藻类-细菌颗粒性污泥的现场培养和工艺动态在连续流动的自循环反应堆中
Wei-Kang Qi1, Yu-Ge Sun1, Ming-Ming Zhang1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.
Bioresource technology
|January 6, 2026
概括
这项研究使用齐尔工艺开发了高能效的藻类-细菌颗粒污泥 (ABGS),实现了化学氧气需求和氨的高去除. 该系统表现出稳定的性能和出色的沉降性,为废水处理提供了可扩展的解决方案.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
- 生物技术是生物技术.
背景情况:
- 传统的活性污泥工艺面临着污泥沉降能力和营养物质去除效率方面的挑战.
- 开发用于同时去除有机物和的综合系统对于可持续的废水管理至关重要.
- 藻类-细菌颗粒污泥 (ABGS) 具有提高性能和降低运营成本的潜力.
研究的目的:
- 在现场从状活性污泥中培养藻类-细菌颗粒污泥 (ABGS).
- 评估用于废水处理的连续流动自循环反应堆 (齐尔工艺) 的性能.
- 阐明ABGS系统中驱动颗粒和营养物质去除的机制.
主要方法:
- 在连续流动的自循环反应堆 (齐尔工艺) 中长达180天的ABGS培养.
- 监测化学氧气需求 (COD) 和氨 (NH4+-N) 清除效率.
- 污泥特性分析,包括颗粒大小分布和沉降性 (SVI30).
- 研究藻类-细菌协同作用和细胞外聚合物质 (EPS) 组成.
主要成果:
- 实现了稳定有效的COD (95%) 和NH4+-N (90%) 的去除.
- 氨的去除归因于化细菌 (≈52.1%) 和藻类同化 (≈47.9%).
- 该系统表现出优异的污泥沉降性 (SVI30 ≈40 mL/g) 和31%的颗粒大小 (>0.2 mm) 的增加.
- 藻类-细菌协同作用和蛋白质主导的EPS被确定为颗粒化的关键因素.
结论:
- 齐尔工艺成功培养了ABGS,证明了稳定高效的废水处理.
- 藻类-细菌协同作用在营养物质的去除和颗粒化中起着至关重要的作用,即使存在物种间的竞争.
- 这种连续流量ABGS系统的节能,可扩展的潜力为实际应用提供了理论基础.
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