Abstract
In this research, the ultrasonic-assisted treatment of multiple model systems by air-stable nanosized zero-valent iron was investigated. The sample of air-stable nanosized zero-valent iron was produced by chemical precipitation of iron (III) at oxide-hydroxide phase, reduction in hydrogen flow at 400 C, and passivation in technical grade nitrogen. The ions of lead (II), copper (II) and zinc (II) were selected as contaminants. The maximum removal rates of the contaminant ions were observed during ultrasonic treatment. The optimum conditions of treatment (nanoscale zero-valent iron concentration and duration of treatment) have been found. The obtained results provide an opportunity of short-term, less reagent, less reagent-consuming ultrasound-assisted treatment for industrial applications.
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