The presence natural organic matter (NOM) plays an important role in the transport and fate of nanoparticles (NPs) in the aquatic environments. NOMs can mobilize and facilitate the transport of NPs, which increase the potential hazard of NPs. However, the chemical structure and reactivity of NOM is highly heterogeneous according to the origin and extraction method. Many researches used commercial or artificially synthesized NOMs that have no relevance to water treatment. In this study water from the Ohio river was ultrafiltered and lyophilized to obtained concentrated form of NOM . The NOM sample was characterized in terms of NMR, LC-MS, electrophoresis mobility, TGA-GC-MS, DSC techniques for structural characterization.  The influence of this NOM on the aggregation, transport and retention of  nano Ceria, ZnO, Ag and TiO2 was investigated.  The interaction on NPs and biofilms that are present in biologically active filter that are commonly found in water treatment plants were studied.

Characterization of natural organic matter from Ohio River and investigation of their influence on stability and transport of engineered nanoparticles in water filtration system

244th National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.