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The ultrasound is an emerging and promising cell disintegration technology for waste sludge treatment. The frequency of ultrasound applied is 20 kHz or greater. It produces “cavitation” with microbubbles in liquid medium and causes intensive shearing phenomena and generation of free radicals for the enhancement of sludge disintegration. Ultrasound can be easily combined with the biological treatment units in wastewater treatment process to provide a simple and effective solution for waste sludge reduction with small footprint and substantial cost reduction.

Applications

1. Sludge reduction - Combined with aerobic biological treatment

2. Sludge reduction/ bioenergy production - Combined with anaerobic biological treatment

Full-sacle case

Features
•High sludge reduction
•High sludge disintegration
•Improvement in biodegradability
•Short hydraulic retention time
•Increase biogas production
•No chemical addition

Dr. Shing-Der Chen
Tel: 886-3-5732651
Fax:886-3-5732349
Email: sdchen@itri.org.tw