Functional Classification of Swine Manure Management Systems based on Effluent and Gas Emission Characteristics
Posted in: Environment by admin on January 1, 2001 | No Comments
Gaseous emissions from swine manure storage systmes represent a concern to air quality due to potential effects of hyrodgen sulphid, ammonia, methane, and volatile organic ompounds on environmental quality and human health. The lack of kowledge concerning functional aspects of swine management systems has been a major obstacle in the development and optimization of emissions abatement technologies for these point source. In this system a classification system based on gas emission characteristics anf effluent concentrations of total phosphorus (P) and total sulfur (S) was dreived and tested on 29 swine manure management systems in Iowa, Oklahoma, and North Carolina in an effort to elucidate functional characteristics of these systems. Four manure management systems classes identified that differed in effluent concentrations of P and S, methane, odor intensity, and air concentrations of volatile organic compounds. Odor intensity and concentrations of VOC’s in air emitted from swine manure management systems strongly corresponded. Odor intensity and VOC’s in air emiited from sien manure systems were stringly correlated. The concentration of VOC in air samples was highest with odour swine manure management systems that recived a high input of volatile solids. These systems were also shown to have the highest odour intensity levels. The emission rate for VOC’s and odour intensity associated with swine management systems were inversely correlated with methane and ammonia emission rates. The emission rates od methane, ammonia, and VOC’s were found t be dependant upon manure loading rate and were directly influenced by animal numbers.
Study on the Effectiveness Two Field-Portable Near-Infrared Instruments for the Measurement of Metals and Minor Elements in Hog Manure
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The overall purpose of this project was to develop a field protocol for testing two field-portable near-infrared (NIR) spectrophotometers as on-site, free-standing (not in-line), measurement tools for nutrients in hog manure at the time of application of manure to agricultural land. This project is a developmental step between the analysis of hog manure in the laboratory using near-infrared spectroscopy (NIRS) and the deployment of NIR instruments in the manure stream for real-time measurement of composition of manure during application to land. The field-portable instruments included the Textron Systems Corp (USA)/Case NH (USA) ProSpectraa
Mechanism of Gas Release from Liquid Swine Wastes
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Optimization of Oil Sprinkling System Using Undiluted Canola Oil
Posted in: Prairie Swine Centre by admin on | No Comments
Current Engineering Projects at Prairie Swine Centre Inc.
Posted in: Prairie Swine Centre by admin on | No Comments
New engineering projects have begun in 2001 and many ongoing studies will come to completion over the course of 2002. Considering the stage of those experiments, no final analysis can be discussed yet. This paper presents an overview of current engineering research activities at PSCI by providing a brief description of each project.








