Release and Dispersion of Volatile Organic Compounds and Trace Gases From Swine Manure Systems in Iowa, Arkansas, and North Carolina
April 1, 1997By J.L. Hatfield
Release of gaseous compounds from swine manure storage systems has been poorly quantified; however, the perception of intensive amounts of gases is one of the larger problems for the pork industry....
Estimating ammonia loss from sprinkler-applied swine effluent
January 1, 1997
Volatilization of NH3 from sprinkler-applied effluent is a major N loss pathway in the Great Plains region, but there is disagreement as to how much of the total NH4-N applied in effluent is lost....
Soil carbon and nitrogen dynamics following application of pig slurry for the 19th consective year. II. Nitrous oxide fluxes and mineral nitrogen
January 1, 1997
Agricultural soils often receive annual applications of manure for long periods. Our objective was to quantify the effects of 19 consecutive years of pig (Sus scrofa) slurry (PS) application to a...
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...
