膜光生物反应器用于生物气的捕获和转化 - 在生物膜中增强微生物相互作用
Baorui Zhang1, Jianbo Liu2, Chen Cai3
1Interdisciplinary Graduate Program, Nanyang Technological University, 61 Nanyang Drive, 637335, Singapore; Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore.
Bioresource technology
|December 20, 2024
概括
这项研究表明,带有微藻-甲类植物共同培养的膜光生物反应器显著改善了生物气的捕获. 膜上的生物膜增强二氧化碳和甲的吸收,以实现可持续的生物气利用.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 微生物学 微生物学
背景情况:
- 越来越需要可持续的生物气利用来减轻温室气体排放.
- 微藻-甲类共同培养为生物气捕获提供了一个有前途的方法.
- 膜光生物反应器 (MPBR) 是用于培养微生物的工程系统.
研究的目的:
- 研究1L封闭MPBR的有效性,使用微藻-甲类共同培养来捕获生物气.
- 评估气体膜模块对生物气利用效率的影响.
- 分析生物膜形成在提高MPBR性能方面的作用.
主要方法:
- 使用1L封闭膜光生物反应器 (MPBR) 与微藻-甲类共同培养.
- 运行该系统的液压和固体保留时间为7天,生物气加载率为每天2.7L.
- 采用成像分析和元基因组测序来研究生物膜结构和微生物群落组成.
主要成果:
- 引入气膜模块使CO2-C和CH4-C的吸收率分别增加了12%和50%.
- 在膜表面观察到生物膜的形成,甲类植物集中在膜附近.
- 甲基因组分析显示,生物膜中可溶性甲单氧酶基因的丰富性增加,以及增强的维生素B合成.
结论:
- 在甲类微藻共同培养中,空间组织和代谢相互作用对于有效的生物气捕获至关重要.
- 膜诱导生物膜在提高MPBR性能方面发挥着重要作用.
- 这种方法通过增强的微生物过程提供了对可持续生物气利用的见解.
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