Influence of Conventional and Hybrid Septic Tank-Anaerobic Filter Configurations on the Hydrodynamics and Performance of Wastewater Treatment
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| Format: | Artículo científico |
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Universidad Nacional de Colombia
2023
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| _version_ | 1876447234222981120 |
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| author | Maricel Arias-Henao |
| author_facet | Maricel Arias-Henao |
| contents | Influence of Conventional and Hybrid Septic Tank-Anaerobic Filter Configurations on the Hydrodynamics and Performance of Wastewater Treatment Maricel Arias-Henao Diego Paredes-Cuervo Patricia Torres-Lozada Ingeniería septic tank anaerobic filter Anaerobic digestion hydrodynamic performance decentralized wastewater treatment Decentralized treatment is an adequate strategy to more sustainably treat municipal wastewater in rural and peri-urban areas. In light of the above, this study evaluated, on a pilot scale, the performance of an anaerobic configuration consisting of a septic tank (ST) and an anaerobic filter (AF) in two modalities: (i) a conventional system (CS) in separate reactors and (ii) a hybrid system (HS) with a ST and an AF in a single reactor -both with theoretical hydraulic retention times (HRTs) of 36, 30, 24, and 18 hours. The results indicated that the HS had a better performance (less variability) under the different conditions evaluated, achieving, at an HRT of 18 hours, higher reduction efficiencies (52,0±16,8% COD and 73,06±18,5% TSS) compared to the CS (39,8±13,1% COD and 65,8±20,52% TSS). Although hydrodynamic analysis showed dual flow (full mix and plug flow) in both configurations, the HS exhibited a greater predominance of plug flow (62%) than the CS (52%), which allowed the former to reach a real HRT closer to the theoretical value than the latter (23/24 vs. 19/24 hours). This behavior guarantees the lowest occurrence of dead zones and short circuits, as well as a higher Persson hydraulic efficiency (0,62) and lower area requirements for the HS in comparison with the CS (0,5). 2023 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64379910011 https://www.redalyc.org/journal/643/64379910011/ https://www.redalyc.org/journal/643/64379910011/html/ https://www.redalyc.org/journal/643/64379910011/64379910011.epub https://www.redalyc.org/journal/643/64379910011/movil 10.15446/ing.investig.94617 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.2 Vol.43 |
| format | Artículo científico |
| id | redalyc_64379910011 |
| institution | Redalyc |
| language | en |
| publishDate | 2023 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Influence of Conventional and Hybrid Septic Tank-Anaerobic Filter Configurations on the Hydrodynamics and Performance of Wastewater Treatment Maricel Arias-Henao Ingeniería septic tank anaerobic filter Anaerobic digestion hydrodynamic performance decentralized wastewater treatment Influence of Conventional and Hybrid Septic Tank-Anaerobic Filter Configurations on the Hydrodynamics and Performance of Wastewater Treatment Maricel Arias-Henao Diego Paredes-Cuervo Patricia Torres-Lozada Ingeniería septic tank anaerobic filter Anaerobic digestion hydrodynamic performance decentralized wastewater treatment Decentralized treatment is an adequate strategy to more sustainably treat municipal wastewater in rural and peri-urban areas. In light of the above, this study evaluated, on a pilot scale, the performance of an anaerobic configuration consisting of a septic tank (ST) and an anaerobic filter (AF) in two modalities: (i) a conventional system (CS) in separate reactors and (ii) a hybrid system (HS) with a ST and an AF in a single reactor -both with theoretical hydraulic retention times (HRTs) of 36, 30, 24, and 18 hours. The results indicated that the HS had a better performance (less variability) under the different conditions evaluated, achieving, at an HRT of 18 hours, higher reduction efficiencies (52,0±16,8% COD and 73,06±18,5% TSS) compared to the CS (39,8±13,1% COD and 65,8±20,52% TSS). Although hydrodynamic analysis showed dual flow (full mix and plug flow) in both configurations, the HS exhibited a greater predominance of plug flow (62%) than the CS (52%), which allowed the former to reach a real HRT closer to the theoretical value than the latter (23/24 vs. 19/24 hours). This behavior guarantees the lowest occurrence of dead zones and short circuits, as well as a higher Persson hydraulic efficiency (0,62) and lower area requirements for the HS in comparison with the CS (0,5). 2023 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64379910011 https://www.redalyc.org/journal/643/64379910011/ https://www.redalyc.org/journal/643/64379910011/html/ https://www.redalyc.org/journal/643/64379910011/64379910011.epub https://www.redalyc.org/journal/643/64379910011/movil 10.15446/ing.investig.94617 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.2 Vol.43 |
| title | Influence of Conventional and Hybrid Septic Tank-Anaerobic Filter Configurations on the Hydrodynamics and Performance of Wastewater Treatment |
| topic | Ingeniería septic tank anaerobic filter Anaerobic digestion hydrodynamic performance decentralized wastewater treatment |
| url | https://www.redalyc.org/articulo.oa?id=64379910011 https://www.redalyc.org/journal/643/64379910011/ https://www.redalyc.org/journal/643/64379910011/html/ https://www.redalyc.org/journal/643/64379910011/64379910011.epub https://www.redalyc.org/journal/643/64379910011/movil |