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...
Enhanced Phosphorous removal from swine-nursery manure in aerated batch reactors
January 1, 2003
Phosphorus-based land application of swine manure slurry results in under-application of nitrogen (N), while nitrogen-based application leads to over?application of phosphorus (P). Significant...
Development of methods to measure dust (PM10) and ammonia emissions from Minnesota pig facilities
December 31, 2002By Larry D. Jacobson
The concentration and emission rate for ammonia, hydrogen sulfide, particulate matter or dust under 10 microns in diameter (PM10), and odor were measured in a representative deep-bedded hoop pig...
