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Insights into a packed bubble column for removal of several ozone-persistent TrOCs by ozonation : removal kinetics, energy efficiency and elimination prediction

Ze Liu (UGent) , Xuetong Yang (UGent) , Kristof Demeestere (UGent) and Stijn Van Hulle (UGent)
Author
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Abstract
Ozonation is an efficient method to remove trace organic contaminants (TrOCs) from (waste)water. However, high ozone dose requirement and energy consumption are still limiting its wider application for ozone-persistence TrOCs elimination. In this study, a packed bubble column is designed to enhance the ozone gasliquid mass transfer and consequentially improve ozone and hydroxyl radical ((OH)-O-center dot) exposures. An increase of 5-31% removal for five selected ozone-persistence TrOCs was observed in the packed bubble column in comparison to an unpacked bubble column under the same experimental settings. The energy consumption (E-EO) for 90% TrOCs removal in the packed column was in range of 0.99-2.76 kWh/m(3), which was 5-48% decrease after the use of packing materials. A kinetics-based approach based on the correlation between the concentration of target compounds, the second order reaction rate constants of these compounds with ozone and (OH)-O-center dot and the ozone and (OH)-O-center dot exposures was used to predict TrOCs removal. The predicted removal was consistent the measured removal, indicating that this prediction approach can be applied in packed system.
Keywords
Ozonation, Trace organic contaminants, Removal, Energy efficiency, Packed bubble column, Removal kinetics, WASTE-WATER, TRANSFORMATION PRODUCTS, MASS-TRANSFER, OXIDATION, DEGRADATION, MICROPOLLUTANTS, PHARMACEUTICALS, ENVIRONMENT, PARAMETERS, EFFLUENT

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MLA
Liu, Ze, et al. “Insights into a Packed Bubble Column for Removal of Several Ozone-Persistent TrOCs by Ozonation : Removal Kinetics, Energy Efficiency and Elimination Prediction.” SEPARATION AND PURIFICATION TECHNOLOGY, vol. 275, 2021, doi:10.1016/j.seppur.2021.119170.
APA
Liu, Z., Yang, X., Demeestere, K., & Van Hulle, S. (2021). Insights into a packed bubble column for removal of several ozone-persistent TrOCs by ozonation : removal kinetics, energy efficiency and elimination prediction. SEPARATION AND PURIFICATION TECHNOLOGY, 275. https://doi.org/10.1016/j.seppur.2021.119170
Chicago author-date
Liu, Ze, Xuetong Yang, Kristof Demeestere, and Stijn Van Hulle. 2021. “Insights into a Packed Bubble Column for Removal of Several Ozone-Persistent TrOCs by Ozonation : Removal Kinetics, Energy Efficiency and Elimination Prediction.” SEPARATION AND PURIFICATION TECHNOLOGY 275. https://doi.org/10.1016/j.seppur.2021.119170.
Chicago author-date (all authors)
Liu, Ze, Xuetong Yang, Kristof Demeestere, and Stijn Van Hulle. 2021. “Insights into a Packed Bubble Column for Removal of Several Ozone-Persistent TrOCs by Ozonation : Removal Kinetics, Energy Efficiency and Elimination Prediction.” SEPARATION AND PURIFICATION TECHNOLOGY 275. doi:10.1016/j.seppur.2021.119170.
Vancouver
1.
Liu Z, Yang X, Demeestere K, Van Hulle S. Insights into a packed bubble column for removal of several ozone-persistent TrOCs by ozonation : removal kinetics, energy efficiency and elimination prediction. SEPARATION AND PURIFICATION TECHNOLOGY. 2021;275.
IEEE
[1]
Z. Liu, X. Yang, K. Demeestere, and S. Van Hulle, “Insights into a packed bubble column for removal of several ozone-persistent TrOCs by ozonation : removal kinetics, energy efficiency and elimination prediction,” SEPARATION AND PURIFICATION TECHNOLOGY, vol. 275, 2021.
@article{8717628,
  abstract     = {{Ozonation is an efficient method to remove trace organic contaminants (TrOCs) from (waste)water. However, high ozone dose requirement and energy consumption are still limiting its wider application for ozone-persistence TrOCs elimination. In this study, a packed bubble column is designed to enhance the ozone gasliquid mass transfer and consequentially improve ozone and hydroxyl radical ((OH)-O-center dot) exposures. An increase of 5-31% removal for five selected ozone-persistence TrOCs was observed in the packed bubble column in comparison to an unpacked bubble column under the same experimental settings. The energy consumption (E-EO) for 90% TrOCs removal in the packed column was in range of 0.99-2.76 kWh/m(3), which was 5-48% decrease after the use of packing materials. A kinetics-based approach based on the correlation between the concentration of target compounds, the second order reaction rate constants of these compounds with ozone and (OH)-O-center dot and the ozone and (OH)-O-center dot exposures was used to predict TrOCs removal. The predicted removal was consistent the measured removal, indicating that this prediction approach can be applied in packed system.}},
  articleno    = {{119170}},
  author       = {{Liu, Ze and Yang, Xuetong and Demeestere, Kristof and Van Hulle, Stijn}},
  issn         = {{1383-5866}},
  journal      = {{SEPARATION AND PURIFICATION TECHNOLOGY}},
  keywords     = {{Ozonation,Trace organic contaminants,Removal,Energy efficiency,Packed bubble column,Removal kinetics,WASTE-WATER,TRANSFORMATION PRODUCTS,MASS-TRANSFER,OXIDATION,DEGRADATION,MICROPOLLUTANTS,PHARMACEUTICALS,ENVIRONMENT,PARAMETERS,EFFLUENT}},
  language     = {{eng}},
  pages        = {{8}},
  title        = {{Insights into a packed bubble column for removal of several ozone-persistent TrOCs by ozonation : removal kinetics, energy efficiency and elimination prediction}},
  url          = {{http://dx.doi.org/10.1016/j.seppur.2021.119170}},
  volume       = {{275}},
  year         = {{2021}},
}

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