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Diseño de un biofiltro para compuestos nitrogenados utilizando Chlamydomonas sp. procedentes de vallados de Mosquera- Cundinamarca
dc.contributor.advisor | Camacho Kurmen, Judith Elena | |
dc.contributor.author | Caicedo Pineda, Viviana | |
dc.date.accessioned | 2024-05-14T21:13:56Z | |
dc.date.available | 2024-05-14T21:13:56Z | |
dc.date.issued | 2023-03 | |
dc.identifier.uri | https://repositorio.unicolmayor.edu.co/handle/unicolmayor/6835 | |
dc.description.abstract | El aumento de la contaminación ha llevado a que en los ecosistemas acuáticos generen un desequilibrio bioquímico y biológico ocasionando pérdida de especies locales y migratorias, en especial en los humedales y los remanentes de estos, los vallados, que se encuentran localizados en zonas urbanas y/o rurales con constante ingreso de contaminantes. Por lo cual, la recuperación de estos ecosistemas, está enfocado en reducir compuestos nitrogenados que se relacionan con el aumento de eutrofización, a través del uso de microrganismos nativos, como las microalgas, aprovechando su metabolismo para reducir las concentraciones de amonio, nitrito y nitrato. Los objetivos de este trabajo fueron diseñar un biofiltro con capacidad de bioabsorción de compuestos nitrogenados utilizando microalgas libres y microencapsuladas, aisladas de cuerpos de agua de vallados así como determinar la capacidad del biofiltro diseñado para la bioabsorción de estos compuestos. El vallado utilizado presentó una concentración de Amonio (N-NH₄⁺) de 2,5 mg/l y de Nitrato (NO3-) de 2,2 mg/l, con un pH de 7. La microalga aislada pertenece al género Chlamydomonas sp. Esta microalga usa fuentes inorgánicas de nitrógeno para su crecimiento, lo cual permite aplicarla para biotratar aguas residuales con altos contenidos de compuestos nitrogenados. Se diseñaron los biofiltros utilizando 8,44 x 106 células/ ml de la microalga (μmax 0,077/día). Se observó que los biofiltros diseñados con la microalga bajo las condiciones trabajadas incrementaron el NH₄⁺ y NO3- presente, por lo que se necesita más investigación para optimizar los biofiltros y la eliminación de estos compuestos en el agua de los vallados. | spa |
dc.description.abstract | The increase in pollution has led aquatic ecosystems to generate a biochemical and biological imbalance, causing losses of local and migratory species, especially in wetlands and their remnants, the ditches, which are located in urban areas and/or rural with constant entry of contaminants. Therefore, the recovery of these ecosystems is focused on reducing nitrogenous compounds that are related to the increase in eutrophication, through the use of native microorganisms, such as microalgae, taking advantage of their metabolism to reduce ammonium, nitrite and nitrate concentrations. The objectives of this work are to design a biofilter with the capacity to remove nitrogenous compounds using free and microencapsulated microalgae, isolated from water bodies arising from ditches, as well as determine the capacity of the biofilter designed for the removal of these compounds. The sample taken from the stagnant water has an ammonium (N-NH₄⁺) concentration of 2.5 mg/l and nitrate (NO3-) of 2.2 mg/l, with a pH of 7. The isolated microalgae belongs to the genus Chlamydomonas sp. This microalga uses inorganic sources of nitrogen for its growth, which allows it to be used as biotreatment wastewater with high content of nitrogenous compounds. Biofilters were designed using 8,44 x 106 cells/ ml microalgae (μmax 0,077/day). It was observed that the biofilter designed with the microalga under the worked conditions increased the NH₄⁺ and NO3- present, therefore more research is needed to optimize the biofilters and the elimination of these compounds from the ditch. | eng |
