Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 163, Issue 2-3, Pages 995-1000Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2008.07.115
Keywords
Black liquor; Electrocoagulation; Electrode of aluminum; Water treatment
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The procedure of electrocoagulation is an effective, fast and economic technique for treatment of black liquor resulting from paper industry. The effect of electrolysis time, current density, type of electrode material and initial pH were Studied in an attempt to achieve a higher removal capacity. Under the optimal experimental conditions (initial pH 7, t=50 min and J=14 mA cm(2)), the treatment of black liquor by electrocoagulation has led to a removal capacity of 98% of COD, 92% of polyphenols and 99% of color intensity with a good repeatability (R.S.D. <3%) making it possible to highlight the industrial interest of this electrochemical process. (C) 2008 Published by Elsevier B.V.
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