Application of Mixed and Aerated Pond for Nitrification and Denitrification of Flushed Swine Manure
January 1, 1998By Philip Westerman
A nitrification/denitrification system for flushed swine manure was evaluated for treating manure from 3000 finishing pigs. The system consisted of a pond with a mixing zone for denitrification...
Testing of peats for removal of odors from liquid swine manure
January 1, 1998
This paper reports on research designed to investigate the capacities of different kinds of peat to remove odor-causing compounds from liquid swine manure (LSM). Two experiments were conducted. In...
Covered anaerobic lagoon system for swine waste treatment and energy recovery
January 1, 1998By Jiayang Cheng
A covered anaerobic lagoon system for swine manure management has been evaluated for its performance. The system consists of a covered anaerobic lagoon for primary treatment and a conventional lagoon...
Odor and gas reduction from sprinkling soybean oil in a pig nursery
December 1, 1997
Daily sprinkling of very small amounts of vegetable (soyabean) oil inside a pig nursery facility reduced the odour, hydrogen sulfide (H2S), and total dust levels of the air inside the barn and in the...
Reduction of nutrients and odor in swine manure with sequencing batch treatment and intermittent aeration
August 1, 1997
A pilot plant with capacity to treat up to 1.5 msuperscript 3/day was installed in August 1997 at D & B Swine Farm in Halifax County, North Carolina, USA. The system was composed of a...
Minimizing Cost while Safely Composting Swine Mortality in Roofed and Unroofed Compost Systems – An Evaluation of Type and Amount of Amendments on the Compost Process
July 1, 1997By Steven Moeller
Proper disposal of carcasses occurring due to mortality in animal production is necessary for protection of the environment and prevention of the spread of disease organisms. Mortality disposal laws...
Biological Control of Hog Waste Odor through Stimulated Microbial Fe(III) Reduction
July 1, 1997By John D. Coates
Odor control and disposal of swine waste have inhibited expansion of swine production facilities throughout the United States. Swine waste odor is associated primarily with high concentrations of...
Upflow biological aerated filters for the treatment of flushed swine manure
May 1, 1997
A pilot plant with capacity to treat up to 8 m3/day of supernate from settled flushed swine wastes was monitored for 12 months. The main system is composed of two upflow aerated biofilters connected...
Soil carbon and nitrogen dynamics following application of pig slurry for the 19th consecutive year. I. Carbon dioxide fluxes and microbial biomass carbon
May 1, 1997
Agricultural soils often receive annual applications of manure for long periods. The objective of this study was to quantify the effects of 19 consecutive years of pig (Sus scrofa) slurry (PS)...
Release and Dispersion of Volatile Organic Compounds and Trace Gases From Swine Manure Systems in Iowa, Arkansas, and North Carolina
April 1, 1997By J.L. Hatfield
Release of gaseous compounds from swine manure storage systems has been poorly quantified; however, the perception of intensive amounts of gases is one of the larger problems for the pork industry....
