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Titre :
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Fenton and Fenton-like reaction followed by hydroxide precipitation in the removal of Ni(II) from NiEDTA wastewater : a comparative study (2010)
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Auteurs :
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Fenglian Fu, Auteur ;
Qi Wang, Auteur ;
Bing Tang, Auteur
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Type de document :
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Article : texte imprimé
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Dans :
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Chemical engineering journal (Vol. 155 N° 3, Decembre 2009)
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Article en page(s) :
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pp. 769-774
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Note générale :
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Génie Chimique
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Langues :
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Anglais
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Index. décimale :
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660
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Tags :
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NiEDTA wastewater FR-HP process Fenton reaction Fenton-like
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Résumé :
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It is difficult to remove Ni(II) from NiEDTA wastewater by many conventional processes. A new method for removing Ni(II) from NiEDTA wastewater by Fenton and Fenton-like reaction followed by hydroxide precipitation presents an important breakthrough. This treatment process is referred to as Fenton/Fenton-like reaction-hydroxide precipitation (FR-HP) process. This study investigated the use of FR-HP process for the removal of Ni(II) from NiEDTA complex wastewater. The removal efficiency of Ni(II) by FR-HP process was investigated and the kinetics of the two processes was studied. Results indicated that the removal efficiency was strongly dependent on the initial concentration of Fe2+ or Fe3+ and H2O2, initial and precipitation pH and temperature. Both FR-HP processes can effectively remove Ni(II). At optimal operation conditions, the removal efficiency of Ni(II) were 92.8% and 94.7% for Fenton and Fenton-like systems after 60 min, respectively. FR-HP process seems to be an economically and environmentally friendly process to remove the metal from metal–EDTA wastewater. Hopefully, FR-HP process will promote the development of metal–EDTA treatment technology.
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DEWEY :
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660
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ISSN :
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1385-8947
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En ligne :
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http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4X908Y5-3&_user=6909337&_coverDate=12%2F15%2F2009&_rdoc=29&_fmt=high&_orig=browse&_srch=doc-info(%23toc%235228%232009%23998449996%231562277%23FLA%23display%23Volume)&_cdi=5228&_sort=d&_docanch
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