Publication: Treatment of a textile dye wastewater by an electrochemical process
Issued Date
2006-07-01
Resource Type
ISSN
15324117
10934529
10934529
Other identifier(s)
2-s2.0-33745092872
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering. Vol.41, No.7 (2006), 1183-1195
Suggested Citation
P. Fongsatitkul, P. Elefsiniotis, B. Boonyanitchakul Treatment of a textile dye wastewater by an electrochemical process. Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering. Vol.41, No.7 (2006), 1183-1195. doi:10.1080/10934520600656372 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/23255
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Title
Treatment of a textile dye wastewater by an electrochemical process
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Abstract
This study explored the effectiveness of an electrochemical process to treat a sulfur dye wastewater from a textile industry. The treatment system included a 4.0 L reactor equipped with five steel electrode plates, and a separate sedimentation tank of equal liquid volume. The experimental part involved two distinct, sequential stages. In the first stage, the effect of initial pH and electrical charge (i.e., current times reaction time) on the treatment process was explored. Experiments were conducted in a factorial mode, involving three initial pH values (3, 4 and 5), and six electrical charges (ranging from 150 to 1,350 coulomb), respectively. Results indicated that chemical oxygen demand (COD), total suspended solids (TSS), and color removal efficiency improved with a decrease in initial pH and an increase in electrical charge. Overall, high percent removal values were observed ranging from 63% to 80% for COD, 81% to 96% for TSS, and 93% to 99% for color. During the second stage, the electrode corrosion pattern was investigated for a period of 45 days. Under stable operating conditions, electrode consumption was found to conform to Faraday's law. Moreover, process performance regarding COD, TSS, and color reduction was comparable to that obtained in the first stage of the study. Copyright © Taylor & Francis Group, LLC.