Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/4909
Title: Decolourisation and detoxifying of Remazol Red dye and its mixture using Fenton's reagent
Authors: Meriç, S.
Selçuk, Hüseyin
Gallo, M.
Belgiorno, V.
Keywords: Acute toxicity removal
Azo dyes
Colour and COD removal
Fenton's reagent
Hydrogen peroxide, Daphnia magna
Remazol Brillant Blue
Remazol Red 120
Remazol Yellow 84
Alcohols
Concentration (process)
Detoxification
Iron compounds
Optimization
pH effects
Thermal effects
Toxicity
Decolorization
Dye composition
Feton's reagent (FR)
Remazol Brilliant Blue (RB)
Dyes
dye
Fenton reaction
Daphnia
Daphnia magna
Abstract: A systematic approach was followed to optimise pH, temperature and the doses of FeSO4 and H2O2 for Feton's reagent (FR) to decolourize and detoxify the solutions containing of Remazol Red 120 (RR) dye and its mixture with Remazol Brillant Blue (RB) and Remazol Yellow 84 (RY) reactive dyes. The acute toxicity of each dye composition was measured using D. magna. Optimum pH for RR singly used and for the dye mixture was found 3.5 while optimum temperature was determined 50°C, 40°C and 30°C for 100 mg/l of RR, 200 mg/l of RR and the dye mixture, respectively. More than 98% of colour and 92% of COD removal were obtained for the dye solutions. For obtaining high colour and COD removal H2O2 concentration had to be increased 3 times when RR concentration was doubled whereas FeSO4 was to be increased 2.5 times for the dye mixture. The results obtained indicate that FR can be assurely used for complete toxicity removal and obtaining high colour and COD efficiency with no toxic effluent on D. magna for the dye solutions studied. Acute toxicity test with H2O2 was useful to evaluate the complete oxidation resulting in practically no residual H2O2 (<3 mg/l) in the solution. © 2005 Elsevier B.V. All rights reserved.
URI: https://hdl.handle.net/11499/4909
https://doi.org/10.1016/j.desal.2004.09.002
ISSN: 0011-9164
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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