处理二次污泥的全尺寸无氧消化器的细菌多样性的变化
Sangmin Kim1, Chayanee Chairattanawat1, Eunji Kim1
1Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea.
Bioresource technology
|November 30, 2024
概括
从二次污泥 (2S) 的微生物迁移会影响无氧消化 (AD). 了解像Zoogloea和Dechloromonas这样的细菌运动是优化污泥管理和生物气生产的关键.
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.
- 废水处理 废水处理
背景情况:
- 二次污泥 (2S) 无氧消化 (AD) 面临着由于高微生物负载和复杂的细胞结构的挑战.
- 微生物社区动态和从2S迁移到消化器的迁移是影响AD表现的关键因素,但尚未研究.
研究的目的:
- 研究时空因素 (水温,饮食习惯) 对2S细菌群体的影响.
- 分析细菌从2S迁移到无氧消化器中的迁移模式.
- 了解迁移细菌对有机降解和AD整体效率的影响.
主要方法:
- 使用高通量热测序来分析细菌群落及其功能.
- 确定了2S和消化器环境中的细菌群体的时空变化.
主要成果:
- 观察到包括Zoogloea和Dechloromonas在内的特定细菌属迁移到消化器中.
- 佐格洛亚与去除挥发性固体 (VS) 有负相关性,可能是由于花形成.
- 德罗莫纳斯与VS去除呈正相关性,这表明它在厌氧酸盐代谢中起作用.
结论:
- 来自2S的微生物迁移是影响AD表现的重要因素.
- 与传统参数一起监测细菌群落对于优化AD至关重要.
- 结果为改善污泥管理和增加AD工厂生物气生产提供了实际策略.
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