Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark
Abstract: The aim of the present work was to evaluate and compare the performance in the removal of pathogenic microbes in four different types of decentralized wastewater treatment systems, namely: horizontal flow constructed wetlands (HFCW), vertical flow constructed wetlands (VFCW), biological...
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| Formato: | Artículo |
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Elsevier
2020
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| Acceso en línea: | https://repositorio.uca.edu.ar/handle/123456789/9529 |
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I33-R139-123456789-95292025-02-20T18:59:54Z Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark Adrados, B. Arias, C. A. Pérez, Leonardo Martín Codony, F. Bécares, E. Brix, H. Morató Farreras, Jordi TRATAMIENTO DE AGUAS RESIDUALES INGENIERIA SANITARIA ANALISIS DEL AGUA Abstract: The aim of the present work was to evaluate and compare the performance in the removal of pathogenic microbes in four different types of decentralized wastewater treatment systems, namely: horizontal flow constructed wetlands (HFCW), vertical flow constructed wetlands (VFCW), biological sand filters (BSF) and biofilters (BF). All the systems analyzed are located in Jutland, Denmark. Water sampling took place during a three months period that covered from winter to spring. Conventional microbial indicators such as Escherichia coli, total coliforms (TC), intestinal enterococci and sulphite-reducing clostridia were quantified using traditional microbiological culture methods, whereas Bacteroides spp. determination was performed by quantitative PCR (qPCR). Other water quality parameters such as dissolved oxygen, biological oxygen demand (BOD5), total suspended solids (TSS), pH, temperature, ammonium concentration and conductivity of influent and effluent water samples were also analyzed. The results showed that bacterial indicators significantly reduced in all the systems analyzed. In general, BF showed the best performance in the removal of microbes for all bacteria studied, while BSF demonstrated an improved capacity to eliminate E. coli and TC. Contrarily, VFCW seems to be more effective reducing the amount of intestinal enterococci, sulphite-reducing clostridia, and Bacteroides spp. In the present study, HFCW were the less efficient wastewater treatment system for the elimination of the evaluated pathogens. However, the performance in the removal of microbes was still significant considering that such systems were the oldest under operation (with over 20 years of continuous task). 2020-03-10T23:24:07Z 2020-03-10T23:24:07Z 2018 Artículo Adrados, B. et al. Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark [en línea]. Ecological Engineering. 2018, 124. doi:10.1016/j.ecoleng.2018.09.013 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/9529 0925-8574 https://repositorio.uca.edu.ar/handle/123456789/9529 10.1016/j.ecoleng.2018.09.013 eng Acceso abierto. 24 meses de embargo http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Elsevier Ecological Engineering. 2018, 124 |
| institution |
Universidad Católica Argentina |
| institution_str |
I-33 |
| repository_str |
R-139 |
| collection |
Repositorio Institucional de la Universidad Católica Argentina (UCA) |
| language |
Inglés |
| topic |
TRATAMIENTO DE AGUAS RESIDUALES INGENIERIA SANITARIA ANALISIS DEL AGUA |
| spellingShingle |
TRATAMIENTO DE AGUAS RESIDUALES INGENIERIA SANITARIA ANALISIS DEL AGUA Adrados, B. Arias, C. A. Pérez, Leonardo Martín Codony, F. Bécares, E. Brix, H. Morató Farreras, Jordi Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark |
| topic_facet |
TRATAMIENTO DE AGUAS RESIDUALES INGENIERIA SANITARIA ANALISIS DEL AGUA |
| description |
Abstract: The aim of the present work was to evaluate and compare the performance in the removal of pathogenic microbes
in four different types of decentralized wastewater treatment systems, namely: horizontal flow constructed
wetlands (HFCW), vertical flow constructed wetlands (VFCW), biological sand filters (BSF) and biofilters
(BF). All the systems analyzed are located in Jutland, Denmark. Water sampling took place during a three
months period that covered from winter to spring. Conventional microbial indicators such as Escherichia coli,
total coliforms (TC), intestinal enterococci and sulphite-reducing clostridia were quantified using traditional
microbiological culture methods, whereas Bacteroides spp. determination was performed by quantitative PCR
(qPCR). Other water quality parameters such as dissolved oxygen, biological oxygen demand (BOD5), total
suspended solids (TSS), pH, temperature, ammonium concentration and conductivity of influent and effluent
water samples were also analyzed. The results showed that bacterial indicators significantly reduced in all the
systems analyzed. In general, BF showed the best performance in the removal of microbes for all bacteria studied,
while BSF demonstrated an improved capacity to eliminate E. coli and TC. Contrarily, VFCW seems to be
more effective reducing the amount of intestinal enterococci, sulphite-reducing clostridia, and Bacteroides spp. In
the present study, HFCW were the less efficient wastewater treatment system for the elimination of the evaluated
pathogens. However, the performance in the removal of microbes was still significant considering that such
systems were the oldest under operation (with over 20 years of continuous task). |
| format |
Artículo |
| author |
Adrados, B. Arias, C. A. Pérez, Leonardo Martín Codony, F. Bécares, E. Brix, H. Morató Farreras, Jordi |
| author_facet |
Adrados, B. Arias, C. A. Pérez, Leonardo Martín Codony, F. Bécares, E. Brix, H. Morató Farreras, Jordi |
| author_sort |
Adrados, B. |
| title |
Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark |
| title_short |
Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark |
| title_full |
Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark |
| title_fullStr |
Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark |
| title_full_unstemmed |
Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark |
| title_sort |
comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in denmark |
| publisher |
Elsevier |
| publishDate |
2020 |
| url |
https://repositorio.uca.edu.ar/handle/123456789/9529 |
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1824949955560734720 |