Successful and stable operation of anaerobic thermophilic co-digestion of sun-dried sugar beet pulp and cow manure under short hydraulic retention time

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

doi:10.1016/j.chemosphere.2021.133484

Cited by 16 publications

(6 citation statements)

References 44 publications

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“…It's also worth noting that the different types of microorganisms involved in the anaerobic digestion process have different duplication times: acidogenic microorganisms take about 30 min to duplicate, acetogenic microorganisms take 1.5–4 days, and acetoclastic methanogens take 2–3 days to duplicate. Acidogenic bacteria have a short duplication time, according to ( Gomez-Quirega., 2022 ), which ensures that there are enough bacteria to break down organic substrates into organic acids. Because the fermentation conditions in the batch reaction were controlled and the system remained hermetically closed without interference from external sources, the microorganisms were also able to survive.…”

Section: Resultsmentioning

confidence: 99%

Biological acidification of pig manure using banana peel waste to improve the dissolution of particulate phosphorus: A critical step for maximum phosphorus recovery as struvite

Moyo

Simate²,

Mutsatsa³

2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Biological acidification of pig manure using banana peel waste to improve the dissolution of particulate phosphorus: A critical step for maximum phosphorus recovery as struvite

Moyo

Simate²,

Mutsatsa³

2022

Heliyon

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“…For example, Gomez-Quiroga et al [58] reported the thermophilic (55 • C) anaerobic co-digestion of sugar beet pulp and cow manure in semi-continuous reactors with anaerobic sludge as inoculum obtained from a wastewater treatment plant (WWTP), tested at ten different HRTs ranging from 3 to 30 days and OLR ranges of 2-24 gVS/L reactor •d. The results showed that the best performance (regarding stability, biogas production, and organic matter removal) was achieved at an HRT as short as 5 days (OLR of 12.47 gVS/L reactor •d) with a methane yield of 315 mL/gVS added .…”

Section: Thermophilic Anaerobic Digestionmentioning

confidence: 99%

Thermophilic Anaerobic Digestion: An Advancement towards Enhanced Biogas Production from Lignocellulosic Biomass

et al. 2023

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Thermophilic anaerobic digestion (TAD) technology has been adopted worldwide mainly due to it being a pathogen-free process in addition to the enhanced biogas yield and short hydraulic retention time (HRT). Taking the high metabolic rate of the thermophilic microbial community with highly efficient enzymatic systems into consideration, thermophiles are being widely explored as efficient inocula for lignocellulosic biomass (LCB) degradation and improved biomethane production. The advantages of TAD over mesophilic anaerobic digestion (MAD), including improved kinetics, efficient degradation of organic matter, and economic and environmental sustainability, make it one of the best strategies to be operated at moderately high temperatures. This review sheds light on the relevant role of thermophilic microorganisms as inocula in the anaerobic digestion of organic matter and factors affecting the overall process stability at high temperatures. Further, the discussion explains the strategies for enhancing the efficiency of thermophilic anaerobic digestion.

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“…It is important to consider that the degradation of lignocellulosic material is a slow process, and implementing a short hydraulic retention time (HRT) can result in the incomplete degradation of less resistant fibers. This can lead to a reduction in methane yield [60][61][62].…”

Section: Common Anaerobic Bioreactors and Operating Parameters For An...mentioning

confidence: 99%

Microbiological and Technological Insights on Anaerobic Digestion of Animal Manure: A Review

et al. 2023

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Anaerobic digestion of animal manure results in the production of renewable energy (biogas) and nutrient-rich biofertilizer. A further benefit of the technology is decreased greenhouse gas emissions that otherwise occur during manure storage. Since animal manure makes anaerobic digestion cost-efficient and further advance the technology for higher methane yields, it is of utmost importance to find strategies to improve bottlenecks such as the degradation of lignocellulose, e.g., in cattle manure, or to circumvent microbial inhibition by ammonia caused by the degradation of nitrogen compounds in, e.g., chicken, duck, or swine manure. This review summarizes the characteristics of different animal manures and provides insight into the underlying microbial mechanisms causing challenging problems with the anaerobic digestion process. A particular focus is put upon the retention time and organic loading rate in high-ammonia processes, which should be designed and optimized to support the microorganisms that tolerate high ammonia conditions, such as the syntrophic acetate oxidizing bacteria and the hydrogenotrophic methanogens. Furthermore, operating managements used to stabilize and increase the methane yield of animal manure, including supporting materials, the addition of trace elements, or the incorporation of ammonia removal technologies, are summarized. The review is finalized with a discussion of the research needed to outline conceivable operational methods for the anaerobic digestion process of animal manure to circumvent process instability and improve the process performance.

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Successful and stable operation of anaerobic thermophilic co-digestion of sun-dried sugar beet pulp and cow manure under short hydraulic retention time

Cited by 16 publications

References 44 publications

Biological acidification of pig manure using banana peel waste to improve the dissolution of particulate phosphorus: A critical step for maximum phosphorus recovery as struvite

Biological acidification of pig manure using banana peel waste to improve the dissolution of particulate phosphorus: A critical step for maximum phosphorus recovery as struvite

Thermophilic Anaerobic Digestion: An Advancement towards Enhanced Biogas Production from Lignocellulosic Biomass

Microbiological and Technological Insights on Anaerobic Digestion of Animal Manure: A Review

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