Quantifying physical structure changes and non-uniform water flow in cattle manure during dry anaerobic digestion process at lab scale: Implication for biogas production

André, L.; Durante, M.; Pauss, André; Lespinard, O.; Ribeiro, Thierry; Lamy, Edvina

doi:10.1016/j.biortech.2015.06.022

Cited by 48 publications

(39 citation statements)

References 26 publications

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“…Leachate recirculation is a commonly used method to enhance mass transfer in SS-AD by redistributing substrates, nutrients, and microorganisms (André et al, 2015). However, leachate recirculation did not obtain significant increases of biogas production in one SS-AD study (Zhu et al, 2014).…”

Section: Partial Premixing/ Leachate Recirculationmentioning

confidence: 95%

“…Another study found that leachate recirculation only improved methane yield at the early stage of AD, but no effect on methane production rate after 19 days. The authors attributed this result to the physical structure of the manure during the AD process, which reduced the liquid percolation through the reactor (André et al, 2015). Currently, experimental study and optimization of leachate recirculation in SS-AD are relatively limited.…”

Section: Partial Premixing/ Leachate Recirculationmentioning

confidence: 99%

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Solid-state anaerobic digestion of lignocellulosic biomass: Recent progress and perspectives

2016

Bioresource Technology

224

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Solid-state anaerobic digestion (SS-AD), which has gained popularity in the past decade as an environmentally friendly and cost-effective technology for extracting energy from various types of lignocellulosic biomass, is reviewed in this paper. According to data of biomass and methane yields of lignocellulosic feedstocks, crop residues have the highest methane production potential in the U.S., followed by the organic fraction of municipal solid waste (OFMSW), forestry waste, and energy crops. Methane yield and process stability of SS-AD can be improved by different strategies, such as co-digestion with other organic wastes, pretreatment of lignocellulosic biomass, and optimization of operating parameters. Different models for SS-AD have been developed, and insights into SS-AD processes have been obtained via microbial community analysis, microscope imaging, and tracer techniques. Future research and development in SS-AD, including feedstock identification and co-digestion, feedstock storage and pretreatment, SS-AD reactor development, digestate treatment, and value-added production, are recommended.

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Section: Partial Premixing/ Leachate Recirculationmentioning

confidence: 95%

Section: Partial Premixing/ Leachate Recirculationmentioning

confidence: 99%

Solid-state anaerobic digestion of lignocellulosic biomass: Recent progress and perspectives

2016

Bioresource Technology

224

View full text Add to dashboard Cite

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“…For immersion, the rice straw-filled mesh bag was immersed in the leachate for the designated contact time. Leachate recirculation by percolation might cause nonuniform leachate flow because of the heterogeneous structure of the medium [52], while it is expected that most of the substrate in the bag could be in contact with the leachate by immersion. The methane yield of the immersion mixture of rice straw and solid digestate into leachate was higher than that of percolation of leachate.…”

Section: New Efforts For Operating Dry Anaerobic Digestion Processmentioning

confidence: 99%

Dry Anaerobic Digestion for Agricultural Waste Recycling

Riya¹,

Meng²,

Wang³

et al. 2021

Biogas - Recent Advances and Integrated Approaches

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For sustainable agriculture, it is important to manage agricultural wastes, such as crop residues and livestock wastes. Anaerobic digestion has been gathering the attention to recycle these wastes into renewable energy (biogas) and fertilizer (soil amendment) (digestate). Dry anaerobic digestion is defined as digestion at higher than 20% of total solid (TS) content in the reactor, which is suitable for wastes with high TS content, such as agricultural wastes. In this chapter, we reviewed recent advances in biogas production and use of digestate as soil amendment from dry anaerobic digestion of agricultural wastes. It has been found that ammonia concentration, feed/inoculum (F/I) ratio, and TS content are important parameters for operation of dry anaerobic digestion. Several operation technologies have been in operation, while new operation strategies have been developed. Application of solid digestate into the soil is beneficial to increase soil properties; however it should be carefully operated because it has risks of nitrate leaching and soil pathogens.

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“…With the dry anaerobic batch digestion style, the physicochemical properties of the material become significant as it must have a porous permeable structure that permits suitable percolation [8]. Several laboratory methodologies to determine physical material characteristics have been reported for soil, compost, and municipal solid waste [9][10][11][12]. However, currently there are no defined methods available to evaluate the feedstock suitability for dry anaerobic batch digestion.…”

Section: Introductionmentioning

confidence: 99%

Feedstock Characterization and Suitability Assessment for Dry Anaerobic Batch Digestion

2016

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Substrate characterization experiments were carried out on different feedstocks and structure materials considered appropriate for use in dry anaerobic batch digestion systems. Physical material characteristics tested were bulk and saturated bulk density, compressed density, permeability, compactibility, water holding capacity, maximum water content, and volatile solid content. Oedometer tests were conducted on prepared feedstock/structure material mixtures targeting a high permeability under compression. Porous materials such as straw and woodchips were tested to determine if they enhance material mixture properties to yield superior permeability and allow percolation.

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Quantifying physical structure changes and non-uniform water flow in cattle manure during dry anaerobic digestion process at lab scale: Implication for biogas production

Cited by 48 publications

References 26 publications

Solid-state anaerobic digestion of lignocellulosic biomass: Recent progress and perspectives

Solid-state anaerobic digestion of lignocellulosic biomass: Recent progress and perspectives

Dry Anaerobic Digestion for Agricultural Waste Recycling

Feedstock Characterization and Suitability Assessment for Dry Anaerobic Batch Digestion

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