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甲产量和微生物动力学在固态无氧代谢中甘包和牛的糖甘和牛

Larissa Maria Silveira Pereira¹, Carlos Vitor Ribeiro Pereira¹, Ilton José Baraldi¹

¹Federal University of TechnologyParaná (UTFPR), Avenida Brasil 4232, Parque Independência, Medianeira 85884-000, Brazil.

|March 9, 2026

概括

优化甘袋和牛的固体无氧消化 (SS-AD) 需要特定的条件. 在这种可持续的生物质价值化过程中,中间总固体和C/N比率提高了甲生产和微生物稳定性.

科学领域:

生物技术和生物工程生物技术和生物工程
环境科学环境科学
微生物学微生物学

背景情况:

固态无氧消化 (SS-AD) 是农业工业残留物价值化的可持续方法.
有限的质量转移和过程不稳定性往往阻碍SS-AD的效率.

研究的目的:

调查SS-AD.中的甘包油 (SCB) 和牛 (BM) 的共同消化.
通过不同的基质与注射剂 (S/I) 比率,总固体 (TS) 和碳与 (C/N) 比率来确定甲生产的最佳操作条件.

主要方法:

代码化试验的S/I比率 (0.5-2.0),TS (8.9-17.2%) 和C/N比率 (16-37) 都有所不同.
测量了体积尺度甲产量.
分析了微生物特征,包括细菌和古生物群落.

主要成果:

最高的甲产量 (12.6-13.9 L CH4 L-1反应堆) 在中间TS (11.6-12.5%) 和C/N (19-26%) 比率下实现.
在S/I=1.0之前,SCB单消化是可行的;与BM一起共消化允许更高的负载 (S/I=1.5).
微生物的转变包括Clostridium sensu stricto1和Solibacillus的主导地位,Methanosarcina主导着古老的社区,并偏爱变性途径.

结论:

为了提高SS-AD的效率和弹性,确定了最佳的操作值.
了解微生物社区动态对于强大的干消化系统至关重要.
这项研究支持开发高效的SS-AD用于细胞菌生物质价值化.

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