The use of agricultural substrates to improve methane yield in anaerobic co-digestion with pig slurry: Effect of substrate type and inclusion level

Ferrer, P.; Cambra‐López, María; Cerisuelo, A.; Peñaranda, David S.; Moset, V.

doi:10.1016/j.wasman.2013.10.010

Cited by 49 publications

(20 citation statements)

References 39 publications

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“…The process enriches microbial consortia that are mainly composed of prokaryotic communities to convert mixtures of organic matter including agricultural, animal, or food waste into biogas with methane content of 50-70 % (Luo and Angelidaki 2013;Town et al 2014). Owing to the improvement of nutrient balance and buffer capacity, a variety of studies have demonstrated the enhancement effect of co-fermentation on the process performance (Ye et al 2013;Ferrer et al 2014). However, a lack of detailed understanding of the involved microbial communities has hindered the progress of current technique (Town et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Straw- and slurry-associated prokaryotic communities differ during co-fermentation of straw and swine manure

Rui

Pei

et al. 2014

Appl Microbiol Biotechnol

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Anaerobic co-fermentation of straw and manure is widely used for waste treatment and biogas production. However, the differences between the straw-and slurry-associated prokaryotic communities, their dynamic changes throughout the co-fermentation process, and their correlations with bioreactor performance are not fully understood. To address these questions, we investigated the prokaryotic community compositions and the dynamics of prokaryotes attached to the straw and in the slurry during co-fermentation of wheat straw and swine manure using pyrosequencing technique. The results showed that straw-and slurry-associated prokaryotes were different in their structure and function. Strawassociated prokaryotic communities were overrepresented by the phyla Spirochaetes and Fibrobacteres, while Synergistetes and Euryarchaeota were more abundant in the slurry. The straw-associated candidate class TG3, genera Fibrobacter, Bacteroides, Acetivibrio, Clostridium III, Papillibacter, Treponema, Sedimentibacter, and Lutispora may specialize in substrate hydrolysis. Propionate was the most abundant volatile fatty acid in the slurry, and it was probably degraded through syntrophic oxidation by the genera Pelotomaculum, Methanoculleus, and Methanosaeta. The protein-fermenting bacteria Aminobacterium and Cloacibacillus were much abundant in the slurry, indicating that proteins are important substrates in the co-fermentation. This study provided a better understanding of the anaerobic co-fermentation process that is driven by spatially differentiated microbiota.

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Section: Introductionmentioning

confidence: 99%

Straw- and slurry-associated prokaryotic communities differ during co-fermentation of straw and swine manure

Rui

Pei

et al. 2014

Appl Microbiol Biotechnol

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“…In addition, for FVW, co-digestion of these matrices together with livestock manure seems to be the best strategy to improve the AD process and biogas yield. Ferrer et al [131] yielded significant methane increases of 41%, 44%, 28% and 12% by co-digestion of horse manure with tomato, pepper, peach and persimmon, respectively.…”

Section: Co-digestionmentioning

confidence: 99%

Recent Updates on the Use of Agro-Food Waste for Biogas Production

et al. 2019

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The production of biogas from anaerobic digestion (AD) of residual agro-food biomasses represents an opportunity for alternative production of energy from renewable sources, according to the European Union legislation on renewable energy. This review provides an overview of the various aspects involved in this process with a focus on the best process conditions to be used for AD-based biogas production from residual agro-food biomasses. After a schematic description of the AD phases, the biogas plants with advanced technologies were described, pointing out the strengths and the weaknesses of the different digester technologies and indicating the main parameters and operating conditions to be monitored. Subsequently, a brief analysis of the factors affecting methane yield from manure AD was conducted and the AD of fruit and vegetables waste was examined. Particular attention was given to studies on co-digestion and pre-treatments as strategies to improve biogas yield. Finally, the selection of specific microorganisms and the genetic manipulation of anaerobic bacteria to speed up the AD process was illustrated. The open challenges concern the achievement of the highest renewable energy yields reusing agro-food waste with the lowest environmental impact and an increment of competitiveness of the agricultural sector in the perspective of a circular economy.

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“…Basically, in this system, an anaerobic horizontal lagoon is covered with a geomembrane made of PVC and animal manure is supplied continuously or after the daily cleaning period of the facilities. These low-cost reactors are very well adapted to the local scenario, since the swine manure used as feedstock presents low solids content (usually under 10%) and high biodegradability-the relation between volatile solids (VS) and total solids (TS) is higher than 70% [37,38]. Furthermore, they do not require sophisticated equipment and, on the other hand, they have simple operation procedures that are easily incorporated into the regular rural activities, when compared to large-scale biogas plants.…”

Section: Collective Production Of Biomethane Perspectives and Applicamentioning

confidence: 99%

“…Thus, each animal manure requires a specific type of anaerobic reactor due to the physical and chemical characteristics each presents (Table 2). Dairy 204 [41] 210 [42] Chicken 259 [41] 283 [43] Swine 323 [41] 293 [37] * BMP: biochemical methane potential expressed in mL of methane per gram of volatile solids of manure.…”

Section: Collective Production Of Biomethane Perspectives and Applicamentioning

confidence: 99%

Assessment of Collective Production of Biomethane from Livestock Waste for Urban Transportation Mobility in Brazil and the United States

et al. 2018

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Water, energy, and food are essential elements for human life, but face constant pressure resulting from economic development, climate change, and other global processes. Predictions of rapid economic growth, increasing population, and urbanization in the coming decades point to rapidly increasing demand for all three. In this context, improved management of the interactions among water, energy, and food requires an integrated "nexus" approach. This paper focuses on a specific nexus case: biogas generated from organic waste, a renewable source of energy created in livestock production, which can have water-quality impacts if waste enters water bodies. An innovative model is presented to make biogas and biomethane systems feasible, termed "biogas condominiums" (based on collective action given that small-and medium-scale farms on their own cannot afford the necessary investments). Based on the "farm to fuel" concept, animal waste and manure are converted into electrical and thermal energy, biofuel for transportation, and high-quality biofertilizer. This nexus approach provides multiple economic, environmental, and social benefits in both rural and urban areas, including reduction of ground and surface water pollution, decrease of fossil fuels dependence, and mitigation of greenhouse gases emissions, among others. The research finds that biogas condominiums create benefits for the whole biogas supply chain, which includes farmers, agroindustry, input providers, and local communities. The study estimated that biomethane potential in Brazil could substitute the country's entire diesel and gasoline imports as well as 44% of the total diesel demand. In the United States, biomethane potential can meet 16% of diesel demand and significantly diversify the energy matrix.

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The use of agricultural substrates to improve methane yield in anaerobic co-digestion with pig slurry: Effect of substrate type and inclusion level

Cited by 49 publications

References 39 publications

Straw- and slurry-associated prokaryotic communities differ during co-fermentation of straw and swine manure

Straw- and slurry-associated prokaryotic communities differ during co-fermentation of straw and swine manure

Recent Updates on the Use of Agro-Food Waste for Biogas Production

Assessment of Collective Production of Biomethane from Livestock Waste for Urban Transportation Mobility in Brazil and the United States

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