通过用海绵铁/铜和玉米组装的生物过器同时去除酸盐和酸盐的性能和机制

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Zhouying Xu¹, Wuyi Wang¹, Yubo Liu¹

¹School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, Hubei 430070, China.

Bioresource technology

|July 19, 2023

概括

用铜装饰的海绵铁 (SI/Cu) 有效地从水中去除酸盐和酸盐. 这种新型材料支持有益的微生物群落,增强生物过器中的水净化.

科学领域:

环境科学环境科学
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:

酸盐和酸盐污染对水质和生态系统健康构成重大风险.
海绵铁 (SI) 显示出消除污染物的潜力,但其有效性可以提高.
微生物合系统在水处理中的营养循环和污染物降解中起着至关重要的作用.

研究的目的:

调查铜改性海绵铁 (SI/Cu) 对于同时去除酸盐和酸盐的有效性.
探索利用SI/Cu.的生物过器中的微生物社区结构和功能基因丰度.
为了评估使用不同填充材料的生物过器的性能:玉米 (CC),玉米+海绵铁 (CS) 和玉米+海绵铁/铜 (CSCu).

主要方法:

建造和运行三个不同的生物过器 (CC,CS,CSCu).
对酸盐 (NO3--N) 和酸盐 (PO43--P) 度进行废水分析.
使用16S rRNA基因测序进行微生物社区分析.
量化与循环相关的功能基因.

主要成果:

该CSCu生物过器始终保持了废水NO3--N和PO43--P度分别低于1 mg/L和0.1 mg/L.
SI/Cu的引入丰富了Dechloromonas属,成为占主导地位的微生物群 (42.65%).
使用铜的修改显著增加了与循环相关的基因的丰富性,包括与CSCu相比,CSCu中的nirS增加了634%.

结论:

SI/Cu是一种非常有前途的材料,可以同时从水中去除酸盐和酸盐.
SI/Cu的增强性能与特定微生物群体的丰富以及关键功能基因的丰富性增加有关.
这项研究提出了一种可行的方法,用于开发有效的生物过器,以去除营养物质和净化水.

关键词:

功能性基因是指功能性的基因.微生物社区微生物社区亚酸盐和酸盐的去除方法固体碳来源固体碳来源铁/铜是海绵铁/铜的组成部分.

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