Results 151 to 160 of about 1,286,063 (201)

Odors of swine waste lagoons

Agriculture, Ecosystems & Environment, 1989
Abstract A laboratory-scale lagoon was constructed and loaded with swine wastes while the temperature was varied from 30 to 1°C on a 120-day cycle. The lagoon was shown to generate particles in the 0.5–3-μm range. The number of particles ranged from 880 to 16 000 1−1 and was least when the temperature was low.
Earl G. Hammond, Cheryl Heppner, Richard Smith   +2 more
openaire   +1 more source

Molecular ecology of a facultative swine waste lagoon

Letters in Applied Microbiology, 2009
To investigate the microbial ecology of three facultative swine waste lagoons.Phylogenetic analysis of sequences in a 16S rRNA gene clone library and fluorescence in situ hybridization (FISH) analyses were used to assess bacterial diversity in a swine waste lagoon.
Goh, S. H. M., Mabbett, A. N., Welch, J. P., Hall, S. J., McEwan, A. G.   +4 more
openaire   +5 more sources

Isolation of Mycoplasma arginini from Swine and from a Swine Waste Disposal System

American Journal of Veterinary Research, 1978
SUMMARY Mycoplasma arginini was isolated from the pharynges and tonsils of 4 of 6 swine necropsied during an epizootic of respiratory tract disease and lameness. The organism was also isolated from 2 of 16 asymptomatic swine examined in the same herd approximately 10 months after the epizootic. In addition, M arginini, Acholeplasma laidlawii, and other
A P, Orning, R F, Ross, M F, Barile
openaire   +2 more sources

Composting of Separated Solid Swine Wastes

Journal of Agricultural Engineering Research, 1993
Abstract The effects of various bulking agents were examined on the efficiency of composting the fibrous solids obtained from swine manure after a liquid/solids separation process. The effects on the quality of the resulting composts were also examined.
K.V. Lo, A.K. Lau, P.H. Liao
openaire   +1 more source

DESIGN OF A BIOFILTER FOR SWINE WASTE FACILITY

Livestock Environment VII, 18-20 May 2005, Beijing, China, 2013
A biofilter was designed and constructed for odor abatement of the headspace above slurry in manure holding tanks at the Swine Research Unit (SRU) at the University of Kentucky Woodford County Animal Research Center. The SRU consists of separate animal facilities, covered manure storage tanks and manure handling capabilities.
null A.R. Green, null G.A. Watkins, null G.B. Day, null J.R. Barnett, null R.S. Gates   +4 more
openaire   +1 more source

Aeration experiments for swine waste composting

Bioresource Technology, 1992
Abstract A study was undertaken to investigate aeration in the composting of swine manure. Three sets of aeration experiments were conducted to determine the optimum aeration rate. Both continuous and intermittent modes of aeration were tested. Temperature was monitored as the most important indicator of the efficiency and effectiveness of the ...
A.K. Lau, K.V. Lo, P.H. Liao, J.C. Yu
openaire   +1 more source

Options for Centralized Management of Swine Waste

Journal of Environmental Engineering, 2002
Management of swine waste generated in North Carolina and other states is a challenging problem facing engineers, farmers, scientists, regulators, and policy makers. Technologies for processing and storing swine waste have not been fully developed and refined in a manner acceptable to the public and environmental regulators.
Ross M. Tabachow, Chase Stock, J. Jeffrey Peirce   +2 more
openaire   +1 more source

Swine Producers' Perceptions of Alternative Waste Management Systems

Journal of Sustainable Agriculture, 2006
A two-stage data collection approach was used to evaluate swine producers' perceptions of factors affecting the adoption of alternatives to the lagoon and sprayfield system. First, in-depth interviews were conducted with swine producers to collect qualitative information on perceived benefits and limitations of the current system.
Cates, Sheryl C., Chvosta, Jan, Wossink, Ada   +2 more
openaire   +2 more sources

Thermochemical conversion of livestock wastes: Carbonization of swine solids

Bioresource Technology, 2009
Slow pyrolysis or carbonization promotes the conversion of animal manures such as swine manure into charcoal. In this paper, the carbonizing kinetics of swine solids taken from different treatment stages were investigated with a thermogravimetric analyzer.
K S, Ro, K B, Cantrell, P G, Hunt, T F, Ducey, M B, Vanotti, A A, Szogi   +5 more
openaire   +2 more sources

Dewatering of phosphorus extracted from liquid swine waste

Bioresource Technology, 2006
Phosphorus (P) recovery from liquid swine manure is an attractive technology when on-farm application of liquid swine manure is not an option. We developed a technology that enables separation of this P, but its high moisture content makes transportation difficult. In this work, we investigated dewatering procedures to concentrate the P product. Sludge
Ariel A, Szögi, Matias B, Vanotti, Patrick G, Hunt   +2 more
openaire   +2 more sources