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Sustainable Drinking Water Treatment: Using Weak Base Anion Exchange Sorbents Embedded With Metal Oxide Nanoparticles to Simultaneously Remove Multiple Oxoanions


Abstract Ion exchange sorbents embedded with metal oxide nanoparticles can have high affinity and high capacity to simultaneously remove multiple oxygenated anion contaminants from drinking water. This research pursued answering the question, “Can synthesis methods of nano-composite sorbents be improved to increase sustainability and feasibility to remove hexavalent chromium and arsenic simultaneously from groundwater compared to existing sorbents?” Preliminary nano-composite sorbents outperformed existing sorbents in equilibrium tests, but struggled in packed bed applications and at low influent concentrations. The synthesis process was then tailored for weak base anion exchange (WBAX) while comparing titanium dioxide against iron hydroxide nanopar... (more)
Created Date 2016
Contributor Gifford, James McKay (Author) / Westerhoff, Paul (Advisor) / Hristovski, Kiril (Advisor) / Chester, Mikhail (Committee member) / Arizona State University (Publisher)
Subject Environmental engineering / Civil engineering / Sustainability / Arsenic / Drinking Water / Hexavalent Chromium / Life Cycle Assessment / Nanotechnology / Simultaneous Removal
Type Doctoral Dissertation
Extent 294 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Civil and Environmental Engineering 2016
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis