Details
| Original language | English |
|---|---|
| Pages (from-to) | 364-370 |
| Number of pages | 7 |
| Journal | Water science and technology |
| Volume | 69 |
| Issue number | 2 |
| Early online date | 29 Oct 2013 |
| Publication status | Published - Jan 2014 |
Abstract
In contrast to previous discussion on general virus removal efficiency and identifying surrogates for human pathogenic viruses, this study focuses on virus retention within each step of a wastewater treatment plant (WWTP). Additionally, the influence of weather conditions on virus removal was addressed. To account for the virus retention, this study describes a mass balance of somatic coliphages (bacterial viruses) in a municipal WWTP, performed in the winter and summer seasons of 2011. In the winter season, the concentration of coliphages entering the WWTP was about 1 log lower than in summer. The mass balance in winter revealed a virus inactivation of 85.12 ± 13.97%. During the summer season, virus inactivation was significantly higher (95.25 ± 3.69%, p-value <0.05), most likely due to additional virus removal in the secondary clarifier by insolation. Thus, a total removal of coliphages of about 2.78 log units was obtained in summer compared to 1.95 log units in winter. Rainfall events did not statistically correlate with the concentrations of coliphages entering the WWTP in summer.
Keywords
- Activated sludge, Adenoviruses, Mass balance, Season, Somatic coliphages, Wastewater
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Engineering
- Environmental Science(all)
- Water Science and Technology
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In: Water science and technology, Vol. 69, No. 2, 01.2014, p. 364-370.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A mass balance approach to the fate of viruses in a municipal wastewater treatment plant during summer and winter seasons
AU - Ulbricht, Katharina
AU - Selinka, Hans Christoph
AU - Wolter, Stefanie
AU - Rosenwinkel, Karl Heinz
AU - Nogueira, Regina
N1 - Funding Information: We gratefully acknowledge the ‘Deutsche Forschungsgemeinschaft’ for financial support (Project ‘Pathogenic viruses in water: detection, transport and inactivation’, RO 1221/12-1)
PY - 2014/1
Y1 - 2014/1
N2 - In contrast to previous discussion on general virus removal efficiency and identifying surrogates for human pathogenic viruses, this study focuses on virus retention within each step of a wastewater treatment plant (WWTP). Additionally, the influence of weather conditions on virus removal was addressed. To account for the virus retention, this study describes a mass balance of somatic coliphages (bacterial viruses) in a municipal WWTP, performed in the winter and summer seasons of 2011. In the winter season, the concentration of coliphages entering the WWTP was about 1 log lower than in summer. The mass balance in winter revealed a virus inactivation of 85.12 ± 13.97%. During the summer season, virus inactivation was significantly higher (95.25 ± 3.69%, p-value <0.05), most likely due to additional virus removal in the secondary clarifier by insolation. Thus, a total removal of coliphages of about 2.78 log units was obtained in summer compared to 1.95 log units in winter. Rainfall events did not statistically correlate with the concentrations of coliphages entering the WWTP in summer.
AB - In contrast to previous discussion on general virus removal efficiency and identifying surrogates for human pathogenic viruses, this study focuses on virus retention within each step of a wastewater treatment plant (WWTP). Additionally, the influence of weather conditions on virus removal was addressed. To account for the virus retention, this study describes a mass balance of somatic coliphages (bacterial viruses) in a municipal WWTP, performed in the winter and summer seasons of 2011. In the winter season, the concentration of coliphages entering the WWTP was about 1 log lower than in summer. The mass balance in winter revealed a virus inactivation of 85.12 ± 13.97%. During the summer season, virus inactivation was significantly higher (95.25 ± 3.69%, p-value <0.05), most likely due to additional virus removal in the secondary clarifier by insolation. Thus, a total removal of coliphages of about 2.78 log units was obtained in summer compared to 1.95 log units in winter. Rainfall events did not statistically correlate with the concentrations of coliphages entering the WWTP in summer.
KW - Activated sludge
KW - Adenoviruses
KW - Mass balance
KW - Season
KW - Somatic coliphages
KW - Wastewater
UR - http://www.scopus.com/inward/record.url?scp=84896879678&partnerID=8YFLogxK
U2 - 10.2166/wst.2013.722
DO - 10.2166/wst.2013.722
M3 - Article
C2 - 24473307
AN - SCOPUS:84896879678
VL - 69
SP - 364
EP - 370
JO - Water science and technology
JF - Water science and technology
SN - 0273-1223
IS - 2
ER -