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Showing 1 to 18 of 18 for “"manure treatment"”.
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Removal of Estrogens at Full and Pilot Scale Livestock Manure Treatment Systems
… to 1) develop appropriate methods for livestock manure estrogen analysis; 2) determine estrogen removal in different manure treatment systems; and 3) determine estrogen removal from dairy manure in pilot scale reactors. In Experiment I, the recoveries of 17Ã -estradiol (E2) and estriol (E3) were …
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Application of Hydrothermal Carbonization, Membrane Distillation, and Algae Cultivation for Sustainable Dairy Manure Treatment
… also increased the concentration of localized manure that can lead to environmental concerns such as greenhouse gas emissions or eutrophication. This dissertation investigates a sustainable alternative to conventional dairy manure treatment methods that incorporates hydrothermal carbonization …
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Microwave-based Pretreatment, Pathogen Fate and Microbial Population in a Dairy Manure Treatment System
… are two effective ways of treating dairy manure for recovering biogas and phosphorus. Anaerobic digestion of dairy manure is commonly limited by slow fiber degradation, while one of the limitations to struvite precipitation is the availability of orthophosphate. The aim of this work was to …
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Response of Soil and Water Quality to Winter Manure Application from Small Agricultural Watersheds in South Dakota
… for the livestock producers to manage the manure generated at the farm. The South Dakota Department of Environmental and Natural Resources does not recommend manure application in the state during the winter months when the ground is frozen. Thus, producers are left with the options such as …
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Long-term effects of copper rich swine manure application on continuous corn production
… response to high Cu levels from Cu rich swine manure and CuS0₄ applications. The field research was conducted on soils with diverse properties, i.e., on a Bertie fine sandy loam (Aquic Hapludults), a Guernsey silt loam (Aquic Hapludalfs), and a Starr-Dyke clay loam (Fluventic DystrochreptsTypic …
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Comparison of Dairy Manure Anaerobic Digestion Performance in Gas-lift and Bubble Column Digesters
… the most promising management options for dairy manure treatment. Manure wastewater from dairy farms has been used for methane production for decades. However, performance failure due to inadequate mixing is routine. In general, the mixng of anaerobic digester is achived throguh mechnical …
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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
… 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 systems in dairy manure management, a …
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Impact of Manure Management Practices on the Environmental Fate of Antibiotics in Manure-Applied Fields
… and antibiotic resistance genes from animal manure applied to soil as fertilizer are now among the most concerned contaminants in soil. The widespread use of antibiotics in livestock might amplify the risk of developing antibiotic resistance, causing once treatable diseases to turn deadly. …
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Conservation of Nitrogen via Nitrification and Chemical Phosphorus Removal for Liquid Dairy Manure
… conserve nitrogen (N) via nitrification in dairy manure, (2) determine the effect of recycled flush water on the bio-availability of N during nitrification, and (3) determine effective and economical dosages of chemicals to remove phosphorus (P) from liquid dairy manure. Intermittent aeration …
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Fate and transport of antibiotic resistant bacteria and resistance genes in artificially drained agricultural fields receiving swine manure application
… in their excrement. Application of swine manure to agricultural fields as fertilizer creates a pathway for antibiotic resistant bacteria and their associated resistance genes to enter the environment. This study monitored enterococci, tylosin resistant enterococci and four genes known to …
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Corn response to long-term application of CuSO₄, ZnSO₄ and Cu-enriched pig manure
… from either sulfate sources or Cu-enriched pig manure. The studies were designed to investigate the effects of Cu and Zn in soils and corn (Zea mays L.). The first field study consisted of continuing a longterm field experiment which was established in 1967 to evaluate corn response and changes …
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The role of living plant roots and cattle manure as a soil amendment in the alleviation of compacted coal mine soils
… through appropriate application of cattle manure and planting of pasture species. A review on literature, some studies indicate that the application of organic manure amendments such as cattle manure may overcome the negative effects of compaction, due to the beneficial effects on soil …
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Sequential extraction of Cu from soil components and Cu-amended soils
… the laboratory with added CuSO₄ or high-Cu swine manure. The evaluation procedure consisted of measuring desorption of Cu from a selection of clay minerals, organic materials, and hydrous oxides using reagents suggested in the literature. Adsorption of Cu by these materials was performed at pH 3.5 …
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Soil conditions and early crop growth after repeated manure applications
… and cattle industries has led to an increase of manure application to agricultural lands in Saskatchewan. Studies have been conducted to determine the nutrient benefits of swine manure application. However, a need was also identified for information on the effects of manure application on soil …
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Effect of soil amendments on the chemical transformation of arsenic and the microbial diversity in rice paddy microbiome
… Different soil amendments such as animal manure in flooded paddy soil could enhance arsenic reductive mobilization, biomethylation, and volatilization which could be a useful option for the arsenic detoxification process. Also, arsM genes in composting manure could enhance arsenic …
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Characterizing the fate and transport of chemicals of emerging concern (CECs) from swine manure during waste to energy processes
Animal manure and domestic wastewater contain chemicals of emerging concern (CECs) that can threaten ecosystems and human health. For instance, estrone (E1) and 17β-estradiol (E2) can disrupt the reproductive biology of vertebrates at very low concentrations. This study investigates the effects of …
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Enhanced Biological Phosphorus Removal for Liquid Dairy Manure
… has been widely used in municipal wastewater treatment, but no previous studies have examined the application of EBPR to treat dairy manure. This study was conducted to evaluate the (i) performance of pilot-scale EBPR systems treating liquid dairy manure, to balance the ratio of nitrogen to …
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Optimization of Biological Nitrogen Removal From Fermented Dairy Manure Using Low Levels of Dissolved Oxygen
… nitrogen (TAN) from solids-separated dairy manure. An anaerobic fermenter, upstream of the N removal reactor, produced volatile fatty acids (VFAs), to be used as an electron donor to fuel denitrification, and TAN at a COD:N ratio of 18:1. However, sufficient amounts of non-VFA COD was …