Reduction of ammonia emissions from treated anaerobic swine lagoons
January 1, 2002By Ariel A. Szögi
There is a need for treatment technologies that can effectively address environmental concerns associated with manure in confined animal production, including accurate assessment of their...
Antibiotic-resistant enterococci and fecal indicators in surface water and groundwater impacted by a concentrated swine feeding operation
January 1, 2002By A.R. Sapkota
BACKGROUND: The nontherapeutic use of antibiotics in swine feed can select for antibiotic resistance in swine enteric bacteria. Leaking swine waste storage pits and the land-application of swine...
Characterizing ammonia emissions from swine farms in eastern north carolina: Part 1-conventional lagoon and spray technology for waste treatment
January 1, 2002By Aneja Viney P.
Ammonia (NH3) fluxes from waste treatment lagoons and barns at two conventional swine farms in eastern North Carolina were measured. The waste treatment lagoon data were analyzed to elucidate the...
Effect of liquid swine manure rate, incorporation, and timing of rainfall on phosphorus loss with surface runoff
January 1, 2002By B.L. Allen and A.P. Mallarino
Excessive manure phosphorous (P) application increases risk of P loss from fields. This study assessed total runoff P (TPR), bioavailable P (BAP), and dissolved reactive P (DRP) concentrations and...
Nutrient Transport as Affected by Rate of Overland Flow
January 1, 2002By John E. Gilley
Little information is currently available concerning the effects of varying flow rate on nutrient transport by overland flow. The objective of this study was to measure the effects of overland flow...
Quality-assured measurements of animal building emissions: Particulate matter concentrations
January 1, 2002By Heber A
Federally funded, multistate field studies were initiated in 2002 to measure emissions of particulate matter (PM) < 10 mu m (PM10) and total suspended particulate (TSP), ammonia, hydrogen sulfide,...
Solid-liquid separation of flushed swine manure with PAM: effect of wastewater strength
January 1, 2002By Matias B. Vanotti
Organic polymers are useful to increase separation of suspended solids and reduced carbon compounds from liquid swine manure. Along with the solids, there is a capture of the nutrients associated...
Simulating Swine Manure Transport in Soils Using the Mobile-Immobile Contaminant Transport Model
January 1, 2002By Victor B. Ella
Modeling swine manure transport is an important initial step not only in understanding the behavior of this potential contaminant in the subsurface environment but also in providing a basis for...
Oxidation kinetics of phenolic and indolic compounds by ozone: applications to synthetic and real swine manure slurry
January 1, 2002By Jerry J. Wu
In this study, an oxidation model combining the mass transfer of ozone and ozonation kinetics was developed to predict the degradation of several phenolic and indolic compounds in a semi-batch...
Effects of Solids Separation and Time on the Production of Odorous Compounds in Stored Pig Slurry
January 1, 2002
Fresh pig faeces were separated into seven different liquid portions with particle size ranges pig manure through a series of seven American Society for Testing Materials (ASTM) standard wire screen...
Fate of Salmonella following application of swine manure to tile-drained clay loam soil
January 1, 2002
Land application of animal manure is an important means of utilization of nitrogen and phosphorus. However, the presence of pathogens in manure and their occasional leaching into subsurface water has...
Influence of composts and liquid pig manure on CO2 and N2O emissions from a clay loam soil
January 1, 2002
Application of raw animal manure to agricultural land has resulted in environmental and health problems. Alternatives, such as composting, are now being developed to alleviate this situation....
