The application of nano zerovalent iron (nZVI) in the treatment of groundwater contaminated with chlorinated hydrocarbons (CHCs) and other halogenated organics has been studied by numerous researchers, yet fundamental questions such as the long-term reactivity and particle stability, and the treatment potential of the synthesized iron nanoparticles have not been fully understood. In the present study, the potential of nZVI synthesized by borohydride method and stabilized with Carboxymethylcellulose Salt (CMC) and its reactivity in different aqueous medium towards chlorinated methanes and chlorinated ethenes are investigated. The present work examined in detail the kinetics of carbon tetrachloride degradation by CMC-stabilized nZVI and Ni-nZVI and its byproducts. The study examines the following: (i) the role of CMC concentration in affecting the reactivity of stabilized nZVI and Ni-nZVI in aqueous media; and (b) the effect of Ni loading in Ni-nZVI. Other experimental variables include studying the effects of the nZVI and Ni-nZVI concentration on its reactivity in batch reactors.

Reactivity of nano zero-valent iron (nZVI) and Ni-modified nano zero-valent iron (Ni-nZVI) stabilized with carboxymethylcellulose towards chlorinated hydrocarbons

251st National Meeting (2016)

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