超高效率的同时化,脱化和从消化中心中去除,使用加增强的有氧颗粒污泥
Lu Kong1, Huijuan Sun2, Ying Liu1
1School of Civil & Environmental Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia.
Water research
|January 17, 2026
概括
在有氧颗粒污泥 (AGS) 反应堆中添加可以促进废水同时去除和. 这种具有成本效益的方法增强了颗粒的稳定性和微生物活动,以实现高效的营养循环.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 废水处理 废水处理
背景情况:
- 高强度消化中心酸对由于低碳可用性而导致的营养物质去除存在挑战.
- 同时化,脱化和除 (SNDPR) 对于高效的废水处理至关重要.
- 有氧颗粒污泥 (AGS) 技术为处理具有挑战性的废水提供了潜力.
研究的目的:
- 研究一种加增强的AGS策略,用于从高强度,碳有限的集中物中获得超高SNDPR.
- 评估临时加 (Ca2+) 对颗粒稳定性,微生物群落和营养物质去除效率的影响.
- 评估短期Ca2+暴露对营养物质去除性能的长期益处.
主要方法:
- 长期运行 (320天) 的AGS反应堆处理高强度中心酸盐 (∼950毫克/升NH4+-N,150毫克/升PO43−-P) 在低C/N比率 (0.2).
- 在操作期间临时添加Ca2+ (200 mg/L).
- 监测营养物质去除效率 (氨,总无机,).
- 对微生物群落和细胞外聚合物质 (EPS) 的分析.
主要成果:
- 在补充Ca2+期间,AGS反应堆实现了99%的氨去除,97%的无机去除,超过80%的去除.
- Ca2+的添加改善了颗粒的完整性,丰富了关键的功能性微生物群 (例如,Dechloromonas,Nitrosomonas),并增强了生物和化学去除.
- 在Ca2+退出后,反应堆保持了97%以上的去除,并且在摄入量增加了2.5倍,持续了130天.
结论:
- 短期Ca2+增强是一种实用,低成本的策略,用于提高高强度,低C/N比率废水中的AGS稳定性和SNDPR性能.
- 增强的营养物质去除归因于改善的颗粒结构,丰富的功能微生物和增加的EPS.
- 这种方法为有效的侧流废水处理提供了一个可扩展的解决方案.
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