Effective removal of nemacide fosthiazate from an aqueous solution using zero-valent iron

Effective removal of nemacide fosthiazate from an aqueous solution using zero-valent iron In this study, the removal of fosthiazate in an aqueous solution using zero valent iron (ZVI) and the related removal reaction mechanism were investigated. The results indicate that the dissipation of fosthiazate adheres to a pseudo-first order reaction law. The apparent rate constant of fosthiazate removal could be improved by increasing the ZVI dosage, control temperature and initial pH. The observed pseudo-first-order degradation rate constants (Kobs) of fosthiazate removal using ZVI were varied in the different electrolyte solutions, and were determined as follows: Kobs (MgSO4) < Kobs (KCl) < Kobs (Control) <Kobs (NaCl) < Kobs (CaCl2) < Kobs (NaNO3) < Kobs (Na2SO4). In addition, the effects of Fe2+ and Fe3+ ions on the fosthiazate removal were also investigated, and the fosthiazate removal efficiencies were measured as 1.3% and 5.7% with Fe2+ and Fe3+, respectively. The characterizations of ZVI before/after the reaction were employed to gain insight into the reaction mechanism. Finally, the main degradation products were investigated by means of an Agilent 1100 LC/MSD Ion Trap. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Environmental Management Elsevier

Effective removal of nemacide fosthiazate from an aqueous solution using zero-valent iron

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0301-4797
D.O.I.
10.1016/j.jenvman.2015.06.040
Publisher site
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Abstract

In this study, the removal of fosthiazate in an aqueous solution using zero valent iron (ZVI) and the related removal reaction mechanism were investigated. The results indicate that the dissipation of fosthiazate adheres to a pseudo-first order reaction law. The apparent rate constant of fosthiazate removal could be improved by increasing the ZVI dosage, control temperature and initial pH. The observed pseudo-first-order degradation rate constants (Kobs) of fosthiazate removal using ZVI were varied in the different electrolyte solutions, and were determined as follows: Kobs (MgSO4) < Kobs (KCl) < Kobs (Control) <Kobs (NaCl) < Kobs (CaCl2) < Kobs (NaNO3) < Kobs (Na2SO4). In addition, the effects of Fe2+ and Fe3+ ions on the fosthiazate removal were also investigated, and the fosthiazate removal efficiencies were measured as 1.3% and 5.7% with Fe2+ and Fe3+, respectively. The characterizations of ZVI before/after the reaction were employed to gain insight into the reaction mechanism. Finally, the main degradation products were investigated by means of an Agilent 1100 LC/MSD Ion Trap.

Journal

Journal of Environmental ManagementElsevier

Published: Sep 15, 2015

References

  • Removal mechanism of antibiotic metronidazole from aquatic solutions by using nanoscale zero-valent iron particles
    Chen, J.H.; Qiu, X.Q.; Fang, Z.Q.; Yang, M.; Pokeung, T.; Gu, F.L.
  • Insights into environmental remediation of heavy metal and organic pollutants: simultaneous removal of hexavalent chromium and dye from wastewater by zero-valent iron with ligand-enhanced reactivity
    Fu, F.L.; Han, W.J.; Tang, B.; Hu, M.; Cheng, Z.H.
  • Nitrate reduction by metallic iron
    Huang, C.P.; Wang, H.W.; Chiu, P.C.
  • Removal of organic load and phenolic compounds from olive mill wastewater by Fenton oxidation with zero-valent iron
    Kallel, M.; Belaid, C.; Mechichi, T.; Ksibi, M.; Elleuch, B.
  • Treatment of wastewater from acrylonitrile-butadiene-styrene (ABS) resin manufacturing by Fe0/GAC-ABFB
    Lai, B.; Zhou, Y.X.; Yang, P.
  • Reduction of azo dyes with zero-valent iron
    Nam, S.; Tratnyek, P.G.

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