Results 181 to 190 of about 41,657 (225)

Composting of separated solid swine manure

Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1993
Abstract A study was conducted to investigate the efficiency of the composting process when the initial moisture content is higher than the generally recommended limit of 65%. Solids separated from swine manure with very high moisture content were composted in small reactors with and without the addition of bulking agent.
P.H. Uao, A.T. Vizcarra, A. Chen, K.V. Lo   +3 more
openaire   +1 more source

Nitrogen Carryover from Swine Manure

2005
Swine manure or commercial fertilizer had been fall applied for the prior year(s) crop. Late spring soil nitrate tests and crop yield for the current year were collected to determine the value of nitrogen carryover.
Brenneman, L., Van Dee, Kevin
openaire   +2 more sources

MANURE VALUE AND LIVEWEIGHT SWINE DECISIONS

1996
Produced as a joint product, economic theory suggests that manure value could influence livestock management decisions such as herd size and optimal market weights. This study examines the concept of manure and its connection with optimal replacement age or market weight.
Roka, Fritz M., Hoag, Dana L., Roka, Fritz M., Hoag, Dana L.   +3 more
openaire   +1 more source

Co-composting of swine mortalities with swine manure and sawdust

Compost Science & Utilization, 2015
AbstractThe treatment of livestock fatalities caused by epidemic diseases must be timely. Simultaneously, the contaminated excreta and bedding materials must also be treated on site without removal. The composting of manure with bulking materials is widely used on the farm, and the temperature during the composting reaches over 60°C under appropriate ...
Seung-Gun Won, Ji-Young Park, Md Mukhlesur Rahman, Kyu-Hyun Park, Chang-Six Ra   +4 more
openaire   +1 more source

Impacts of swine manure pits on groundwater quality

Environmental Pollution, 2002
Manure deep-pits are commonly used to store manure at confined animal feeding operations. However, previous to this study little information had been collected on the impacts of deep-pits on groundwater quality to provide science-based guidance in formulating regulations and waste management strategies that address risks to human health and the ...
I G, Krapac, W S, Dey, W R, Roy, C A, Smyth, E, Storment, S L, Sargent, J D, Steele   +6 more
openaire   +2 more sources

Integrated process for anaerobically digested swine manure treatment

Bioresource Technology, 2019
An integrated three-step process was proposed for the treatment of the anaerobically digested swine manure (ADSM). The flocculation and struvite precipitation were used as the pre-treatment to remove the particles and reduce phosphorus to balance the condition for the algae growth.
Lu Wang, Min Addy, Jie Liu, Caitlyn Nekich, Renchuan Zhang, Peng Peng, Yanling Cheng, Kirk Cobb, Yuhuan Liu, Hualing Wang, Roger Ruan   +10 more
openaire   +2 more sources

Advanced swine manure treatment and utilization in Brazil

Bioresource Technology, 2009
Animal production has changed from subsistence to an industrial model, lowering production costs but giving rise to higher potential environmental impact. When the effluents are not correctly managed, serious pollution events can occur. In Brazil liquid manure is commonly stored in reception pits or covered lagoons (biodigestors), followed by land ...
A, Kunz, M, Miele, R L R, Steinmetz
openaire   +2 more sources

Free Fatty Acids and Sterols in Swine Manure

Journal of Environmental Science and Health, Part B, 2006
Free fatty acids and sterols were assessed in fresh manure and anaerobic lagoon sludge from swine production facilities in North Carolina. Eight free fatty acids and five sterols were identified and quantified in both manure and sludge samples.
John H, Loughrin, Ariel A, Szogi
openaire   +2 more sources

Examination of the Aerobic Microflora of Swine Feces and Stored Swine Manure

Journal of Environmental Quality, 2016
Understanding antibiotic resistance in agricultural ecosystems is critical for determining the effects of subtherapeutic and therapeutic uses of antibiotics for domestic animals. This study was conducted to ascertain the relative levels of antibiotic resistance in the aerobic bacterial population to tetracycline, tylosin, and erythromycin.
Terence R, Whitehead, Michael A, Cotta
openaire   +2 more sources

Carbapenem-Resistant Acinetobacter baumannii Recovered from Swine Manure

Microbial Drug Resistance, 2019
Recently, concerns have been raised about the possibility of Acinetobacter baumannii transmission between animals and humans. So far, A. baumannii has been reported in animals with which people can come into contact. The presence of this pathogen in animal manure presents an equally important public health risk.
Hrenović, Jasna, Šeruga Musić, Martina, Durn, Goran, Dekić Rozman, Svjetlana, Hunjak, Blaženka, Kisić, Ivica   +5 more
openaire   +3 more sources