dc.description.tableofcontents | Contenido 1. Introducción1 1.1 Planteamiento del problema 2 1.2 Justificación 3 2. Marco conceptual y generalidades 6 2.1 Marco conceptual y generalidades6 2.1.1 Ecosistemas acuáticos cuerpos de agua6 2.1.2 Contaminación de aguas 7 2.1.3 Eutrofización 7 2.1.4 Ciclo del nitrógeno y asimilación del NO2- NO3- y NH4+ 9 2.1.5 Chlamydomonas sp 11 2.1.6 Producción a gran escala-microalgas en fotobiorreactor 13 2.1.7 Métodos para la microencapsulación 15 2.1.8 Biofiltración16 3. Objetivos18 3.1 Objetivo general 18 3.2 Objetivos específicos 18 4. Diseño metodológico 19 4.1 Fase 1 Caracterización de las microalgas presentes en muestras colectadas de cuerpos de agua de vallados. 20 4.1.1 Caracterización físicoquímica de las aguas provenientes de vallados 20 4.1.2 Caracterización de las microalgas nativas20 4.1.3 Producción de biomasa de la microalga nativa en el biorreactor biostat a plus 22 4.1.4 Generación de las curvas de crecimiento 23 4.1.5 Determinación de los parámetros cinéticos de crecimiento23 4.1.6 Determinación de los cambios morfológicos celulares 23 4.1.7 Determinación de clorofila 23 4.2 Fase 2. Diseño del biofiltro con las microalgas libres y microencapsuladas aisladas de cuerpos de agua en vallados. 24 4.2.1 Microencapsulación de microalgas 24 4.2.2 Preparación del macrocápsulas 24 4.2.3 Caracterización de las macrocápsulas 25 4.2.4 Diseño del biofiltro 26 4.3 fase 3. Determinación de la capacidad del biofiltro diseñado con microalgas libres e inmovilizadas para bioabsorción de compuestos nitrogenados 26 4.3.1 Porcentaje de bioabsorción de N-NH4+ y N-NO327 4.3.2 Diseño experimental y análisis estadístico 27 5. Resultados y análisis 28 5.1 Caracterización fisicoquímica de las muestras del vallado 28 5.2 Caracterización y crecimiento de la cepa aislada del vallado30 5.2.1 Identificación molecular31 5.2.2 Producción de biomasa del alga nativa en el biorreactor biosat a plus 34 5.3 Diseño del biofiltro37 5.3.1 Microencapsulación 37 5.4 Valores de N-NH₄⁺ y NO3- después del tratamiento 46 6. Conclusiones 52 7. Recomendaciones 54 8. Referencias 56 9. Anexos 62 | spa |
dc.format.extent | 82p. | spa |
dc.format.mimetype | application/pdf | spa |
dc.language.iso | spa | spa |
dc.publisher | Universidad Colegio Mayor de Cundinamarca | spa |
dc.rights | Derechos reservados - Universidad Colegio Mayor de Cundinamarca, 2024 | spa |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | spa |
dc.title | Diseño de un biofiltro para compuestos nitrogenados utilizando Chlamydomonas sp. procedentes de vallados de Mosquera- Cundinamarca | spa |
dc.type | Trabajo de grado - Maestría | spa |
dc.contributor.corporatename | Universidad Colegio Mayor de Cundinamarca | spa |
dc.description.degreelevel | Maestría | spa |
dc.description.degreename | Magíster en Microbiología | spa |
dc.publisher.faculty | Facultad de Ciencias de la Salud | spa |
dc.publisher.place | Bogotá D.C., Colombia | spa |
dc.publisher.program | Maestría en Microbiología | spa |
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dc.rights.accessrights | info:eu-repo/semantics/closedAccess | spa |
dc.rights.creativecommons | Atribución-NoComercial 4.0 Internacional (CC BY-NC 4.0) | spa |
dc.subject.proposal | Eutrofización | spa |
dc.subject.proposal | Vallados | spa |
dc.subject.proposal | Microalgas | spa |
dc.subject.proposal | Biofiltración | spa |
dc.subject.proposal | Compuestos nitrogenados | spa |
dc.type.coar | http://purl.org/coar/resource_type/c_7a1f | spa |
dc.type.coarversion | http://purl.org/coar/version/c_970fb48d4fbd8a85 | spa |
dc.type.content | Text | spa |
dc.type.driver | info:eu-repo/semantics/masterThesis | spa |
dc.type.redcol | https://purl.org/redcol/resource_type/TM | spa |
dc.type.version | info:eu-repo/semantics/publishedVersion | spa |
dc.rights.coar | http://purl.org/coar/access_right/c_14cb | spa |