Study on the ecological succession of microbial communities during hot composting of livestock manure

• Autorzy: Zhen Xiaofei , Song Ti , Liu Jia , Luo Miao , Li Shange

Identyfikatory

DOI

10.2478/eces-2023-0005

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

livestock manure; poultry manure; hot composting; ecological succession; microbial mechanism

PL

inwentarz żywy; drób; kompostowanie na gorąco; sukcesja ekologiczna; mechanizm mikrobiologiczny

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. S
• Rocznik: 2023
• Tom: Vol. 30, nr 1
• Strony: 79--89
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Zhen Xiaofei

• School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
• Key Laboratory of Railway Vehicle Thermal Engineering of MOE, Lanzhou Jiaotong University, Lanzhou, 730070, China

• https://orcid.org/0000-0002-8741-5107

autor

Song Ti

• School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

autor

Liu Jia

• School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

autor

Luo Miao

• School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

autor

Li Shange

• School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).