微生物注射对减轻气味释放,减少和硫损失以及在食品废弃物堆肥过程中加速成熟的影响
Wenhui Wei1, Zhengao Zhang1, Jinglin Li2
1State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing, 100048, China.
Journal of environmental management
|February 6, 2026
概括
用微生物剂进行生物增强显著减少了食品废弃物堆肥的气味和氨和硫化的排放. 这种方法增强了微生物多样性,促进了堆肥成熟,并保护了营养素.
科学领域:
- 环境微生物学 环境微生物学
- 废物管理 废物管理
- 生物技术是生物技术.
背景情况:
- 食品废弃物的堆肥通常会产生大量的气味排放,包括氨 (NH3) 和硫化 (H2S).
- 挥发性有机化合物 (VOC) 和特定的微生物种群有助于这些不良气味.
- 了解微生物社区动态和基因表达对于优化堆肥过程至关重要.
研究的目的:
- 评估耐热,抑制气味的微生物剂对食品废弃物堆肥的影响.
- 评估气味剂,VOC,微生物结构,酶活动和基因表达的变化.
- 阐明微生物注射背后的机制,以减轻气味和增强堆肥.
主要方法:
- 用一种特定的微生物剂对食品废弃物的生物增量进行堆肥.
- 测量NH3,H2S,乙醇和乙甲的累积排放.
- 高通量16SrRNA测序用于微生物社区分析.
- 定量PCR (qPCR) 用于评估和硫循环基因的表达.
主要成果:
- 累计NH3和H2S的排放量分别减少了73.45%和65.30%.
- 微生物注射增加了微生物的丰富性,多样性和热友菌株的丰富性.
- 观察到关键的和硫循环基因 (narG, norB, nif, nrfA, nirB, aprA, sat) 的下调.
结论:
- 微生物注射在减轻食品废物堆肥期间的气味排放方面是有效的.
- 该过程增强了堆肥的成熟,减少了营养损失,并抑制了产生气味的微生物群体.
- 机械洞察力揭示了微生物剂调节酶活动和基因表达,以改善堆肥结果.
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