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Advanced oxidation processes based on zero-valent aluminium for treating textile wastewater

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Title Advanced oxidation processes based on zero-valent aluminium for treating textile wastewater
 
Creator Khatri, Jayraj
Nidheesh, P. V.
Anantha Singh, T.S.
Suresh Kumar, M.
 
Subject Industrial Wastewater Treatment & Disposal
Water Pollution
Environmental Engineering
Waste Water Management
 
Description Treatment of textile wastewater by advanced oxidation processes (AOPs) based on zero-valent aluminium (ZVAl)
were carried out in the present study. COD removal efficiencies of ZVAl/O2, ZVAl/Fe3+/O2, ZVAl/Fe3+/O2/
H2O2 and ZVAl/Fe3+/O2/persulfate processes were monitored and optimized. Colour and ammoniacal nitrogen
removal efficiencies of each process at the optimal operating conditions were compared. Pollutant removal
efficiencies of AOPs were followed the order as: ZVAl/Fe3+/O2/H2O2 > ZVAl/Fe3+/O2/persulfate > ZVAl/
Fe3+/O2 > ZVAl/O2. Maximum COD, colour and ammoniacal nitrogen removal efficiencies of ZVAl-based
AOPs were found as 97.9%, 94.4% and 58.3%, respectively at 1 g/L ZVAl, 0.5 g/L Fe3+, 6.7 g/L H2O2 and after
3 h of contact time. External addition of tert-butyl alcohol to the processes revealed that in-situ hydroxyl and
sulfate radicals are the main oxidants responsible for the oxidation of pollutants. Overall, ZVAl-based AOPs are
efficient for treating effluents generating from textile industry.
 
Publisher Elsevier
 
Date 2018
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1263/1/2018%20Jayaraj%20Chem%20Eng%20J.pdf
Khatri, Jayraj and Nidheesh, P. V. and Anantha Singh, T.S. and Suresh Kumar, M. (2018) Advanced oxidation processes based on zero-valent aluminium for treating textile wastewater. Chemical Engineering Journal, 348. pp. 67-73. ISSN 13858947
 
Relation http://dx.doi.org/10.1016/j.cej.2018.04.074
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