Malodor reduction in liquid swine manure treated in subsurface flow constructed wetlands
January 1, 2000
Anecdotal evidence has suggested that constructed wetlands can reduce malodor in liquid livestock wastes. This study quantified the concentrations of two malodorous compounds (dimethyl disulfide and...
Conceptual model for ammonia and odor production and ammonia emission from swine anaerobic lagoons
January 1, 2000
A model that predicts the concentration of ammonia and volatile fatty acids as odor indicators was developed for anaerobic lagoons using Monod kinetics. The model used average measured parameter...
Evaluation of a permeable, 5 cm thick, polyethylene foam lagoon cover
January 1, 2000
Anaerobic lagoons and liquid manure storage basins are widely used for the treatment and storage of livestock and poultry manure. Although relatively inexpensive to construct, these devices have been...
Removal of dimethyl disulfide and p-cresol from swine facility wastewater using constructed subsurface-flow wetlands
January 1, 2000
Anecdotal evidence suggests that constructed wetlands can remove odors from veal, dairy, and swine wastes (Murphy and George, 1997; McCaskey, 1995). However, the use of constructed wetlands as an...
Effect of a manure additive on ammonia emission from swine finishing buildings
January 1, 2000
The effect of a commercial manure additive (Alliance) on ammonia (NH3) emissions was evaluated in commercial 1000-head grow-finish swine buildings over a six-month period. The test was conducted in...
Phototrophic anaerobic lagoons as affected by copper and zinc in swine diets
January 1, 2000By J. E. Gilley
Odor emissions from anaerobic lagoons containing large populations of phototrophic bacteria are usually minimal. This study was conducted to determine whether copper (123 ppm) and zinc (2,310 ppm) in...
Design and analysis of a pilot scale biofiltration system for odorous air
January 1, 2000By John J. Classen
Three pilot-scale biofilters and necessary peripheral equipment were built to clean odorous air from the pit of a swine gestation building at North Carolina State University. A computer measured...
Two airspace building design to reduce odour and gas emissions from pig farms
January 1, 2000By S.P. Lemay
By keeping manure storage into the building and creating two independent airspaces within a room (main airspace and an enclosed dunging area [EDA]), it is suggested that the building air quality...
Designs for windbreak walls for mitigating dust and odor emissions from tunnel ventilated swine buildings
January 1, 2000By R.W. Bottcher
Although windbreak walls have traditionally been applied to reduce ground-level wind speeds and enhance snow deposition, windbreak walls have also recently been placed downwind of animal buildings in...
Odor and gas release from anaerobic treatment lagoons for swine manure
January 1, 2000By A.J. Heber
Odour and gas release from anaerobic lagoons for treating swine waste affect air quality in neighbouring communities but rates of release are not well documented. A buoyant convective flux chamber...
Lagoon-biogas emissions and carbon balance estimates of a swine production facility
January 1, 2000
Gaseous emissions from animal manure storage facilities can contribute to global greenhouse gas inventories. Biogas fluxes were measured for one year from a 2-ha anaerobic lagoon that received waste...
Greenhouse gas emissions from stored liquid swine manure in a cold climate
January 1, 2000
Current global warming has been linked to increases in greenhouse gas (GHG) concentrations. Animal manure is an important source of anthropogenic GHG, mostly of methane (CH4) and nitrous oxide (N2O)....
