Mass Transfer Coefficient of Ozone in a Bubble Column
The effect of flow rate of ozone-containing gas and pH on the mass transfer coefficient of ozone through water in a bubble column reactor has been studied. Ozone was generated from air using a corona discharge ozone generator. The flow rate of air was varied from 2 to 5 L min-1, while pH was varied...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201815602015 |
| _version_ | 1818622505069314048 |
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| author | Ratnawati Ratnawati Kusumaningtyas Dyah Arum Suseno Purbo Prasetyaningrum Aji |
| author_facet | Ratnawati Ratnawati Kusumaningtyas Dyah Arum Suseno Purbo Prasetyaningrum Aji |
| author_sort | Ratnawati Ratnawati |
| collection | DOAJ |
| description | The effect of flow rate of ozone-containing gas and pH on the mass transfer coefficient of ozone through water in a bubble column reactor has been studied. Ozone was generated from air using a corona discharge ozone generator. The flow rate of air was varied from 2 to 5 L min-1, while pH was varied from 4 to 10. The gas containing ozone was bubbled to the reactor containing 1.5 L of 2% KI solution. The temperature was set at 28±1ºC. The concentration of ozone was determined using titrimetric method every 5 minutes. The results show that the concentration of ozone increases with time, and it reaches a steady-state concentration after 30 minutes of ozonation. The gas flow rate and pH apparently affect both the concentration and the kLa. The highest kLa of 2.1 X 10-2 s-1 is obtained at pH 4 with a gas flow rate of 4 L min-1. |
| first_indexed | 2024-12-16T18:26:14Z |
| format | Article |
| id | doaj.art-a3f399b5a71649498f17a318cc2a7f31 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-16T18:26:14Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-a3f399b5a71649498f17a318cc2a7f312022-12-21T22:21:24ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011560201510.1051/matecconf/201815602015matecconf_rsce2018_02015Mass Transfer Coefficient of Ozone in a Bubble ColumnRatnawati RatnawatiKusumaningtyas Dyah ArumSuseno PurboPrasetyaningrum AjiThe effect of flow rate of ozone-containing gas and pH on the mass transfer coefficient of ozone through water in a bubble column reactor has been studied. Ozone was generated from air using a corona discharge ozone generator. The flow rate of air was varied from 2 to 5 L min-1, while pH was varied from 4 to 10. The gas containing ozone was bubbled to the reactor containing 1.5 L of 2% KI solution. The temperature was set at 28±1ºC. The concentration of ozone was determined using titrimetric method every 5 minutes. The results show that the concentration of ozone increases with time, and it reaches a steady-state concentration after 30 minutes of ozonation. The gas flow rate and pH apparently affect both the concentration and the kLa. The highest kLa of 2.1 X 10-2 s-1 is obtained at pH 4 with a gas flow rate of 4 L min-1.https://doi.org/10.1051/matecconf/201815602015 |
| spellingShingle | Ratnawati Ratnawati Kusumaningtyas Dyah Arum Suseno Purbo Prasetyaningrum Aji Mass Transfer Coefficient of Ozone in a Bubble Column MATEC Web of Conferences |
| title | Mass Transfer Coefficient of Ozone in a Bubble Column |
| title_full | Mass Transfer Coefficient of Ozone in a Bubble Column |
| title_fullStr | Mass Transfer Coefficient of Ozone in a Bubble Column |
| title_full_unstemmed | Mass Transfer Coefficient of Ozone in a Bubble Column |
| title_short | Mass Transfer Coefficient of Ozone in a Bubble Column |
| title_sort | mass transfer coefficient of ozone in a bubble column |
| url | https://doi.org/10.1051/matecconf/201815602015 |
| work_keys_str_mv | AT ratnawatiratnawati masstransfercoefficientofozoneinabubblecolumn AT kusumaningtyasdyaharum masstransfercoefficientofozoneinabubblecolumn AT susenopurbo masstransfercoefficientofozoneinabubblecolumn AT prasetyaningrumaji masstransfercoefficientofozoneinabubblecolumn |