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阳极材料对酸盐降解和微生物群体在三维电极生物膜反应堆中与硫酸盐的作用

Chunhong Jin¹, Qi Tang², Hengduo Xu¹

¹CAS Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.

|August 23, 2023

概括

涂有氧化的棒显著改善了三维电极生物膜反应器 (3D-BER) 中的酸盐和硫酸盐的去除. 这种阳极材料增强了抗腐蚀和微生物活性,以有效处理废水.

科学领域:

环境工程环境工程
电化学电化学电化学
微生物学微生物学

背景情况:

石墨棒腐蚀是三维电极生物膜反应堆 (3D-BER) 的一个主要问题.
从废水中有效地去除酸盐和硫酸盐对于环境保护至关重要.
阳极材料的选择影响了反应堆的性能和微生物社区的动态.

研究的目的:

研究不同阳极材料对3D-BER中酸盐和硫酸盐减少的影响.
为了评估涂有素氧化物涂层的杆阳极的电化学和生物电化学性能.
评估与新型阳极材料相关的抗腐蚀性能和微生物社区转移.

主要方法:

在3D-BER中比较杆,涂有氧化的杆和石墨棒作为阳极.
进行了电化学和生物电化学还原实验,以测量酸盐和硫酸盐去除效率.
使用主导细菌识别对微生物群落的分析.

主要成果:

在电化学还原过程中,涂有素氧化物的杆阳极 (3D-BER-T) 显示出稳定的酸盐-去除 (46%-95%).
与石墨阳极相比,3D-BER-T实现了较高的酸盐-N (92%) 和硫酸盐 (43%) 的去除效率,以及较高的选择性 (86%).
素氧化涂层显著增强了阳极抗腐蚀性,并改变了微生物群体,有利于食菌和Dethiobacter.

结论:

涂有氧化涂层的杆是3D-BER的优质阳极材料,克服了石墨腐蚀问题.
增强的阳极材料促进了酸盐和硫酸盐的协同电化学和生物电化学减少.
该研究强调了先进的阳极材料在强大高效的废水处理方面的潜力.

关键词:

阳极材料是一种阳极材料.脱化过程中的脱.微生物社区的微生物社区.亚酸盐是一种酸盐.硫酸盐是一种硫酸盐.三维电极生物膜反应堆的三维电极.

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