supported by the National Natural Science Foundation of China (No.50708089);the Program for Changjiang Scholars and Innovative Research Team in University of MOE of China (PCSIRT) (No.IRT0853);the Natural Science Foundation of Shaanxi Province (No.2009JQ7002);the Research Plant for Key Laboratoryof Universities of Shaanxi Province (No.09JS027)
Proliferation of filamentous microorganisms frequently leads to operational failure for activate sludge systems. In this study, it was found that filamentous microorganisms could grow in compact granular structure wit...