Factors affecting gaseous emissions, maturity, and energy efficiency in composting of livestock manure digestate

Li, Yangyang; Han, Yiyu; Zhang, Yiran; Fang, Yanru; Li, Shuyan; Li, Guoxue; Luo, Wenhai

doi:10.1016/j.scitotenv.2020.139157

Cited by 43 publications

(5 citation statements)

References 39 publications

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“…In the process of aerobic hot composting of livestock manure, the microbial flora (bacteria, fungi, and actinomycetes) have a small size, large specific surface area, high enzyme activity, and strong biochemical ability for degradation. These microorganisms have large counts, short generation time, rapid reproductive capacity, and robust metabolism, playing a leading role in the decomposition of organic matter in livestock manure during aerobic hot composting [15].…”

Section: Microbiological Mechanism Of Livestock Manure Compostingmentioning

confidence: 99%

Study on the Ecological Succession of Microbial Communities During Hot Composting of Livestock Manure

Zhen

Dong

Liu

et al. 2023

Ecological Chemistry and Engineering S

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There have been various environmental issues in the treatment and resource utilisation of solid waste of livestock and poultry industry in Gansu Province. Thus, in this study, manure of cattle, pig, and chicken from farms near the Lanzhou University of Technology in Lanzhou City, Gansu Province were selected as raw materials for composting using 10 % corn stalk as a leavening agent for aerobic static composting. This study focused on bacterial, fungal, and actinomycetes community succession during livestock manure composting and the underlying microbial degradation mechanism. The results demonstrated that during livestock manure composting, the number of the above-mentioned types of microbes was all positively correlated with the temperature of the compost piles. In the initial stage of composting, the number of microbes increased as the temperature increased, and reached the peaks at the highest temperature, after which, their numbers decreased with the decrease in temperature. At the end of composting, in the cattle, pig, and chicken manure compost piles, the number of bacteria were respectively (3.1 ±1.0) · 109 CFU·g−1 d.w., (4.4 ±1.0) · 109 CFU·g−1 d.w. and (6.7 ±1.8) · 109 CFU·g−1 d.w., respectively, those of fungi were (8.6 ±1.2) · 104 CFU·g−1 d.w., (7.2 ±1.6) · 104 CFU·g−1 d.w. and (8.0 ±2.8) · 104 CFU·g−1 d.w., respectively, while those of actinomycetes were (8.8 ±2.2) · 106 CFU·g−1 d.w., (9.5 ±2.1) · 106 CFU·g−1 d.w. and (6.32 ±0.98) · 106 CFU·g−1 d.w., respectively.

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Section: Microbiological Mechanism Of Livestock Manure Compostingmentioning

confidence: 99%

Study on the Ecological Succession of Microbial Communities During Hot Composting of Livestock Manure

Zhen

Dong

Liu

et al. 2023

Ecological Chemistry and Engineering S

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“…BSFL produces less and cleaner GHG than vermicompost and traditional composting in agricultural waste and food waste substrate. GHG emission is also determined by other factors, such as C/N ratio, pH, composting time, substrate, and aeration rate (Rehman et al 2018;Li et al 2020;Lindberg et al 2022a).…”

Section: Organic Waste Bioconversion With Bsfmentioning

confidence: 99%

Black Soldier Fly (Hermetia illucens) as a Potential Agent of Organic Waste Bioconversion

Purnamasari

Khasanah

2022

AJSTD

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The use of black soldier fly (BSF) as a bioconversion agent has become an emerging breakthrough in waste processing. Organic wastes, such as household waste and livestock manure, can be used as a growth medium for BSF larvae and converted into favorable products. The average composting time of BSF larvae is around 12– 15 days, which is faster than that of microbes or earthworms (4–5 weeks). BSF shows potential as a feed and food ingredient because it has a high nutritional content, such as enzyme, chitin, medium-chain fatty acid, and antimicrobial peptides, and can be used as a functional food ingredient. From an economical perspective, the short composting period and the role of BSF as a feed and food alternatives can benefit producers and consumers. The safety aspects of BSF utilization, including microbial safety, chemical safety, and environmental safety, warrant clarification to ensure BSF safety. However, some challenges arise regarding the use of BSF larvae (BSFL) as a bioconversion agent, such as for heavy metal residues, pesticide residues, pathogens, and antimicrobial gene transmission and residues that require the best composting strategy for mitigation. The environmental safety of organic waste treated with BSFL has a good impact; therefore, this strategy can be used to reduce global warming. Research must focus on effectively and safely enhancing the cultivation and processing of BSF and its applications as a functional food. In conclusion, BSF is a profitable alternative for organic waste bioconversion in developed and developing countries.

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“…Unlike the conventional composting and AD, CWs, MBRs, and MBSs can effectively remove hormones from LWW. (2) Energy consumption: The energy consumed in composting was around 16 kWh/t (including compost operation, leachate, and odor gas treatment) [64], which is lower than the energy consumption of the AD process (30e50 kWh/t) [65]. CWs are vegetation-based technologies which consume limited energy during their operation compared with other technologies.…”

Section: Comparison Of Five Bioprocessesmentioning

confidence: 99%

Recent applications of biological technologies for decontaminating hormones in livestock waste and wastewater

Zhou¹,

Zheng²,

Hoek

et al. 2021

Current Opinion in Environmental Science & Health

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Factors affecting gaseous emissions, maturity, and energy efficiency in composting of livestock manure digestate

Cited by 43 publications

References 39 publications

Study on the Ecological Succession of Microbial Communities During Hot Composting of Livestock Manure

Study on the Ecological Succession of Microbial Communities During Hot Composting of Livestock Manure

Black Soldier Fly (Hermetia illucens) as a Potential Agent of Organic Waste Bioconversion

Recent applications of biological technologies for decontaminating hormones in livestock waste and wastewater

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