The sludge cake layer was reversibly removed through extended aeration without effluent, reduced sludge concentration or prolonged cease time of membrane filtration.

• 通过停止进出水维持空曝气、降低反应器内污泥浓度或延长膜的停抽时间可以使沉积在膜表面的悬浮污泥脱离膜表面，从而使膜过滤能力得到很好的恢复。