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189331 https://hdl.handle.net/2286/R.2.N.189331 http://rightsstatements.org/vocab/InC/1.0/ All Rights Reserved 2023 101 pages Masters Thesis Academic theses Text eng Yu, Xi Kavazanjian, Edward EK Salifu, Emmanuel ES Khodadadi Tirkolaei, Hamed HK Arizona State University Partial requirement for: M.S., Arizona State University, 2023 Field of study: Civil, Environmental and Sustainable Engineering Enzyme-Induced Carbonate Precipitation (EICP) has emerged as a promising biogeotechnical solution for mitigating fugitive dust emissions. EICP mitigates fugitive dust emissions by inducing carbonate precipitation to bind soil particles together and enhance soil strength. Traditional dust mitigation approaches, such as applying water and chemical treatments, are limited by concerns surrounding cost, safety, and sustainability. In contrast, EICP treatment may offer a more eco-friendly and sustainable strategy for controlling fugitive dust emissions. Nevertheless, the lack of field-scale implementation has impeded the adoption of EICP treatment. This study is part of a larger effort to demonstrate the efficacy of EICP treatment at the field-scale by performing bench-scale and field-scale testing on three distinct soil types obtained from different field sites. The three soil types included a silty sand from fallow farmland in Pinal County, Arizona, clayey sand from an interim soil cover at a landfill site in Maricopa County, Arizona, and mine tailings from an abandoned mine site in Yavapai County, Arizona. Testing conducted for this research included evaluating wind erosion resistance using the Portable In-Situ Wind Erosion Laboratory ( PI-SWERL) on untreated and EICP-treated materials as well as soil characterization and penetrometer tests. The characterization tests included micro-scale analysis methods, such as carbonate content, scanning electron microscopy (SEM), and X-ray diffraction (XRD. The results of this study demonstrate the ability of EICP to mitigate fugitive dust in three different geotechnical materials by forming a soil crust on the ground surface via the precipitation of carbonate. Civil Engineering biocementation biogeotechnics Eicp Fugitive dust mitigation Geotechnology Soil stabilization Laboratory and Field Testing in Support of Field Studies of Enzyme Induced Carbonate Precipitation (EICP) for Fugitive Dust Control