Denitrification in a Coastal Plain Riparian Zone Contiguous to a Heavily Loaded Swine Wastewater Spray Field
January 1, 1994
Riparian zones are recognized worldwide as important landscape features that are able to buffer streams from pollutants, particularly nitrogen. The objectives of this experiment were to 1) assess 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...
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...
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...
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...
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...
Designing Riparian Buffer Systems for Utilization and Treatment of Effluent
January 1, 1993By R. K. Hubbard
Management techniques for using riparian buffer systems to utilize and treat agricultural effluents are being developed in at the Coastal Plain Experiment Station, Tifton, GA. Riparian systems...
Treatment of Swine Wastewater Using a Saturated-Soil-Culture Soybean and Flooded Rice System
January 1, 1993By P. G. Hunt
Constructed wetlands have potential for treatment of livestock wastewater, but they generally contain wetland plants rather than agronomic crops. We evaluated two agronomic crops,...
A land-limited and energy-saving treatment system for dilute swine wastewater
January 1, 1993
A combined bio-fixed film and aquatic plant (CBFFAP) system was investigated for treatment of diluted swine waste and anaerobically digested effluent under tropical-climate and land-limited...
Composting of separated solid swine manure
January 1, 1993By P. H. Liao
A study was conducted to investigate the efficiency of the composting process when the initial moisture content is higher than the generally recommended limit of 65%. Solids separated from swine...
A swine waste package biotreatment plant for the tropics
January 1, 1993By P. Y. Yang
Management of small pig waste/wastewater in the tropics is considered as a rather difficult problem, especially in the land limited and populated areas. In order to eliminate the problem or...
Application of nitrogen from swine lagoon effluent to bermudagrass pastures: seasonal changes in forage nitrogenous constituents and effects of energy and escape protein supplementation on beef cattle performance
January 1, 1993By R. W. Harvey
A 2-yr study was conducted to evaluate 1) the effects of nitrogen level from swine lagoon effluent on forage composition and animal performance and 2) the effects of supplemental escape protein (EP)...
