A5013111556- Groundwater flow and contamination studies
- Fire dynamics and safety research
- Geophysical and Geoelectrical Methods
- Geophysical Methods and Applications
- Thermochemical Biomass Conversion Processes
- Enhanced Oil Recovery Techniques
- Fire effects on ecosystems
- Electrokinetic Soil Remediation Techniques
- Combustion and Detonation Processes
- CO2 Sequestration and Geologic Interactions
- Soil and Unsaturated Flow
- Hydraulic Fracturing and Reservoir Analysis
- Environmental remediation with nanomaterials
- Flame retardant materials and properties
- Combustion and flame dynamics
- Toxic Organic Pollutants Impact
- Microbial bioremediation and biosurfactants
- Coal Properties and Utilization
- Coal Combustion and Slurry Processing
- Heat and Mass Transfer in Porous Media
- Seismic Waves and Analysis
- Wind and Air Flow Studies
- Radioactive element chemistry and processing
- Atmospheric and Environmental Gas Dynamics
- Mineral Processing and Grinding
Western University
2015-2024
University of Edinburgh
2003-2012
Queen's University
1998-2003
Charles River Laboratories (United States)
1979
United States Department of the Navy
1979
In this work, the constitutive relationship between capillary pressure ( P c ), saturation S w and fluid‐fluid interfacial area per volume (IFA) is characterized using computed microtomography for drainage imbibition experiments consisting of a nonaqueous phase liquid water. The experimentally measured was compared to thermodynamic model that relates under − curve total IFA, n , capillary‐associated nw . Surfaces were fit experimental modeled data in order characterize three dimensions (3D)....
This study explored smoldering combustion for remediating polyfluoroalkyl substance (PFAS)-impacted granular activated carbon (GAC) and PFAS-contaminated soil. GAC, both fresh PFAS-loaded, was employed as the supplemental fuel supporting in mixtures with sand (≈175 mg PFAS/kg GAC-sand), PFAS-spiked, laboratory-constructed soil (≈4 soil), a PFAS-impacted field (≈0.2 soil). The fate of PFAS fluorine quantified emission analyses, including targeted suspect screening well hydrogen fluoride total...
Smoldering combustion, the slow burning process associated typically with porous solids (e.g., charcoal), is here proposed as a novel remediation approach for nonaqueous phase liquids (NAPLs) embedded in media. Several one-dimensional vertical smoldering experiments are conducted on quartz sand containing fresh coal tar at an initial concentration of 71 000 mg/kg (approximately 25% saturation) and employing upward darcy air flux 4.25 cm/s. Following short-duration energy input to achieve...
Smoldering combustion has been introduced recently as a potential remediation strategy for soil contaminated by nonaqueous phase liquids (NAPLs). Published proof-of-concept experiments demonstrated that the process can be self-sustaining (i.e., requires energy input only to start process) and achieve essentially complete of soil. Those initial indicated may applicable across broad range NAPLs soils. This work presents results series bench-scale examine in detail sensitivity key parameters,...
Self-sustaining treatment for active remediation (STAR) is an emerging, smoldering-based technology nonaqueous-phase liquid (NAPL) remediation. This work presents the first in situ field evaluation of STAR. Pilot tests were performed at 3.0 m (shallow test) and 7.9 (deep below ground surface within distinct lithological units contaminated with coal tar a former industrial facility. Self-sustained smoldering (i.e., after in-well ignition heater was terminated) demonstrated water table time....
This study proposes and proves (in concept) a novel approach of combining electrokinetic (EK)-assisted delivery an oxidant, persulfate (PS), low temperature electrical resistivity heating (ERH), to activate PS, achieve remediation contaminated, permeability soil. unique combination is able overcome existing challenges in remediating materials, particularly associated with delivering remediants. A further benefit the use same electrodes for both EK ERH phases. Experiments were conducted...
A new approach for the rapid destruction of human waste using smouldering combustion is presented. Recently, self-sustaining was shown to destroy organic component simulated solid and dog faeces resulting in sanitization all pathogens a batch process (Yermán et al., 2015). Here, continuous demonstrated first time, allowing much smaller reactor size less energy input per mass treated. The self-sustained mixed with sand evaluated over long periods (more than 16 h) based on single ignition. key...
Poor sanitation results in increased spread of diseases and environmental pollution. In many parts the globe, treatment feces needs an urgent solution that ensures elimination pathogens using minimal resources. Self-sustaining smoldering combustion mixed with sand has been recently studied as a potential technology. A combination different experimental parameters is essential to ensure robust operation, where oxidation coexists pyrolysis water evaporation. This work presents series...