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Ozonation efficiency in removing organic micro pollutants from wastewater with respect to hydraulic loading rates and different wastewaters

El-taliawy, H.; Ekblad, M. LU ; Nilsson, F.; Hagman, M. LU ; Paxeus, N.; Jönsson, K. LU ; Cimbritz, M. LU ; la Cour Jansen, J. LU and Bester, Kai (2017) In Chemical Engineering Journal 325. p.310-321
Abstract

Organic micro pollutants can be removed from water by ozonation. In this article we studied the performance of ozonation under real life conditions and compared results of the same ozonation pilot plant installed at different wastewater treatment plants (WWTPs) thus operating with different waters. The comparability of the removal and reaction rate constants from one waste water treatment plant were low in respect to reaction rate, removal as well as to response to the specific ozone dose. Neither pH-value nor residual nitrite concentrations were the driving force considering these differences. Further tests with different loadings were conducted at the same WWTP under different weather conditions. For the different hydraulic loading of... (More)

Organic micro pollutants can be removed from water by ozonation. In this article we studied the performance of ozonation under real life conditions and compared results of the same ozonation pilot plant installed at different wastewater treatment plants (WWTPs) thus operating with different waters. The comparability of the removal and reaction rate constants from one waste water treatment plant were low in respect to reaction rate, removal as well as to response to the specific ozone dose. Neither pH-value nor residual nitrite concentrations were the driving force considering these differences. Further tests with different loadings were conducted at the same WWTP under different weather conditions. For the different hydraulic loading of the biological plant, the ozonation was running with rather similar removal rates concerning the same specific (TOC normalized) ozone dose. The compounds that were removed quantitatively under dry weather were still removed well with three times dry weather flow. Using a dataset from one WWTP to optimize operation in another one is thus questionable.

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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Biocides, Loading of WWTPs, Pharmaceuticals, Reaction rate constants, Wastewater treatment
in
Chemical Engineering Journal
volume
325
pages
12 pages
publisher
Elsevier
external identifiers
  • scopus:85019903454
  • wos:000403733800031
ISSN
1385-8947
DOI
10.1016/j.cej.2017.05.019
language
English
LU publication?
yes
id
ffca6884-605d-40c4-ba9e-f61c823d5ae5
date added to LUP
2017-06-14 10:07:32
date last changed
2017-09-24 05:11:47
@article{ffca6884-605d-40c4-ba9e-f61c823d5ae5,
  abstract     = {<p>Organic micro pollutants can be removed from water by ozonation. In this article we studied the performance of ozonation under real life conditions and compared results of the same ozonation pilot plant installed at different wastewater treatment plants (WWTPs) thus operating with different waters. The comparability of the removal and reaction rate constants from one waste water treatment plant were low in respect to reaction rate, removal as well as to response to the specific ozone dose. Neither pH-value nor residual nitrite concentrations were the driving force considering these differences. Further tests with different loadings were conducted at the same WWTP under different weather conditions. For the different hydraulic loading of the biological plant, the ozonation was running with rather similar removal rates concerning the same specific (TOC normalized) ozone dose. The compounds that were removed quantitatively under dry weather were still removed well with three times dry weather flow. Using a dataset from one WWTP to optimize operation in another one is thus questionable.</p>},
  author       = {El-taliawy, H. and Ekblad, M. and Nilsson, F. and Hagman, M. and Paxeus, N. and Jönsson, K. and Cimbritz, M. and la Cour Jansen, J. and Bester, Kai},
  issn         = {1385-8947},
  keyword      = {Biocides,Loading of WWTPs,Pharmaceuticals,Reaction rate constants,Wastewater treatment},
  language     = {eng},
  month        = {10},
  pages        = {310--321},
  publisher    = {Elsevier},
  series       = {Chemical Engineering Journal},
  title        = {Ozonation efficiency in removing organic micro pollutants from wastewater with respect to hydraulic loading rates and different wastewaters},
  url          = {http://dx.doi.org/10.1016/j.cej.2017.05.019},
  volume       = {325},
  year         = {2017},
}