Effects of cycle-frequency and temperature on the performance of anaerobic sequencing batch reactors (ASBRs) treating swine waste
January 1, 2008By P.M. Ndegwa Biological Systems Engineering Department
Anaerobic digestion of animal waste is a technically viable process for the abatement of adverse environmental impacts caused by animal wastes; however, widespread acceptance has been plagued by poor...
Process model for ammonia volatilization from anaerobic swine lagoons incorporating varying wind speeds and gas bubbling
January 1, 2008By Kyoung S. Ro
Ammonia volatilization from treatment lagoons varies widely with the total ammonia concentration, pH, temperature, suspended solids, atmospheric ammonia concentration above the water surface, and...
Field sampling method for quantifying odorants in humid environments
January 1, 2008By Steven Trabue
Most air quality studies in agricultural environments use thermal desorption analysis for quantifying semivolatile organic compounds (SVOCs) associated with odor. The objective of this study was to...
Greenhouse gas emission reduction and environmental quality improvement from implementation of aerobic waste treatment systems in swine farms
January 1, 2008By Vanotti
Trading of greenhouse gas (GHG) emission reductions is an attractive approach to help producers implement cleaner treatment technologies to replace current anaerobic lagoons. Our objectives were to...
Effect of the presence of the antimicrobial tylosin in swine waste on anaerobic treatment
January 1, 2008
An anaerobic sequencing batch reactor (ASBR), seeded with a biomass inoculum that
previously had not been exposed to the macrolide antimicrobial tylosin (mixture of Tylosin
A, B, C, and D), was...
Evaluating phosphorus loading from repeated manure applications to two Saskatchewan soils
January 1, 2008
An understanding of the impact of repeated manure additions on soil phosphorus (P) is needed to determine appropriate manure application rates for prairie soils and manure sources. The objective of...
Reuse of concentrated animal feeding operation wastewater on agricultural lands
January 1, 2008
Concentrated animal feeding operations (CAFOs) generate large volumes of manure and manure contaminated wash and run-off water. When applied to land at agronomic rates, CAFO wastewater has the...
ELISA for Sulfonamides and Its Application for Screening in Water Contamination
January 1, 2008By W. SHELVER
Two enzyme-linked immunosorbent assays (ELISAs) were tested for their suitability for detecting sulfonamides in wastewater from various stages in wastewater treatment plants (WWTPs), the river into...
Air pollution and odor in communities near industrial swine operations
January 1, 2008
BACKGROUND: Odors can affect health and quality of life. Industrialized animal agriculture creates odorant compounds that are components of a mixture of agents that could trigger symptoms reported by...
Nitrogen mass balance in fields irrigated with liquid swine
January 1, 2008By S. C. Whalen
Over the past 15-years, swine-producing
confined animal feeding operations (CAFOs) have
proliferated throughout the Southeastern United
States, particularly in North Carolina. Waste at...
