Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater
In this article, the utilization rate of organic and nitrogenous substrates contained in tannery wastewater by a sequential batch reactor is evaluated. Two factorial experimental designs (FEDs) were implemented. FED1 (22) used granular biomass, the aeration sequence (oxic, anaerobic-oxic) and cycle...
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| Format: | Article |
| Language: | English |
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Instituto Mexicano de Tecnología del Agua
2023-09-01
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| Series: | Tecnología y ciencias del agua |
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| Online Access: | https://revistatyca.org.mx/index.php/tyca/article/view/3124 |
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| author | Estefania Freytez-Boggio Adriana Mercedes Márquez-Romance Sandra Gabriela Barrazueta-Rojas Edilberto Guevara-Pérez |
| author_facet | Estefania Freytez-Boggio Adriana Mercedes Márquez-Romance Sandra Gabriela Barrazueta-Rojas Edilberto Guevara-Pérez |
| author_sort | Estefania Freytez-Boggio |
| collection | DOAJ |
| description | In this article, the utilization rate of organic and nitrogenous substrates contained in tannery wastewater by a sequential batch reactor is evaluated. Two factorial experimental designs (FEDs) were implemented. FED1 (22) used granular biomass, the aeration sequence (oxic, anaerobic-oxic) and cycle duration (6 and 24 h). FED2 (4 x 3) included suspended biomass, reaction phases (anoxic I, oxic, anoxic II (CND: conventional nitrification-denitrification) and (SND: simultaneous nitrification-denitrification), filling time (fast, slow and in stages). The substrates examined were chemical oxygen demand (COD), ammonium (NH4+-N) and total nitrogen Kjeldahl (TKN). The utilization rates were COD (-100 and -200 mg l-1 h-1) (FED1) and (-48 and -75 mg l-1 h-1) (FED2), being 1.5 to 2 times higher in FED1 than FED2. In TKN (-5 mg l-1 h-1), and NH4+-N (-30 mg l-1 h-1), they were significant in the anoxic I and oxic phases. |
| first_indexed | 2024-03-08T23:26:05Z |
| format | Article |
| id | doaj.art-c8d67bed8fe141fcbce7dcb8f8060805 |
| institution | Directory Open Access Journal |
| issn | 0187-8336 2007-2422 |
| language | English |
| last_indexed | 2024-03-08T23:26:05Z |
| publishDate | 2023-09-01 |
| publisher | Instituto Mexicano de Tecnología del Agua |
| record_format | Article |
| series | Tecnología y ciencias del agua |
| spelling | doaj.art-c8d67bed8fe141fcbce7dcb8f80608052023-12-14T17:19:37ZengInstituto Mexicano de Tecnología del AguaTecnología y ciencias del agua0187-83362007-24222023-09-011455411910.24850/j-tyca-14-05-024358Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewaterEstefania Freytez-Boggio0https://orcid.org/0000-0002-6133-5555Adriana Mercedes Márquez-Romance1https://orcid.org/0000-0003-2813-2147Sandra Gabriela Barrazueta-Rojas2https://orcid.org/0000-0003-2837-8390Edilberto Guevara-Pérez3https://orcid.org/0000-0003-2813-2147Programa de Ingeniería Agroindustrial, Universidad Centro-Occidental Lisandro Alvarado, VenezuelaCentro de Investigaciones Hidrológicas y Ambientales, Universidad de Carabobo, VenezuelaEscuela Superior Politécnica de Chimborazo (ESPOCH), EcuadorCentro de Investigaciones Hidrológicas y Ambientales, Escuela de Ingeniería Civil, Miembro de la Academia Nacional de Ingeniería y Habitar de Venezuela, Venezuela In this article, the utilization rate of organic and nitrogenous substrates contained in tannery wastewater by a sequential batch reactor is evaluated. Two factorial experimental designs (FEDs) were implemented. FED1 (22) used granular biomass, the aeration sequence (oxic, anaerobic-oxic) and cycle duration (6 and 24 h). FED2 (4 x 3) included suspended biomass, reaction phases (anoxic I, oxic, anoxic II (CND: conventional nitrification-denitrification) and (SND: simultaneous nitrification-denitrification), filling time (fast, slow and in stages). The substrates examined were chemical oxygen demand (COD), ammonium (NH4+-N) and total nitrogen Kjeldahl (TKN). The utilization rates were COD (-100 and -200 mg l-1 h-1) (FED1) and (-48 and -75 mg l-1 h-1) (FED2), being 1.5 to 2 times higher in FED1 than FED2. In TKN (-5 mg l-1 h-1), and NH4+-N (-30 mg l-1 h-1), they were significant in the anoxic I and oxic phases.https://revistatyca.org.mx/index.php/tyca/article/view/3124sequencing batch reactorsubstrate utilization ratenitrificationdenitrification |
| spellingShingle | Estefania Freytez-Boggio Adriana Mercedes Márquez-Romance Sandra Gabriela Barrazueta-Rojas Edilberto Guevara-Pérez Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater Tecnología y ciencias del agua sequencing batch reactor substrate utilization rate nitrification denitrification |
| title | Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater |
| title_full | Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater |
| title_fullStr | Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater |
| title_full_unstemmed | Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater |
| title_short | Assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater |
| title_sort | assessment of the utilization rate of organic and nitrogenated substrates by the microorganisms in a sequencing batch reactor treating tannery wastewater |
| topic | sequencing batch reactor substrate utilization rate nitrification denitrification |
| url | https://revistatyca.org.mx/index.php/tyca/article/view/3124 |
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