Anaerobic digestion of tobacco stalk: biomethane production performance and kinetic analysis

Lyu, Li; Wang, Ruolin; Jiang, Zhenlai; Li, Wanwu; Liu, Guangqing; Chen, Chang

doi:10.1007/s11356-019-04677-2

Cited by 11 publications

(6 citation statements)

References 30 publications

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“…Meanwhile, the proportion of methane did not change regularly with the concentration of SAs. The results of this experiment were consistent with previous research findings [35,36]. The methane yield was simulated according to the modified Gompertz equation of Eq.…”

Section: Biochemical Methane Potentialsupporting

confidence: 90%

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Effects of sulfonamide antibiotics on digestion performance and microbial community during swine manure anaerobic digestion

Wang

Yuan

et al. 2020

Environmental Engineering Research

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The effects of four types of sulfonamide antibiotics (SAs), including sulfaquinoxaline, sulfamethoxazole, sulfamethoxydiazine and sulfathiazole, on the digestion performance during anaerobic digestion process were studied using a lab-scale anaerobic sequencing batch reactor, and the changes of the community structure in the presence of SAs were investigated with the help of high throughput sequencing. The results indicated that when SAs were added, the hydrolytic acidification process was inhibited, and the accumulation of volatile fatty acids (VFAs) was induced, resulting in the suppression of methane production. However, the inhibition mechanism of different SAs was quite different. The inhibitory effect of high concentration of SAs on the hydrolysis of solid particulate matter into dissolved organic matter followed the order of sulfaquinoxaline > sulfamethoxydiazine > sulfathiazole > sulfamethoxazole. SAs have obvious inhibitory effects on acidification and methanation of dissolved organic matter, especially sulfathiazole. The richness and the community composition of the microorganism including bacteria and archaea in the digestion system were affected by SAs. Under the effect of SAs, the relative abundance of many microorganisms is negatively correlated with methane production, among which Methanobrevibacter, a kind of Archaea, had the greatest influence on methane production.

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Section: Biochemical Methane Potentialsupporting

confidence: 90%

“…At the same time, the R m can also be maintained at about 90 mL/gVS•d. This indicated that the operation of anaerobic digestion system was basically normal [36,38]. The concentration of SAs reached a certain height, the M 0 and R m would decrease sharply.…”

Section: Biochemical Methane Potentialmentioning

confidence: 91%

Effects of sulfonamide antibiotics on digestion performance and microbial community during swine manure anaerobic digestion

Wang

Yuan

et al. 2020

Environmental Engineering Research

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“…Then, the biogas generated in the digester was released by venting device (as shown in Figure 2b), which contained water to prevent gas exchange between atmosphere and digester. Finally, students measured the final pressure of headspace in each digester, and all the digesters were shaken for 1 min to assure the AD efficiency 18 . All the measurements in this section were performed once a day until the methane production for 1 day was less than 1 ml 19 …”

Section: Methodsmentioning

confidence: 99%

“…Finally, students measured the final pressure of headspace in each digester, and all the digesters were shaken for 1 min to assure the AD efficiency. 18 All the measurements in this section were performed once a day until the methane production for 1 day was less than 1 ml. 19 The procedures of the AD laboratory experiment are briefly summarized as Figure 3.…”

Section: Methodsmentioning

confidence: 99%

Anaerobic digestion as a laboratory experiment for undergraduate biochemistry courses

Shen

Chen

2020

Biochem Molecular Bio Educ

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Compared to aerobic catabolism, the theories and experiments of anaerobic catabolism are not covered in depth in biochemistry education curricula. Anaerobic digestion (AD) is a feasible method for converting common organic compounds to renewable energy‐methane that has drawn a great deal of attention in practical applications. In this study, we designed an AD laboratory experiment for use in undergraduate biochemistry courses to supplement the knowledge of metabolic networks in biochemistry and extend the information presented in biochemistry textbooks. In this laboratory experiment, students explored the methane production performance of wheat straw (WS; a representative and commonly available agricultural waste) and mastered a reasonable method for utilizing this new biochemical reaction to convert organic wastes from renewable resources to methane. Basic experimental procedures, such as a biochemical methane potential (BMP) assay, data analysis, and graphic presentations were organized to provide students with abundant hands‐on experience. Furthermore, calculations of significant parameters, such as total solids (TS), volatile solids (VS), experimental methane yield (EMY), maximum theoretical methane production (MMP), and biodegradability (BD), were also performed. From this AD experiment, students learned not only a new series of biochemical reactions but also a novel strategy to achieve cleaner methane production from organic wastes, exhibiting a positive impact for students' learning in biochemistry course.

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“…5 However, lignocellulose in tobacco stalk has complex physical structure and chemical connection, which will cause high resistance in the process of transformation, leading to low biotransformation efficiency. 6 Because there are some deciencies in the above methods, people still need to search for new ways of tobacco stalk resource utilization. Containing a large amount of cellulose and lignin, tobacco stalk can be used as precursor to prepare porous carbon materials.…”

Section: Introductionmentioning

confidence: 99%

Porous carbon from tobacco stalk for removal of organic dyes from water

et al. 2019

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Anaerobic digestion of tobacco stalk: biomethane production performance and kinetic analysis

Cited by 11 publications

References 30 publications

Effects of sulfonamide antibiotics on digestion performance and microbial community during swine manure anaerobic digestion

Effects of sulfonamide antibiotics on digestion performance and microbial community during swine manure anaerobic digestion

Anaerobic digestion as a laboratory experiment for undergraduate biochemistry courses

Porous carbon from tobacco stalk for removal of organic dyes from water

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