A Laboratory Scale Sequencing Batch Reactor with the Addition of Acetate to remove Nutrient and Organic Matter in Pig Slurry
January 1, 2006By J. Zhu
The influence of carbon addition on performance of a laboratory-scale, anaerobic-anoxic-anaerobic-anoxic sequencing batch reactor [(An/Ax)2 SBR] in biologically removing nitrogen and organic matter...
Sorption of inorganic and total phosphorus from dairy and swine slurries to soil
January 1, 2006
Understanding P sorption from animal manures is essential to formulate best management practices with regard to land application of manure from the standpoint of crop production and environmental...
Use of polyacrylamide in simulated land application of lagoon effluent: Part I. Runoff and sediment loss
January 1, 2006By Dennis C. Flanagan
Agriculture contributes considerably to water quality problems in the U.S. Tillage systems and land application of wastewaters from animal production facilities can increase both sediment and...
Use of polyacrylamide in simulated land application of lagoon effluent: Part II. Nutrient loss
January 1, 2006By Dennis C. Flanagan
Land application of agricultural wastewater can contribute to eutrophication of water bodies by increasing the quantities of dissolved and particulate nutrients that are transported in runoff during...
Response of selected soil physical and hydrologic properties to manure amendment rates, levels, and types
January 1, 2006By Fares
Manure amendments affect several soil physical and hydrologic properties. The objectives of this study were to evaluate the effect of (i) manure amendment rates (0, 168, 336, and 672 kg total N...
Impact of agriculture on water quality in the North Carolina Middle Coastal Plain
January 1, 2006By Michael D. Dukes
Water quality in the Middle Coastal Plain of North Carolina has been impacted by agriculture; however, the water quality impacts in these areas over time have not been studied in detail. The surface...
Effect of lime, dicyandiamide and soil water content on ammonia and nitrous oxide emissions following application of liquid hog manure to a marshland soil
January 1, 2006By M. S. Mkhabela
The loss of nitrogen (N) from field-applied animal manure through ammonia (NH3) volatilisation and nitrous oxide (N2O) emission is of major environmental concern. Both lime and dicyandiamide (DCD)...
Cover crop effects on the fate of N following soil application of swine manure
January 1, 2006By T.B. Parkin
Cereal grain cover crops increase surface cover, anchor corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] residues, increase infiltration, reduce both rill and interrill erosion, scavenge...
Small livestock producers with diffuse water pollutants: adopting a disincentive for unacceptable manure application practices
January 1, 2006By Centner
The problem of water pollution from small livestock producers (non-concentrated animal feeding operations) could be addressed through water quality regulations that apply to additional livestock...
Development of a hydrophilic interaction chromatography-mass spectrometry assay for spectinomycin and lincomycin in liquid hog manure supernatant and run-off from cropland
January 1, 2006
A specific and sensitive analytical method was developed to extract and quantify spectinomycin and lincomycin in liquid hog manure supernatant and simulated rainfall run-off from manure-treated...
Piggery slurry composting using batch operating autothermal thermophilic aerobic digestion system
January 1, 2006
The performance of an autothermal thermopholic aerobic digestion (ATAD) system was studied to determine if nitrogen loss, as ammonia, was affected by an exhaust gas condenser. The system was run with...
Manure composition of swine as affected by dietary protein and cellulose concentrations
January 1, 2006
An experiment was conducted to investigate the effects of reducing, dietary CP and increasing dietary cellulose concentrations on manure DM, C, N, S, VFA, indole, and phenol concentrations....
