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...
Modeling sources of gaseous emissions in a pig house with recharge pit
January 1, 2006By Peter Kai
Ammonia, methane, and odor from a fully slatted pig housing facility equipped with a pit-recharge manure system were modeled with a view to quantify the sources of ammonia, methane, and odor...
A two-step fed SBR for treating swine manure
January 1, 2006By JUN ZHU
Specially designed sequencing batch reactors (SBR) may be a solution to disposal of massive pig manure, rich in nitrogen (N) and phosphorus (P), produced by concentrated swine operations. In this...
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...
Treatment of swine manure effluent using freshwater algae: Production, nutrient recovery, and elemental composition of algal biomass at four effluent loading rates
January 1, 2006By Walter W. Mulbry United States Department of Agriculture
Cultivating algae on nitrogen (N) and phosphorus ( P) in animal manure effluents presents an alternative to the current practice of land application. The objective of this study was to determine how...
Multi-component analysis of tetracyclines, sulfonamides and tylosin in swine manure by liquid chromatography-tandem mass spectrometry
January 1, 2006By A. M. Jacobsen
A multi-component method focussing on thorough sample preparation has been developed for simultaneous analysis of swine manure for three classes of antibiotic-tetracyclines, sulfonamides, and...
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...
Developing an environmental manure test for the phosphorus index
January 1, 2006By Peter J. A. Kleinman
Widespread implementation of the phosphorus (P) index has focused attention on environmental manure tests that can be used to estimate the relative availability of P in manure to runoff water. This...
Methane and carbon dioxide emissions from simulated anaerobic swine manure treatment lagoons under summer conditions
January 1, 2006
Most estimates of carbonaceous gas emissions from manure treatment lagoons are based on biogas production from anaerobic digesters, gases collected over covered lagoons, or the CH4 production...
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...
