连续乳酸驱动的餐厅食品废弃物的暗发酵:过程特征和暂时的盛宴/饥荒扰乱的新见解
Lois Regueira-Marcos1, Raúl Muñoz1, Octavio García-Depraect1
1Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011 Valladolid, Spain; Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011 Valladolid, Spain.
Bioresource technology
|June 26, 2023
概括
这项研究优化了食品废弃物的持续黑暗发酵以生产气. 16小时的最佳液压保留时间产生了最高的输出,显示了对供应中断的弹性.
科学领域:
- 生物技术是生物技术.
- 可再生能源可再生能源是可再生能源.
- 环境科学 环境科学
背景情况:
- 食品废弃物构成了处理的重大挑战,也是生物能源的潜在资源.
- 暗发酵是一种有希望的无氧过程,用于将有机物转化为气.
- 优化过程参数,如液压保留时间,对于高效的生产至关重要.
研究的目的:
- 调查液压保留时间 (HRT) 对食品废弃物 (FW) 持续乳酸驱动的暗发酵 (LD-DF) 的影响.
- 评估生物工艺对抗盛宴/饥荒干扰的稳定性.
- 确定最大限度地提高气生产速度 (HPR) 的最佳条件.
主要方法:
- 使用一个连续动的坦克发酵器,用模拟的餐厅食品废物养.
- 系统地将HRT从24小时减少到16小时和12小时.
- 引入了12小时的食中断,以模拟盛宴/饥荒扰乱.
- 分析代谢物以确认LD-DF并与生产相关.
主要成果:
- 确定最大气生产率的最佳HRT为16小时,达到4.2 L H2/L-d.
- 节日/饥荒扰乱导致HPR暂时峰值为19.2 L H2/L-d,稳定性恢复到4.3 L H2/L-d.
- 产量与乳酸盐消费和丁酸盐产量正相关,证实了LD-DF.
结论:
- 食品废弃物LD-DF过程对HRT非常敏感,但对短暂的盛宴/饥荒干扰有弹性.
- 最佳的HRT对于从食品废物中实现高速气生产至关重要.
- 这种生物工艺有可能从有机废物流中产生可持续的气.
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