好氧颗粒污泥颗粒化到稳定性的研究进展

Research Progress of Aerobic Granular Sludge from Granulation to Stability

好氧颗粒污泥具有结构致密、抗冲击能力强、沉降性能优、生物活性高等特点,在污废水处理领域具有独特的优势。能用于处理高浓度有机废水、高含盐度废水及许多工业废水。但好氧颗粒污泥存在颗粒化困难、颗粒稳定性差两大难题,制约了其工业化普及的进程。本文从污泥颗粒化影响因素、快速造粒的方法和颗粒稳定性的影响因素、提高污泥稳定性的策略进行综合阐述,提出了目前存在的问题以及未来发展趋势。

Aerobic granular sludge has the characteristics of compact structure,strong impact resistance,good sedimentation performance and high biological activity.It has unique advantages in the field of wastewater treatment,and can be used to treat high concentration organic wastewater,high salinity wastewater and many industrial wastewaters.However,aerobic granular sludge has two problems:difficulty in granulation and poor stability of granules,which restrict the process of its industrialization and popularization.In this paper,the influencing factors of sludge granulation,the methods of rapid granulation,the influencing factors of particle stability,and the strategies for improving sludge stability are comprehensively described,and the existing problems and future development trends are proposed.