Microbial community dynamics in mesophilic anaerobic co-digestion of mixed waste

Supaphol, Savaporn; Jenkins, Sue; Intomo, Pichamon; Waite, Ian; O’Donnell, Anthony G.

doi:10.1016/j.biortech.2010.11.124

Cited by 161 publications

(55 citation statements)

References 34 publications

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“…Some studies showed that hydrogenotrophic pathway prevailed in the co-digesters of agricultural waste (Jaenicke et al 2011). Acetoclastic methanogenesis may be a major pathway in some systems (Supaphol et al 2011), or both pathways were utilized for methanogenesis ). In our system, the equal relative abundance of Methanoculleus and Methanosaeta , and prokaryotic community compositions (top 208 genera) at genus level.…”

Section: Discussionmentioning

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: Discussionmentioning

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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“…RWB4 was closely related to several Acinetobacter species. Although Acinetobacter is generally regarded as an obligate aerobic genus, its members have been observed to be active and abundant in different anaerobic or oxygen-limited environments, including AD systems (Supaphol et al, 2011;Baek et al, 2014;Resende et al, 2014). Their role in AD environments could be associated with the oxidation of organic matter or sulfides through anaerobic respiration (Supaphol et al, 2011;Baek et al, 2014).…”

Section: Dgge and Phylogenetic Affiliationmentioning

confidence: 99%

Anaerobic treatment of rice winery wastewater in an upflow filter packed with steel slag under different hydraulic loading conditions

Kim

Hwang

et al. 2015

Bioresource Technology

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“…The formation of a productive anode community able to digest waste organics and liberate electrons is required for successful application. Although community assembly is poorly understood in the microbial world in general and in BES in particular [1] it might be reasonable to assume that it is affected by both the temperature, substrate and inocula [2,3]. These have been studied independently within BES research, but not consolidated within one study where direct comparisons can be made.…”

Section: Introductionmentioning

confidence: 99%

Temperature, inocula and substrate: Contrasting electroactive consortia, diversity and performance in microbial fuel cells

Heidrich

Dolfing

Wade

et al. 2018

Bioelectrochemistry

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The factors that affect microbial community assembly and its effects on the performance of bioelectrochemical systems are poorly understood. Sixteen microbial fuel cell (MFC) reactors were set up to test the importance of inoculum, temperature and substrate: Arctic soil versus wastewater as inoculum; warm (26.5°C) versus cold (7.5°C) temperature; and acetate versus wastewater as substrate. Substrate was the dominant factor in determining performance and diversity: unexpectedly the simple electrogenic substrate delivered a higher diversity than a complex wastewater. Furthermore, in acetate fed reactors, diversity did not correlate with performance, yet in wastewater fed ones it did, with greater diversity sustaining higher power densities and coulombic efficiencies. Temperature had only a minor effect on power density, (Q 10 : 2 and 1.2 for acetate and wastewater respectively): this is surprising given the well-known temperature sensitivity of anaerobic bioreactors. Reactors were able to operate at low temperature with real wastewater without the need for specialised inocula; it is speculated that MFC biofilms may have a self-heating effect. Importantly, the warm acetate fed reactors in this study did not act as direct model for cold wastewater fed systems. Application of this technology will encompass use of real wastewater at ambient temperatures.

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Microbial community dynamics in mesophilic anaerobic co-digestion of mixed waste

Cited by 161 publications

References 34 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

Anaerobic treatment of rice winery wastewater in an upflow filter packed with steel slag under different hydraulic loading conditions

Temperature, inocula and substrate: Contrasting electroactive consortia, diversity and performance in microbial fuel cells

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