link to NC State University web page

link to Waste Management Programs page

Animal and Poultry Waste Management Center
A candidate technology of the North Carolina Agreements Project:
Development of Environmentally Superior Technologies
per Agreements Between the Attorney General of North Carolina
and Smithfield Foods, Premium Standard Farms and Frontline Farmers

Ultrasonic Plasma Resonator

The Ultrasonic Plasma Resonator System is designed to treat the liquid waste stream from a pig farm by combining gases, such as oxygen and ozone, with mechanical cavitation in the presence of a vacuum and the projection of ultrasonic energy at certain frequencies within a certain geometrically shaped vessel, resulting in high pressure and temperature treatment of the liquid wastes. This high pressure, high temperature treatment should decompose waste more quickly than other methods and require less space.

A pilot system is being assembled in Germany and is scheduled to be constructed at North Carolina State University's Lake Wheeler Road Field Laboratory sometime between July and September 2004. More information about the system is available at

Technology Evaluation

Michael Overcash
Department of Chemical Engineering
North Carolina State University
Raleigh, NC 27695-7625
phone: (919) 515-2325

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