Predicting Specific Biogas Yield of Maize-Validation of Different Model Approaches

Rath, J.; Heuwinkel, H.; Taube, F.; Herrmann, A.

doi:10.1007/s12155-014-9562-1

Cited by 13 publications

(14 citation statements)

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“…The average values of specific methane production (SMP) obtained from the mono-substrate digestion were 0.346 L CH 4 g -1 ODM for maize silage, and 0.326 L CH 4 g -1 ODM for red radicchio waste, both resulting in agreement with literature data 19,21,30 .…”

Section: Biodegradability Testssupporting

confidence: 87%

“…The use of maize silage in biomethanation processes is well known [19][20][21][22] and it is possible to state that, currently, biogas production is mainly based on the AD of this substrate 5 . Significant differences among the data can be noticed when comparing maize characterization from literature due to many factors, such as the plant variety, weather during cultivation, harvesting technology, and analytical methods 23 .…”

Section: Substrates Characteristics and Calculation Of The Theoreticamentioning

confidence: 99%

“…The onerous manufacturing process, required by this chicory to achieve its high qualitative and aesthetic level, results in a great amount of waste, around 30 % of rejected radicchio heads 28 , that can be subjected to anaerobic digestion. As regards the composition of radicchio waste, the initial fractionation of organic matter between carbohydrates, proteins, and lipids was obtained from the CREA (Consiglio per la Ricerca in agricoltura e l'analisi dell' Economia Agraria) tables 29 and, at a later stage, the total carbohydrates sharing was assumed from Wahid et al 30 Several methods exist in literature to estimate the theoretical methane potential of the organic substrates starting from the content of carbohydrates, proteins and lipids, with particular attention to lignocellulosic components 21,31,32 . In the present work, according to Angelidaki and Sanders 33 , the theoretical methane potential of the substrates components was calculated by Buswell's formula 34…”

Section: Substrates Characteristics and Calculation Of The Theoreticamentioning

confidence: 99%

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Assessing the Synergistic Effects of Co-digestion of Maize Silage and Red Chicory Waste

Cortesi¹

2018

Chem.Biochem.Eng.Q.

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Nowadays, the anaerobic digestion of organic wastes to produce renewable energy is a reality in many countries. Many feedstocks can be processed by anaerobic digestion to produce biogas, however, anaerobic digestion of single substrates can have drawbacks that could be eliminated by the anaerobic co-digestion of their mixtures (two or more). In this paper, the anaerobic co-digestion of maize silage and red chicory (radicchio) waste is presented. Several batch anaerobic biodegradability tests were performed in order to compare the methane production of the blend with those of the two substrates digested separately. The methane production was modelled by a first order kinetic model, focusing on the initial substrate solubilization. The specific methane productions of maize silage and red chicory as single substrates were 0.346 L CH 4 g-1 ODM and 0.326 L CH 4 g-1 ODM. The first solubilization rate constants (k sol) were 0.231 d-1 for the digestion of maize silage, and 0.389 d-1 for the radicchio waste. Two parameters representing the relative changes in specific methane production and solubilization rate were calculated in order to evaluate the synergistic effects due to co-digestion of studied substrates. Results showed that blending the two substrates enhanced the performances of the AD process, mainly with respect to biogas production kinetics with low increments in the ultimate methane potential.

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Section: Biodegradability Testssupporting

confidence: 87%

Section: Substrates Characteristics and Calculation Of The Theoreticamentioning

confidence: 99%

Section: Substrates Characteristics and Calculation Of The Theoreticamentioning

confidence: 99%

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Assessing the Synergistic Effects of Co-digestion of Maize Silage and Red Chicory Waste

Cortesi¹

2018

Chem.Biochem.Eng.Q.

