Design and evaluation of an open biofilter for treatment of odour from swine barns during sub-zero ambient temperatures
January 1, 1999
Open biofilters have previously been shown to reduce odour from typical swine production facilities, but it was not known whether the exhaust air contained sufficient heat to prevent the biofilter...
Swine effluent compared to inorganic fertilizers for tomato production
January 1, 1999
Five fertilizer treatments, three of which included swine effluent, were evaluated for plasticulture production of tomato, cv. Mountain Spring, grown on raised beds with black polyethylene mulch and...
Effect of anaerobic digestion on struvite production for nutrient removal from swine waste prior to land application
January 1, 1999By Lara Beal Moody
Swine production facilities are becoming larger in size and are concentrated in smaller geographical areas. Additionally, there is an increasing trend to base manure land application rates on crop...
Odor and hydrogen sulfide emissions during agitation and pumping of stored dairy and swine manure in Minnesota
January 1, 1999
Odour and hydrogen sulfide (H2S) release during agitation and pumping of stored manure can often cause neighbours to complain. Increased levels of H2S inside or near animal buildings impact the...
Mass transfer coefficient for hydrogen sulfide emission from aqueous solutions and liquid swine manure
January 1, 1999
The mass transfer coefficient for hydrogen sulfide emission from an aqueous solution and liquid manure into the air was determined using a convective emission chamber where air temperature, velocity,...
Nutrient Removal from swine lagoon liquid by Lemma minor 8627
January 1, 1999By Jiayang Cheng
Nitrogen and phosphorus removal from swine lagoon liquid by growing Lemna minor 8627, a promising duckweed identified in previous studies, was investigated under in vitro and field conditions. The...
Field evaluation of a wet pad scrubber for controlling dust and odor emissions
January 1, 1999
An evaporative cooling pad system was installed upwind of exhaust fans and downwind of pigs in a tunnel ventilated finishing building to determine effectiveness in reducing dust, ammonia, and odours....
Persistence of zoonotic pathogens in surface soil treated with different rates of liquid pig manure
January 1, 1999By Sagar M. Goyal
Zoonotic pathogens found in land-applied livestock manure may persist in the soil and be transported by runoff into surface waters, contributing to degradation of water quality. Manure management...
Land application of animal manure and phosphorus cycling in soil
January 1, 1999
Repeated land application of animal manure at rates to satisfy N requirements for crops may increase soil P to levels that cause environmental concern. Biochemical and microbiological parameters are...
Effects of chemical amendments on the gaseous emissions from swine manure
January 1, 1999
Control of emission of gases such as ammonia (NH3), hydrogen sulfide (H2S), carbon dioxide (CO2) and methane (CH4) is a major concern for large-scale swine producers. The use of chemical amendments...
