Iowa Public Television


Reducing Smell Of Hog Manure With Ultrasound

posted on August 23, 2002

"Ah, the sweet smell of success." From hogs?

University of Iowa researchers say they've found a way to reduce the stench of hog manure by 50% … with the use of ultrasound.

Acoustic waves generated by titanium tubes vibrating 20,000 times per second penetrate the manure, breaking chemical bonds and triggering chemical reactions that alter the typical decomposition process.

A large-scale test is underway at a 13-hundred head hog confinement barn. A panel of professional smell testers will judge the effectiveness of the technology.

Tags: agriculture animals livestock manure news pigs pork technology