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Required ozone doses for removing pharmaceuticals from wastewater effluents

Antoniou, Maria G. ; Hey, Gerly LU ; Rodriguez Vega, Sergio ; Spiliotopoulou, Aikaterini ; Fick, Jerker ; Tysklind, Mats ; la Cour Jansen, Jes LU and Andersen, Henrik Rasmus (2013) In Science of the Total Environment 456. p.42-49
Abstract
The aim of the this study was to investigate the ozone dosage required to remove active pharmaceutical ingredients (APIs) from biologically treated wastewater of varying quality, originated from different raw wastewater and wastewater treatment processes. Secondary effluents from six Swedish wastewater treatment plants (WWTP) were spiked with 42 APIs (nominal concentration 1 mu g/L) and treated with different O-3 doses (0.5-12.0 mg/L ozone) in bench-scale experiments. In order to compare the sensitivity of APIs in each matrix, the specific dose of ozone required to achieve reduction by one decade of each investigated API (DDO3) was determined for each effluent by fitting a first order equation to the remaining concentration of API at each... (More)
The aim of the this study was to investigate the ozone dosage required to remove active pharmaceutical ingredients (APIs) from biologically treated wastewater of varying quality, originated from different raw wastewater and wastewater treatment processes. Secondary effluents from six Swedish wastewater treatment plants (WWTP) were spiked with 42 APIs (nominal concentration 1 mu g/L) and treated with different O-3 doses (0.5-12.0 mg/L ozone) in bench-scale experiments. In order to compare the sensitivity of APIs in each matrix, the specific dose of ozone required to achieve reduction by one decade of each investigated API (DDO3) was determined for each effluent by fitting a first order equation to the remaining concentration of API at each applied ozone dose. Ozone dose requirements were found to vary significantly between effluents depending on their matrix characteristics. The specific ozone dose was then normalized to the dissolved organic carbon (DOC) of each effluent. The DDO3/DOC ratios were comparable for each API between the effluents. 15 of the 42 investigated APIs could be classified as easily degradable (DDO3/DOC <= 0.7), while 19 were moderately degradable (0.7 < DDO3/DOC <= 1.4), and 8 were recalcitrant towards O-3-treatment (DDO3/DOC > 1.4). Furthermore, we predict that a reasonable estimate of the ozone dose required to remove any of the investigated APIs may be attained by multiplying the experimental average DDO3/DOC obtained with the actual DOC of any effluent. (C) 2013 Elsevier B.V. All rights reserved. (Less)
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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Matrix effect, Ozonation, Ozone dose, Pharmaceuticals, Wastewater
in
Science of the Total Environment
volume
456
pages
42 - 49
publisher
Elsevier
external identifiers
  • wos:000320343700006
  • scopus:84876447034
  • pmid:23584032
ISSN
1879-1026
DOI
10.1016/j.scitotenv.2013.03.072
language
English
LU publication?
yes
id
efb9c748-10d7-4f55-a43b-ed758fd5c064 (old id 3987329)
date added to LUP
2016-04-01 10:25:43
date last changed
2023-12-08 18:22:05
@article{efb9c748-10d7-4f55-a43b-ed758fd5c064,
  abstract     = {{The aim of the this study was to investigate the ozone dosage required to remove active pharmaceutical ingredients (APIs) from biologically treated wastewater of varying quality, originated from different raw wastewater and wastewater treatment processes. Secondary effluents from six Swedish wastewater treatment plants (WWTP) were spiked with 42 APIs (nominal concentration 1 mu g/L) and treated with different O-3 doses (0.5-12.0 mg/L ozone) in bench-scale experiments. In order to compare the sensitivity of APIs in each matrix, the specific dose of ozone required to achieve reduction by one decade of each investigated API (DDO3) was determined for each effluent by fitting a first order equation to the remaining concentration of API at each applied ozone dose. Ozone dose requirements were found to vary significantly between effluents depending on their matrix characteristics. The specific ozone dose was then normalized to the dissolved organic carbon (DOC) of each effluent. The DDO3/DOC ratios were comparable for each API between the effluents. 15 of the 42 investigated APIs could be classified as easily degradable (DDO3/DOC &lt;= 0.7), while 19 were moderately degradable (0.7 &lt; DDO3/DOC &lt;= 1.4), and 8 were recalcitrant towards O-3-treatment (DDO3/DOC &gt; 1.4). Furthermore, we predict that a reasonable estimate of the ozone dose required to remove any of the investigated APIs may be attained by multiplying the experimental average DDO3/DOC obtained with the actual DOC of any effluent. (C) 2013 Elsevier B.V. All rights reserved.}},
  author       = {{Antoniou, Maria G. and Hey, Gerly and Rodriguez Vega, Sergio and Spiliotopoulou, Aikaterini and Fick, Jerker and Tysklind, Mats and la Cour Jansen, Jes and Andersen, Henrik Rasmus}},
  issn         = {{1879-1026}},
  keywords     = {{Matrix effect; Ozonation; Ozone dose; Pharmaceuticals; Wastewater}},
  language     = {{eng}},
  pages        = {{42--49}},
  publisher    = {{Elsevier}},
  series       = {{Science of the Total Environment}},
  title        = {{Required ozone doses for removing pharmaceuticals from wastewater effluents}},
  url          = {{http://dx.doi.org/10.1016/j.scitotenv.2013.03.072}},
  doi          = {{10.1016/j.scitotenv.2013.03.072}},
  volume       = {{456}},
  year         = {{2013}},
}