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电活性细菌和脱剂的相互共生,以改善耐火碳利用和酸盐减少

Xiangyu Yang¹, Mingchen Yao², Peng Li³

¹Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences 100085 Beijing, PR China; Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100 PR China; Key Laboratory of Marine Environment and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100 PR China; Section of Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology 2628 CN Delft, the Netherlands.

Environment international

|February 18, 2025

概括

电活性细菌和脱剂的共同培养增强了耐火碳降解和脱,同时减少了N2O排放. 这种共生为废水处理和减少污染提供了一种新的方法.

科学领域:

环境微生物学环境微生物学
废水处理技术废水处理技术
生物修复是一种生物修复.

背景情况:

废水处理废水往往含有耐火碳和残留,这给环境带来了挑战.
电活性细菌 (EAB) 和脱剂之间的相互共生是一种潜在的解决方案,但缺乏明确的共同代谢模型和对电子转移的理解.

研究的目的:

为了研究共同培养P. aeruginosa*菌株GWP-1 (EAB) 和G. sulfurreducens* (脱剂) 的协同效应,以改善废水处理.
阐明耐火碳降解和去除的机制,包括物种间电子转移 (IET).

主要方法:

在废水处理模拟中共同培养P. aeruginosa GWP-1和G. sulfurreducens.
使用同位素方法量化物种间电子转移 (IET).
测量耐火碳降解,脱率和N2O排放.

主要成果:

实现了耐火碳降解的3-5倍增加.
提高了40%的脱效率.
通过共同培养,减少了36.0%的N2O排放.
量化IET,显示*G. sulfurreducens*向*P. aeruginosa*提供更高的电子供应,与葡萄糖相比,纤维素的GWP-1更高.

结论:

在EAB和脱剂之间的相互共生有效地提高了废水中耐火碳和的去除.
在观察到的协同效应中,物种间的电子转移起着至关重要的作用.
这种共同培养策略为废水处理中的同时污染和碳减排提供了一个有希望的途径.

关键词:

脱化过程中的脱.电活性细菌是一种电活性细菌.相互的共生关系是相互的共生.耐火碳的碳是一种耐火碳.剩余的气是剩余的气

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