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...
Effect of rate, frequency and method of liquid swine manure application on soil nitrogen availability, crop performance and N use efficiency in east-central Saskatchewan
January 1, 1996By J. J. Schoenau
A study was initiated in the fall of 1996 in the Black soil zone in east-central Saskatchewan (parkland region) to examine the soil and crop response to application of liquid swine manure at...
Soil chemical changes following manure application on irrigated alfalfa and rainfed timothy in southern Alberta
January 1, 1996
In areas within Alberta where suitable cultivated land is not available, or for convenience, the use of forage land is an alternative for manure application. However, there is limited research on the...
Odor measurements from manure storages on Minnesota pig farms
January 1, 1996
Data collected from 30 pig manure stores in Minnesota, USA, shows a wide range of both odour dilution thresholds and hydrogen sulfide concentrations during moderate autumn weather conditions. A...
Groundwater nitrate depletion in a swine lagoon effluent-irrigated pasture and adjacent riparian zone
January 1, 1996By A. J. Sloan
Irrigation of anaerobic swine lagoon effluent onto cattle-grazed grass pastures represents a common waste treatment method in the Coastal Plain of North Carolina. However, such treatment strategies...
