Comparison of anaerobic co-digestion of pig manure and sludge at different mixing ratios at thermophilic and mesophilic temperatures

Zhang, Qingfang; Zeng, Liyuan; Fu, Xin; Pan, Feng; Shi, Xiaohui; Wang, Tianfeng

doi:10.1016/j.biortech.2021.125425

Cited by 56 publications

(34 citation statements)

References 47 publications

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“…The addition of biochar in the anaerobic co-digestion of food waste or livestock manure with sewage sludge has recently aroused considerable attention. It has highly synergistic effects on hydrolysis acidification and methane production compared with digestion alone (Johnravindar et al 2021;Liang et al 2021a;Zhang et al 2021d). A recent study indicated that the anaerobic co-digestion of pig manure with municipal sludge enhanced methane yield by 83.0-136.5% and 31.3-68.0% at mesophilic and thermophilic temperatures, respectively (Zhang et al 2021d).…”

Section: Biochar As Additives In Anaerobic Digestionmentioning

confidence: 99%

“…It has highly synergistic effects on hydrolysis acidification and methane production compared with digestion alone (Johnravindar et al 2021;Liang et al 2021a;Zhang et al 2021d). A recent study indicated that the anaerobic co-digestion of pig manure with municipal sludge enhanced methane yield by 83.0-136.5% and 31.3-68.0% at mesophilic and thermophilic temperatures, respectively (Zhang et al 2021d). Notably, certain disadvantages of incompatible inoculum-to-substrate ratio, excessive acidification, and organic overloading may lead to the inhibition of biogas production (Liang et al 2021a).…”

Section: Biochar As Additives In Anaerobic Digestionmentioning

confidence: 99%

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Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Singh

Wang

et al. 2023

Biochar

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As a bioproduct from the thermal decomposition of biomass, biochar has various applications in diversified field. In this study, a bibliometric analysis was conducted to visualize the current research status and trends of biochar research. A total of 5535 documents were collected from the Web of Science Core Collection and subjected to visualization analysis for the biochar field's development in 2021 with CiteSpace software. The visual analysis results demonstrate that the number of publications expanded dramatically in 2021, and the growth trend would continue. China and USA were the most contributing countries in biochar research in terms of the number of publications. Based on the keyword co-occurrence analyses, “Biochar for toxic metal immobilization”, “Biochar-based catalyst for biofuel production”, “Biochar for global climate change mitigation”, “Biochar for salinity and drought stress amelioration”, “Biochar amendment in composting”, and “Biochar as additives in anaerobic digestion” were the main research trends and hotspots in this field in 2021. This indicates that the biochar research was multidisciplinary. Regarding the research hotspots, the employment of biochar as heterogeneous catalysts for biofuel production gained great attention in 2021. On the contrary, bioremediation using functional bacteria immobilized on biochar and biochar-assisted advanced oxidation process were well-studied but with less frequency than other topics in 2021. Furthermore, the future research was proposed for green and sustainable applications of biochar. This review provides a comprehensive overview of the research frontiers, the evolution of research hotspots, and potential future research directions in the biochar field. Graphical Abstract

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Section: Biochar As Additives In Anaerobic Digestionmentioning

confidence: 99%

Section: Biochar As Additives In Anaerobic Digestionmentioning

confidence: 99%

Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Singh

Wang

et al. 2023

Biochar

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Section: Dewaterabilitymentioning

confidence: 99%

“…Zhang et al [42] reported that adding pig manure to sewage sludge ACoD with a mixing ratio of 2:1 improved the final digestate dewaterability. Nevertheless, adding more than that ratio reduced the dewaterability [42]. Azarmanesh et al [43] found that sewage sludge ACoD with food waste could improve the digestate dewaterability due to enhancing VS removal.…”

Section: Dewaterabilitymentioning

confidence: 99%

Anaerobic co-digestion of sewage sludge with other organic wastes: A comprehensive review focusing on selection criteria, operational conditions, and microbiology

Azarmanesh¹,

Qaretapeh²,

Zonoozi³

et al. 2023

Chemical Engineering Journal Advances

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“…The combination of KW and DS provides improved stability for co-digestion systems [17,18]. Temperature is an important factor that influences methane production in AD [19]. Increasing the temperature during anaerobic digestion enhances microbial activity and growth, leading to the rapid breakdown of organic matter into smaller molecules and their further stabilization into valuable organic fertilizers and biogas [12].…”

Section: Introductionmentioning

confidence: 99%

Effects of One-Step Abrupt Temperature Change on Anaerobic Co-Digestion of Kitchen Waste with Dewatered Sludge

Hu,

Zhou,

Zhu

et al. 2023

Fermentation

Self Cite

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The operating temperature of anaerobic digesters should be adjusted to adapt to seasonal variations in environmental temperature and the composition of organic solid waste. This study investigated the effects of one-step abrupt temperature changes (from mesophilic to thermophilic temperature, M–T, and from thermophilic to mesophilic temperature, T–M) and the inoculation ratio on methane yield and microbial diversity during the anaerobic co-digestion of kitchen waste with dewatered sludge. The results showed that the cumulative methane yield (CMY) level resulting from thermophilic control and the M–T digesters was greater than that resulting from mesophilic control and the T–M digesters. The CMF of M–T digesters increased, whereas the CMY of T–M digesters gradually decreased with an increase in the inoculation ratio. The maximal CMY was 385.1 mL/g-VSSadded, which corresponded to an M–T digester with a 5% inoculation ratio. In the later stage of anaerobic digestion, the bacterial community of T–M was more diverse than that of M–T, but the archaeal community of M–T was more diverse than that of T–M. The one-step temperature change from thermophilic to mesophilic temperature was more stable than that from mesophilic to thermophilic temperature.

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Comparison of anaerobic co-digestion of pig manure and sludge at different mixing ratios at thermophilic and mesophilic temperatures

Cited by 56 publications

References 47 publications

Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Bibliometric analysis of biochar research in 2021: a critical review for development, hotspots and trend directions

Anaerobic co-digestion of sewage sludge with other organic wastes: A comprehensive review focusing on selection criteria, operational conditions, and microbiology

Effects of One-Step Abrupt Temperature Change on Anaerobic Co-Digestion of Kitchen Waste with Dewatered Sludge

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