Removal of dimethyl phthalate from water by ozone microbubbles
| Autor: | Pallab Ghosh, Abdisa Jabesa |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Ozone
Inorganic chemistry 0211 other engineering and technologies Alcohol 02 engineering and technology 010501 environmental sciences 01 natural sciences Organic compound Mineralization (biology) Scavenger Water Purification chemistry.chemical_compound Environmental Chemistry Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Pollutant chemistry.chemical_classification 021110 strategic defence & security studies Microbubbles Water Hydrogen Peroxide General Medicine Kinetics chemistry Environmental chemistry Hydroxyl radical Water Pollutants Chemical Dimethyl phthalate |
| Zdroj: | Environmental Technology. 38:2093-2103 |
| ISSN: | 1479-487X 0959-3330 |
| DOI: | 10.1080/09593330.2016.1246610 |
| Popis: | This work investigates the removal of dimethyl phthalate (DMP) from water using ozone microbubbles in a pilot plant of 20 dm3 capacity. Experiments were performed under various reaction conditions to examine the effects of the initial concentration of DMP, pH of the medium, ozone generation rate, and the role of H2O2 on the removal of DMP. The DMP present in water was effectively removed by the ozone microbubbles. The removal was effective in neutral and alkaline media. Increase in the initial concentration of the target pollutant negatively affected its removal efficiency. The removal efficiency dramatically increased from 1% to 99% when the ozone generation rate was increased from 0.28 to 1.94 mg s−1 at pH 7. The total organic carbon measurements revealed that a complete mineralization of DMP was achieved within 1.8 ks at the high ozone feed rate. The use of t-butyl alcohol as the hydroxyl radical scavenger confirmed that the reaction between the target organic compound and ·OH radical dominated... |
| Databáze: | OpenAIRE |
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