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Enhanced sequestration of commercial Auramine O dye in a Fenton oxidative decolourization process

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Title Enhanced sequestration of commercial Auramine O dye in a Fenton oxidative decolourization process
 
Creator Modi, Khyati K
Nath, Kaushik
 
Subject Auramine O dye sequestration
Fenton Advanced Oxidation Process
Chemical Oxygen Demand
Gas Chromatography-Mass Spectrography
 
Description 606-613
The present work investigates the Fenton degradation of commercial Auramine O dye from a model solution through
advanced oxidation process (AOP). The effects of initial pH, ferrous ion and H2O2 concentration have been evaluated with
respect to the extent of decolourization of the feed solution. A maximum decolourization to the tune of 91.8% is
accomplished at a pH of 3.0. The effect of various doses of Fe2+ and H2O2 on the percentage reduction in chemical oxygen
demand (COD) is investigated at a constant pH. 84.9% reduction of COD is obtained using a combination of 48 mL/L H2O2
and 6 g/L Fe2+. The gas chromatography-mass spectrometry analysis reveals the presence of toxic non-biodegradable
Auramine O dye in the model solution before the Fenton AOP, which is degraded into several compounds including CO2
after 30 min of Fenton AOP. The spectral output from FTIR analysis corroborates the molecular rearrangement during
Fenton process with consequent degradation.
 
Date 2023-09-06T11:50:53Z
2023-09-06T11:50:53Z
2023-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/62507
https://doi.org/10.56042/ijct.v30i5.5207
 
Language en
 
Source IJCT Vol.30(5) [September 2023]