Anaerobic digestion of food waste through the operation of a mesophilic two-phase pilot scale digester – Assessment of variable loadings on system performance

Grimberg, Stefan J.; Hilderbrandt, Daniel; Kinnunen, Marta; Rogers, Shane

doi:10.1016/j.biortech.2014.09.001

Cited by 135 publications

(45 citation statements)

References 11 publications

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“…Industrial, 1992bIndustrial, , 2010 Para realizar la preparación del sustrato, se definió una concentración recomendada por Browne y Murphy (2014), menor al 10% de SV en base al contenido de sólidos totales, comúnmente utilizado para digestores CSTR. En este estudio se tomó la decisión de iniciar con 7% de SV por considerar que condiciones de baja carga pueden resultar en un crecimiento prolífico de bacterias que consumen ácido en el reactor de fermentación, lo que provoca un aumento en el pH (Grimberg et al, 2015) y que una sobrecarga orgánica provocaría una caída de pH e inhibición de la reacción (Latif et al, 2015Zhang et al, Información Tecnológica -Vol. 28 Nº 1 2017 2014), lo que se refleja en una producción de biogás mínima o nula.…”

Section: Caracterización Y Preparación Del Sustratounclassified

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Adaptación de Inóculos Durante el Arranque de la Digestión Anaerobia con Residuos Sólidos Orgánicos

Nakasima-López¹,

Taboada-González²,

Aguilar-Virgen³

et al. 2017

Inf. tecnol.

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ResumenEn este estudio se analizó la adaptación de dos inóculos, tomados en una industria láctea y una industria cervecera, en digestores anaeróbicos de mezcla completa (CSTR). El estudio es necesario porque en el uso de la tecnología anaeróbica, el arranque del sistema es crítico y lento, y para acelerar el tiempo de arranque de un digestor anaeróbico, se recurre a la inoculación. Se caracterizaron los residuos de alimentos y los inóculos, se alimentaron los digestores a una misma concentración y composición del residuo orgánico, y se analizó la reacción de degradación durante 150 días. La adaptación del inóculo dos (industria cervecera) al residuo orgánico fue más rápida y estable en el proceso de degradación, lo que dio un mayor rendimiento de biogás y concentración de metano (48.3%). Sistemas de digestión operando con un pH por debajo de 6.5 producen biogás con bajo contenido de metano. Palabras clave: biogás; CSTR; digestión anaeróbica; inóculos; arranque Inoculum Adaptation During Start-up of Anaerobic Digestion of Organic Solid Waste AbstractIn this study, the adaptation of two inoculums, taken from a dairy industry and a brewing industry, in continuous anaerobic flow stirred digesters (CSTR) was analyzed. The study is needed because in the use of anaerobic technology, the start-up of the system is critical and slow and inoculation is used to speed up the start-up time in anaerobic digesters. The food waste and inoculums were characterized, the digesters were fed at the same concentration and composition of organic waste, and degradation reaction was analyzed during 150 days. The adaptation inoculum two (brewing industry) to the organic residue was faster and more stable in the degradation process, resulting in a higher yield of biogas and methane concentration (48.3%). Digestion systems operating with a pH below 6.5 produce biogas with low methane content.

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Section: Caracterización Y Preparación Del Sustratounclassified

“…Este volumen fue estimado mediante la ecuación 1, considerando un volumen (Vt) de 5 L y un tiempo de retención hidráulica (TRH) de 15 días. La carga orgánica se determinó con la ecuación 2, indicada por Curry and Pillay (2012).…”

Section: Sistema De Digestiónunclassified

Adaptación de Inóculos Durante el Arranque de la Digestión Anaerobia con Residuos Sólidos Orgánicos

Nakasima-López¹,

Taboada-González²,

Aguilar-Virgen³

et al. 2017

Inf. tecnol.

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“…Hilderbrandt, M. Kinnunen and S. Rogers et al [10] Anaerobic digestion of food waste through the operation of a mesophilic two-phase pilot scale digesterAssessment of variable loadings on system performance Demonstrated that waste matter on a university field may be dependably biodegraded using a two-stage anaerobic digester system. Once comparison single and two-staged operation, each processes created similar quality effluent.…”

Section: S J Grimberg Dmentioning

confidence: 99%

Productivity Enhancement Using Kinetic Modeling of Bio-digestion Process-A Review

Baweja¹

2017

AJEE

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Bio-digesters convert organic waste (agricultural and food waste, animal or human manure, and other organic waste), into energy (in the form of biogas or electricity). An added benefit to bio-digestion is a leftover high-grade organic fertilizer. Models of the Bio digestion process do exist, but either relies on simple algebraic equations instead of biochemical reactions, or considers so many external parameters that they become overly complicated and require much input information and computation time. This work provides the review of features and limitations of different kinetic models of bio digestion process to enhancement on productivity.

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“…The last decade was characterized by great progress in development of MSW disposal, energy conversion methods, and management. The techniques and management system of the MSW had changed dramatically, shifting from oversimplified procedures, such as collecting unsorted wastes first and then disposing them in landfills, to integrated and sustainable methods that incorporate waste reduction practices, classification, material recycling techniques, biological and thermal processes for energy recovery, and landfill disposal (Liamsanguan and Gheewala, 2008;Lombardi et al, 2015;Grimberg et al, 2015;. Numerous studies have been carried out by researchers from different countries all over the world in various aspects of MSW, such as food waste (Yasin et al, 2013), technology innovation (Malkow, 2004;Tang et al, 2013), and life cycle assessment (LCA) .…”

Section: Introductionmentioning

confidence: 99%

Global trends of municipal solid waste research from 1997 to 2014 using bibliometric analysis

Chen

Jiang

Yang

et al. 2015

Journal of the Air & Waste Management Association

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Anaerobic digestion of food waste through the operation of a mesophilic two-phase pilot scale digester – Assessment of variable loadings on system performance

Cited by 135 publications

References 11 publications

Adaptación de Inóculos Durante el Arranque de la Digestión Anaerobia con Residuos Sólidos Orgánicos

Adaptación de Inóculos Durante el Arranque de la Digestión Anaerobia con Residuos Sólidos Orgánicos

Productivity Enhancement Using Kinetic Modeling of Bio-digestion Process-A Review

Global trends of municipal solid waste research from 1997 to 2014 using bibliometric analysis

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