A5027887505- Radioactive element chemistry and processing
- Groundwater flow and contamination studies
- Environmental remediation with nanomaterials
- Radioactive contamination and transfer
- Geochemistry and Elemental Analysis
- Mine drainage and remediation techniques
- Radioactivity and Radon Measurements
- Toxic Organic Pollutants Impact
- CO2 Sequestration and Geologic Interactions
- Per- and polyfluoroalkyl substances research
- Recycling and Waste Management Techniques
- Geochemistry and Geologic Mapping
- Electrokinetic Soil Remediation Techniques
- Concrete and Cement Materials Research
- Microbial bioremediation and biosurfactants
- Metal Extraction and Bioleaching
- Extraction and Separation Processes
- Recycling and utilization of industrial and municipal waste in materials production
- Atmospheric chemistry and aerosols
- Constructed Wetlands for Wastewater Treatment
- Clay minerals and soil interactions
- Chromium effects and bioremediation
- Mercury impact and mitigation studies
- Methane Hydrates and Related Phenomena
- Phosphorus and nutrient management
Florida International University
2016-2025
University of Miami
2024
Florida Polytechnic University
2024
Applied Research (United States)
2008
Production of nuclear fuel has resulted in hazardous waste streams that have contaminated the soil and groundwater. Arthrobacter strains, G975, G968, G954 were used prescreening tests to evaluate their tolerance UO2 2+ investigate bacteria-U(VI) interactions under oxidizing pH-neutral conditions. Experiments shown G975 is fastest growing most uranium tolerant strain removed about 90% from growth media. Atomic Force Microscopy images exhibited an irregular surface structure, which perhaps...
The sequestration of metal ions into the crystal structure minerals is common in nature. To date, incorporation technetium(IV) iron has been studied predominantly for systems under carefully controlled anaerobic conditions. Mechanisms transformation phases leading to aerobic conditions remain poorly understood. Here we investigate granular metallic reductive technetium(VII) at elevated concentrations ambient We report retarded ferrihydrite magnetite presence technetium. observe that...
To prevent environmental release and exposure, it is essential to immobilize radioactive waste for long-term storage disposal. One constituent, long-lived radionuclide technetium-99 (99Tc), which primarily produced during the irradiation of uranium fuels in nuclear reactors, represents a significant risk human health environment. Zero-valent iron (ZVI) has shown promise reducing highly soluble Tc(VII) into less Tc(IV) form. However, presence other redox-reactive elements can compete with Tc...