Biogas production of food waste with in-situ sulfide control under high organic loading in two-stage anaerobic digestion process: Strategy and response of microbial community

Yang, Shen; Luo, Fan; Yan, Jia; Zhang, Tianlang; Xian, Ziyan; Huang, Weiyao; Zhang, Hongguo; Cao, Yong; Huang, Lei

doi:10.1016/j.biortech.2023.128712

Cited by 32 publications

(7 citation statements)

References 44 publications

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“…This comparison showed that the two-stage system could improve the performance of methane production by enhancing the higher yield and concentration. In line with the previous reports ( Chu et al, 2020 ; Yang et al, 2023 ), the two-stage AD could give the specific optimum conditions for both hydrogen-producing bacteria and methanogens in different containments due to favorable conditions for hydrolytic-acidogenic bacteria, methanogenesis may be suppressed, particularly at low pH levels. In certain cases, the methane concentration obtained exceeded the levels in this study when co-digesting NG with elephant ( Rangseesuriyachai et al, 2023 ) and chicken manure ( Yodthongdee et al, 2019 ).…”

Section: Resultssupporting

confidence: 89%

“…Nevertheless, the methane production yield still surpassed those of the two feedstocks. Recent studies involving food waste co-digestion with a variety of wastes exhibited a lower methane production yield than this study ( Liu X. et al, 2022 ; Kosheleva et al, 2023 ; Lee et al, 2023 ; Yang et al, 2023 ). Alkaline pretreatment of food waste used for co-digestion with sewage sludge in two-stage anaerobic digestion ( Lee et al, 2023 ) resulted in lower methane yield production.…”

Section: Resultscontrasting

confidence: 68%

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Co-digestion approach for enhancement of biogas production by mixture of untreated napier grass and industrial hydrolyzed food waste

Kriswantoro,

Pan,

Chu

2024

Front. Bioeng. Biotechnol.

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The co-digestion of untreated Napier grass (NG) and industrial hydrolyzed food waste (FW) was carried out in the batch reactor to investigate the effect of substrate ratios on biogas production performance. Two-stage anaerobic digestion was performed with an initial substrate concentration of 5 g VSadded/L and a Food to Microorganism Ratio (F/M) of 0.84. The 1:1 ratio of the NG and FW showed the optimum performances on biogas production yield with a value of 1,161.33 mL/g VSadded after 60 days of digestion. This was followed by the data on methane yield and concentration were 614.37 mL/g VSadded and 67.29%, respectively. The results were similar to the simulation results using a modified Gompertz model, which had a higher potential methane production and maximum production rate, as well as a shorter lag phase and a coefficient of determination of 0.9945. These findings indicated that the co-digestion of Napier grass and hydrolyzed food waste can enhance biogas production in two-stage anaerobic digestion.

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Section: Resultssupporting

confidence: 89%

Section: Resultscontrasting

confidence: 68%

Co-digestion approach for enhancement of biogas production by mixture of untreated napier grass and industrial hydrolyzed food waste

Kriswantoro,

Pan,

Chu

2024

Front. Bioeng. Biotechnol.

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“…However, it could also reduce biogas quality and show toxicity to various microbial groups in the AD process when degraded to H 2 S or other sulfur compounds [74]. Two-stage AD systems showed a capacity for simultaneous biogas production and sulfur removal [75,76].…”

Section: Inhibitorsmentioning

confidence: 99%

Critical Review on Two-Stage Anaerobic Digestion with H2 and CH4 Production from Various Wastes

Zheng,

2024

Water

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Anaerobic digestion (AD) is a promising method for resource recovery from various wastes. Compared to the conventional single-stage AD process, a two-stage AD process with separate H2 and CH4 production provides higher energy recovery efficiency and enhanced operation stability. The stage separation makes it possible to apply optimal conditions for different functional microorganisms in their respective stages. This review elaborates the mechanisms of the two-stage AD process and evaluates recent research trends on this topic. A comprehensive comparison between single- and two-stage AD processes is made from the perspective of biogas production, organics degradation, energy recovery, and operation stability. The main influence factors on the two-stage AD process are discussed, including substrates, inoculum, and operation parameters, such as pH, temperature, etc. Upgrading technologies for the two-stage AD process are assessed. The microbial communities in the two-stage AD process for treating different substrates and the influence factors on microbial systems are also summarized. Furthermore, future research opportunities for enhancing the application of this technology are highlighted.

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“…AD of slowly digestible substrates (e.g., cellulosic materials) may lead to poor methane production, therefore these digesters are typically operated at increased OLRs with feedstocks containing high TS content as a way to address this issue [71]. Nevertheless, if the OLR is raised beyond a specific level, it may result in significant VFA accumulation [85] via rapid conversion of organic matter through fermentation [22], thus inhibiting methanogenesis [86]. This results in the disruption of the balance between syntrophic acetogenic bacteria and methanogens as it affects the hydrogen partial pressure in the system [71].…”

Section: Hrt and Olr In Anaerobic Digestion Systemsmentioning

confidence: 99%

Microbial Dynamics in Anaerobic Digestion: A Review of Operational and Environmental Factors Affecting Microbiome Composition and Function

Kostopoulou,

Chioti,

Tsioni

et al. 2023

Preprint

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Anaerobic digestion has emerged as an increasingly popular method for the effective management of organic waste and wastewater with the potential to generate renewable energy. However, efficient digestion depends heavily on the complex and diverse microbial communities mediating this process. This review paper delves into the complex microbiome that exists within anaerobic digestion digesters, playing a critical role in the efficient and sustainable conversion of organic waste into biogas. Its primary focus falls within the scope of how various operational and environmental factors, including temperature, pH, hydraulic retention time, substrate loading rates, and the presence of inhibitory compounds, can substantially impact the microbiome of these systems. Through an extensive analysis of the existing literature, the microbial ecology of anaerobic digestion, including the composition and function of the microbial community, their interactions, and responses to different stressors, are evaluated. By offering critical insights into the distribution patterns of active microbial populations upon alterations in various process parameters, a better understanding of the microbial dynamics within these systems is provided, enhancing their efficiency. Overall, this paper emphasizes the importance of unraveling the microbial evolution within AD reactors to optimize biogas production and sustainable waste management and proposes future perspectives in this direction.

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Biogas production of food waste with in-situ sulfide control under high organic loading in two-stage anaerobic digestion process: Strategy and response of microbial community

Cited by 32 publications

References 44 publications

Co-digestion approach for enhancement of biogas production by mixture of untreated napier grass and industrial hydrolyzed food waste

Co-digestion approach for enhancement of biogas production by mixture of untreated napier grass and industrial hydrolyzed food waste

Critical Review on Two-Stage Anaerobic Digestion with H2 and CH4 Production from Various Wastes

Microbial Dynamics in Anaerobic Digestion: A Review of Operational and Environmental Factors Affecting Microbiome Composition and Function

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