强化好氧颗粒污泥稳定性的研究进展

系统回顾了有关好氧颗粒污泥稳定性方面的研究进展，简要介绍了好氧颗粒污泥的形成机理，主要包括“丝状菌假说”、“胞外聚合物假说”、“选择压驱动假说”、“自凝聚假说”；着重分析了影响好氧颗粒污泥稳定性的主要因素有温度、pH值、有机负荷率与氨氮浓度、溶解氧与颗粒粒径、饱食-饥饿期、水力剪切力、污泥龄和有毒有害物质等；详细论述了抑制丝状膨胀、促进胞外聚合物的分泌、富集慢速增长的微生物和强化颗粒内核等措施可以强化好氧颗粒污泥的稳定性，并提出了对好氧颗粒污泥的形成机理以及功能菌群进行更深入的研究将会是今后的研究重点，进而为好氧颗粒污泥的工业化应用作铺垫。

Research advances in aerobic granule stability enhancement

This paper reviewed recent advances in aerobic granular sludge stability.The granulation mechanisms were introduced，including “fungi-enwind”，“EPS enhanced granulation”，“Selective pressure driven hypothesis”，“microbial self-immobilization”. The effects of temperature，pH，organic loading rate，influent ammonia nitrogen concentration，dissolved oxygen，particle size，feast-famine，hydrodynamic shear force，sludge retention time，toxicant were analyzed for aerobic granule stability. The aerobic granules stability enhancements including suppressing filamentous outgrow，enriching the content of EPS，promoting slow-growing organisms and strengthening granule core were discussed，Finally，future study on the granulation mechanism and the main functional strains were proposed for industrial application.