Dewatering treatment of residual activated sludge by ultrasound
The dewatering of residual activated sludge are investigated by ultrasound and the sludge dewatering ratio is obtained at low electric power（50 W）and short time（7 min）.The best dewatering is increased by 16%（compared with without ultrasound treated）.Acid sludge after ultrasound treatment is favorable to dewatering and the best dewatering is increased 23%（compared with that of the rude sludge）.Polyacry lamide（PAM） and ultrasound are favorable to dewatering,but the dewatering ratio is only 16%.
万方数据
维普
