Biogas production from maize hybrids

Ošlaj, Matjaž; Mursec, B.; Vindis, P.

doi:10.1016/j.biombioe.2010.04.016

Cited by 115 publications

(66 citation statements)

References 12 publications

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“…The per hectare methane production recorded in this study has resulted significantly lower values than the one reported for maize (7000-8000 nm 3 ha -1 ) by other authors (Amon et al, 2007;Oslaj et al, 2010). These differences are probably due to higher per hectare dry matter yields reported for maize as compared to grasses.…”

Section: Discussioncontrasting

confidence: 53%

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Grasses and Legumes in Mixture: An Energy Intercropping System Intended for Anaerobic Digestion

Gatta

Gagliardi

Soldo³

et al. 2013

Italian Journal of Agronomy

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Batch testing of biomethanization was conducted on organic matrices from a mixture of grasses (triticale and barley) and legumes (field bean -Vicia faba L. var. minor). These tests were performed in mesophylic conditions (35°C) on previously chopped and ensiled biomass.The three crops have been cultivated in Southern Italy (Puglia region), both as single-crops and intercropping between triticale or barley and field bean, in different mixture combinations, during the season 2009-2010. Emphasis was placed on the determination of the chemical composition of feedstock from the three single species and their different intercropping ratios, mowed at two subsequent stages (milk and dough development of grasses), also assessing their consequent biogas and methane potential yields after silage. Seven overall treatments have been compared: the three species in monoculture (triticale, barley and field bean, respectively); two mixtures between triticale and field bean (with triticale at 70 and 50%, respectively); two mixtures between barley and field bean (again with barley at 70 and 50%, respectively). Immediately after cutting and for the next 90 days, biomass samples were closed into plastic mini-silos, each having a 5-L capacity, in order to simulate the silage process. Thereafter, the batch testing was performed and biogas and methane production have been determined, with respect to the main chemical characteristics of the chopped and ensiled biomass samples, able to affect biogas and methane yield. Considering the single-crop treatments the highest biogas per hectare production has been found with respect to triticale (8737.1 nm 3 ha -1 ) and barley (8837.6 nm 3 ha -1 ), at the first and second harvesting stage, respectively. Concerning grass-legume intercropping, the highest biogas yield (8635.0 nm 3 ha -1 ) was observed with reference to the 70:30 mixing ratio, specifically on barley mowed at the milk development stage. The methane content in the biogas ranged from 61.1% (on a 50:50 mixing ratio of barley at the milk stage) to 53.7% (on a barley monoculture at the dough stage).

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Section: Discussioncontrasting

confidence: 53%

“…The specific biogas yield, instead, was not in accordance with the data reported by Oslaj et al (2010) for corn hybrids. This experiment was made in 2007 and investigated the amount of biogas and methane from different maize hybrids in several grain maturity stages.…”

Section: Discussioncontrasting

confidence: 47%

Grasses and Legumes in Mixture: An Energy Intercropping System Intended for Anaerobic Digestion

Gatta

Gagliardi

Soldo³

et al. 2013

Italian Journal of Agronomy

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“…The obtained values of biogas volume were converted to the normal conditions (1 013 hPa, 273 K) (38414-8, 1985;Oslaj et al, 2010) as indicated by the Eq. (3):…”

Section: Methodsmentioning

confidence: 99%

Development of optimum substrate compositions in the methane fermentation process

Lalak¹,

Kasprzycka²,

Paprota³

et al. 2015

International Agrophysics

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The aim of the study was to assess the potential of organic wastes from the agriculture and food industry as co-substrate for biogas production, on the basis of physical and chemical parameters analysis and biogas yield in the process of methane fermentation. The experimental material consisted of carrot pomace, kale by-products and maize silage. Methane fermentation was conducted in bioreactors equipped with an automatic control and measurement system. The study indicated correct physicochemical properties in terms of high content of dry organic matter and also correct C/N ratio. That was reflected in high biogas yields which amounted to, respectively, 558 N dm3kg−1VS−1for carrot pomace and kale by-products, and 526 N dm3kg−1VS−1for maize silage. The study showed that the intensity of biogas production was varied and depended on the composition of fermented mixtures. Methane fermentation of organic waste mixtures significantly increased the amount of biogas efficiency compared to the fermentation of individual substrates. The successful run of the experiment indicates that a mixture composed of carrot pomace and kale by-products is a good substrate for the production of biogas.

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“…Methanogens belong to the strictly anaerobic microorganism group called archaea: About 19 genera and more than 50 species of methanogens have been identified so far [40]. The final gas mixture, biogas, can contain about 45 -75% CH 4 and 20 -50% CO 2 [41, 42, [41][42][43].…”

Section: Different Phases Of Admentioning

confidence: 99%

Oxygen Effects in Anaerobic Digestion – A Review

Botheju¹,

Bakke²

2011

TOWMJ

145

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This article reviews the experimental and theoretical studies conducted on the possible effects of oxygen in biogas generating anaerobic digesters. The interactions of oxygen with various biochemical processes associated with anaerobic digestion are discussed together with other relevant aspects. The conventional perception of oxygen being merely toxic in anaerobic digestion (AD) is refuted. Digesters can withstand significant levels of oxygenation without drastic negative impacts. Limited quantities of oxygen can even lead to improved AD reactor performance under certain operating conditions. Co-existence of anaerobic and aerobic cultures in a single bioreactor environment has been demonstrated. It is shown that the partial aeration assisted AD can serve as a beneficial treatment strategy for simultaneous waste treatment and energy generation, for a multitude of organic waste categories.

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Biogas production from maize hybrids

Cited by 115 publications

References 12 publications

Grasses and Legumes in Mixture: An Energy Intercropping System Intended for Anaerobic Digestion

Grasses and Legumes in Mixture: An Energy Intercropping System Intended for Anaerobic Digestion

Development of optimum substrate compositions in the methane fermentation process

Oxygen Effects in Anaerobic Digestion – A Review

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