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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 6 of 6 for “"Ammonia flux"”.
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Integrating Machine Learning Into Process-Based Modeling to Predict Ammonia Losses From Stored Liquid Dairy Manure
… environmental pollution challenges. However, ammonia loss through volatilization during storage remains a challenge. Quantifying these losses is necessary to inform decision-making processes to improve manure management, and design ammonia mitigation strategies. In 2003, the National Research …
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Mathematical Modeling for Nitrogen Removal via a Nitritation: Anaerobic Ammonium Oxidation-Coupled Biofilm in a Hollow Fiber Membrane Bioreactor and a Rotating Biological Contactor
Mathematical models of a nitritation: anaerobic ammonia oxidation (anammox)-coupled biofilm in a counter-diffusion hollow fiber membrane bioreactor (HFMBR) and a nitritation: anammox-coupled biofilm in a co-diffusion rotating biological contactor (RBC) were developed and implemented using AQUASIM. …
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Biosphere-atmosphere exchange of ammonia from a fertilized corn canopy in Central Illinois
… This research seeks to provide new measured NH3 fluxes through an experimental field campaign in central Illinois, to investigate dependence of NH3 flux on environmental conditions and field management practices, and to evaluate closure of field measurements and modeled NH3 fluxes. Two …
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Study on impacts of aviation emissions and related dynamics and chemistry
… health. A sensitivity study with doubled ground ammonia flux shows the high dependence of aviation induced aerosol increase near the ground on background ammonia. This indicates that the aerosol perturbations resulting from aviation emissions are within models’ uncertainty range.
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Treatment of High-Strength Nitrogen Wasetewater With a Hollow-Fiber Membrane-Aerated Biofilm Reactor: A Comprehensive Evaluation
… A mechanistic model for oxygen concentration and flux as a function of length along the non-porous membrane fibers that comprise the HFMBR was developed based on material properties and physical dimensions. This model reflects the diffusion mechanism of non-porous membranes; namely that oxygen …
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The Effects of Manure Handling and Dietary Protein on Ammonia Fluxes from a Flush Dairy
Atmospheric ammonia (NH₃(g)) poses an environmental concern mainly due its ability to form fine particulate matter (PM2.5 with a diameter smaller than 2.5 micrometers) in the form of ammonium nitrate (NH₄NO₃) and ammonium sulfate ([NH₄]₂SO₄). These forms of PM2.5 may reduce visibility, contribute …