堆肥
厚壁菌
食物垃圾
化学
有机质
绿色废弃物
氮气
反硝化细菌
放线菌门
发酵
蛋白质细菌
废物管理
环境化学
食品科学
农学
反硝化
生物
有机化学
工程类
基因
生物化学
16S核糖体RNA
作者
Shangao Xiong,Yongdi Liu,Hao Zhang,Shaoqi Xu,Songrong Li,Xinqi Fan,Rui Chen,Guochun Ding,Ji Li,Yuquan Wei
标识
DOI:10.1007/s11356-022-24752-5
摘要
This study is aimed at adding different types of mature compost and sulfur powder, as additives into food waste composting to investigate the effect on nitrogen loss and compost maturity. The composting experiment used the in-vessel composting method and was conducted continuously for 15 days. High-throughput sequencing was used to analyze the bacterial community during composting. Results showed that the secondary fermentation mature compost mixed with sulfur powder group had the most reduction of ammonia emission (56%) and the primary fermentation mature compost amendments were the most effective for nitrous oxide emission reduction (37%). The temperature, pH, and nitrogen forms of transformation of the pile significantly affect the nitrogen loss during composting. Firmicutes helped to promote the rapid warming of the pile, and Actinobacteria and Proteobacteria played an important role in decomposition of organic matter. Thermobifida and Ureibacillus had a main contribution to the rapid degradation of organic matter in the process of composting. The relative abundance of nitrogen-fixing bacteria was higher, and the relative abundance of predominantly ammonifying and denitrifying bacteria was lower than the control group, with the addition of different additives.
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