Study on improving anaerobic co-digestion of cow manure and corn straw by fruit and vegetable waste: Methane production and microbial community in CSTR process

Wang, Xuemei; Li, Zifu; Xue, Bai; Zhou, Xiaoqin; Cheng, Sikun; Gao, Ruiling; Sun, Jiachen

doi:10.1016/j.biortech.2017.10.038

Cited by 82 publications

(20 citation statements)

References 38 publications

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“…Therefore, cow manure was separated to liquid part (liquid cow manure) containing easily degradable organics (e.g., protein, lipid, and soluble organics) and solid part (residue) containing refractory organics for BMP tests. Lignocellulose was the main refractory organic component of cow manure in this study-up to 51.61%, and difficult to be degraded due to its complex structure (Wang et al, 2018). Figure 3 shows the changes in accumulative methane yields and daily methane yields of liquid cow manure and residue during 22 days.…”

Section: Effects Of Zvi On the Ad Of Substrates With Different Biodegmentioning

confidence: 92%

“…As a major carbon source of agricultural solid waste in AD system, lignocellulose is difficult to be biodegraded because of its highly resistant and recalcitrant biomass structure (Sawatdeenarunat et al, 2015). To improve the biodegradability of substrate and the efficiency of AD, several approaches have been suggested and evaluated in many studies, such as mechanical or chemical pretreatment (Hendriks and Zeeman, 2009), co-digestion with several mixed substrates (Wang et al, 2018), and introduction of additives (Romero-Güiza et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Adding Zero Valent Iron on the Anaerobic Digestion of Cow Manure and Lignocellulose

Men

Zheng

Zhang

et al. 2020

Front. Bioeng. Biotechnol.

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Previous studies showed that adding zero valent iron (ZVI) can increase the methane production and degradation rate of organic waste by improving the performance of anaerobic digester. However, our study firstly found that ZVI (37 µm, 10 g/L) inhibited the anaerobic digestion (AD) of cow manure and lignocellulose. ZVI significantly increased the methanogenic rate of cow manure in the first 6 days, but decreased the accumulative methane yield and volatile fatty acids yield by 10.3 and 12%, respectively. The effect of ZVI on AD of liquid biomass separated from cow manure was positive, but the effect on solid biomass was negative. These results indicated that ZVI enhanced the AD of easily biodegradable organics but inhibited the biodegradation of refractory organics (lignocellulose). By analyzing the varying effects of ZVI in diverse anaerobic systems, it was found that the effects were influenced by the characteristics of substrate and inoculum-substrate ratio. This study suggested that only proper ZVI addition can improve the AD process depending on the feeding materials.

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Section: Effects Of Zvi On the Ad Of Substrates With Different Biodegmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Effects of Adding Zero Valent Iron on the Anaerobic Digestion of Cow Manure and Lignocellulose

Men

Zheng

Zhang

et al. 2020

Front. Bioeng. Biotechnol.

Self Cite

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“…The archaeal community was majorly constituted by Methanosaeta concili. 80 Microbial community shift due to change in temperature conditions was also observed in batch AD of food waste. The dominance of microbial species Levilinea, Syntrophomonas, Methanothrix, and Methanosphaerula under mesophilic conditions was shifted to Levilinea, Ornatilinea, Methanosphaerula, and Methanomassiliicoccus under thermophilic conditions.…”

Section: Structural Compositionmentioning

confidence: 90%

“…128,129 It also facilitates the microbial population stability to enhance the biomethane formation. 80 Lignocellulosic biomass is abundantly form of cellulose and hemicellulose, which acts as a prodigious opportunity for AD but their high C to N ratio and intricacy of the biomass structure which contains 10 to 25% lignin inhibits AD in mono-digestion. 130 Typical lignocellulosic biomass such as corn stove, wheat straw, switch grass, and bagasse have a C to N ratio of 63, 60, 90, and 118, respectively.…”

Section: Conventional Approaches To Mitigate the Challenges Facing Admentioning

confidence: 99%

Facilitated lignocellulosic biomass digestibility in anaerobic digestion for biomethane production: microbial communities' structure and interactions

Faisal

Thakur

Jalalah

et al. 2021

J of Chemical Tech & Biotech

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Lignocellulosic biomass is a highly available and suitable candidate for biogas/biomethane production. However, high concentration of recalcitrant lignin is the major obstacle in successful anaerobic digestion (AD). The main aim of this review is to highlight the applications and challenges of lignocellulosic biomass in AD from the recent reports. Potential approaches to improve instabilities in mesophilic AD process (such as microbial communities' development, co-digestion, biofilm carrier's addition, and essential nutrients supplement) were also reported. This review goes one more step deeper to discuss the key microbes involved in lignocellulosic biomass degradation. Biofilm carriers provide attached growth systems for microbes in AD and acts as redox mediators to accelerate the biotransformation of recalcitrant pollutants. Addition of nanoparticles (NPs) stimulate Firmicutes, Bacteroidetes, Methanosaeta, Methanobacterium, and Methanosarcina population which further improve biomethanation. The comprehensive study of these proposed strategies and microbial stimulation through additives would make the lignocellulosic biomethanation more feasible.

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“…[16], evaluated the co-digestion process of different waste mixtures from agro-industrial activities. [17], studied the methane production, long-chain fatty acids (LCFAs) profile and predominant microorganisms in anaerobic digestion (AD) of lipid-rich swine slaughterhouse (SSW) waste. [18] investigated the biomethane production potential of slaughterhouse waste in the United States.…”

Section: Introductionmentioning

confidence: 99%

Impact of Different Mixing Ratios on Biomethanation of Cattle Blood and Rumen Content

Gyasi¹,

Selormey²,

Darkwah³

et al. 2021

IJRSI

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Biomethane produced by anaerobic digestion of organic waste is a renewable and sustainable energy that can supplement global energy needs. Existing literature shows that different mixing ratios of the same co-substrates have an impact on biomethane production. In this study, the impact of different mixing ratios of cattle blood and rumen contents on biomethane production was investigated. The physicochemical characteristics of seven samples with different blood and rumen contents were determined. Their biomethane yield was then assessed in laboratory-scale batch digesters at 37 o C (mesophilic). The biomethane yields of the samples gave a mean value of 11.25±13.34 which indicates significant variability (p < 0.05). The sample containing 10 ml of bovine blood and 50 ml of rumen contents (S 6 ) gave the highest biomethane yield and can be considered for optimization of biomethane production from these feedstocks.

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Study on improving anaerobic co-digestion of cow manure and corn straw by fruit and vegetable waste: Methane production and microbial community in CSTR process

Cited by 82 publications

References 38 publications

Effects of Adding Zero Valent Iron on the Anaerobic Digestion of Cow Manure and Lignocellulose

Effects of Adding Zero Valent Iron on the Anaerobic Digestion of Cow Manure and Lignocellulose

Facilitated lignocellulosic biomass digestibility in anaerobic digestion for biomethane production: microbial communities' structure and interactions

Impact of Different Mixing Ratios on Biomethanation of Cattle Blood and Rumen Content

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