揭示了硫铁合机制,用于在生态浮动床上增强自营性脱
Feng Xu1, Yuanyuan Peng1, Xushun Gu1
1School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
Bioresource technology
|May 11, 2024
概括
将铁添加到基于硫的生态浮动床 (EFB-S) 显著增加了脱. 这种硫铁合增强了废水处理中的去除,对低污染水有效.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 微生物生态学 微生物生态学
背景情况:
- 基于硫的生态浮动床 (EFB-S) 用于脱.
- 提高EFB-S的脱能力对于有效的废水处理至关重要.
- 合不同的材料可能会提高EFB的性能.
研究的目的:
- 开发一种与硫铁合的生态浮床 (EFB-SFe),以增强脱.
- 研究EFB-SFe.的脱性能,动力学和微生物群体.
- 评估硫铁合在处理低污染水的潜力.
主要方法:
- 开发一种与硫铁合的生态浮床 (EFB-SFe).
- 评估脱性能,包括总去除率和效率.
- 对运动过程和微生物群落组成的分析.
- 量化脱基因的量化.
主要成果:
- 与单个组件相比,硫铁合显著提高了脱性能.
- 总去除率在1.56至4.56g·m−2·d−1之间,效率为22-84%.
- 在EFB-SFe组中,脱率常数 (k) 显著增加.
- 观察到致细菌 (Thiobacillus,Ferritrophicum) 的丰富和致基因的上调 (12 - 22 倍高).
- 硫和铁自性脱被确定为关键的去除途径.
结论:
- 硫铁合是一种有前途的策略,可以提高生态浮动床的脱能力.
- EFB-SFe在除方面表现出卓越的性能,特别是在低污染的废水中.
- 这项研究强调了硫和铁在自otrophic 脱化中的协同效应.
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