外部陶膜接触器用于现场H2辅助生物气升级
Hui Ling Chan1, Hui Xu2, Yan Zhou1
1School of Civil and Environmental Engineering, Nanyang Technological University, 639798, Singapore.
Bioresource technology
|June 15, 2024
概括
本研究介绍了一种陶膜接触器,用于高效的生物辅助生物气改造. 这种新型系统显著提高了甲 (CH4) 产量和纯度,克服了溶性限制.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 微生物学 微生物学
背景情况:
- 生物 (H2) 辅助生物气改造为传统方法提供了一个环保的替代方案.
- 在水中的低H2溶解度限制了当前生物气升级技术的效率.
研究的目的:
- 评估一个陶膜接触器模块,用于增强生物气升级中的H2注入.
- 通过克服H2可溶性挑战,提高甲 (CH4) 产量和纯度.
主要方法:
- 设计并测试了一种用于H2溶解的陶膜接触器模块.
- 控制的气体供应和污泥再循环率,以实现最佳性能.
- 分析微生物群落以了解甲基生成途径.
主要成果:
- 在稳定的运行过程中实现了平均98.8%的CH4生物气质量.
- 与基线相比,CH4生产率增加了108%.
- 性能优于传统的扩散器散射 (84% CH4) 效率更高.
- 识别了大量的甲细菌 spp. (95.2%) 支持性甲基生成.
结论:
- 陶膜接触器模块是生物沼气升级的高性能解决方案.
- 该系统通过改善H2溶解,有效地提高了CH4的生产和纯度.
- 将该模块与无氧消化系统相结合,为高效的沼气升级提供了一个有希望的方法.
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