关键词: 好氧颗粒污泥, 丝状膨胀, 水力剪切力, 胞外多聚物

Abstract: 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.

Key words: aerobic granular sludge, filamentous outgrowth, hydrodynamic shear force, extracellular polymeric substances