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...
Ammonia, volatile fatty acids, phenolics, and odor offensiveness in manure from growing pigs fed diets reduced in protein concentration
January 1, 2003By N.L. Trottier
The objective of this study was to investigate whether reducing dietary CP concentration decreases faecal VFA, manure ammonia (NH3) emission and odour, and urinary phenolic metabolites. Six barrows...
Limitations of Orthophosphates Removal from Swine Manure During Batch-Aerated Treatments
January 1, 2003By Pius M. Ndegwa
Previous studies on removal of orthophosphates (ortho-P) from swine manure during aeration treatments show performances ranging between 30 and 91%. This study investigated three factors believed to ...
Methane emissions from dairy cow and swine manure slurries stored at 10 degrees C and 15 degrees C
January 1, 2003
Livestock waste represents a potentially important source of methane (CH4) emissions, but little experimental data are available on CH4 production from manure stored on farms. The objective of this...
Influence of aeration rate and liquid temperature on ammonia emission rate and manure degradation in batch aerobic treatment
January 1, 2003By JUN ZHU
The influence of aeration rates (26, 63, and 100 ug O2 g VS-1 min-1) at different temperatures (5°C, 15°C, and 25°C) on ammonia emission and breakdown of organic materials was studied using 15.3...
Effects of bioreactor temperature and time on odor-related parameters in aerated swine manure slurries
January 1, 2003
Previous studies have linked odor generation from swine manure to some characteristics of the liquid manure such oxidation-reduction potential (ORP), five-day biochemical oxygen demand (BOD5),...
Precipitation of liquid swine manure phosphates using magnesium smelting by-products
January 1, 2003By and N. Ziadi|G. Be´ langer|G. Parent
Swine manure contains considerable amounts of total (P) and soluble phosphorus (PO4-P) which may increase the soil P content when applied in excess to crop requirements and, consequently, risk water...
Interactive effects of composts and liquid pig manure with added nitrate on soil carbon dioxide and nitrous oxide emissions from soil under aerobic and anaerobic conditions
January 1, 2003
The composting process results in immobilization of inorganic N. When high-N-demanding crops are grown in compost-amended soils, additional N fertilizer is often applied. The combination of elevated...
