Innovative two-stage anaerobic process for effective codigestion of cheese whey and cattle manure

Bertin, Lorenzo; Grilli, Selene; Spagni, Alessandro; Fava, Fabio

doi:10.1016/j.biortech.2012.10.118

Cited by 57 publications

(31 citation statements)

References 18 publications

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“…Los principales reactores utilizados son de tipo CSTR, pero sin embargo mediante la aplicación de reactores UASB se han podido obtener mayores producciones de gas [50][51]. Bertin et al [52], aplicaron un sistema de dos fases para la co-digestión con estiércol y lactosuero. Realizaron pruebas para determinar la proporción de mezcla más adecuada y compararon la operación de un sistema en continuo de 2 fases frente a un digestor individual.…”

Section: Co-digestión Anaerobiaunclassified

Procesos biológicos para el tratamiento de lactosuero con producción de biogás e hidrógeno. Revisión bibliográfica

Rodríguez

Torres

Palao

et al. 2016

rev.ion

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ResumenLa industria láctea se caracteriza por generar lactosuero como subproducto del proceso de elaboración del queso. El lactosuero presenta un elevado contenido en materia orgánica en forma de lactosa, proteínas y otros compuestos procedentes de la leche. Su vertido incontrolado puede ocasionar problemas de contaminación con un grave impacto ambiental. Sin embargo, la recuperación de algunos componentes del lactosuero permite valorizar este subproducto, encontrando aplicación en la industria alimentaria, farmacéutica y recientemente en la conversión del lactosuero para la producción de biocombustibles. Actualmente, los biocombustibles son una fuente potencial de energía renovable con un papel importante como posibles sustitutos de los combustibles fósiles. Por este motivo, la opción de gestionar el lactosuero mediante una valorización energética ha adquirido gran interés durante los últimos años. Entre las alternativas disponibles de aprovechamiento energético, se encuentra la digestión anaerobia, la cual es una de las tecnologías más empleadas para el tratamiento de diverso tipo de residuos. En el caso del lactosuero, se han desarrollado múltiples trabajos en los que se han utilizado diferentes confi guraciones y condiciones de operación con el objetivo de mejorar el funcionamiento del proceso. Gracias a estos trabajos se han podido identifi car algunos de los factores que limitan su aplicación como son: la tendencia a la acidifi cación o la limitación de nutrientes. Por este motivo se han promovido otras alternativas como son los procesos de co-digestión con varios materiales o la fermentación oscura. El objetivo de este artículo es la realización de una revisión bibliográfi ca de los principales trabajos realizados en los que se contemplan los procesos biológicos anteriormente mencionados. Se presentan los resultados más relevantes, así como la infl uencia de las condiciones de operación y los factores que afectan a la producción de biogás. AbstractDairy industry is characterized by high generation of cheese whey, a byproduct from cheese factories with a high organic matter content in the form of lactose, proteins and other compounds coming from processed milk. If it is not properly disposed it might favour serious environmental pollution problems. However, it is possible the application of recovery technologies in order to obtain its main compounds for further applications such as food or pharmaceutical industry, and for obtaining biofuels. Nowadays, biofuels are an important source of renewable energy as potential future alternative for fossil fuels. For this reason, 47Cita: Fernández Rodríguez C, Martínez Torres EJ, Morán Palao A, Gómez Barrios X. Procesos biológicos para el tratamiento de lactosuero con producción de biogás e hidrógeno. Revisión bibliográfi ca. rev.ion. 2016;29(1):47-62.

