Inhibitory mechanisms on dry anaerobic digestion: Ammonia, hydrogen and propionic acid relationship

Rocamora, Ildefonso; Wagland, Stuart T.; Hassard, Francis; Villa, Raffaella; Peces, Miriam; Simpson, Edmon W.; Fernández, Oliver; Fernández, Y. Bajón

doi:10.1016/j.wasman.2023.02.009

Cited by 30 publications

(2 citation statements)

References 67 publications

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“…In contrast, the abundance of Petrimonas , which degrades a variety of proteins and polysaccharides, and Bacillus , which degrades polycyclic aromatic hydrocarbons and total petroleum hydrocarbon pollutants, increased from 0.2% and 2.4% to 1.1% and 6.5%, respectively. , The effect of AITC on archaea was also evident and varied according to archaeal species. The abundance of Methanosarcina , the versatile methanogens capable of producing methane via all three pathways (acetoclastic, hydrogenotrophic, and methylotrophic pathways), decreased from 19.3% to 5.8%, while the abundance of hydrogenophilic methanogens Methanoculleus and Methanobacterium increased from 8.2% and 17.5% to 21.5% and 34.4%, respectively. , This suggested that AITC enabled the conversion of other methanogenic pathways to hydrogenotrophic methanogenesis . The acclimatization of the microbial community to food additives in anaerobic digestion processes may improve the degradation of food additives and decreases the level of inhibition through the development of specialized microbial communities.…”

Section: Responses Of the Microbial Community To Food Additives In Fo...mentioning

confidence: 97%

“…104,105 This suggested that AITC enabled the conversion of other methanogenic pathways to hydrogenotrophic methanogenesis. 106 The acclimatization of the microbial community to food additives in anaerobic digestion processes may improve the degradation of food additives and decreases the level of inhibition through the development of specialized microbial communities. However, in most studies of food additives in food waste, the microbial community analysis is based on the taxonomic composition and the relative abundance of the microorganisms obtained by sequencing the 16S rRNA genes.…”

Section: Responses Of the Microbial Community To Food Additives In Fo...mentioning

confidence: 99%

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Insights into the Occurrence, Fate, Impacts, and Control of Food Additives in Food Waste Anaerobic Digestion: A Review

Long

Liu

et al. 2023

Environ. Sci. Technol.

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The recovery of biomass energy from food waste through anaerobic digestion as an alternative to fossil energy is of great significance for the development of environmental sustainability and the circular economy. However, a substantial number of food additives (e.g., salt, allicin, capsaicin, allyl isothiocyanate, monosodium glutamate, and nonnutritive sweeteners) are present in food waste, and their interactions with anaerobic digestion might affect energy recovery, which is typically overlooked. This work describes the current understanding of the occurrence and fate of food additives in anaerobic digestion of food waste. The biotransformation pathways of food additives during anaerobic digestion are well discussed. In addition, important discoveries in the effects and underlying mechanisms of food additives on anaerobic digestion are reviewed. The results showed that most of the food additives had negative effects on anaerobic digestion by deactivating functional enzymes, thus inhibiting methane production. By reviewing the response of microbial communities to food additives, we can further improve our understanding of the impact of food additives on anaerobic digestion. Intriguingly, the possibility that food additives may promote the spread of antibiotic resistance genes, and thus threaten ecology and public health, is highlighted. Furthermore, strategies for mitigating the effects of food additives on anaerobic digestion are outlined in terms of optimal operation conditions, effectiveness, and reaction mechanisms, among which chemical methods have been widely used and are effective in promoting the degradation of food additives and increasing methane production. This review aims to advance our understanding of the fate and impact of food additives in anaerobic digestion and to spark novel research ideas for optimizing anaerobic digestion of organic solid waste.

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Section: Responses Of the Microbial Community To Food Additives In Fo...mentioning

confidence: 97%

Section: Responses Of the Microbial Community To Food Additives In Fo...mentioning

confidence: 99%

Insights into the Occurrence, Fate, Impacts, and Control of Food Additives in Food Waste Anaerobic Digestion: A Review

Long

Liu

et al. 2023

Environ. Sci. Technol.

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Electronic regulation to achieve efficient anaerobic digestion of organic fraction of municipal solid waste (OFMSW): strategies, challenges and potential solutions

Chen,

Wang,

Ghofrani-Isfahani

et al. 2024

Front. Environ. Sci. Eng.

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Anaerobic digestion (AD) of organic fraction of municipal solid waste (OFMSW) is prone to system breakdown under high organic loading rates (OLRs) condition, which subsequently reduces the efficiency of digestion process and results in substantial economic losses. In this perspective paper, the substances metabolisms, electrons flow, as well as microbial interaction mechanisms within AD process are comprehensively discussed, and the underlying bottleneck that causes inefficient methane production is identified, which is “electrons surplus”. Systems encountering severe electron surplus are at risk of process failure, making it crucial to proactively prevent this phenomenon through appropriate approaches. On this basis, the present perspective proposes three potential electronic regulation strategies to prevent electrons surplus, namely, electron shunt, accelerating electron transfer and regulating methanogenic metabolism pathway, and presents specific methodologies for each strategy. Furthermore, the potential solutions to challenges that may occur during the electronic regulation process are also presented in this paper. This perspective aims to provide innovative approaches to achieve the efficient and stable operation of OFMSW anaerobic digestion, especially under high OLRs condition.

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Synergetic Hydrogen and Methane Productions from Anaerobic Digestion of Selected Rural-Farming Plant and Animal-Based Biomass Wastes

Kriswantoro,

Tseng,

Fois

et al. 2024

Korean J. Chem. Eng.

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Inhibitory mechanisms on dry anaerobic digestion: Ammonia, hydrogen and propionic acid relationship

Cited by 30 publications

References 67 publications

Insights into the Occurrence, Fate, Impacts, and Control of Food Additives in Food Waste Anaerobic Digestion: A Review

Insights into the Occurrence, Fate, Impacts, and Control of Food Additives in Food Waste Anaerobic Digestion: A Review

Electronic regulation to achieve efficient anaerobic digestion of organic fraction of municipal solid waste (OFMSW): strategies, challenges and potential solutions

Synergetic Hydrogen and Methane Productions from Anaerobic Digestion of Selected Rural-Farming Plant and Animal-Based Biomass Wastes

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