Abstract
The effect of sonication time on removal efficiency of Ni2+ and Co2+ from wastewater in the presence of zero valence iron (ZVI) nanoparticles is described. The results showed that the presence of cobalt ions in the solution enhances the removal efficiency of nickel by ZVI nanoparticles to about 64% which is one of the advantages of this protocol.
Highlights
Zero valence materials are important for the PRB facilities
E effect of sonication time on removal efficiency of Ni2+ and Co2+ from wastewater in the presence of zero valence iron (ZVI) nanoparticles is described. e results showed that the presence of cobalt ions in the solution enhances the removal efficiency of nickel by ZVI nanoparticles to about 64% which is one of the advantages of this protocol
ZVI particles typically have a core-shell structure with the core being zero valence iron (Fe0) and the shell being iron oxides/hydroxides due to the iron oxidation. is structure presents the ZVI nanoparticles with high surface and unique redox potential properties for removal and transformation of contaminants [25, 27, 28]. e removal efficiency is related to the surface area or the size of used ZVI nanoparticles, the pH, and composition of the solution
Summary
Zero valence materials are important for the PRB (permeable reactive barrier) facilities. PRBs have been developed and used to treat contaminated ground water by different contaminants [1–8] In these barriers, zero valence iron (ZVI) can be used as a reactive material to reduce and stabilize different types of ions. High surface reactivity of ZVI nanoparticles have been used for in situ remediation of several kinds of contaminants. Is structure presents the ZVI nanoparticles with high surface and unique redox potential properties for removal and transformation of contaminants [25, 27, 28]. There is no report on the application of sonication in these systems In this regard, particular attention is devoted to the effect of sonication on the removal of nickel and cobalt pollutants by ZVI nanoparticles near neutral pH value
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