Anaerobic co-digestion of chicken manure and cardboard waste: Focusing on methane production, microbial community analysis and energy evaluation

Zhao, Shunan; Chen, Wenhan; Luo, Wendan; Fang, Hongli; Lv, Huanyu; Liu, Rutao; Niu, Qigui

doi:10.1016/j.biortech.2020.124429

Cited by 46 publications

(14 citation statements)

References 44 publications

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“…Previous studies have reported that Firmicutes are the dominant bacteria in the AD system. ,, Bacteria belonging to this phylum are fermentative members for the degradation of organic substrates and play an important role in the acetogenic metabolism, with a final product of acetate Proteobacteria are considered a class of bacteria that can degrade glucose, propionic acid, butyric acid, and acetic acid Chloroflexi plays an important role in AD and can degrade both monosaccharides and polysaccharides, as well as generate acetic acid .…”

Section: Resultsmentioning

confidence: 99%

“… 42 Proteobacteria are considered a class of bacteria that can degrade glucose, propionic acid, butyric acid, and acetic acid. 43 Chloroflexi plays an important role in AD and can degrade both monosaccharides and polysaccharides, as well as generate acetic acid. 34 Some of the Actinobacteria contribute to VFAs and propionate production along with hydrolysis.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Temperature on Anaerobic Fermentation of Poplar Ethanol Wastewater: Performance and Microbial Communities

et al. 2023

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Temperature plays an important role in anaerobic digestion (AD), and different substrates have different optimum temperatures in AD. However, the effect of temperature on the performance of AD when cellulosic ethanol wastewater was used as a substrate was rarely reported. Therefore, the digestion characteristics of cellulosic ethanol wastewater at 25, 35, 45, and 55 °C were investigated, and the microbial communities of the sludge sample were analyzed after fermentation. The results showed that the cumulative methane production was the highest at 55 °C, 906.40 ± 50.67 mL/g VS, which was 81.06, 72.42, and 13.33% higher than that at 25, 35, and 45 °C, respectively. The content of methane was 68.13, 49.26, 70.46, and 85.84% at the terminal period of fermentation at temperatures of 25, 35, 45, and 55 °C, respectively. The testing of volatile fatty acids (VFAs) indicated that the accumulation of VFAs did not occur when the fermentation was carried out at 25, 35, and 45 °C; however, the VFA content at 55 °C was much larger than that in the three groups (25, 35, and 45 °C), and the ratio of propionic acid to acetic acid was larger than 1.4 at the late stage of fermentation, so it inhibited the fermentation. The diversity of the microbial community indicated that the floral structure and metabolic pathway of fermentation were alike at 25 and 35 °C. Firmicutes and Proteobacteria were the main flora covering the 25–55 °C-based phylum or below it. The relative abundance of Methanosaeta was the highest when fermentation temperatures were 25 and 35 °C; however, its relative abundance decreased sharply and the relative abundance of Methanosarcina increased substantially when the temperature increased from 35 to 45 °C, which indicated that Methanosarcina can exist in higher temperatures. At the same time, hydrogenotrophic methanogens such as Methanoculleus and Methanothermobacter were dominant when fermentation temperatures were 45 and 55 °C, which indicated that the metabolic pathway changed from acetoclastic methanogenesis to hydrogenotrophic methanogenesis.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effect of Temperature on Anaerobic Fermentation of Poplar Ethanol Wastewater: Performance and Microbial Communities

et al. 2023

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“…The addition of CB increased extracellular polymeric substance secretion which improved the electron transfer in acidogenesis and increased 31.6 % hydrolase. The higher methane production was due to the matching of hydrolytic and acidogenesis bacteria 56. The co‐digestion of microbial biomass (MB, Pichia kudriazevii ) with pig manure, CM, and cow dung led to the highest methane production at the co‐digestion ratio of 1:1:1:1.…”

Section: Control Strategiesmentioning

confidence: 98%

Control Strategies for Enhanced Biogas Production from Chicken Manure

et al. 2023

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The control strategies adopted in formulation and anaerobic digestion (AD) process of chicken manure (CM) for the control and enhancement of biogas production are reviewed. The existing limitations and future challenges in the production of biogas from AD of CM are briefly discussed. The control strategy adopted for formulation is pretreatment of CM (physical, chemical, biological, and thermal) while strategies for AD include selection of optimal parameters (pH, C/N ratio, organic loading rate (OLR), and temperature), co‐AD with other substrates, and addition of supporting materials. The pretreatment of CM, selection of optimal parameters, Co‐AD of CM with other substrates, and addition of supporting materials overall enhance biogas and methane production due to increase of hydrolysis and C/N and decrease of ammonia inhibition, CO2 and H2S contents. The implementation of developed control strategies in continuous plants, development of new strategies, and use of supporting materials in combinations of two or three for better performance are the future challenges in the AD of CM. The control strategies had a significant impact on the efficient use of CM and improved biogas and methane production.

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“…9,25 The VFAs (formate, acetate, propionate, butyrate, valerate, and isovalerate) concentrations were determined by high-performance liquid chromatography (Waters). 3 The pH values were measured by a digital pH meter (Thermo), and the COD concentration was measured by a HACH reagent (HACH). Heat extraction was used to analyze extracellular polymeric substances (EPS), 9 and the detailed method is presented in Text S2.…”

Section: Anaerobic Fermentationmentioning

confidence: 99%

Quorum Sensing Enhances Direct Interspecies Electron Transfer in Anaerobic Methane Production

Zhao,

Zhu,

Liu

et al. 2024

Environ. Sci. Technol.

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Direct interspecies electron transfer (DIET) provides an innovative way to achieve efficient methanogenesis, and this study proposes a new approach to upregulate the DIET pathway by enhancing quorum sensing (QS). Based on longterm reactor performance, QS enhancement achieved more vigorous methanogenesis with 98.7% COD removal efficiency. In the control system, methanogenesis failure occurred at the accumulated acetate of 7420 mg of COD/L and lowered pH of 6.04, and a much lower COD removal of 41.9% was observed. The more significant DIET in QS-enhancing system was supported by higher expression of conductive pili and the c-Cyts cytochrome secretion-related genes, resulting in 12.7-and 10.3-fold improvements. Moreover, QS enhancement also improved the energy production capability, with the increase of F-type and V/A-type ATPase expression by 6.3-and 4.2-fold, and this effect probably provided more energy for nanowires and c-Cyts cytochrome secretion. From the perspective of community structure, QS enhancement increased the abundance of Methanosaeta and Geobacter from 54.3 and 17.6% in the control to 63.0 and 33.8%, respectively. Furthermore, the expression of genes involved in carbon dioxide reduction and alcohol dehydrogenation increased by 0.6-and 7.1fold, respectively. Taken together, this study indicates the positive effects of QS chemicals to stimulate DIET and advances the understanding of the DIET methanogenesis involved in environments such as anaerobic digesters and sediments.

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Anaerobic co-digestion of chicken manure and cardboard waste: Focusing on methane production, microbial community analysis and energy evaluation

Cited by 46 publications

References 44 publications

Effect of Temperature on Anaerobic Fermentation of Poplar Ethanol Wastewater: Performance and Microbial Communities

Effect of Temperature on Anaerobic Fermentation of Poplar Ethanol Wastewater: Performance and Microbial Communities

Control Strategies for Enhanced Biogas Production from Chicken Manure

Quorum Sensing Enhances Direct Interspecies Electron Transfer in Anaerobic Methane Production

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