Comparison of the odour levels of biofiltered air and ambient farmyard air
January 1, 2000
Two experimental biofilters were used to determine whether an airstream treated by a biofilter could be distinguished from ambient farmyard air. Odourous air (mean of 958 OU measured using...
Environment - Water Usage / Conservation
Impact of feeders and drinker devices on pig performance, water use, and manure volume
January 1, 2000By Michael C. Brumm
Objective: To determine the impact of feeder and drinker designs on pig performance, water use, and manure volume. Methods: Experiment One compared a wet/dry feeder to a dry feeder with...
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)....
Evaluation of Biosafe as an additive to reduce odor from swine manure
January 1, 2000
Bench scale experiments were performed to determine the effect of adding various amounts of the product Biosafe to swine manure. In particular, it was desired to determine if addition of Biosafe...
Constructed Wetlands as Remediation Tools for Shallow Groundwater Contaminated by Swine Lagoon Seepage
January 1, 2000By Michael R. Burchell II
Constructed wetlands have been implemented as treatment systems for wastewater. Wetlands may remove nutrients and sediment through biogeochemical functions such as adsorption, nitrification,...
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...
Solids-liquid separation of swine manure for odor control
January 1, 2000
Fresh swine manure was separated into seven different liquid portions with size-ranges; <2.0, <1.4, <1.0, <0.5, <0.25, <0.15 and <0.075 mm, respectively. The separation was...
The effectiveness of aerobes used as manure additives for swine manure odor control
January 1, 2000By JUN ZHU
The objective was to examine the growth of aerobic bacteria in swine manure when used as manure additives for odor control. Hydrogen peroxide was used as an oxygen provider added to the test manure...
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...
Correlation of odor detection thresholds with concentrations of hydrogen sulfide, ammonia and trace gases emitted from swine manure
January 1, 2000
Several odour measurement methods were used during a 42-day test of commercial manure additives. Air samples were taken biweekly from the ventilated headspaces of 39 laboratory reactors containing...
