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Investigation of the Electrocoagulation Treatment of Cotton Blue Dye Solution using Aluminium Electrodes
10.1002/clen.200800019.abs
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 tfor CB removal were found to be 6.0, 11 V and 15 min, respectively. The removal efficiency increased with decreasing values ofC0and g. For a CB solution havingC0= 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.
Investigation of the Electrocoagulation Treatment of Cotton Blue Dye Solution using Aluminium Electrodes
10.1002/clen.200800019.abs
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 tfor CB removal were found to be 6.0, 11 V and 15 min, respectively. The removal efficiency increased with decreasing values ofC0and g. For a CB solution havingC0= 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.
Investigation of the Electrocoagulation Treatment of Cotton Blue Dye Solution using Aluminium Electrodes
Ahlawat, Renu (author) / Srivastava, Vimal Chandra (author) / Mall, Indra Deo (author) / Sinha, Shishir (author)
CLEAN – Soil, Air, Water ; 36 ; 863-869
2008-11-01
7 pages
Article (Journal)
Electronic Resource
English
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