Membranes provide flexible technologies, and various applications range from toxic pollutants removal to virus separations to desalination. The special features for membrane processes that make them attractive for industrial applications are their compactness, ease of fabrication, operation, and modular design. Traditionally membranes are used by exclusion of solutes by pre size control. But the integration of metal/metal oxide (iron, or bimetallic) particles in microfiltration type membrane pore domain allow catalytic detoxification (for ex, PCBs, TCE) of water through both reductive and oxidative pathways. Our technology development included functionalization (green chemistry) of membrane pores with pH responsive poly-acrylic acid, and then subsequent ion exchange of metal ions (Fe (II)) followed by reduction allowed in-situ synthesis of non-aggregated, reactive metal particles in pore domain. We address the need for targeted remediation strategies by developing integrated, cost-effective technologies which incorporate both reductive and oxidative strategies in order to allow the complete remediation of chlorinated organic compounds without the production of toxic byproducts. This is accomplished through the development of a polymer/membrane platform in both lab-scale and <b>full-scale</b> for environmentally benign nanostructured iron synthesis and the establishment of individual and combined technology strategies to reduce the toxicity of chloro-organics. In addition, the presentation will include translational activities of our iron/iron oxide functionalized membrane technology for trace metals separations from power plant water and oxidation of organics from produced water.  We acknowledge the funding by NIH-NIEHS-SRC, NSF EPSCoR program, and industries.<br/>

Metal functionalized nanostructured membrane technology for water remediation

254th National Meeting (2017)

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