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“…Some batch tests allow determination of the specific biomethane yield potential with an acceptable repeatability [8]. Another method is theoretical estimation of biogas yield calculated from the elemental composition using different stoichiometric [9,13] and empirical models developed for individual crops or estimates of SBY by multiple regression of various constituents [10,14,15]. The highest number of empirical models was developed for maize which is considered to be a crop with the highest biogas production potential [10,14,15].…”

Section: Introductionmentioning

confidence: 99%

“…Another method is theoretical estimation of biogas yield calculated from the elemental composition using different stoichiometric [9,13] and empirical models developed for individual crops or estimates of SBY by multiple regression of various constituents [10,14,15]. The highest number of empirical models was developed for maize which is considered to be a crop with the highest biogas production potential [10,14,15]. For a practical farmer who plans to establish a biogas plant, the ultimately decisive question is which crop or which variety provides the highest methane yield per hectare, as this has a decisive influence on the profitability of his biogas plant [8,16].…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition and Biogas Formation potential of Sida hermaphrodita and Silphium perfoliatum

et al. 2019

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Biogas production and use is one of the pillars of the EU strategy for fossil fuels replacement via renewable energies. In Poland, the most commonly used crop for biogas production is maize. There are many factors limiting the cultivation of this crop, which is why alternative plants are sought. The aim of the present paper was to assess the effect of establishing a plantation using seeds, seedlings, and various harvest dates on biogas production from Silphium perfoliatum L. (Silphium) and from two phenotypes of Sida hermaphrodita L. Rusby (Sida). Harvesting was conducted in the second (2017) and third year of crop growth (2018). These crops were harvested in June and at the beginning of October as a two-cut strategy. Additionally, Silphium was harvested in early autumn as a one-cut strategy. Specific biogas yield (SBY) and specific biomethane yield (SMY) were estimated using the modified Baserga method. The biogas yield per hectare (BY) was calculated. The crop species, method of establishing a plantation, as well as the date and the number of harvests had a significant effect on the content of the selected chemical components; however, significant differences in terms of SBY were not found for the two-cut strategy. In the case of Silphium, approximately 40% more BY was produced for the two-cut strategy compared to the one-cut strategy. The BY was found to be significantly affected by the biomass yield; markedly higher BY can be obtained from Silphium and the average amount obtained in one year was 8598 m3 ha-1 while 4759 m3 ha-1 was obtained from Sida.

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Renewable Energy from Wildflowers—Perennial Wild Plant Mixtures as a Social‐Ecologically Sustainable Biomass Supply System

Cossel

2020

Advanced Sustainable Systems

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A growing bioeconomy requires increasing amounts of biomass from residues, wastes, and industrial crops for bio‐based products and bioenergy. There is much discussion about how industrial crop cultivation could promote social–ecological outcomes such as environmental protection, biodiversity conservation, climate change adaptation, food security, greenhouse gas mitigation, and landscape appearance. In Germany, maize (Zea mays L.) is the main biogas substrate source, despite being associated with problems such as erosion, biodiversity losses, an increase in wild boar populations and lowered landscape diversity. The cultivation of perennial wild plant mixtures (WPM) addresses many of these problems. Despite being less developed than maize, WPM cultivation has received notable attention among scientists in Germany over the past decade. This is mainly because WPMs clearly outperform maize in social–ecological measures, despite their methane yield performance. This review summarizes and discusses the results of 12 years of research and practice with WPMs as a social‐ecologically more benign bioenergy cropping system.

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Predicting Specific Biogas Yield of Maize-Validation of Different Model Approaches

Cited by 13 publications

References 13 publications

Assessing the Synergistic Effects of Co-digestion of Maize Silage and Red Chicory Waste

Assessing the Synergistic Effects of Co-digestion of Maize Silage and Red Chicory Waste

Chemical Composition and Biogas Formation potential of Sida hermaphrodita and Silphium perfoliatum

Renewable Energy from Wildflowers—Perennial Wild Plant Mixtures as a Social‐Ecologically Sustainable Biomass Supply System

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