Journal
DESALINATION
Volume 265, Issue 1-3, Pages 199-205Publisher
ELSEVIER
DOI: 10.1016/j.desal.2010.07.052
Keywords
Mill paper wastewater; Electrocoagulation; Color; COD; Phenol
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The effective performance of electrocoagulation (EC) technique in the treatment of paper mill wastewater has been investigated using different combination of aluminum (Al) and iron (Fe) electrodes. The influence of pH, temperature and current density on removal performance was explored. The optimum working pH was found to be in the range 5-7, allowing paper mill wastewater to be treated directly without pH adjustment. In addition, it is found that an increase in the current enhanced the speed of the treatment significantly. However, simultaneous increase of electrode and energy consumption was observed. The optimum current density allowing the quickest treatment with a low cost was found to be 70 mA cm-(2.) Therefore, a current density of 70 mA cm(-2) was selected as an optimum that allows fast and low cost treatment. Also temperature has negative effect on the removal efficiency. (C) 2010 Elsevier B.V. All rights reserved.
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