A5028898011- Atmospheric and Environmental Gas Dynamics
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Advanced oxidation water treatment
- Petroleum Processing and Analysis
- Oil, Gas, and Environmental Issues
- Toxic Organic Pollutants Impact
- Arsenic contamination and mitigation
- Electrochemical Analysis and Applications
- Analytical chemistry methods development
- Microbial bioremediation and biosurfactants
- Mercury impact and mitigation studies
- Advanced Photocatalysis Techniques
- Advanced Chemical Sensor Technologies
- Oil and Gas Production Techniques
- Ion-surface interactions and analysis
- Pharmaceutical and Antibiotic Environmental Impacts
- Environmental remediation with nanomaterials
- Reservoir Engineering and Simulation Methods
- Heavy metals in environment
- Mass Spectrometry Techniques and Applications
- Atmospheric chemistry and aerosols
Oak Ridge National Laboratory
2017-2021
University of Tennessee at Knoxville
2016-2021
National Energy Technology Laboratory
2013-2019
United States Department of Energy
2019
Oak Ridge Associated Universities
2011-2019
Oak Ridge Institute for Science and Education
2011-2013
This study offers insight into the roles anodic and cathodic processes play in electrochemically activated persulfate (EAP) screens EAP as a viable technique for ciprofloxacin degradation wastewater. Sulfate radical formation at boron-doped diamond (BDD) anode activation graphite cathode were experimentally elucidated using different electrolytes electrochemical setups. Rapid transformation occurred via pseudo-first-order mechanisms with respect to electrolyte, reaching 84% removal 120 min...
Production of unconventional oil and gas continues to rise, but the effects high-density hydraulic fracturing (HF) activity near aquatic ecosystems are not fully understood. A commonly used biocide in HF, 2,2-dibromo-3-nitrilopropionamide (DBNPA), was studied microcosms HF-impacted (HF+) versus HF-unimpacted (HF-) surface water streams (i) compare microbial community response, (ii) investigate DBNPA degradation products based on past HF exposure, (iii) response differences similarities...
Chemical changes to hydraulic fracturing fluids (HFFs) within fractured unconventional reservoirs may affect hydrocarbon recovery and, in turn, the environmental impact of oil and gas development. Ethoxylated alcohol surfactants, which include alkyl ethoxylates (AEOs) polyethylene glycols (PEGs), are often present HFF as solvents, non-emulsifiers, corrosion inhibitors. We detailed analysis polyethoxylates at time injection into three hydraulically Marcellus Shale wells produced water...
Abstract Hydraulic fracturing has allowed oil and natural gas producers in the U.S. to effectively tap reservoirs that would otherwise be unfeasible produce. In recent years, industry experienced a boost production through increased use of hydraulic shale tight sand formations. Despite its advantages, process is not without concerns. utilizes large quantities water which, together with number chemical additives known as ‘fracturing fluid’, are injected into underground After being injected,...
Ethylene glycol monobutyl ether (EGBE), also known as 2-butoxyethanol (2-BE), has been identified a contaminant in hydraulic fracturing fluids. In order to determine the presence of 2-BE chemical additives, reliable method for recovering from aqueous phases by liquid-liquid extraction combined with gas chromatography/mass spectrometry (GC/MS) was established. The applied samples matrices containing various amounts salt. Using methylene chloride sample solvent ratio 1:3, ≥99% recovery may be...
As a global environmental pollutant, mercury (Hg) threatens our water resources and presents substantial risk to human health. The rate extent of immobilization Hg