Typical Application of Sound Field in Wastewater Treatment with Fluidized Bed Photocatalytic Reactor
The effect of a sound field on wastewater treatment with a fluidized bed photocatalytic reactor (FBPR) was investigated. With Alizarin Green (AG) being the sole infectant, the Fe-doped TiO2 catalyst prepared was used as the fluidized media. According to the Langmuir-Hinshelwood model, the photocatal...
| Veröffentlicht in: | Water environment research : a research publication of the Water Environment Federation. - 1998. - 87(2015), 4 vom: 28. Apr., Seite 378-83 |
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| Weitere Verfasser: | , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2015
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| Zugriff auf das übergeordnete Werk: | Water environment research : a research publication of the Water Environment Federation |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Waste Water Water Pollutants, Chemical titanium dioxide 15FIX9V2JP Titanium D1JT611TNE Iron E1UOL152H7 |
| Zusammenfassung: | The effect of a sound field on wastewater treatment with a fluidized bed photocatalytic reactor (FBPR) was investigated. With Alizarin Green (AG) being the sole infectant, the Fe-doped TiO2 catalyst prepared was used as the fluidized media. According to the Langmuir-Hinshelwood model, the photocatalytic degradation follows the pseudo-first-order reaction kinetics with respect to the concentration of AG. Sound field application allowed the fluidization of the fine powder at high liquid flow rates; thus, the mass transfer rate between organic pollutant and particle photocatalyst was enhanced and the efficiency of degradation was increased. As expected, the degradation rate constant increased with increasing sound pressure level, as well as increased with increasing sound frequency ranging from 50 to 100 Hz, then further decreased with increasing sound frequency from 100 to 200 Hz. In addition, Fe doping is also responsible for the enhanced photocurrent response of the Fe-doped TiO2 nanoparticle in FBPR relative to pure TiO2 |
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| Beschreibung: | Date Completed 12.11.2015 Date Revised 07.12.2022 published: Print Citation Status MEDLINE |
| ISSN: | 1061-4303 |
| DOI: | 10.2175/106143015X14212658613910 |