Application of Anaerobic Digestion Model No. 1 for describing anaerobic digestion of grass, maize, green weed silage, and industrial glycerine

Biernacki, Piotr; Steinigeweg, Sven; Borchert, Axel; Uhlenhut, Frank

doi:10.1016/j.biortech.2012.09.128

Cited by 61 publications

(42 citation statements)

References 17 publications

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“…These low values were selected to reduce the reaction times 22,32 allowing to maintain a biomass with good activity 22 . …”

Section: Experimental Set-upmentioning

confidence: 99%

“…The anaerobic digestion of a complex organic substrate is a non-linear bioprocess assumed to pass several stages, starting from complex organic material to monomers to gaseous compounds 32 . The extracellular breakdown of complex organic substrates to soluble substrates is expressed as disintegration and hydrolysis phase 32 .…”

Section: Disintegration and Hydrolysis Phasementioning

confidence: 99%

“…The extracellular breakdown of complex organic substrates to soluble substrates is expressed as disintegration and hydrolysis phase 32 . Due to the large fraction of organic matter that must be solubilized before its methanization, many studies have concluded that the disintegration/hydrolysis (solubilisation) phase is the rate-limiting step of the overall sewage sludge AD process 34 .…”

Section: Disintegration and Hydrolysis Phasementioning

confidence: 99%

See 2 more Smart Citations

Biovalorization of Brewery Waste by Applying Anaerobic Digestion

Vitanza

Cortesi

Gallo

et al. 2016

Chem.Biochem.Eng.Q.

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In the food industry, the brewing sector holds a strategic economic position: in the year 2013, the beer production of the EU-28 was equal to 383,553,000 hL. The brewing process includes chemical and biochemical reactions and solid-liquid separations, involving the generation of various residues and by-products, among which the major two fractions are brewer's spent grain (BSG), and exhausted brewery yeast (BY). Although until today their main use has been for animal feed, in recent years, several studies have investigated the application of anaerobic digestion in order to revalue the brewery wastes.In this work, specific methane production (SMP) and first-order solubilisation (disintegration + hydrolysis) rates (k sol ) for BSG and BY were evaluated. Biomethanation tests were performed in 5-L fed-batch stirred reactors at several substrate/inoculum ratios.

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“…These low values were selected to reduce the reaction times 22,32 allowing to maintain a biomass with good activity 22 . …”

Section: Experimental Set-upmentioning

confidence: 99%

Section: Disintegration and Hydrolysis Phasementioning

confidence: 99%

Section: Disintegration and Hydrolysis Phasementioning

confidence: 99%

See 1 more Smart Citation

Biovalorization of Brewery Waste by Applying Anaerobic Digestion

Vitanza

Cortesi

Gallo

et al. 2016

Chem.Biochem.Eng.Q.

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“…Plant materials generally exhibit lower gas production efficiency in comparison to biodegradable polyesters. Usually a biogas production from plants is in a range of 220-550 ml/g of dry weight [21,22], thus the addition of flax fiber should reduce the biogas yield from the composite.…”

Section: Anaerobic Biodegradationmentioning

confidence: 99%

Anaerobic Biodegradation of Polymer Composites Filled with Natural Fibers

et al. 2014

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Polymer composites with natural fibers prepared by melt blending were investigated. Synthetic and natural macromolecules were used, including poly(lactic acid), polyhydroxybutyrate-co-polyhydroxyvalerate and low density polyethylene. These polymers were filled with flax fibers. Mechanical properties of the composites, biogas production and mass loss under anaerobic digestion have been presented. It has been shown that the mechanical properties sustain after 28 days of biodegradation. Such materials can be found in applications as packaging, as well as in medicine as polymeric scaffolds, and drug delivery systems etc.

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“…Due to the increasing number of biogas plants in many parts of the world, a continual improvement in technology and increased understanding of the whole process of anaerobic digestion is necessary. When the behavior of the process can be predicted, the production can be optimized and problems such as process failures, reactor break down and low biogas yields can be prevented [5]. Biofuels research, standard procedures and mathematical modeling can assist in increasing and improving yields, therefore is of utmost importance to industry [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Lactate and Starter Inoculum on Biogas Production from Fresh Maize and Maize Silage

Satpathy¹,

Steinigeweg²,

Siefert³

et al. 2017

AiM

Self Cite

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Lactate is a key intermediate during anaerobic digestion of carbohydrates; however, it fails to receive significant consideration in biogas plants. We examined the influence of lactic acid on biogas production. Two commonly used feeds, fresh maize and maize silage, were selected as substrates due to their difference in lactic acid contents. Additionally, inocula from an agriculture-based biogas plant, a waste water treatment plant and a standardised laboratory reactor were selected to investigate the impact of starter culture on the process. Experiments demonstrated increased total biogas yield of up to 45% in the lactate-rich maize silage over the lactate-devoid fresh maize, but only in cases where the starting inocula had been previously exposed to lactic acid. Our findings suggest lactic acid is a significant intermediate in biogas production and merits consideration. Additionally, the ability of the starter inoculum to utilize lactic acid is an important factor in process optimization and enhanced biogas production.

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Application of Anaerobic Digestion Model No. 1 for describing anaerobic digestion of grass, maize, green weed silage, and industrial glycerine

Cited by 61 publications

References 17 publications

Biovalorization of Brewery Waste by Applying Anaerobic Digestion

Biovalorization of Brewery Waste by Applying Anaerobic Digestion

Anaerobic Biodegradation of Polymer Composites Filled with Natural Fibers

Effect of Lactate and Starter Inoculum on Biogas Production from Fresh Maize and Maize Silage

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