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使用基于的膜生物膜反应器并行降解酸盐和p-甲的生物降解

Bo Chen¹, Kun Dong¹, Yufeng Xu^1,2

¹College of Environmental Science and Engineering, Guilin University of Technology, Guilin, People's Republic of China.

Environmental technology

|September 20, 2023

概括

这项研究引入了一种新的生物修复技术,使用带的膜生物膜反应器 (MBfR) 来有效地从水中去除有毒的p-甲 (4-BP) 和酸盐.

科学领域:

环境科学环境科学
微生物学微生物学
化学工程是化学工程的重要组成部分.

背景情况:

甲 (4-BP) 是一种有毒的化有机化合物,对传统的水处理提出了挑战.
现有的去除4-BP的方法往往是低效的,昂贵的,并且难以完全矿化.

研究的目的:

为了研究膜生物膜反应器 (MBfR) 的有效性,利用作为4-BP降解的电子供体.
阐明在特定操作条件下涉及4-BP去除的降解途径和微生物群体动态.

主要方法:

使用供应膜生物膜反应器 (H2-MBfR) 处理受4-BP和酸盐污染的水.
进行了长期的运行实验,对酸盐和4-BP度以及的部分压力进行了变化.
使用16S rRNA基因测序分析了微生物社区的多样性.

主要成果:

实现了快速和完整的去除 (大约. 100%) 的4-BP高达20毫克/升,中间积累最小.
在无氧条件下,同时降低了10mg/L的酸盐.
确定了*Thauera*作为负责4-BP降解的主导基因,增强了相关酶基因表达.

结论:

H2-MBfR系统为4-BP和酸盐等共污染物提供了一种高效,成本效益和环保的生物修复策略.
微生物降解,特别是Thauera,在这种无氧系统中去除4-BP中起着至关重要的作用.
这种方法为处理受污染的水体提供了一个有希望的解决方案.

关键词:

基于的膜生物膜反应器.这是一种P-基醇.社区分析社区分析脱化除化降解途径的降解途径

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