由固体废物处理厂产生的真正有机废物的乳酸驱动暗发酵生产生物
Cristina Martínez-Fraile1, Raúl Muñoz1, María Teresa Simorte2
1Institute of Sustainable Processes, 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
|May 16, 2024
概括
有机废物发酵可以产生. 城市固体废弃物的有机分量 (OFMSW) 显示出最高的产量,在pH值6.5和总固体的7.5%下发现的最佳条件.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 有机废物是一个重要的处置挑战.
- 可持续的废物利用方法至关重要.
- 是一种清洁的能源载体,需求日益增长.
研究的目的:
- 通过各种有机废物的乳酸驱动暗发酵 (LD-DF) 来评估的生产.
- 确定最佳的操作参数 (pH,总固体) 以最大限度地提高产量.
- 调查乳酸作为LD-DF中的前体的作用.
主要方法:
- 使用不同的有机废物流进行批量发酵实验.
- 分析的产量和组成.
- 监测乳酸盐和碳水化合物水平.
- 评价pH值 (5.5-6.5) 和总固体 (5-12.5%w/w) 的影响.
主要成果:
- 只有城市固体废物的有机分量 (OFMSW) 支持了显著的气生产 (70.1 ± 7.7 NmL-H2 / g-VS).
- 在pH值为6.5和总固体 (TS) 的7.5%下实现了最佳产量,产量为55.9NmL-H2/g-VS.
- 碳水化合物对于连续的两步乳酸类型发酵至关重要,乳酸作为关键前体.
结论:
- OFMSW是通过LD-DF生产气的合适基质.
- 通过专门的微生物联盟,LD-DF途径在各种pH和TS条件下是可行的.
- 优化条件提高的产量,有助于废物转化能源战略.
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