Phosphorus stratification and potential for runoff loss following long term manure application
January 1, 2002By Martha Mamo
Understanding phosphorus (P) accumulation and stratification in surface soil following manure application is critical for runoff P loss abatement. The objectives of this study were to predict soil P...
Emissions of ammonia, hydrogen sulfide, and odor before, during, and after slurry removal from a deep-pit swine finisher
January 1, 2002
It is a common practice in the midwestern United States to raise swine in buildings with under-floor slurry storage systems designed to store manure for up to one year. These so-called...
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....
Odor flux measurements at a facultative swine lagoon stratified by surface aeration
January 1, 2002
Odour-related complaints are a major concern of pork producers. Open manure storage and treatment facilities such as uncovered anaerobic treatment lagoons are a major contributor to odour nuisance....
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...
Nitrous oxide and ammonia fluxes in a soybean field irrigated with swine effluent
January 1, 2002
In the USA, swine (Sus scrofa) operations produce more than 14 Tg of manure each year. Approximately 30% of this manure is stored in anaerobic lagoons before application to land. While land...
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...
Carvacrol and thymol reduce swine waste odor and pathogens: stability of oils
January 1, 2002
An incomplete anoxic fermentation of livestock waste results in offensive odour emissions. Antimicrobial additives may be useful in controlling odour emissions and pathogens. Natural antimicrobial...
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...
Summertime concentrations and emissions of hydrogen sulfide at a mechanically ventilated swine finishing building
January 1, 2002
Hydrogen sulfide (H2S) concentration and emission at a modern mechanically ventilated swine finishing building with a deep pit were continuously measured for three summer months. The building is...
