混合碳来源对高盐脱化中的微生物功能和网络结构的影响
Minkyu Choi1, Junbeom Jeon2, Suin Park3
1Environmental Evaluation Center, Korea Dyeing and Finishing Technology Institute (DYETEC), Daegu 41706, Republic of Korea.
Bioresource technology
|March 8, 2025
概括
混合碳来源 (葡萄糖,甲醇,酸) 提高了盐水废水中的脱效率,而不是仅使用葡萄糖. 这种微生物策略改善了在高度条件下的去除和运行稳定性.
科学领域:
- 环境微生物学 环境微生物学
- 水处理工程水处理工程
背景情况:
- 脱对于从废水中去除来说至关重要.
- 超度条件对微生物废水处理提出了挑战.
- 优化碳来源是提高脱效率的关键.
研究的目的:
- 为了比较两个碳来源的脱性能:单纯的葡萄糖 (G) 和葡萄糖,甲醇和酸 (GMS) 的混合物.
- 评估碳来源对微生物群落结构和功能在盐水废水处理中的影响.
- 为在高盐条件下微生物脱提供工程见解.
主要方法:
- 两个脱系统 (G和GMS) 使用合成盐水废水运行.
- 监测了去除,有机去除和运行稳定性.
- 微生物社区的组成是使用测序来分析的.
- 功能性基因预测使用PICRUSt (通过重建未观察到的状态来对社区进行基因基因调查) 进行.
- 使用并发网络分析来评估微生物相互作用.
主要成果:
- 这两种系统都实现了高达80g-NaCl L-1的优异去除.
- 该GMS系统表现出卓越的运行效率和稳定的酸盐去除,特别是在低C/N比率为3的情况下.
- 在GMS系统显示较高的有机去除,归因于Marinobacter spp.的丰富.
- 皮克鲁斯特分析预测GMS系统中脱基因 (酸盐和酸盐减少酶) 的增加.
- 同时发生的网络分析表明,在GMS系统中,微生物群落更加多样化,网络结构更加稳定.
结论:
- 与单独使用葡萄糖相比,混合碳源 (GMS) 在高盐废水中显著提高了脱性能和稳定性.
- 该GMS系统培养了一个更强大的微生物群落,增加了无化潜力.
- 这项研究为设计用于盐水环境的有效微生物脱系统提供了宝贵的工程见解.
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