多策略康复增强了单阶段部分化/安纳莫克斯反应堆中的去除
Xinyu Wan1, Zhicheng Zhao1, Yunpeng Zhao1
1National Engineering Research Center of Eco-Environment in the Yangtze River Economic Belt, China Three Gorges Corporation, Wuhan 430014, PR China.
Environmental research
|January 23, 2026
概括
恢复不稳定的单阶段颗粒部分化-亚纳摩克斯 (PNA) 反应堆至关重要. 这项研究表明,直接控制空气流和添加素可以有效地恢复性能并增强去除.
科学领域:
- 环境工程 环境工程
- 微生物生态学 微生物生态学
背景情况:
- 一级颗粒部分化-亚纳摩克斯 (PNA) 是一种低碳废水处理技术.
- 由于微生物社区的转移,不稳定的性能阻碍了PNA的应用.
研究的目的:
- 为了修复一座破损的颗粒污泥PNA反应堆.
- 确定长期恢复业绩的实际运营策略.
主要方法:
- 实施了直接的空气流速控制,绕过了溶氧 (DO) 监测.
- 在长时间内引入外源氨酸 (N2H4).
- 监控的总去除率和效率.
主要成果:
- 总去除率从0.2增加到0.8公斤N m-3 d-1.
- 去除效率达到了80%.
- 观察到酸盐氧化细菌 (NOB) 的抑制和增强的anammox活性.
- 增强的粒度在补充氨酸后持续存在.
结论:
- 直接空气流控制在抑制颗粒污泥PNA中的NOB方面优于DO.
- 外源水有效地康复PNA反应器,促进颗粒和anammox活动.
- 针对微生物生态系统属性的实际控制策略提供了可持续的废水处理解决方案.
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