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Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column
A novel approach for the intensification of ozonation of water and wastewater is presented using a highly efficient and compact Multi-Orifice Oscillatory Baffled Column (MOBC) ozonation contactor. The MOBC uniquely yielded full (i.e. 100%) use of the ozone supplied with a very short (2.25 min) liqui...
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| Format: | Default Article |
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2016
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| Online Access: | https://hdl.handle.net/2134/21616 |
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| _version_ | 1818171974153666560 |
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| author | Marco S. Lucas Nuno Reis Gianluca Li-Puma |
| author_facet | Marco S. Lucas Nuno Reis Gianluca Li-Puma |
| author_sort | Marco S. Lucas (7128254) |
| collection | Figshare |
| description | A novel approach for the intensification of ozonation of water and wastewater is presented using a highly efficient and compact Multi-Orifice Oscillatory Baffled Column (MOBC) ozonation contactor. The MOBC uniquely yielded full (i.e. 100%) use of the ozone supplied with a very short (2.25 min) liquid contact time under continuous operation and reducing the need of further gas-liquid contacting equipment downstream from the MOBC. The increased performance of the MOBC ozonation reactor was benchmarked against a bubble column (BC) design and resulted in 20% increase on the rate of p-hydroxybenzoic acid (p-HBA) degradation, 75% increase in the rate of mineralization of p-HBA per mole of ozone consumed, and 3.2-fold increase in the rate of mineralization of p-HBA per mole of ozone supplied. This results from the very small size of bubbles (few hundreds of microns) and enhanced gas-liquid mass transfer and hold-up generated in the presence of small fluid pulsations and orifice baffles. |
| format | Default Article |
| id | rr-article-9245129 |
| institution | Loughborough University |
| publishDate | 2016 |
| record_format | Figshare |
| spelling | rr-article-92451292016-01-01T00:00:00Z Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column Marco S. Lucas (7128254) Nuno Reis (1254129) Gianluca Li-Puma (1252566) Chemical engineering not elsewhere classified Multi-orifice oscillatory baffled column Ozonation p-Hydroxybenzoic acid Process intensification Water and wastewater treatment Chemical Engineering not elsewhere classified A novel approach for the intensification of ozonation of water and wastewater is presented using a highly efficient and compact Multi-Orifice Oscillatory Baffled Column (MOBC) ozonation contactor. The MOBC uniquely yielded full (i.e. 100%) use of the ozone supplied with a very short (2.25 min) liquid contact time under continuous operation and reducing the need of further gas-liquid contacting equipment downstream from the MOBC. The increased performance of the MOBC ozonation reactor was benchmarked against a bubble column (BC) design and resulted in 20% increase on the rate of p-hydroxybenzoic acid (p-HBA) degradation, 75% increase in the rate of mineralization of p-HBA per mole of ozone consumed, and 3.2-fold increase in the rate of mineralization of p-HBA per mole of ozone supplied. This results from the very small size of bubbles (few hundreds of microns) and enhanced gas-liquid mass transfer and hold-up generated in the presence of small fluid pulsations and orifice baffles. 2016-01-01T00:00:00Z Text Journal contribution 2134/21616 https://figshare.com/articles/journal_contribution/Intensification_of_ozonation_processes_in_a_novel_compact_multi-orifice_oscillatory_baffled_column/9245129 CC BY-NC-ND 4.0 |
| spellingShingle | Chemical engineering not elsewhere classified Multi-orifice oscillatory baffled column Ozonation p-Hydroxybenzoic acid Process intensification Water and wastewater treatment Chemical Engineering not elsewhere classified Marco S. Lucas Nuno Reis Gianluca Li-Puma Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column |
| title | Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column |
| title_full | Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column |
| title_fullStr | Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column |
| title_full_unstemmed | Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column |
| title_short | Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column |
| title_sort | intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column |
| topic | Chemical engineering not elsewhere classified Multi-orifice oscillatory baffled column Ozonation p-Hydroxybenzoic acid Process intensification Water and wastewater treatment Chemical Engineering not elsewhere classified |
| url | https://hdl.handle.net/2134/21616 |