the secondary O3 decay, O3 exposure (∫[O3]dt), and [rad]OH exposure ((∫[[rad]OH]dt)), as functions of five independent variables, namely the O3 dose, concentration of dissolved organic carbon (DOC), pH, alkalinity, and temperature. The models were derived by polynomial regression analysis of experimental data obtained by controlling variables in natural water samples from a single source water (Maegok water in Korea), and they exhibited high accuracies for regression (R2 = 0.99 for the three O3 models, and R2 = 0.96 for the [rad]OH exposure model). The three O3 models exhibited excellent internal validity for Maegok water samples of different conditions (that were not used for the model development). They also showed acceptable external validity for seven natural water samples collected from different sources (not Maegok water); the IOD model showed somewhat poor external validity. However, the [rad]OH exposure model showed relatively poor internal and external validity. The models for oxidant exposures were successfully used to predict the abatement of micropollutants by ozonation; the model predictions showed high accuracy for Maegok water, but not for the other natural waters. | - |
dc.identifier.bibliographicCitation | WATER RESEARCH, v.169, pp.169 | - |
dc.identifier.doi | 10.1016/j.watres.2019.115230 | - |
dc.identifier.issn | 0043-1354 | - |
dc.identifier.scopusid | 2-s2.0-85074239096 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30937 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0043135419310048?via%3Dihub | - |
dc.identifier.wosid | 000509632100033 | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Modeling of ozone decomposition, oxidant exposures, and the abatement of micropollutants during ozonation processes | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental; Environmental Sciences; Water Resources | - |
dc.relation.journalResearchArea | Engineering; Environmental Sciences & Ecology; Water Resources | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Hydroxyl radical | - |
dc.subject.keywordAuthor | Modeling | - |
dc.subject.keywordAuthor | Oxidant exposure | - |
dc.subject.keywordAuthor | Ozonation | - |
dc.subject.keywordAuthor | Ozone decomposition | - |
dc.subject.keywordPlus | Alkalinity | - |
dc.subject.keywordPlus | Decay (organic) | - |
dc.subject.keywordPlus | Forecasting | - |
dc.subject.keywordPlus | Models | - |
dc.subject.keywordPlus | Organic carbon | - |
dc.subject.keywordPlus | hydroxyl radical | - |
dc.subject.keywordPlus | organic carbon | - |
dc.subject.keywordPlus | organic matter | - |
dc.subject.keywordPlus | oxidizing agent | - |
dc.subject.keywordPlus | ozone | - |
dc.subject.keywordPlus | paracetamol | - |
dc.subject.keywordPlus | alkalinity | - |
dc.subject.keywordPlus | concentration (composition) | - |
dc.subject.keywordPlus | decomposition | - |
dc.subject.keywordPlus | dissolved organic carbon | - |
dc.subject.keywordPlus | empirical analysis | - |
dc.subject.keywordPlus | oxidant | - |
dc.subject.keywordPlus | ozonation | - |
dc.subject.keywordPlus | regression analysis | - |
dc.subject.keywordPlus | Article | - |
dc.subject.keywordPlus | external validity | - |
dc.subject.keywordPlus | oxidation | - |
dc.subject.keywordPlus | pH | - |
dc.subject.keywordPlus | pollutant | - |
dc.subject.keywordPlus | priority journal | - |
dc.subject.keywordPlus | total organic carbon | - |
dc.subject.keywordPlus | water supply | - |
dc.subject.keywordPlus | water temperature | - |
dc.subject.keywordPlus | oxidation reduction reaction | - |
dc.subject.keywordPlus | South Korea | - |
dc.subject.keywordPlus | water management | - |
dc.subject.keywordPlus | water pollutant | - |
dc.subject.keywordPlus | Hydroxyl Radical | - |
dc.subject.keywordPlus | Oxidants | - |
dc.subject.keywordPlus | Oxidation-Reduction | - |
dc.subject.keywordPlus | Ozone | - |
dc.subject.keywordPlus | Republic of Korea | - |
dc.subject.keywordPlus | Water Pollutants, Chemical | - |
dc.subject.keywordPlus | Water Purification | - |
dc.subject.keywordPlus | Ozonization | - |
dc.subject.keywordPlus | Rate constants | - |
dc.subject.keywordPlus | Regression analysis | - |
dc.subject.keywordPlus | Dissolved organic carbon | - |
dc.subject.keywordPlus | First-order rate constants | - |
dc.subject.keywordPlus | Hydroxyl radicals | - |
dc.subject.keywordPlus | Independent variables | - |
dc.subject.keywordPlus | Natural water samples | - |
dc.subject.keywordPlus | Oxidant exposure | - |
dc.subject.keywordPlus | Ozone decomposition | - |
dc.subject.keywordPlus | Polynomial regression analysis | - |
dc.subject.keywordPlus | Ozone water treatment | - |
dc.subject.keywordPlus | atrazine | - |
dc.subject.keywordPlus | caffeine | - |
dc.subject.keywordPlus | dissolved organic matter | - |
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