Edge-of-field losses of surface-applied animal manure
January 1, 1995
Poultry and swine production are important aspects of Arkansas agricultural economy. As these industries have grown, so have concderns regarding the proper utilization and disposal of the associated...
Estimated seepage losses from established swine waste lagoons in the lower coastal plain of North Carolina
January 1, 1995By Rodney L. Huffman
Eleven well-established, swine waste lagoon systems in the lower coastal plain of North Carolina were examined for evidence of seepage losses to the superficial aquifer. The sites were selected to...
A Simple Design and Operation for the Anaerobic Treatment of Highly Concentrated Swine Waste in the Tropics
January 1, 1995By P. Y. Yang
In order to develop a simple operation for an anaerobic treatment process for highly concentrated pig wastewater for small producers, a three-stage anaerobic treatment process was investigated. The...
Environment - Water Usage / Conservation
A method to evaluate appropriate nipple drinker flow rates for pigs
January 1, 1995By Peter A. Phillips
A method was developed for measuring how different water flow rates from nipple drinkers affect the actual rates of water intake and spillage by pigs. A combination of video and electronic techniques...
Removal of airborne swine dust by electrostatic precipitation
January 1, 1995
An electrostatic precipitator used in conjunction with a recirculation duct was developed to remove airborne pig dust from an environmental chamber. The collection efficiency of the precipitator was...
Comparability of anaerobic swine lagoon effluent to commercial fertilizer on soil nutrient dynamics
January 1, 1994By A. Adeli
The effects of swine effluent relative to commercial fertilizer on nutrient dynamics in two soils were studied in Mississippi, USA. Swine effluent and commercial fertilizer were applied to...
A computer model for predicting ammonia release rates
January 1, 1994
A computer model for predicting ammonia release rates from manure pits in pig buildings is presented. The model couples ammonia diffusion and generation in the manure with ammonia release from the...
Gaseous nitrogen emissions from anaerobic swine lagoons: ammonia, nitrous oxide, and dinitrogen gas
January 1, 1994
Seventy-five percent of swine (Sus scrofa) production systems in North America use anaerobic or liquid-slurry systems for waste holding or disposal. Accurate emissions data and emission factors are...
Removal of ammonia and odors from contaminated air in animal houses by a ferroelectric plasma reactor
January 1, 1994
The objective of this work was to develop an electric air-cleaning system for animal houses. An a.c.-powered ferroelectric packed-bed plasma reactor was tested to destroy ammonia and odours in the...
Swine lagoon effluent as a source of nitrogen and phosphorus for summer forage grasses
January 1, 1994
Efficient crop utilization of N and P derived from anaerobic swine (Sus scrofa domesticus) lagoon effluent is critical to minimizing offsite nutrient movement. The objective of this study was to...
