玉米秸秆和鸡粪连续高温发酵过程和发酵微生物特征分析 Analysis of Continuous High-Temperature Fermentation of Corn Straw and Chicken Manure and Characteristic of Fermentation Microorganism
采用连续罐式高温好氧发酵工艺,研究玉米秸秆和鸡粪在每日连续进料出料过程中发酵变化规律,并分析发酵产物中细菌的生物多样性特征。结果表明,在没有发酵升温阶段和降温阶段情况下,玉米秸秆和鸡粪可以利用连续进料高温发酵进行无害化、资源化处置,罐内发酵温度、含水率和有机质指标稳定,发酵产物腐熟度高。不同时期的发酵细菌群落结构相对稳定,放线菌门细菌的相对丰度均超过50%,芽孢杆菌的含量随连续发酵时间的增加而增大。
Using a continuous tank high-temperature aerobic fermentation process, the fermentation changes of corn stalks and chicken manure during the daily continuous feeding and discharging process were studied, and the biological diversity characteristics of the bacteria in the fermentation products were analyzed. The results show that, without the fermentation heating stage and cooling stage, corn stalks and chicken manure can use continuous feed high-temperature fermentation for harmless and resource disposal. The fermentation temperature, moisture content and organic matter indicators in the tank are stable, and the fermentation products are mature with high degree. The community structure of fermenting bacteria in different periods is relatively stable, the relative abundance of Actinomycota bacteria exceeds 50%, and the content of Bacillus increases with the increase of continuous fermentation time.
Villar, I., Alves, D., Garrido, J., et al. (2016) Evolution of Microbial Dynamics during the Maturation Phase of the Composting of Different Types of Waste. Waste Management, 54, 83-92.
https://doi.org/10.1016/j.wasman.2016.05.011
[6]
Yang, X., Liu, E.K., Zhu, X.M., et al. (2019) Impact of Com-posting Methods on Nitrogen Retention and Loses during Manure Composting. International Journal of Environmental Research and Public Health, 16, 3324.
https://doi.org/10.3390/ijerph16183324
[7]
Wang, J., Shi, X., Zheng, C., et al. (2022) Different Responses of Soil Bacterial and Fungal Communities to Nitrogen Deposition in a Subtropical Forest. Science of the Total Environment, 755, Article ID: 142449.
https://doi.org/10.1016/j.scitotenv.2020.142449