Solid-liquid separation of flushed swine manure with PAM: effect of wastewater strength
January 1, 2002By Matias B. Vanotti
Organic polymers are useful to increase separation of suspended solids and reduced carbon compounds from liquid swine manure. Along with the solids, there is a capture of the nutrients associated...
Precipitation of swine and cattle manure phosphorous using limestone dust
January 1, 2002
The effectiveness of SPS and PULPRO, fine limestone dusts, in precipitating swine and dairy manure phosphorous (P) was determined in the laboratory. Both manures were sieved before being treated with...
Quality-assured measurements of animal building emissions: Particulate matter concentrations
January 1, 2002By Heber A
Federally funded, multistate field studies were initiated in 2002 to measure emissions of particulate matter (PM) < 10 mu m (PM10) and total suspended particulate (TSP), ammonia, hydrogen sulfide,...
Nutrient recovery from swine lagoon water by Spirodela punctata
January 1, 2002
Spirodela punctata 7776, the best duckweed strain in total protein production selected from in vitro screening experiments with synthetic swine lagoon water medium was examined for N and P recovery....
Nutrient Transport as Affected by Rate of Overland Flow
January 1, 2002By John E. Gilley
Little information is currently available concerning the effects of varying flow rate on nutrient transport by overland flow. The objective of this study was to measure the effects of overland flow...
Effects of temperature, soil water status, and soil type on swine slurry nitrogen transformations
January 1, 2002
Manure N dynamics are affected by manure characteristics, soil factors, and environmental conditions. An incubation experiment was conducted to assess the relationship of these factors. The effects...
Effect of liquid swine manure rate, incorporation, and timing of rainfall on phosphorus loss with surface runoff
January 1, 2002By B.L. Allen and A.P. Mallarino
Excessive manure phosphorous (P) application increases risk of P loss from fields. This study assessed total runoff P (TPR), bioavailable P (BAP), and dissolved reactive P (DRP) concentrations and...
Stratification of solids, nitrogen and phosphorus in swine manure in deep pits under slatted floors
January 1, 2002
Manure slurries stored in pits under slatted floors of both finishing and nursery barns were sampled at four different depths to study stratifications of total solids (TS) and nutrients (nitrogen and...
Characterizing ammonia emissions from swine farms in eastern north carolina: Part 1-conventional lagoon and spray technology for waste treatment
January 1, 2002By Aneja Viney P.
Ammonia (NH3) fluxes from waste treatment lagoons and barns at two conventional swine farms in eastern North Carolina were measured. The waste treatment lagoon data were analyzed to elucidate the...
Retention of nitrogen and phosphorous from liquid swine and poultry manures using highly characterized peats
January 1, 2002
This paper reports on research designed to test the hypothesis that differences in peat composition will cause differences in amounts of N and P retained during contact with liquid swine manure (LSM)...
