基于盐-微生物相互作用机制的各种盐管理:技术盐减少策略
Xiong Ke1, Heng Zhang1, Xiaoqian Cheng1
1School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.
Journal of environmental management
|March 8, 2025
概括
盐度波动会影响废水处理中的微生物污染物降解. 一个有氧过程 (氧 - 水解和异脱 - 氧) 显示出更强的抗盐应激性,使得有效的技术盐的减少.
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
- 工业废水管理 工业废水管理
背景情况:
- 盐度显著影响水处理中的微生物污染物降解.
- 关于工业废水中盐度与微生物相互作用的研究有限.
- 焦化废水处理为本研究提供了一个相关的案例研究.
研究的目的:
- 探索度,微生物群落和焦化废水中的污染物清除之间的关系.
- 提出并验证一项技术,减少盐的战略.
- 了解不同盐度条件下的微生物社区动态.
主要方法:
- 在废水处理过程中对污染物共去除的分析.
- 监测微生物群落 (Ottowia/Diaphorobacter,Alicycliphilus/Pseudomonas,Nitrosomonas/Nitrospira) 对盐度变化的反应.
- 评估微生物系统稳定性和迁移率在有氧和无氧/无氧单位.
- 使用Beta最接近的分类体指数来评估微生物社区在氧化-水解和异性脱-氧化 (OHO) 过程中的组合.
主要成果:
- 观察到污染物的共同去除.
- 盐度的变化最初影响了去和去的微生物.
- 有氧单位表现出更高的适应能力 (R2 = 0.8214) 盐应激比无氧/无氧单位 (R2 = 0.2129).
- 在OHO过程中,由于随机微生物组合,OHO过程对盐度波动具有弹性.
- 盐度增加影响了去除途径:化 > DNR > 脱化 > 无氧无氧化.
结论:
- OHO过程提高了微生物社区对废水处理中的盐度变化的弹性.
- 通过A-OHO过程实施的技术盐减少策略得到了科学验证.
- 微生物减少盐的功能对于优化工业废水处理技术至关重要.
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