带有磁性生物炭核心的性有氧颗粒:用于快速形成和增强结构稳定性的新策略
Dong-Xu Zhou1, You-Wei Cui1, Ya-Nan Mi1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China.
Bioresource technology
|July 18, 2025
概括
磁性生物炭 (MBC) 加快了用于高盐废水处理的性有氧颗粒污泥 (HAGS) 的形成和稳定性. 通过抑制真菌过度生长,MBC减少了启动时间,并防止了颗粒的分解.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 性有氧颗粒污泥 (HAGS) 对于高盐废水处理是有效的,但由于长时间的启动时间和颗粒的不稳定性而受到影响.
- 现有的局限性阻碍了HAGS技术的广泛应用.
研究的目的:
- 评估生物炭和磁性生物炭 (MBC) 作为载体,以加速HAGS形成并增强颗粒稳定性.
- 研究MBC对微生物活动,细胞外聚合物质 (EPS) 生产和微生物多样性的影响.
主要方法:
- HAGS被培养有或没有生物炭和MBC作为载体.
- 分析了微生物代谢活动,EPS分泌和微生物多样性.
- 丝状真菌的丰富性使用qPCR量化.
主要成果:
- MBC显著减少了HAGS启动时间,并改善了运营稳定性.
- MBC核心的HAGS显示微生物代谢活性增强,EPS分泌量增加,微生物多样性更大.
- 在MBC中的Fe3O4抑制了线状真菌的过度生长,使其丰富度从2x10^10减少到3x10^8副本/g干泥.
结论:
- 磁性生物炭是优化高盐废水处理HAGS性能的一个有希望的策略.
- 通过缓解真菌过度生长,MBC加速颗粒形成,增强稳定性,并确保可靠的应用.
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