Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark
| Autor: | Carlos A. Arias, Bárbara Adrados, Jordi Morató, F. Codony, Eloy Bécares, Hans Brix, Leonardo Martín Pérez |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya. SUMMLab - Sustainability Measurement and Modeling Lab |
| Předmět: |
Biochemical oxygen demand
Enginyeria química::Química del medi ambient::Química de l'aigua [Àrees temàtiques de la UPC] Environmental Engineering WASTEWATER TREATMENT Sewage--Purification--Filtration Denmark 0208 environmental biotechnology Biotecnología del Medio Ambiente Bacterial diseases Aigües residuals -- Depuració INGENIERIA SANITARIA Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua [Àrees temàtiques de la UPC] Biotecnología Medioambiental 02 engineering and technology INGENIERÍAS Y TECNOLOGÍAS 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences BACTERIAL INDICATORS Microorganismes patògens Enginyeria agroalimentària::Ciències de la terra i de la vida::Microbiologia [Àrees temàtiques de la UPC] ANALISIS DEL AGUA Effluent 0105 earth and related environmental sciences Nature and Landscape Conservation Total suspended solids Filtres i filtració Suspended solids Malalties bacterianes Constructed wetlands Dinamarca Pulp and paper industry TRATAMIENTO DE AGUAS RESIDUALES REMOVAL OF MICROBES 020801 environmental engineering Coliform bacteria Aiguamolls Wastewater Pathogenic microorganisms BIOLOGICAL SAND FILTERS Biofilter Filters and filtration Environmental science Sewage treatment BIOFILTERS Land treatment of wastewater |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname Ecological Engineering. 2018, 124 Repositorio Institucional (UCA) Pontificia Universidad Católica Argentina instacron:UCA UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Adrados, B, Arias, C A, Perez, L M, Codony, F, Becares, E, Brix, H & Morato, J 2018, ' Comparison of removal efficiency of pathogenic microbes in four types of wastewater treatment systems in Denmark ', Ecological Engineering, vol. 124, pp. 1-6 . https://doi.org/10.1016/j.ecoleng.2018.09.013 |
| DOI: | 10.1016/j.ecoleng.2018.09.013 |
| Popis: | Fil: Adrados, B. Universitat Politècnica de Catalunya. Health and Environmental Microbiology Laboratory; España Fil: Adrados, B. Unesco Chair on Sustainability; España Fil: Arias, C. A. Aarhus University. Department of Bioscience. Dinamarca Fil: Pérez, Leonardo Martín. Pontificia Universidad Católica Argentina. Facultad de Química e Ingeniería de Rosario. Departamento de Investigación Institucional; Argentina Fil: Pérez, Leonardo Martín. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Pérez, Leonardo Martín. Universitat Politècnica de Catalunya. Health and Environmental Microbiology Laboratory; España Fil: Pérez, Leonardo Martín. Unesco Chair on Sustainability; España Fil: Codony, F. Laboratori Municipal de Mataró; España Fil: Bécares, E. University of León. Faculty of Environmental and Biological Sciences. Department of Biodiversity and Environmental Management; España Fil: Brix, H. Aarhus University. Department of Bioscience. Dinamarca Fil: Morató, J. Universitat Politècnica de Catalunya. Health and Environmental Microbiology Laboratory; España Fil: Morató, J. Unesco Chair on Sustainability; España 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). |
| Databáze: | OpenAIRE |
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