废水生物处理好氧污泥颗粒化研究进展

综述了好氧污泥颗粒化技术在废水生物处理中的研究进展，着重讨论了好氧颗粒污泥理化特性及微生物结构、污泥颗粒化主控因子、颗粒污泥形成机理及其应用潜力等方面的研究，旨在阐明多种工艺操作条件下好氧污泥颗粒化过程.好氧颗粒污泥是近年来发现的、在好氧条件下污泥自絮凝形成的固定化颗粒，其外形规则、结构致密、沉降性能优异、抗冲击负荷能力强.污泥颗粒化过程取决于基质组成与负荷、适当的水力选择压和工艺操作参数等因素.

Research Advance in Aerobic Sludge Granulation for Wastewater Biological Treatment

The fundamentals and applications of aerobic sludge granulation technology in wastewater biological treatment are reviewed. The aspects discussed include the general characteristics and microbial structure of aerobic granules, major factors influencing granulation, models of sludge granulation, and their applications. This review is hoped to elucidating a unified interpretation of the formation of aerobic granules under various operation conditions. Aerobic granules are self-immobilized aggregates of bacteria and have a regular and smooth round shape, compact microbial structure and good settling ability. Granulation is depending on the composition and loading of the substrate, appropriate hydraulic selection pressure and operation condition.