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Section: Co-digestión Anaerobiaunclassified

Procesos biológicos para el tratamiento de lactosuero con producción de biogás e hidrógeno. Revisión bibliográfica

Rodríguez

Torres

Palao

et al. 2016

rev.ion

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“…On the surface, this observation represents a paradox in that EHEC senses fucose, a prime carbon source, and yet diminishes its own capacity to use fucose. This can perhaps be explained by observations concerning carbon-source preference in physiological settings of bovine small intestine contents (64) and a murine infection model (65). Though fucose utilization contributes to EHEC growth within bovine small intestinal contents, deficiencies within this pathway are not as dramatic as those seen in galactose or mannose utilization pathways (64).…”

Section: Nutrient Signaling In Ehec-microbiota Interactions and Virulmentioning

confidence: 99%

“…This can perhaps be explained by observations concerning carbon-source preference in physiological settings of bovine small intestine contents (64) and a murine infection model (65). Though fucose utilization contributes to EHEC growth within bovine small intestinal contents, deficiencies within this pathway are not as dramatic as those seen in galactose or mannose utilization pathways (64). Analysis of mouse colonization of mutants of EDL933 or MG1655 demonstrates that fucose is used by both virulent and avirulent strains of E. coli, whereas galactose and mannose are primarily the forte of EHEC and dispensable for MG1655 (65).…”

Section: Nutrient Signaling In Ehec-microbiota Interactions and Virulmentioning

confidence: 99%

The Interplay between the Microbiota and Enterohemorrhagic Escherichia coli

Pifer

Sperandio

2014

Microbiol Spectr

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“…To address the above difficulties, the co-digestion of whey with animal manure in a CSTR digester has proven to be a solution because manure can provide the necessary nutrients and the buffer capacity to ensure the stability of the process [13,[27][28][29]. In addition, using biogas from the co-digestion of animal manure and suitable organic substrates is also a very attractive solution from a socio-economic point of view, when biogas externalities, including environmental, human and animal health benefits, are quantified and integrated in the overall economic benefit [30].…”

Section: Introductionmentioning

confidence: 99%

High-load anaerobic co-digestion of cheese whey and liquid fraction of dairy manure in a one-stage UASB process: Limits in co-substrates ratio and organic loading rate

Rico

Muñoz

Fernández

et al. 2015

Chemical Engineering Journal

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Please cite this article as: C. Rico, N. Muñoz, J. Fernández, J.L. Rico, High-load anaerobic co-digestion of cheese whey and liquid fraction of dairy manure in a one-stage UASB process: limits in co-substrates ratio and organic loading rate, Chemical Engineering Journal (2014), doi: http://dx. AbstractCheese whey is considered an important pollutant in dairy wastewaters and an environmental problem to solve. This study aimed to develop a treatment process that combines the advantages of co-digesting cheese whey with manure and the short hydraulic retention time of a high-load anaerobic treatment system by using liquid fractions of dairy manure as a co-substrate. The proposed co-digestion process consists of a one-stage UASB reactor with an external settler and effluent recycling for alkalinity supplementation. Under a constant hydraulic retention time of 2.2 days and increasing proportion of cheese whey in the feed, the system demonstrated stable operation up to a 75% cheese whey fraction in the feed, with an applied organic loading rate of 19.4 kg COD m -3 d -1 , obtaining a 94.7% COD removal and a volumetric methane production rate of 6.4 m 3 CH 4 m -3 d -1 . Critical biomass washout was experienced when the cheese whey fraction in the feed was 85%.Operation at a constant 60% cheese whey fraction in the feed mixture enabled stable operation under an organic loading rate of 28.7 kg COD m -3 d -1 and 1.3 days HRT, with 95.1% COD removal and a volumetric methane production rate of 9.5 m 3 CH 4 m -3 d -1 . This new high-load co-digestion method proposed is a promising solution for areas where cheese factories and intensive livestock farming are responsible for environmental pollution caused by unsuitable cheese whey and manure management practices.

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Innovative two-stage anaerobic process for effective codigestion of cheese whey and cattle manure

Cited by 57 publications

References 18 publications

Procesos biológicos para el tratamiento de lactosuero con producción de biogás e hidrógeno. Revisión bibliográfica

Procesos biológicos para el tratamiento de lactosuero con producción de biogás e hidrógeno. Revisión bibliográfica

The Interplay between the Microbiota and Enterohemorrhagic Escherichia coli

High-load anaerobic co-digestion of cheese whey and liquid fraction of dairy manure in a one-stage UASB process: Limits in co-substrates ratio and organic loading rate

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