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同步增强色剂脱色和无氧颗粒污泥稳定性由Fe,N联合修改的生物炭:基于细胞外电子转移的增强

Longyi Lv¹, Bingbing Yin¹, Duoying Zhang²

¹Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China.

Journal of hazardous materials

|September 14, 2024

概括

铁和共同修改的生物炭 (FNC) 增强了亚染料废水的无氧消化 (AD). 通过促进电子转移和保护微生物群落,FNC提高了脱色和污泥稳定性.

科学领域:

环境科学环境科学
生物技术是生物技术.
材料科学材料科学材料科学

背景情况:

无氧消化 (AD) 在处理染料废水时,与低效率和不稳定性作斗争.
亚染料由于其持久性和毒性,给环境带来了重大挑战.
提高AD过程的稳定性和效率对于有效的废水处理至关重要.

研究的目的:

调查铁和共修改生物炭 (FNC) 的使用,以通过AD改善染料废水处理.
阐明FNC提高脱色效率和污泥稳定性的机制.
评估FNC在AD期间对微生物社区结构和功能的影响.

主要方法:

使用二次化方法合成铁和共同修改生物炭 (FNC).
刚果红色废水有或没有FNC的无氧消化试验设置.
分析脱色效率,甲生产,细胞外聚合物质 (EPS) 含量和微生物群落组成.

主要成果:

FNC显著提高了刚果红色的脱色效率,并改善了AD性能,包括甲生产.
添加FNC维持了稳定的细胞外聚合物物质 (EPS) 含量和蛋白质比例,保护微生物群体免受染料毒性影响.
FNC促进了微生物细胞外电子转移,作为电子转移桥梁,促进了直接的物种间电子转移 (DIET).

结论:

FNC是一种有前途的材料,可以增强亚染料废水的无氧消化处理.
提升的性能归因于FNC的电化学特性,这些特性改善了电子传输和污泥稳定性.
这项研究提供了一种新的方法,可以有效和稳定地处理废水中的强硬有机污染物.

关键词:

无氧颗粒污泥是一种无氧颗粒污泥.阿佐染料降解降解方式 CH ((4)) 的情况.电子转移是指电子的转移.在FNC的FNC.

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