适应无氧消化生物炭特性:在高有机负荷下提高性能
Mehdi Bahrami1, Ianny Andrade Cruz1, Ian Macedo Silva1
1Biomass Technology Laboratory, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, Québec, Canada.
Bioresource technology
|August 23, 2025
概括
生物炭可以增强食物废物的无氧消化. 最佳性能取决于生物炭特性,剂量和颗粒大小,更高的微波功率热解和增加的剂量为更快的消化和甲产生最佳结果.
科学领域:
- 生物技术
- 环境科学
- 材料科学
背景情况:
- 无氧消化 (AD) 对于食品废物管理和生物气生产至关重要.
- 优化AD效率对于可持续的能源生产至关重要.
- 生物炭是一种富含碳的材料,具有改善AD过程的潜力.
研究的目的:
- 研究生物炭的物理化学特性,剂量和颗粒大小如何影响食物废物的无氧消化.
- 确定AD中生物炭应用的最佳条件.
- 评估生物炭对消化时间和甲产量的影响.
主要方法:
- 食品废弃物的无氧消化在原料与注射量比率为2.4进行.
- 生物炭是通过微波辅助热解在不同功率水平 (750,1250,1750W) 来生产的.
- 生物炭在10g/L,20g/L和30g/L的剂量下进行了测试,颗粒大小有所变化.
主要成果:
- 生物炭在阿尔茨海默病中的性能受到其特性和剂量的显著影响.
- 在1750W的生物炭和30g/L的应用最大限度地减少了59.4%的滞后阶段,加速了甲产量.
- 更细的生物炭颗粒大小改善了早期消化,但剂量和热解条件的影响更大.
结论:
- 生物炭的特性,剂量和颗粒大小协同增强了食物废物的无氧消化.
- 优化生物炭的应用可以显著减少消化时间并提高甲生产效率.
- 这项研究提供了在高有机载荷条件下利用生物炭作为有效的AD添加剂的见解.
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