Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries

Este estudio evaluó la recirculación de lixiviados (LR) como una estrategia de estabilización para rellenos sanitarios utilizando experimentos de biorreactores con residuos excavados de un relleno sanitario tropical en Colombia. La evaluación experimental se realizó en dos biorreactores de 115 L, un...

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Autores:: Caicedo Concha, Diana Milena
Sandoval Cobo, John J.
Marmolejo Rebellón, Luis Fernando
Torres Lozada, Patricia
Fellner, Johann

Tipo de recurso:: Article of investigation

Fecha de publicación:: 2022

Institución:: Universidad Cooperativa de Colombia

Repositorio:: Repositorio UCC

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repository_id_str
dc.title.none.fl_str_mv	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
title	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
spellingShingle	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries Recirculación de lixiviados Metano Energía renovable Biogás Leachate recirculation Methane Renewable energy Biogas
title_short	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
title_full	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
title_fullStr	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
title_full_unstemmed	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
title_sort	Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries
dc.creator.fl_str_mv	Caicedo Concha, Diana Milena Sandoval Cobo, John J. Marmolejo Rebellón, Luis Fernando Torres Lozada, Patricia Fellner, Johann
dc.contributor.author.none.fl_str_mv	Caicedo Concha, Diana Milena Sandoval Cobo, John J. Marmolejo Rebellón, Luis Fernando Torres Lozada, Patricia Fellner, Johann
dc.subject.none.fl_str_mv	Recirculación de lixiviados Metano Energía renovable Biogás
topic	Recirculación de lixiviados Metano Energía renovable Biogás Leachate recirculation Methane Renewable energy Biogas
dc.subject.other.none.fl_str_mv	Leachate recirculation Methane Renewable energy Biogas
description	Este estudio evaluó la recirculación de lixiviados (LR) como una estrategia de estabilización para rellenos sanitarios utilizando experimentos de biorreactores con residuos excavados de un relleno sanitario tropical en Colombia. La evaluación experimental se realizó en dos biorreactores de 115 L, uno simulando la operación de un vertedero con LR, Br2, donde el lixiviado producido se recirculó a razón de 0,8 L d−1, y un sistema de control sin LR, Br1. Ambos sistemas alcanzaron valores indicadores de estabilización en base a materia seca (MS) para sólidos volátiles VS (<25% MS) y un potencial bioquímico de metano BMP (≤10 mL CH4 g −1 MS). Asimismo, hacia el final del experimento, el lixiviado generado en Br2 alcanzó valores indicadores de estabilización para DBO5 (<100 mg L-1) y la relación DBO (demanda biológica de oxígeno)/DQO (demanda química de oxígeno) (<0,1). Aunque el criterio de estabilización de DQO no se cumplió en ningún biorreactor (<200 mg L−1), la LR ayudó a liberar un 19% más de materia orgánica oxidable en Br2 que en Br1, lo que indica una reducción del potencial contaminante del residuo en el caso de vertidos incontrolados de lixiviados al medio ambiente. En cuanto a la producción de biogás, la generación de CH4 en Br2 fue más intensa y su producción acumulada fue un 34,5% superior a la de Br1; por lo tanto, Br2 alcanzó tasas de emisión de CH4, lo que indica una estabilización de residuos (<1,0 L CH4 m-2 h-1) antes que Br1, lo que muestra un efecto acelerador de LR sobre la degradación de residuos. Un balance de masa de carbono indicó que la degradación de los residuos, en términos de la mineralización inicial de carbono orgánico total y la descarga de gas C a través de CH4, fue mayor en Br2. Estos resultados demostrar el potencial de LR para acelerar la estabilización de un vertedero pero también para reducir las emisiones de gases de efecto invernadero en los sitios de disposición final donde también se captura y utiliza biogás para la producción de energía; un aspecto clave a la hora de mejorar la sostenibilidad de las operaciones de vertederos en los países en desarrollo.
publishDate	2022
dc.date.issued.none.fl_str_mv	2022-09
dc.date.accessioned.none.fl_str_mv	2023-09-21T16:24:22Z
dc.date.available.none.fl_str_mv	2023-09-21T16:24:22Z
dc.type.none.fl_str_mv	Artículos Científicos
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dc.type.coarversion.none.fl_str_mv	http://purl.org/coar/version/c_970fb48d4fbd8a85
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dc.identifier.issn.none.fl_str_mv	19961073
dc.identifier.uri.none.fl_str_mv	https://doi.org/10.3390/en15176494 https://hdl.handle.net/20.500.12494/52732
dc.identifier.bibliographicCitation.none.fl_str_mv	Sandoval-Cobo, Caicedo-Concha, D., Marmolejo-Rebellón, L., Torres-Lozada, P., & Fellner, J. (2022). Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries. Energies (Basel), 15(17), 6494–. https://doi.org/10.3390/en15176494
identifier_str_mv	19961073 Sandoval-Cobo, Caicedo-Concha, D., Marmolejo-Rebellón, L., Torres-Lozada, P., & Fellner, J. (2022). Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries. Energies (Basel), 15(17), 6494–. https://doi.org/10.3390/en15176494
url	https://doi.org/10.3390/en15176494 https://hdl.handle.net/20.500.12494/52732
