连续流好氧颗粒污泥的研究进展

Research progress of continuous flow aerobic granular sludge

好氧颗粒污泥技术由于其沉降性能好、污水处理高效、占地面积小、适合污水厂改造等优势成为当前研究重点.目前大部分研究都是通过序批式反应器来培养好氧颗粒污泥,对于在连续流式系统下培养颗粒污泥的研究较少.本文综述了连续流好氧颗粒污泥最新研究进展,对选择压力、水力剪切力、胞外聚合物等造粒主要影响因素和有机负荷、温度、金属离子等颗粒稳定因素作了详细的讨论.最后,提出了好氧颗粒污泥的新研究方向,以期为培养和实现连续流好氧颗粒污泥提供有价值的参考与借鉴.

The aerobic granular sludge technology has become a research focus due to its advantages such as good settling performance,high efficiency in wastewater treatment,small footprint,and suitability for sewage plant upgrades.Currently,most research involves cultivating aerobic granular sludge using sequencing batch reactors,with limited studies on granular sludge cultivation in continuous flow systems.This paper reviews the latest research progress on continuous flow aerobic granular sludge,and discusses in detail the main influencing factors of granulation such as selection pressure,hydraulic shear force,extracellular polymers,as well as particle stability factors including organic load,temperature,and metal ions.Finally,new research directions are proposed for aerobic granular sludge,providing valuable references and insights for the cultivation and realization of continuous flow aerobic granular sludge.