微生物诱导的沉对在有机污染物不同摩尔体积下细菌的多重影响
Xinjie Wang1, Xue Li1, Junfeng Su1
1School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
Journal of environmental management
|September 19, 2024
概括
微生物诱导的沉 (MICP) 根据大小选择性吸附有机污染物. MICP还封装了细菌,增强了废水处理中的碳和去除.
科学领域:
- 环境微生物学 环境微生物学
- 生物地质化学生物地质化学
- 水处理技术水处理技术
背景情况:
- 微生物诱导的沉 (MICP) 是一种有前途的水处理方法.
- 对于MICP对有机污染物选择性吸附和细菌代谢的影响的了解有限.
- 研究MICP对各种有机污染物和细菌反应的影响至关重要.
研究的目的:
- 研究MICP生物沉物对有机污染物的选择性吸附.
- 阐明有机污染物对细菌代谢,细胞外聚合物质 (EPS) 生产和MICP的影响.
- 了解MICP如何影响细菌自我保护机制和整体废水处理效率.
主要方法:
- 对,双A (BPA) 和四环素 (TC) 的细菌代谢和去除效率的比较分析.
- 对有机污染物具有不同摩尔体积的生物沉物吸附能力的评估.
- 在不同的有机污染物条件下监测EPS生产和气减少.
主要成果:
- 生物沉物表现出有机污染物的选择性吸附,与其摩尔体积相关.
- 有机污染物刺激细菌增加EPS的产生,这是细菌的自我保护反应.
- 由于EPS的表面特性促进了MICP,导致细菌封装,并通过生物矿物化增强了碳和的去除.
结论:
- MICP生物沉物显示有机污染物的选择性吸附能力.
- 在废水处理中,MICP通过调节细菌活动和增强生物矿物化,发挥了多方面的作用.
- 这项研究为生物沉物的选择性吸附特性及其对水处理中的细菌群落的综合影响提供了新的见解.
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