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dc.relation.ispartofjournal.none.fl_str_mv	Energies (Basel)
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spelling	Caicedo Concha, Diana MilenaSandoval Cobo, John J.Marmolejo Rebellón, Luis FernandoTorres Lozada, PatriciaFellner, Johann15 (17)2023-09-21T16:24:22Z2023-09-21T16:24:22Z2022-0919961073https://doi.org/10.3390/en15176494https://hdl.handle.net/20.500.12494/52732Sandoval-Cobo, Caicedo-Concha, D., Marmolejo-Rebellón, L., Torres-Lozada, P., & Fellner, J. (2022). Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries. Energies (Basel), 15(17), 6494–. https://doi.org/10.3390/en15176494Este estudio evaluó la recirculación de lixiviados (LR) como una estrategia de estabilización para rellenos sanitarios utilizando experimentos de biorreactores con residuos excavados de un relleno sanitario tropical en Colombia. La evaluación experimental se realizó en dos biorreactores de 115 L, uno simulando la operación de un vertedero con LR, Br2, donde el lixiviado producido se recirculó a razón de 0,8 L d−1, y un sistema de control sin LR, Br1. Ambos sistemas alcanzaron valores indicadores de estabilización en base a materia seca (MS) para sólidos volátiles VS (<25% MS) y un potencial bioquímico de metano BMP (≤10 mL CH4 g −1 MS). Asimismo, hacia el final del experimento, el lixiviado generado en Br2 alcanzó valores indicadores de estabilización para DBO5 (<100 mg L-1) y la relación DBO (demanda biológica de oxígeno)/DQO (demanda química de oxígeno) (<0,1). Aunque el criterio de estabilización de DQO no se cumplió en ningún biorreactor (<200 mg L−1), la LR ayudó a liberar un 19% más de materia orgánica oxidable en Br2 que en Br1, lo que indica una reducción del potencial contaminante del residuo en el caso de vertidos incontrolados de lixiviados al medio ambiente. En cuanto a la producción de biogás, la generación de CH4 en Br2 fue más intensa y su producción acumulada fue un 34,5% superior a la de Br1; por lo tanto, Br2 alcanzó tasas de emisión de CH4, lo que indica una estabilización de residuos (<1,0 L CH4 m-2 h-1) antes que Br1, lo que muestra un efecto acelerador de LR sobre la degradación de residuos. Un balance de masa de carbono indicó que la degradación de los residuos, en términos de la mineralización inicial de carbono orgánico total y la descarga de gas C a través de CH4, fue mayor en Br2. Estos resultados demostrar el potencial de LR para acelerar la estabilización de un vertedero pero también para reducir las emisiones de gases de efecto invernadero en los sitios de disposición final donde también se captura y utiliza biogás para la producción de energía; un aspecto clave a la hora de mejorar la sostenibilidad de las operaciones de vertederos en los países en desarrollo.This study evaluated leachate recirculation (LR) as a stabilisation strategy for landfills using bioreactor experiments with excavated waste from a tropical landfill in Colombia. The experimental evaluation was performed in two 115 L bioreactors, one simulating the operation of a landfill with LR, Br2, where the leachate produced was recirculated at a rate of 0.8 L d−1 , and a control system without LR, Br1. Both systems reached stabilisation indicator values on a dry matter (DM) basis for volatile solids VS (<25% DM) and a biochemical methane potential BMP (≤10 mL CH4 g −1 DM). Likewise, towards the end of the experiment, the leachate generated in Br2 reached stabilisation indicator values for BOD5(<100 mg L−1) and the BOD (biological oxygen demand)/COD (chemical oxygen demand) ratio (<0.1). Although the stabilisation criterion for COD was not met in any bioreactor (<200 mg L−1), LR helped to release 19% more oxidisable organic matter in Br2 than in Br1, indicating a reduction in the contaminating potential of the waste in the case of uncontrolled discharges of leachate to the environment. Regarding biogas production, the generation of CH4 in Br2 was more intense and its cumulative production was 34.5% higher than Br1; thus, Br2 achieved CH4 emission rates, indicating waste stabilisation (<1.0 L CH4 m−2 h−1) sooner than Br1, showing an accelerating effect of LR on waste degradation. A carbon mass balance indicated that waste degradation, in terms of the initial total organic carbon mineralisation and the C gas discharge via CH4 , was greater in Br2. 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International Best Practices Guide for Landfill Gas Energy Project; Global Methane Initiative: Washington, DC, USA, 2012Recirculación de lixiviadosMetanoEnergía renovableBiogásLeachate recirculationMethaneRenewable energyBiogasEvaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing CountriesArtículos Científicoshttp://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionNINGUNAinfo:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2PublicationORIGINAL2022_leachate_recirculation2022_leachate_recirculationArtículoapplication/pdf2113025https://repository.ucc.edu.co/bitstreams/fcf576da-8165-45e8-b92c-96203cc2d4f0/download3fc57f38b972295be68227f9d867c64dMD51LICENSElicense.txtlicense.txttext/plain; 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Evaluation of Leachate Recirculation as a Stabilisation Strategy for Landfills in Developing Countries

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