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通过添加生物炭和炭来增强微生物燃料电池扩展颗粒型污泥床,用于处理含硫酸盐的废水:性能和潜在机制

Shenglong Chen¹, Yuan He², Qiuhong Li²

¹Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 15 Yucai Road, Guilin 541004, PR China; University Engineering Research Center of Green Remediation and Low Carbon Development for Lijiang River Basin, Guangxi, 15 Yucai Road, Guilin 541004, PR China; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 15 Yucai Road, Guilin 541004, PR China.

Bioresource technology

|August 3, 2025

概括

这项研究使用微生物燃料电池扩展颗粒型污泥床反应堆中的生物炭和炭增强了硫酸盐的去除. 这些材料提高了效率,并提供了关于它们在废水处理中的强化机制的见解.

科学领域:

环境科学环境科学
环境工程环境工程
生物技术是生物技术.

背景情况:

污水处理经常面临硫酸盐去除的挑战.
微生物燃料电池 (MFC) 为污染物降解提供了一个有希望的方法.
扩展颗粒污泥床 (EGSB) 反应器在处理工业废水方面非常有效.

研究的目的:

研究生物炭和炭对MFC-EGSB系统中硫酸盐去除效率的影响.
探索生物炭和炭增强MFC-EGSB性能的潜在机制.
为了比较生物炭和炭对化学氧气需求 (COD) 移除和微生物活动的影响.

主要方法:

将微生物燃料电池 (MFC) 集成到扩展颗粒污泥床 (EGSB) 反应堆中.
在MFC-EGSB系统中添加生物炭和炭.
监测硫酸盐和化学氧需求 (COD) 的去除效率.
分析与甲基生成相关的关键酶活动.
定量的相对丰富的腺硫酸减少酶基因.

主要成果:

在MFC-EGSB系统中,添加生物炭和炭都提高了硫酸盐去除效率.
平均COD去除效率达到94.7%与生物炭和94.1%与炭.
与生物炭相比,水炭在甲基生成酶活动中表现出更显著的改善.
腺硫酸盐还原酶基因的相对丰度随着生物炭和炭的添加而增加.

结论:

生物炭和炭有效提高MFC-EGSB反应堆的硫酸盐和COD去除性能.
这些材料影响微生物的过程,包括甲基生成和硫酸盐的减少.
该研究为废水处理的MFC-EGSB系统中生物炭和炭的机制提供了宝贵的见解.

关键词:

功能性微生物功能性微生物关键的基因关键的基因在MFC-EGSB系统中.代谢途径的代谢途径硫酸盐废水处理系统的废水处理

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