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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/21616

Title: Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column
Authors: Lucas, Marco S.
Reis, Nuno M.
Li Puma, Gianluca
Keywords: Multi-orifice oscillatory baffled column
Ozonation
p-Hydroxybenzoic acid
Process intensification
Water and wastewater treatment
Issue Date: 2016
Publisher: © Elsevier
Citation: LUCAS, M.S., REIS, N.M. and LI PUMA, G., 2016. Intensification of ozonation processes in a novel, compact, multi-orifice oscillatory baffled column. Chemical Engineering Journal, 296, pp. 335-339.
Abstract: 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.
Description: This paper is in closed access until 15th Mar 2017.
Sponsor: This paper was funded by the Enterprise Office and the Enterprise Project Group of Loughborough University for funding the EPSRC Impact Acceleration Account project (EPG55-P4, EPG64-P2).
Version: Accepted for publication
DOI: 10.1016/j.cej.2016.03.050
URI: https://dspace.lboro.ac.uk/2134/21616
Publisher Link: http://dx.doi.org/10.1016/j.cej.2016.03.050
ISSN: 1385-8947
Appears in Collections:Closed Access (Chemical Engineering)

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