Extractable Phosphorus Following Soil Amendment With Manure From Swine Fed Low-Phytate Corn
January 1, 2003By H. T. Gollany
Manure application rate recommendations have been based almost exclusively on nitrogen (N) management considerations, which can result in over-application of phosphorus (P) and its accumulation in...
An assessment of odour emissions from land applied swine manure
January 1, 2003
Land application of manure generates more odour complaints than any other stage in livestock production. Livestock odours have been found to be complex and challenging to accurately measure in field...
Movement of faecal bacteria through the vadose zone
January 1, 2003By Adrian Unc
The impact of biosolid and soil type on the movement of faecal coliforms through the vadose zone was investigated following the application of animal manure to soil. Two types of biosolid, solid...
Using a Soil Hydrometer to measure the Nitrogen and Phosphorus Contents in Pig Slurries
January 1, 2003By JUN ZHU
The hydrometer method to indirectly measure the nutrient contents, i.e. total nitrogen Nt, and total phosphorus Pt of pig slurries was examined against both single and multiple slurry sources. The...
Evaluation of the Carbofil Inernational Downflow Tube Reactor for Treatment of Swine Waste
January 1, 2003
The Carbofil® biological reactor is a type of down-draft reactor that uses impellers to entrain oxygen and increase the opportunity for that oxygen to dissolve in wastewater. The oxygen is used...
Role of Rhodobacter sp. strain PS9, a purple non-sulfur photosynthetic bacterium isolated from an anaerobic swine waste lagoon, in odor remediation
January 1, 2003By Alan A. DiSpirito
Temporal pigmentation changes resulting from the development of a purple color in anaerobic swine waste lagoons were investigated during a 4-year period. The major purple photosynthetic bacterium...
Quicklime Stabilization of Belt-separated Swine Manure Solids
January 1, 2003
Quicklime may be used to raise the pH of manure solids thus initiating a stabilizing effect of killing pathogens, reducing vector attraction, and controlling odors. A range of 5% to 15% quicklime...
Solids separation coupled with batch-aeration treatment for odor control from liquid swine manure
January 1, 2003
Previous studies on solids/liquid (S-L) separation for odour control from swine manure indicated that the practice might not technically be feasible because of the complexity of removing the fine...
Evaluation of ammonia recovery waste treatment for swine urine
January 1, 2003
The United States Department of Agriculture (USDA) and Environmental Protection Agency (EPA) have identified ammonia loading in wastewaters associated with animal farming operations to be a general...
Odor, total reduced sulfur, and ammonia emissions from animal housing facilities and manure storage units in Minnesota
January 1, 2003By Susan Wood Gay
The quantification of odor, total reduced sulfur (TRS), and ammonia (NH3) emissions from animal housing facilities and manure storage units is essential for the development and implementation of...
