In the 'Ozone'

Clemson professor says ozone can help diminish animal waste problems. Compiled by staff

Published on: Jul 12, 2004

A professor at Clemson University has invented and patented a process using ozone that can help clean animal lagoon wastewater while reducing odor.

Cornell Greene, a Clemson professor of animal and veterinary sciences, uses ozone generators in her research. She has developed a multi-stage ozone treatment that helps oxidize and break down animal waste.

Handling animal waste is a big problem in the Southeast and the flexibility of her process could offer some great benefits. It has been used to treat dairy, swine and poultry waste at Clemson.

"Animal waste disposal from confined animal feeding operations poses serious challenges for farmers," Greene says. "Odors from animal waste cause public outcry and wastewater can be a haven for fecal microorganisms, including many potential pathogens. Organic-laden manure has been involved in non-point source pollution of rivers and streams."

Ozone releases oxygen that in turn reduces the organic components of the lagoon waste, killing bacteria and reducing bad smells through a process called oxidation.

Greene says ozone generators are more efficient than they've ever been before and are becoming increasingly efficient with time. That means the cost is likely to continue to decrease.

For more information on Greene's ozone process, visit the Clemson News Web site.