Influence of Recycling Different Leachate Volumes on Refuse Anaerobic Degradation

Hernández-Berriel, Ma. C.; Mañón-Salas, C.; Sanchez–Yáñez, Juan Manuel; Fuente, Jorge Lugo-de la; Márquez-Benavides, Liliana

doi:10.2174/1875934301003010155

Cited by 10 publications

(6 citation statements)

References 32 publications

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“…Studies have shown that leachate recirculation produces stabilized leachates with good BOD/COD ratio [16]. Although a land ll may have most advanced leachate management practices, recycling process, in some researches, resulted in an imbalance between acidogenesis and methanogenesis in the land ll leachate [17,18]. The good BOD/COD ratio may mask a de ciency in the natural process.…”

Section: Resultsmentioning

confidence: 99%

DNA Metabarcoding of the Leachate Microbiota from Sanitary Landfill: potential for bioremediation process

Passarini

Moreira

Gómez

et al. 2021

Preprint

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Microbial profile knowledge is essential to news alternatives and improvements in current treatments and destinations of landfill leachate that contains a variety of toxic compounds produced by municipal solid waste (MSW) disposal. Environmental DNA metabarcoding is an efficient, quick, and low-cost methodology for whole communities’ characterization. In this respect, the leachate from the Sanitary Landfill of Foz do Iguaçu City showed mixed characteristics from both acid and methanogenic phases, and 16S rDNA metabarcoding suggested the dominance of fermenting bacteria belonging to Firmicutes phylum, followed by Proteobacteria, Bacteroidetes and Synergistetes. The leachate acidogenic phase ended up being masked in the chemical and physical analyzes, however was evidenced in the metabarcoding methodology. On the other hand, no specifically methanogenic group was detected in significant abundance. To future application using culturomics approaches to bioremediation the leachate sample presented groups extensively studied, especially the Pseudomonas genus to heavy metals treatments, such as cadmium.

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Section: Resultsmentioning

confidence: 99%

DNA Metabarcoding of the Leachate Microbiota from Sanitary Landfill: potential for bioremediation process

Passarini

Moreira

Gómez

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

DNA metabarcoding of the leachate microbiota from sanitary landfill: potential for bioremediation process

et al. 2021

View full text Add to dashboard Cite

Microbial pro le knowledge is essential to news alternatives and improvements in current treatments and destinations of land ll leachate that contains a variety of toxic compounds produced by municipal solid waste (MSW) disposal. Environmental DNA metabarcoding is an e cient, quick, and low-cost methodology for whole communities' characterization. In this respect, the leachate from the Sanitary Land ll of Foz do Iguaçu City showed mixed characteristics from both acid and methanogenic phases, and 16S rDNA metabarcoding suggested the dominance of fermenting bacteria belonging to Firmicutes phylum, followed by Proteobacteria, Bacteroidetes and Synergistetes. The leachate acidogenic phase ended up being masked in the chemical and physical analyzes, however was evidenced in the metabarcoding methodology. On the other hand, no speci cally methanogenic group was detected in signi cant abundance. To future application using culturomics approaches to bioremediation the leachate sample presented groups extensively studied, especially the Pseudomonas genus to heavy metals treatments, such as cadmium.

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“…Un factor fundamental en estas reacciones es el agua. Numerosos autores han observado cómo la velocidad de degradación crece drásticamente al aumentar el contenido de humedad del residuo (Benbelkacem et al 2010, Chugh et al 1998, Hernández-Berriel et al 2010, Olay-Romero et al 2014. Por eso la técnica clásica de clausura de vertederos aislando el residuo con capas impermeables en superficie consigue no sólo reducir la cantidad de lixiviados sino también parar la generación de gas, al detener la biodegradación dejando seco el vertedero.…”

Section: La Importancia De La Humedadunclassified

Biorrellenos: Perspectivas Tras Dos Décadas De Experiencias en El Mundo

Cortázar

Hernández-Berriel

Mañón-Salas

2016

Rev. Int. Contam. Ambie.

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Palabras clave: relleno sostenible, pasivo ambiental, recirculación de lixiviados, biogás, biodegradación RESUMENLas palabras biorrelleno, vertedero biorreactor, vertedero sostenible, resuenan con frecuencia en las reuniones técnicas y científicas de "basurólogos" desde hace tiempo. Sin embargo todavía existen muchos mitos en torno a esta técnica que, en algunos lugares, fundamentalmente de Estados Unidos, se lleva practicando durante más de veinte años. Este trabajo presenta una síntesis del estado actual del conocimiento sobre biorrellenos. Inicia revisando la historia de esta técnica, planteada por primera vez en los años 70 y aclarando sus objetivos, que son la degradación acelerada de los residuos municipales (RM), para evitar que sean o se conviertan en pasivos ambientales, así como sus ventajas e inconvenientes. Identificado el parámetro fundamental a controlar, la humedad de los RM, han surgido, según las condiciones de aireación, biorellenos anaeróbicos, semiaeróbicos, aeróbicos e híbridos. Como guía para los nuevos proyectos que se plantean y requieren en Iberoamérica, en este trabajo se reúnen las directrices generales de diseño y operación recomendables para nuevas instalaciones de biorrellenos anaeróbicos y semiaeróbicos, incluyendo los sistemas de recirculación de lixiviados y extracción del gas generado, los cambios principales respecto a la operación de un relleno tradicional y las necesidades de seguimiento. Como ejemplos se describen: una experiencia a escala real que ha servido como referencia innovadora a nivel mundial, un modelo de biorrelleno semiaeróbico aplicable a países de desarrollo intermedio y dos casos representativos del avance en este campo en Iberoamérica. Finalmente se presentan las perspectivas de avance de la técnica mediante investigación y en cuanto a su extensión en Iberoamérica.Key words: sustainable landfill, environmental liability, leachate recirculation, biogas, biodegradation ABSTRACT Concepts like 'bioreactor landfill' or 'sustainable landfill' have been resonating in specialized technical and scientific meetings for a long time. However, there are still many myths surrounding this technique which, in some places, mainly the United States, has been practiced for over twenty years. This paper summarizes the current state of knowledge on bioreactor landfills. It begins with a review of the history of this technique, proposed in the 70s for the first time. The objective of bioreactor practices is to accelerate the degradation Rev. Int. Contam. Ambie. 32 (Especial Residuos Sólidos) 91-111, 2016

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Influence of Recycling Different Leachate Volumes on Refuse Anaerobic Degradation

Cited by 10 publications

References 32 publications

DNA Metabarcoding of the Leachate Microbiota from Sanitary Landfill: potential for bioremediation process

DNA Metabarcoding of the Leachate Microbiota from Sanitary Landfill: potential for bioremediation process

DNA metabarcoding of the leachate microbiota from sanitary landfill: potential for bioremediation process

Biorrellenos: Perspectivas Tras Dos Décadas De Experiencias en El Mundo

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