Solutions to reduce ammonia levels in swine facilities
January 1, 1985
Six case studies are presented for reducing ammonia levels in pig housing of various designs and construction. The pig building's minimum ventilation rate should maintain a 50-70% relative humidity...
Air quality in farrowing barns
January 1, 1984
Concentrations and production rates of major ambient contaminants (moisture, dust particles, carbon dioxide, ammonia and hydrogen sulphide), were established in 5 farrowing rooms. Comparison between...
Anaerobic filter loading for liquid swine waste [Odor reduction, on the farm waste management system]
January 1, 1983
Anaerobic filters were tested to quantify design and process variables necessary to design an anaerobic filter for treating liquid swine waste. The anaerobic filter operates at 9 hours hydraulic...
Phosphorus removal from swine manure supernatant: precipitant efficiency
January 1, 1983
This study proposes an emergency remedial measure aimed at reducing the eutrophic load of the supernatant of pig manure when discharge in the aquatic environment is unavoidable. Phosphate removal...
Swine lagoon effluent applied to hardwood seedlings
January 1, 1983By R. O. Hegg
This report is a summary of a project to apply swine lagoon effluent onto three hardwood species (yellow-poplar, green ash, and eastern cottonwood) at five application rates (0, 20, 47, 74, and 144 cm/yr).
Nitrogen losses from swine housings
January 1, 1982
A nitrogen budget procedure was used to estimate the loss of manure N from three swine barns with liquid manure systems. The loss of N was determined as the difference between animal plus feed N...
Fertilizer value and nitrogen losses of swine and dairy manure from an above-ground storage system
January 1, 1982By D. L. Welty
None available.
Environment - Manure Storage / Application
Pollution control of swine manure and straw by conversion to Chaetomium cellulolyticum SCP single-cell protein feed
January 1, 1981By M. Moo-Young
Swine manure has a very high pollution potential and obnoxious odor. Large farms particularly are confronted with a manure disposal problem since environmentally acceptable solutions are now required...
Odor control in liquid swine and dairy manure with commercial products
January 1, 1980By Robert P. Eastburn|William F. Ritter
In 5 experiments, single or regular addition of liquid polyphosphates (N 10%, P2O5 34%) at up to 4 ml/l to liquid dairy cattle or pig manure (TS 5-7%) did not reduce odour, COD or pH. Single or...
