Drinking Water Treatment
Aerogel & Iron-Oxide Impregnated Granular Activated Carbon Media For Arsenic Removal
Arsenic Removal by Activated Carbon
Source : https://www.awwa.org/Policy-Advocacy/AWWA-Policy-Statements/Research
Prepared by: Paul Westerhoff, Department of Civil and Environmental Engineering, Arizona State University Tempe, AZ 85287-5306
Tanju Karanfil, Department of Environmental Engineering and Science Clemson University, Anderson, SC 29625
John Crittenden, Department of Civil and Environmental Engineering, Arizona State University Tempe, AZ 85287-5306
The goal of this project is to validate proof-of-concept testing for iron enriched granular activated carbon (GAC) composites (aerogel-GAC or iron-oxide impregnated) as a viable adsorbent for removing arsenic from groundwater and conduct technical and economic feasibility assessments for these innovative processes. Specific project objectives include: • Conduct batch experiments for aerogel-GAC and Fe-oxide impregnated GAC composites to evaluate their performance removing arsenic.
• Evaluate Fe-GAC media performance in rapid small scale column tests (RSSCTs) to assess arsenic removal in a more dynamic treatment system.
• Evaluate Fe-GAC potential for removal of other contaminants (e.g., methyl tertiary butyl ether, dissolved organic carbon).
• Characterize Fe-GAC media.
• Correlate performance and media characterization for possible selection of two media for a future second phase of this project.
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