A Novel Rotating Disk System for Disintegration of Excess Sludge

Table 1

Disintegration effect of rotating disk system and ultrasonic system with different treatment manner.

Treatment manner	SCOD concentration (mg/L)	Parameter
No treatment	1300
45 min by rotating system	6570	69.6%
45 min by ultrasonic system	6902	74.0%
35 min by rotating system combined with 10 min by ultrasonic system	7450	81.2%
15 min by rotating system combined with 10 min by ultrasonic system	6960	74.8%