通过微/纳米气泡增强的同位素代谢增强了草合消化中的甲原性能
Yanning Hou1, Chao Liu1, Jianhong Wei2
1College of Environment & Ecology, Hunan Agricultural University, Changsha, Hunan 410128, PR China.
Bioresource technology
|July 13, 2025
概括
空气纳米泡水显著增加了米和猪共同消化的甲产量. 这种先进的通风方法增强了微生物活动,减少了氧化应激,从而提高了生物气产量.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 厌氧消化 厌氧消化
背景情况:
- 农业废物的无氧共消化 (AcoD) 对可持续能源至关重要.
- 优化甲生产需要高效的微生物过程和减少抑制.
- 传统的通风方法可能无法完全提高AcoD的性能.
研究的目的:
- 为了比较空气-纳米泡水 (空气-NBW) 与微泡气化来增强甲生产.
- 研究空气NBW对微生物活动和社区结构的机械效应.
- 评估NBW技术在废物转化能源应用中的潜力.
主要方法:
- 米和猪的无氧共消化,采用不同的空气化策略.
- 累计甲产量和生产率的测量.
- 对酶活动 (β-葡萄糖酶,共酶F420) 和微生物群体结构的分析.
- 抗氧化酶的基因表达分析.
主要成果:
- 空气NBW (T3-NBW) 实现了最高的累计甲产量 (489.49 mL/g·VS),比对照组增加了59.80%.
- NBW显著增强了β-葡萄糖酶和辅酶F420的活性,表明改善了水解和甲基生成.
- 乙类甲生成占主导地位,在NBW治疗中甲类植物的丰度达到91.66%.
- NBW治疗减少了氧化应激,由较低的抗氧化酶基因表达体现出来.
结论:
- 空气纳米泡水是一种高度有效的策略,可以在AcoD期间增强甲产量.
- 通过优化氧气分散和氧化还原平衡,NBW技术提高了微生物的效率和稳定性.
- 在可持续的废物转化能源系统中,NBW提供了一种有前途的方法来改善甲回收.
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