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Influence of operational conditions and wastewater properties on the removal of organic micropollutants through ozonation

Ekblad, M. LU ; Juárez, R. LU orcid ; Falås, P. LU ; Bester, K. ; Hagman, M. LU and Cimbritz, M. LU (2021) In Journal of Environmental Management 286.
Abstract

The objective of this study was to evaluate the influence of operational conditions and wastewater properties on the removal of pharmaceuticals, contrast media and antibiotics through ozonation, in order to facilitate the optimization of treatment and its implementation on a full scale. Pilot-scale ozone oxidation trials were performed on treated wastewater, before and after post-precipitation, over a seven-month period, including summer and winter months. Hydraulic retention times as short as 7 min were found to be sufficient for organic micropollutant removal. A short hydraulic retention time reduces both investment costs and land use. Neither the choice of ozone dispersion method, a static mixer or a Venturi injector, nor the... (More)

The objective of this study was to evaluate the influence of operational conditions and wastewater properties on the removal of pharmaceuticals, contrast media and antibiotics through ozonation, in order to facilitate the optimization of treatment and its implementation on a full scale. Pilot-scale ozone oxidation trials were performed on treated wastewater, before and after post-precipitation, over a seven-month period, including summer and winter months. Hydraulic retention times as short as 7 min were found to be sufficient for organic micropollutant removal. A short hydraulic retention time reduces both investment costs and land use. Neither the choice of ozone dispersion method, a static mixer or a Venturi injector, nor the wastewater temperature had any significant effect on the removal efficiency of organic micropollutants, however, higher removal was achieved after on-site post-precipitation with aluminum chloride.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Contaminants of emerging concern, Ozone oxidation, Pharmaceuticals
in
Journal of Environmental Management
volume
286
article number
112205
publisher
Academic Press
external identifiers
  • scopus:85101131688
  • pmid:33621847
ISSN
0301-4797
DOI
10.1016/j.jenvman.2021.112205
language
English
LU publication?
yes
id
820f76c1-ec93-4810-8f62-82e46117b4d4
date added to LUP
2021-12-23 10:47:47
date last changed
2025-04-04 14:00:10
@article{820f76c1-ec93-4810-8f62-82e46117b4d4,
  abstract     = {{<p>The objective of this study was to evaluate the influence of operational conditions and wastewater properties on the removal of pharmaceuticals, contrast media and antibiotics through ozonation, in order to facilitate the optimization of treatment and its implementation on a full scale. Pilot-scale ozone oxidation trials were performed on treated wastewater, before and after post-precipitation, over a seven-month period, including summer and winter months. Hydraulic retention times as short as 7 min were found to be sufficient for organic micropollutant removal. A short hydraulic retention time reduces both investment costs and land use. Neither the choice of ozone dispersion method, a static mixer or a Venturi injector, nor the wastewater temperature had any significant effect on the removal efficiency of organic micropollutants, however, higher removal was achieved after on-site post-precipitation with aluminum chloride.</p>}},
  author       = {{Ekblad, M. and Juárez, R. and Falås, P. and Bester, K. and Hagman, M. and Cimbritz, M.}},
  issn         = {{0301-4797}},
  keywords     = {{Contaminants of emerging concern; Ozone oxidation; Pharmaceuticals}},
  language     = {{eng}},
  publisher    = {{Academic Press}},
  series       = {{Journal of Environmental Management}},
  title        = {{Influence of operational conditions and wastewater properties on the removal of organic micropollutants through ozonation}},
  url          = {{http://dx.doi.org/10.1016/j.jenvman.2021.112205}},
  doi          = {{10.1016/j.jenvman.2021.112205}},
  volume       = {{286}},
  year         = {{2021}},
}