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Advanced oxidation and mineralization of simazine using Fenton's reagent

Advanced oxidation and mineralization of simazine using Fenton's reagent

Journal of Hazardous Materials 168(2-3): 688-694

Removal of simazine from aqueous solution by Fenton's reagent oxidation was investigated. Box-Behnken statistical experiment design and the response surface methods were used to investigate the effects of simazine, H(2)O(2) and Fe (II) concentrations on simazine degradation and mineralization. Total organic carbon (TOC) and simazine removals were investigated at different reagent doses to determine the experimental conditions yielding the highest removal of simazine and TOC. Fe (II) concentration had more profound effect than H(2)O(2) for simazine removal while all parameters affected mineralization (TOC removal). Complete disappearance of simazine was achieved within 6 min reaction period. However, only 32% of simazine was mineralized after 15 min indicating formation of some intermediate products. The optimal H(2)O(2)/Fe (II)/simazine ratio resulting in the maximum pesticide (100%) and TOC removal (32%) was found to be 55/15/3 (mg L(-1)). The initial rate of simazine degradation was found to be first-order with respect to the initial simazine concentration.

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Accession: 051395501

Download citation: RISBibTeXText

PMID: 19297085

DOI: 10.1016/j.jhazmat.2009.02.091

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