Early prediction of Biochemical Methane Potential through statistical and kinetic modelling of initial gas production

Strömberg, Sten; Nistor, Mihaela; Liu, Jing

doi:10.1016/j.biortech.2014.11.033

Cited by 69 publications

(74 citation statements)

References 23 publications

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“…4b. The methane production rate can be divided into typical three periods of Michaelis-Menten model (Stromberg et al, 2015), including zero order reaction at the 1st period and first order reaction in the 2nd period and lowspeed reaction in the 3rd period. The methane production rate achieved in the 1st period was the highest at 16.23 ± 3.51 NmlÁh…”

Section: Dynamic Threshold Determination Of the Biogas-ph Strategymentioning

confidence: 99%

“…For potato processing starch wastewater which was of low alkalinity and pH, pH was a sensitive alert of overload which leads to VFA accumulation and methanogenesis inhibition (Colin et al, 2007;Liu et al, 2014). On the contrary, underload of methanogenesis can be monitored by biogas production rate (Liu et al, 2014;Stromberg et al, 2015). In a summary, the combined monitoring of biogas flow rate in the gas phase and pH in the liquid phase may provide sensitive thresholds based digestion dynamic.…”

mentioning

confidence: 99%

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Biogas-pH automation control strategy for optimizing organic loading rate of anaerobic membrane bioreactor treating high COD wastewater

Liu

Sui

et al. 2016

Bioresource Technology

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Section: Dynamic Threshold Determination Of the Biogas-ph Strategymentioning

confidence: 99%

mentioning

confidence: 99%

Biogas-pH automation control strategy for optimizing organic loading rate of anaerobic membrane bioreactor treating high COD wastewater

Liu

Sui

et al. 2016

Bioresource Technology

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“…It is different from another SMA as kinetics coefficient k in the first-order kinetics or the Monod model of methane productions (Strömberg et al 2015), because the SMA as maximum specific rate has more links with the performance of the AnMBR under the biogas-pH control strategy (Yu et al 2016). The methane production speed was used as the slope for accumulated methane production.…”

Section: Methanogenesis Performance Testsmentioning

confidence: 99%

“…The TE supplementation concentrations were calculated on TE ion concentration in solution which was regarded as approximately bioavailable form (Vintiloiu et al 2013 To make results more comparable in these test groups, all effects of TEs on methanogenesis were calculated as percentage (Strömberg et al 2015); such as, effect of TE supplementation on methane production was calculated as Eq. (3):…”

Section: Experiments Of Te Supplementationmentioning

confidence: 99%

Multiple effects of trace elements on methanogenesis in a two-phase anaerobic membrane bioreactor treating starch wastewater

Wang

et al. 2016

Appl Microbiol Biotechnol

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For enhancing anaerobic membrane bioreactor (AnMBR) treating food processing wastewater due to speedlimited methanogenesis step, multiple effects of trace element (TE) supplementation on methanogenesis of a two-phase AnMBR were firstly investigated in batch tests. TE supplementation included individual element, combination and recovery of Fe, Ni, Co, Cu and Zn supplementation. Multiple effects of TE supplementation were highest stimulated by 22.4 ± 5.6 % (TE313) for chemical oxygen demand (COD) removal, 43.1 ± 12.5 % (TE303) for specific methanogenic activity (SMA) and 13.9 ± 3.7 % (TE405) for biomass growth, respectively, although only 7.5 ± 0.6 % (TE106) for methane production. Dosage of TEs played a critical role in methane production, COD removal and biomass growth of the AnMBR's methanogenesis. Low dosages of TE supplementation improved the COD removal and slightly stimulated the COD bioconverting to methane and biomass, but their specific methanation activities were inhibited in the initial rapid methanogenesis stage. Several methanation functional species were increased in abundance like Methanosarcina and Methanoculleus.

