热友微生物群适应促进食物废物的无氧消化:优化和绩效评估
Hengxuan Shao1, Chunle Yuan1, Jingwen Qiang1
1Biochemical Engineering College, Beijing Union University, Beijing, China.
PloS one
|November 10, 2025
概括
热友性无氧消化 (TAD) 有效地处理食物浪费,提高了生物气产量的60.8%. 两阶段的温度转移策略增强了微生物群落和稳定性,即使有机载荷率波动.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 微生物学 微生物学
背景情况:
- 热友性无氧消化 (TAD) 提供更快的速度和更高的生物气产量,用于食物浪费 (FW).
- 由于热友微生物稀少以及对有机载荷率 (OLR) 变化的敏感性,TAD的应用受到限制.
- 建立稳定的热友甲产物社区对于高效的FW治疗至关重要.
研究的目的:
- 使用两阶段温度转移策略,开发一个稳定的热爱甲产生的社区.
- 通过评估温度和OLR的影响,优化食品废弃物处理的TAD.
- 为了分析微生物社区在食物浪费的TAD期间的转移.
主要方法:
- 实现了两阶段的温度转移,从美索菲尔到热友条件.
- 逐渐提高有机载荷率 (OLR) 从1.5g增加到4gVS/L·d.
- 分析了生物气产量,甲 (CH4) 含量和微生物群落组成.
主要成果:
- 生物气产量随着温度的增加而增加,在55°C时达到671.2毫升/天的峰值 (60.8%高于美索菲尔).
- TAD增强了关键的微生物群体,包括水解细菌 (Defluviitoga) 和性甲基生物 (Methanoculleus).
- 增加的OLR (1.5至4克VS/(L·d)) 提高了生物气产量,达到2264.8毫升/天,含有稳定的CH4含量 (72-76%).
结论:
- 两个阶段的温度转移有效地建立了稳定的热友社区,用于食物废物消化.
- 与美索菲尔消化相比,TAD显著提高了生物气体生产和微生物效率.
- 优化OLR管理是最大化TAD系统中生物气产量和稳定的关键.
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