A5031611184- Toxic Organic Pollutants Impact
- Per- and polyfluoroalkyl substances research
- Atmospheric chemistry and aerosols
- Arsenic contamination and mitigation
- Groundwater flow and contamination studies
- Environmental remediation with nanomaterials
- Water Treatment and Disinfection
- Pharmaceutical and Antibiotic Environmental Impacts
- Chromium effects and bioremediation
- Water Quality Monitoring and Analysis
- Advanced biosensing and bioanalysis techniques
- Microbial bioremediation and biosurfactants
- Odor and Emission Control Technologies
- Air Quality and Health Impacts
- Radioactive element chemistry and processing
- Chemical Analysis and Environmental Impact
- Chemistry and Chemical Engineering
Arcadis (United States)
2000-2025
Arcadis (Netherlands)
2021
Infrared matrix-assisted laser desorption electrospray ionization (IR-MALDESI) was coupled with high-resolution accurate-mass-mass spectrometry (HRAM-MS) to image perfluoroalkyl and polyfluoroalkyl substances (PFAS) in stabilized soil cores. Previous field-scale research demonstrated a substantial decrease the leachability of PFAS following application situ stabilization solidification (S/S) an aqueous film-forming foam (AFFF) source zone. While this previous study empirically confirmed...
A field-scale validation is summarized comparing the efficacy of commercially available stabilization amendments with objective mitigating per- and polyfluoroalkyl substance (PFAS) leaching from aqueous film-forming foam (AFFF)-impacted source zones. The scope this work included bench-scale testing to evaluate multiple application concentrations mitigate PFAS leachability execution soil mixing in an AFFF-impacted fire-training area nearly 2.5 years post-soil monitoring validate reductions...
Fire suppression systems are known to be impacted with residual, entrained per- and polyfluoroalkyl substances (PFASs) because of historical use aqueous film forming foam (AFFF) fluoroprotein foam. Amphiphilic PFASs aggregate at liquid:solid interfaces creating a hydrophobic layer which reduces the effectiveness water remove PFAS from layered surfaces. When fire transitioned fluorine free (F3) without appropriate cleaning, residual associated surfaces system can contaminate replacement F3....
Abstract A passive sampler designed to measure per‐ and polyfluoroalkyl substances (PFAS) was evaluated determine chemical uptake rates under a variety of conditions. The design is simple robust, using organosilica modified with cross‐linked amine polymer in an high density polyethylene housing retained polypropylene mesh. addition groups as weak ion‐exchange resin combination Cu 2+ promote binding short‐chain PFAS. five‐fold improvement perfluorobutanoic acid adsorption measured when added...
Abstract The objective of this work was to field‐demonstrate the Min‐Trap® sampler technology, a new in‐situ passive monitoring tool that offers distinct advantages for collecting mineralogical data. Min‐Trap consists solid porous medium (e.g., silica sand) contained within water‐permeable mesh and support housing is deployed inside well. serves as substrate upon which target minerals passively form. Analysis sample using chemical, microscopic, spectroscopic, or other techniques can provide...
Abstract The Mineral Trap, or Min‐Trap™, is a monitoring well‐based sampler designed to collect direct physical evidence of reactive mineral formation in situ without collecting soil rock core samples. Min‐Trap consists nonreactive granular medium (e.g., silica sand) within water‐permeable mesh pillows that are supported inside slotted polyvinyl chloride housing incubated conventional well. primary objective the this application minerals forming aquifer retrievable format can be submitted...
When fire suppression systems that held aqueous film forming foams (AFFF) are transitioned to per- and polyfluoroalkyl substance (PFAS)-free firefighting formulations, PFAS can dissolve from the wetted surfaces of release into new formulations. The overall objective this work was characterize residual mass on aircraft rescue (ARFF) vehicle on-board system components water, mixed foam concentrate with various geometries, materials construction, locations within system. ARFF were dismantled...
The Role of Treatability Studies in Industrial Wastewater TreatmentThe objective this paper is to provide guidance for the design, organization, and execution treatability studies, drawing on authors' experiences gained by conducting more than a hundred studies wide variety chemical, biological, physical treatment technologies, as well reviewing numerous conducted other groups. This focuses on...Author(s)Victor A. D'amatoAjit GhorpadeCarl SingerDavid S. LilesChristopher C....
IN SITU BIOREMEDIATION OF BIPHENYL AND ETHERThis paper summarizes the results of a pilot-scale test used to evaluate bioremediation potential Dowtherm® constituents in groundwater at former textile manufacturing facility Greenville, South Carolina. historically site as heat-transfer fluid mainly contains 1,1′-biphenyl (biphenyl) and biphenyl ether (BE). Aerobic was chosen as...Author(s)Patrick M. HicksNanjun V. ShettyDavid S. LilesSourceProceedings Water Environment FederationSubjectSession...