Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Dairy waste"”.
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Characterization of Biogas from Anaerobically Digested Dairy Waste for Energy Use
As the third largest dairy producer in the United States, New York is faced with the critical issue of agricultural waste management. The environmental impacts and high long-term costs of poor waste disposal have pushed the industry to realize the potential of turning this problem into an economic …
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Evaluating the Fate of Manure Nitrogen in Confined Dairy Waste Operations: a Full-Scale Waste Analysis and Start-Up Protocol for an Anammox-Based Treatment Technology Applicable to Dairy Waste Management
… for the removal of ammonium nitrogen from dairy waste, a novel biological wastewater treatment process, utilizing anaerobic ammonium oxidation (anammox), referred to as Oxygen-Limited Autotrophic Nitrification and Denitrification (OLAND) was examined. Due to the potential use of OLAND-based …
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Risk assessment formulation for nitrate leaching
… water pollution from the application of liquid dairy manure to agricultural fields was developed and applied. The GLEAMS (Groundwater Loading Effects of Agricultural Management Practices) (Ver 2.1) model was used to simulate NO₃-N leaching below the root zone for different land application rates …
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Evaluation of Odor-Reducing Commercial Products for Animal Waste
… tested for their efficacy in reducing odors from dairy and swine wastes. A sensory panel method was utilized for odor evaluations, in which the panel played an important part. Comparisons between products were made for agitated and unagitated conditions and effect of storage time (three weeks in …
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Evaluation of Factors Affecting Digestibility of the Fibrous Portion of Ruminant Diets
… greater role during periods of high feed intake. Waste fiber from dairy cattle, collected with a liquid/solid separator, was evaluated as a roughage source for growing lambs. Fresh dairy waste fiber (DWF) was either mixed with ground alfalfa hay at 0, 10, or 25% (DM) at feeding or ensiled at 0, …
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Weed seed survival in an agriculturally-based anaerobic digester
… Fall Panicum seeds which may be present in the waste. Dairy waste containing Johnsongrass and Fall Panicum seeds were subjected to batch and continuously-fed anaerobic fermentation processes in laboratory-scale digesters. The effect of influent solids concentration (4% and 6%) and retention time …
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Fermentation characteristics and nutritional value of stored and fresh dairy cattle waste ensiled with crop residues
… the optimum combination of slurry and fresh dairy waste and crop residues to achieve good ensiling. Slurry waste that had been accumulated in slurry storage tanks and dairy waste scraped from the barn were ensiled with ground corn stover, with and without the addition of 5% molasses, to …
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Engineering analysis of a Chinese-type anaerobic digester
… of spherical Chinese digesters receiving dairy waste. Sixteen laboratory-scale (3L) reactors were operated in the mesophilic temperature range (35°C±2°C) and were subjected to hydraulic retention times (HRT) of 8, 10, 15, and 20 days and influent substrate concentrations (S₀) of 40.1, …