Ultrasonic solubilization of return activated sludge to reduce excess sludge production KU Leuven
Conventional biological wastewater treatment results in the generation of a considerable amount of excess sludge that has to be wasted. Technologies that are able to reduce sludge quantities are, therefore, of large interest. Sludge disintegration methods, like ultrasonic treatment, are considered to be very promising for reducing the amount of sludge to be disposed when applied in the sludge recycle line of the wastewater treatment plant. ...