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在没有pH控制的情况下,混合培养微藻-细菌联盟对S弹性生物气的升级和氨的去除

Jaai Kim¹, Dayoung Ko¹, Hyokwan Bae²

¹Department of Civil, Urban, Earth, and Environmental Engineering, UNIST, Ulsan 44919, South Korea.

Bioresource technology

|November 8, 2025

概括

这项研究表明,微藻-细菌联盟可以有效地升级沼气,即使硫化 (H2S) 含量高. 这些有弹性的文化表明了可持续生物气生产和废物利用的潜力.

科学领域:

环境微生物学环境微生物学
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.

背景情况:

无氧消化 (AD) 产生生物气,但需要升级以去除H2S等杂质.
生物气升级可提高燃料质量,用于更广泛的应用.
微藻-细菌联盟为生物气体升级提供了一种可持续的方法.

研究的目的:

通过使用AD废水的微藻-细菌联盟来研究光合作用生物气的升级.
评估微生物对各种硫化 (H2S) 度 (0-10,000 ppmv) 的反应.
在现实的运营约束下评估联盟的弹性和功能稳定性.

主要方法:

在没有pH控制的情况下运行半连续的混合培养系统.
使用真正的无氧消化废水作为营养来源.
分析了微生物群落结构和生物气升级效率在不同的H2S水平.

主要成果:

有效的二氧化碳去除和氨去除 (>65%) 保持在5,000 ppmv H2S.
在适应滞后后,培养物在10,000 ppmv H2S下表现出弹性和部分恢复.
压力耐受性Parachlorella和特定细菌 (Fuscovulum, Mucilaginibacter, Paraburkholderia, Sphingomonas) 的占主导地位有助于稳定.

结论:

环境微藻-细菌联盟对于光合作用生物气的升级具有弹性和有效性.
这些联盟可以承受高度的H2S,证明了可持续生物气生产的潜力.
这些发现支持消化剂的价值化和强大的沼气升级技术的开发.

关键词:

厌氧消化剂是一种厌氧消化剂.生物气体净化净化方法硫化是一种硫化.微藻类是一种微藻类.移除营养物质移除营养物质帕拉克洛瑞拉 (Parachlorella) 是一种植物.光合作用碳固定的光合作用.

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