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Fenton-like Degradation of Reactive Dyes Catalyzed by Biogenic Jarosite
-
Zhaohui Wang
,
Dongxue Xiao
Published/Copyright:
November 30, 2016
Abstract
A kind of Fe mineral-biogenic jarosite was prepared by biooxidation of Fe2+ using Acidithiobacillus ferrooxidans. Decolorization of reactive dyes, Reactive Blue 19 (RB) and Reactive Orange 1 (RO), were conducted using asprepared jarosite as a catalyst in the presence of H2O2 via a Fenton-like reaction process. The experimental results indicated that jarosite can serve as an efficient Fe catalyst to initiate Fenton-like reaction in the process of dye decolorization. 98% of decolorization efficiency of RB was achieved within 105 min of reaction time by using 5 mM H2O2 and 1 g/L jarosite catalyst at pH 5.0. The current investigation may provide a practical and costseffective way using biogenic Fe minerals for remediation of wastewater contaminated with industrial colorants.
Received: 2013-8-5
Revised: 2014-1-3
Accepted: 2014-1-2
Published Online: 2016-11-30
Published in Print: 2014-1-1
© 2016 by Walter de Gruyter Berlin/Boston
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