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“…Si bien no se propone establecer una duración fija para el ensayo, debido a que este parámetro depende del tipo de sustrato empleado, se recomienda considerar algunos indicadores reportados como el suspender el ensayo cuando la producción diaria de biogás es equivalente al 1% del volumen total producido hasta ese momento [6] o cuando la presión al interior del reactor no varía en más de 5 HPa, en caso de emplear el método manométrico. Recientemente, Strömberg et al [48] recomiendan acompañar el ensayo de modelos cinéticos que permiten predecir el valor del PBM final realizando un montaje de aproximadamente de 6 días. Los métodos de medición del CH 4 son otro de los factores que presentan una alta variabilidad en los ensayos, pues existen diferentes alternativas cuya selección depende de cada contexto; sin embargo, son pocos los estudios en los que se valide que no existen diferencias significativas entre el método empleado y que los resultados obtenidos sean comparables.…”

Section: Manométricounclassified

Perspectivas del ensayo de Potencial Bioquímico de Metano - PBM para el control del proceso de digestión anaerobia de residuos

Cleves¹,

Orobio²,

Lozada³

et al. 2016

rev.ion

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ResumenLa digestión anaerobia es un proceso biológico que permite lograr dos propósitos de manera simultánea, el tratamiento de residuos para el control de la contaminación ambiental y el aprovechamiento y valorización de los subproductos generados: el metano como fuente de energía renovable y el material digerido con potencial de aplicación agrícola. Con el fi n de determinar la capacidad de producción de metano, la biodegradabilidad anaerobia de un sustrato orgánico, seleccionar sustratos e inóculos potenciales y predecir el funcionamiento de digestores a escala real, se realizan ensayos a escala de laboratorio en reactores batch como el de Potencial Bioquímico de Metano (PBM). En este artículo se presenta una refl exión sobre diferentes aspectos relacionados con este importante ensayo, como la diversidad en la denominación del experimento, las diferentes modifi caciones en las condiciones operacionales y experimentales, el uso de diferentes unidades de medición, las ecuaciones de cálculo usadas para la cuantifi cación del metano, entre otros, que han dado lugar a diversas propuestas metodológicas las cuales difi eren en factores que condicionan su aplicación y la comparación de los resultados con otros estudios. Con esta refl exión se ratifi ca la utilidad de este ensayo pero también la necesidad de estandarizarlo, por lo cual es recomendable reportar las condiciones experimentales y operacionales y las unidades adecuadas, para evitar confusiones metodológicas y permitir una mayor reproducibilidad. Adicionalmente, se debe profundizar en el análisis metodológico de los diferentes métodos de medición y así obtener resultados comparables. Palabras clave: digestión anaerobia, biodegradabilidad anaerobia, potencial bioquímico de metano -PBM, residuo orgánico. AbstractAnaerobic digestion is a biological process that achieves two purposes simultaneously, waste treatment to control environmental pollution and the recovery and valorization of by-products generated: methane as a source of renewable energy and digestate for agricultural purposes. To determine the methane production capability, the anaerobic biodegradability of an organic substrate, the selection of potential substrates and inoculums and the performance prediction of full-scale digesters, bench scale procedures as Biochemical Methane Potential (BMP) test, are performed. This article shows a refl ection on different aspects related to this important test, such as the diversity in the experiment denomination, the different modifi cations in operational and experimental conditions, the different use of measurement units, 95Cita: Cárdenas-Cleves LM, Parra-Orobio BA, Torres-Lozada P; Vásquez-Franco CH. Perspectivas del ensayo de Potencial Bioquímico de Metano -PBM para el control del proceso de digestión anaerobia de residuos. rev.ion. 2016;29(1):95-108.

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Early prediction of Biochemical Methane Potential through statistical and kinetic modelling of initial gas production

Cited by 69 publications

References 23 publications

Biogas-pH automation control strategy for optimizing organic loading rate of anaerobic membrane bioreactor treating high COD wastewater

Biogas-pH automation control strategy for optimizing organic loading rate of anaerobic membrane bioreactor treating high COD wastewater

Multiple effects of trace elements on methanogenesis in a two-phase anaerobic membrane bioreactor treating starch wastewater

Perspectivas del ensayo de Potencial Bioquímico de Metano - PBM para el control del proceso de digestión anaerobia de residuos

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