| Issue |
MATEC Web Conf.
Volume 156, 2018
The 24th Regional Symposium on Chemical Engineering (RSCE 2017)
|
|
|---|---|---|
| Article Number | 02015 | |
| Number of page(s) | 4 | |
| Section | Chemical Engineering Fundamentals | |
| DOI | https://doi.org/10.1051/matecconf/201815602015 | |
| Published online | 14 March 2018 | |
Mass Transfer Coefficient of Ozone in a Bubble Column
Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Semarang 50275, Indonesia
* Corresponding author: ratnawati.hartono@gmail.com
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.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.