Influence of total solids concentration on the anaerobic co-digestion of sugar beet by-products and livestock manures

Aboudi, Kaoutar; Álvarez-Gallego, Carlos José; Romero, L.I.

doi:10.1016/j.scitotenv.2017.01.178

Cited by 41 publications

(19 citation statements)

References 32 publications

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“…The digestion rate enhanced with the increase in contents of co-waste without causing any loss in generation potential. [33] When sugar beet was co digested with cattle manures with 8% and 5% of total solids, the former with higher concentration exhibited effective results with specific CH 4 production of 464 ml/g. But above 8%, its rheological characteristics were not better and so it was not studied.…”

Section: Biomethanationmentioning

confidence: 98%

A Comprehensive analysis on Bioenergy Yield via Anaerobic Disintegration of Organic Matter

Diaz¹

2017

SIJST

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Solid and liquid waste disposal by anaerobic digestion is feasible enough to produce biofuel by reducing volume of sludge. The rate of waste conversion to biogas in activated sludge process has been increasing as it reduces negative environmental effect and stabilizes ecological balance. A brief overview of substrates that is suitable for biogas yield has been presented, where it is clear that the feedstock with higher total solid concentration results to increase biofuel generation potential. It intends to provide various anaerobic disintegration techniques that emphasized on bioenergy development. Further, the recommendations over future scope have also been dealt with.

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Section: Biomethanationmentioning

confidence: 98%

A Comprehensive analysis on Bioenergy Yield via Anaerobic Disintegration of Organic Matter

Diaz¹

2017

SIJST

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“…Anaerobic co‐digestion of different organic residues has been widely investigated with a view to enhancing the performance of anaerobic digestion regarding biogas production and total solids reduction . Usually, during a co‐digestion process one main basic feedstock (e.g., animal manure or sewage sludge) is mixed with a smaller amount of a second one (e.g., crop residues, silage, and food wastes) to feed the digester . Only a few studies have examined the co‐digestion of multiple feedstocks (Valenti et al ., unpublished) and demonstrated successful biogas production from multiple organic residues.…”

Section: State Of the Artmentioning

confidence: 99%

A GIS‐based spatial index of feedstock‐mixture availability for anaerobic co‐digestion of Mediterranean by‐products and agricultural residues

Valenti

Liao

Porto

2018

Biofuels Bioprod Bioref

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Biogas obtained from the anaerobic digestion of biomasses has increasingly been considered a feasible alternative to energy production from fossil fuel because of the possible advantages derived from both the reduction of the environmental burden and the reuse of by‐products and agricultural residues. Italy is the third largest biogas producer in the world after China and Germany, but the biogas sector in southern Italy, especially in Sicily, is still developing. The objective of this study was to contribute to the sustainable development of the biogas sector in Sicily by developing a method for the localization of geographical areas suitable for biogas production. First, a feedstock mixture found in previous research studies (which investigated several mixes of main agricultural residues and by‐products available in Sicily for the enhancement of biogas production in terms of methane content) was used to evaluate each feedstock territorial distribution in a study area. Then a GIS‐based model for the computation of a spatial index of feedstock‐mixture availability, ifm_a , was developed. The computed spatial index was applied on a GIS map to investigate the availability of the feedstock mixture in the area under study. The results of the territorial analyses obtained by applying the index showed the geographical areas suitable for the development of new biogas plants. The results of this study could be helpful in reducing the significant transport costs of each feedstock as well as the environmental impact of biogas production. In this regard, the results are in line with the policy priorities of the Europe 2020 strategy, which aims to valorize by‐products and agricultural residues through their reuse. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…This substrate was collected from the sugar production company "Azucarera" (AB-sugar group) located in southern of Spain. The raw SBB was used at a total solid content of 8% by rehydrating the pellets with deionized water 24 hours before of the daily feeding (once a day) [9].…”

Section: A Substratementioning

confidence: 99%

“…Temperature was continuously monitored by an inner temperature sensor and controlled by a PID (Proportional-Integral-Derivative) control system. Each digester had an independent motor of agitation and a stirring blade [10].…”

Section: B Semi-continuous Digesters Start-up Proceduresmentioning

confidence: 99%

Effect of Temperature on Biohydrogen and Biomethane Productions by Anaerobic Digestion of Sugar Beet by-Products

Aboudi¹,

Gómez-Quiroga²,

Álvarez-Gallego³

et al. 2018

IJESD

Self Cite

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Abstract-This work analyzes the effect of temperature on the anaerobic digestion of sugar beet by-products for both biohydrogen and biomethane production. The findings demonstrate that the anaerobic process was significantly affected by the increase in temperature from mesophilic to thermophilic or hyper-thermophilic conditions. Therefore, it was found that the mesophilic temperature was more suitable for the anaerobic digestion of sugar beet by-products, using either the raw feedstock or the pretreated feedstock at higher temperatures. The specific production of biohydrogen from thermophilic acidogenic digester was 1.7 fold higher than that obtained from the hyper-thermophilic one. Moreover, when raw feedstock was used in single stage digesters, a methane production rate of 0.55 LCH4/Lr*d was obtained from the mesophilic digester, which was 45% higher than that of the thermophilic one. It has been observed that the increase in temperature led to a high accumulation of volatile and long chain fatty acids, inhibiting and slowing down the anaerobic process.

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Influence of total solids concentration on the anaerobic co-digestion of sugar beet by-products and livestock manures

Cited by 41 publications

References 32 publications

A Comprehensive analysis on Bioenergy Yield via Anaerobic Disintegration of Organic Matter

A Comprehensive analysis on Bioenergy Yield via Anaerobic Disintegration of Organic Matter

A GIS‐based spatial index of feedstock‐mixture availability for anaerobic co‐digestion of Mediterranean by‐products and agricultural residues

Effect of Temperature on Biohydrogen and Biomethane Productions by Anaerobic Digestion of Sugar Beet by-Products

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