Laboratory study of surface aeration of anaerobic lagoons for odor control of swine manure
January 1, 1997
Surface aeration of pig manure stored in anaerobic lagoons for odour control was experimentally studied in the laboratory. The effects of different aeration rates and depths on reduction in emission...
Phosphorus loss to runoff water twenty-four hours after application of liquid swine manure or fertilizer
January 1, 1997By H. Tabbara
Phosphorus (P) added to soil from fertilizer or manure application could pose a threat to water quality due to its role in eutrophication of fresh water resources. Incorporating such amendments into...
Odor emission from a swine finishing facility with a surface-aerated lagoon
January 1, 1997
Odour emission from a 6 000 head swine grow-finish facility was measured in May 1998. Lagoon odour emission with simulated wind speeds of 1.1 m/s in a new buoyant convective flux chamber ranged from...
Use of urease inhibitors to control nitrogen loss from livestock waste
January 1, 1997By Vincent H. Varel
Current waste management systems for cattle feedlots and swine facilities result in nitrogen losses of approx. 75%. Most of this loss occurs through the rapid hydrolysis of urinary nitrogen (urea) to...
Biofiltration using partially stabilized hog manure compost
January 1, 1997
Hog manure amended with sawdust (moisture 56-60% wet basis, C/N 19-21) was composted in pilot-scale vessels using continuous aeration (CA) and intermittent aeration (IA) for 3 and 4 weeks. In two...
Anaerobic treatment of swine waste by the anaerobic sequencing batch reactor
January 1, 1997By R. H. Zhang
Anaerobic sequencing batch reactor (ASBR) uses a high-rate anaerobic bioconversion process to stabilize organic wastes for odor control and generate biogas for energy use. It is well suited for...
Evaluation of commercial manure additives to control odors from swine barns
January 1, 1997
A protocol was developed and tested to evaluate commercial manure additives in pig finishing barns. The ammonia and manure were analysed for fertilizer value. Air samples, collected at regular...
Swine lagoon effluent disposal by overland flow: Effects on forage production and uptake of nitrogen and phosphorus
January 1, 1997By Fuhan Liu
Swine (Sus scrofa) production requires economical and environmentally safe waste management systems, The objective of this study was to determine the effect of swine lagoon effluent on dry matter...
Dust concentrations and particle size distribution in an enclosed swine nursery
January 1, 1997
Dust levels in a mechanically ventilated swine nursery were measured for 13 sampling days over a six-week period during warm weather conditions. Mean daily room air temperature and relative humidity...
Soil microbial populations, community composition, and activity as affected by repeated applications of hog and cattle manure in eastern Saskatchewan
January 1, 1997By J. R. de Freitas
A field site near Humboldt, Saskatchewan, was annually treated with hog or cattle manure and cropped to canola, spring wheat, barley, and canola from 1997 to 2000. During each growing season, soil...
