Research Advance in Aerobic Sludge Granulation for Wastewater Biological Treatment
废水生物处理好氧污泥颗粒化研究进展

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.