Investigation of electrochemical variables and performance of a continuous upflow electrocoagulation process in the treatment of reactive blue 140
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Publication Details
Author list: Phalakornkule C., Karakat B., Nuyut T., Ruttithiwapanich T.
Publisher: Wiley
Publication year: 2010
Journal: Water Environment Research (1061-4303)
Volume number: 82
Issue number: 12
Start page: 2325
End page: 2332
Number of pages: 8
ISSN: 1061-4303
eISSN: 1554-7531
Languages: English-Great Britain (EN-GB)
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Abstract
This study presents an investigation of electrochemical variables in the operation of a continuous upflow electrocoagulation process in treating textile wastewater. Reactive Blue 140, which is porphyrin-based, was used as a representative dye in the experiments. The optimal values of the design and operating parameters were found, from a batch mode, to be the following: iron anode, distance between electrodes of 8 mm, current density of at least 30 A/m2, and contact time of at least 5 minutes. These optimal values were used to design a continuous upflow electrocoagulation reactor. The pattern of liquid flow within the upflow reactor was studied using a computational fluid dynamics (CFD) program, which simulated the flow behavior inside the reactor using the finite volume method. For optimal parameter values, the water passing the electrode plates had a uniform distribution, and the reactor performance was satisfactory, with >90% color removal and energy consumption of approximately 1.4 kWh/m3. ฉ 2010 Publishing Technology.
Keywords
Electrocoagulation, Upflow reactor