Environment - Air
Evaluation of Boric Acid and Sodium Tetraborate to Reduce Ammonia and Hydrogen Sulfide Emissions from Swine Facilities
March 27, 2006By Melvin Yokoyama
The experimental results of the first year of this study clearly demonstrates that boron, in the form of boric acid and sodium tetraborate (borax) is very effective in inhibiting the emissions of...
Environment - Water Usage / Conservation
Pathogenic and Indicator Bacteria in Agricultural Watersheds
March 8, 2006By Thomas Moorman
Escherichia coli and Enterococcus are indicator bacteria that were measured in Iowa streams that drain land with different levels of swine production. We completed a study monitoring=g these bacteria...
Environment - Air
Air Emissions Monitoring Protocol
January 23, 2006By Steven Hoff PhD
H2S concentrations measured at the perimeter of nine swine operations across the state indicated that for the sizes of operations investigated with this study, the dominating influence on perimeter...
Environment - Manure Storage / Application
Free fatty acids and sterols in swine manure
January 1, 2006By Loughrin
Free fatty acids and sterols were assessed in fresh manure and anaerobic lagoon sludge from swine production facilities in North Carolina. Eight free fatty acids and five sterols were identified and...
Environment - Manure Storage / Application
Disposal of Swine Lagoon Sludge with Nutrient Recovery
December 21, 2005By M. Todd See
Gasification offers many advantages for processing undesirable waste materials. Tests on gasifier emissions reveal very low levels of NOx, SOx and volatile organic carbons in the flue gas, well...
Environment - Manure Storage / Application
Disposal of Swine Lagoon Sludge with Nutrient Recovery
December 21, 2005By Dr. M. Todd See
Sludge accumulation in lagoons reduces their treatment efficiency over time
and, ultimately, may cause the decommissioning of the lagoon. Gasification is an ideal
technology for sludge disposal since...
Environment - Air
DESIGN SPECIFICATION FOR A VERTICAL BED BIOFILTER
July 31, 2005By Richard Nicolai
A vertical biofilter may be a good option for reducing odor and gas emission when not enough space is available to install a horizontal biofilter. The vertical biofilter is cylindrical with the...
Environment - Air
Reduction of Ammonia, Methane, and Carbon Dioxide Emissions from Swine Waste by Dietary Manipulation
June 17, 2005By Scott Carter
The public concern related to the potential for water and air pollution from swine facilities demands that alternative management practices be developed. Dietary manipulation offers a potential...
Environment - Air
Comparative Analysis of Odor Evaluation and Aerosol Monitoring Techniques
February 21, 2005By Robert von Bernuth
Relative to this project, what one really wants to know about a swine facility is whether odor from the unit can be predicted, how good the prediction would be, and how difficult it will be to...
Environment - Air
A Planning Tool for Assessing the Relative Contribution of Facility Components to Air Quality Surrounding Pork Production Sites
January 20, 2005By Dennis D. Shulte
This National Pork Board project resulted in new odor planning tools called “odor roses” and “odor footprints” that provide visual representation of the frequency, direction and extent of...
