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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2530
Title: Investigation of the electrocoagulation treatment of cotton blue dye solution using aluminium electrodes
Authors: Ahlawat R.
Srivastava, Vimal Chandra
Mall I.D.
Sinha, Shishir N.
Published in: Clean - Soil, Air, Water
Abstract: This study was performed to investigate the variables that influence the removal efficiency of an acid dye, i.e., cotton blue (CB) (chemical name: aniline blue WS) dye, from aqueous solution by an electrocoagulation (EC) technique. Batch EC studies were performed using aluminum electrodes to evaluate the influences of various experimental parameters, i.e., initial pH (pH0): 3-11, electrolysis time (t): 0-30 min, initial concentration (C0): 100-1000 mg/L, electrode gap (g): 0.5-1.3 cm, number of electrodes (N): 4-10, and applied voltage (Vap): 7-11 V, on the removal of CB dye. The optimum values of pH0, Vap and t for CB removal were found to be 6.0, 11 V and 15 min, respectively. The removal efficiency increased with decreasing values of C0 and g. For a CB solution having C0 = 100 mg/L, 97% removal efficiency was obtained at the optimized conditions. It was found that the EC sludge can be dried and thermally degraded. The bottom ash obtained after its combustion can be blended with cementitious mixtures. This approach for EC sludge disposal ensures energy recovery along with safe disposal of the EC sludge. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Citation: Clean - Soil, Air, Water (2008), 36(44115): 863-869
URI: https://doi.org/10.1002/clen.200800019
http://repository.iitr.ac.in/handle/123456789/2530
Issue Date: 2008
Keywords: Aniline blue WS
Decolorization
Electrocoagulation
Electrode gap
Sludge disposal
Textile dye
ISSN: 18630650
Author Scopus IDs: 36193556900
35565811700
55664368900
7403739121
Author Affiliations: Ahlawat, R., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Chandra Srivastava, V., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Mall, I.D., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Sinha, S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
Corresponding Author: Mall, I. D.; Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; email: id_mall2000@yahoo.co.in
Appears in Collections:Journal Publications [CH]

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