Removal of CuEDTA compounds via electrochemical process with coagulation

Effluent containing CuEDTA compounds has been effectively treated via electrochemical process with coagulation. Active Fe(OH) 2 was generated at the anode and worked as coagulant with the assistance of electrolysis to remove cupric ions chelating with EDTA. In contrast, pure chemical coagulant fail...

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Bibliographic Details
Published in:Water research (Oxford) 1995-01, Vol.29 (2), p.597-599
Main Authors: Yeh, R.S., Wang, Y.Y., Wan, C.C.
Format: Article
Language:English
Subjects:
Applied sciences
CuEDTA
electrochemical decomposition
Exact sciences and technology
Freshwater
Industrial wastewaters
Pollution
Wastewaters
Water treatment and pollution
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Summary:Effluent containing CuEDTA compounds has been effectively treated via electrochemical process with coagulation. Active Fe(OH) 2 was generated at the anode and worked as coagulant with the assistance of electrolysis to remove cupric ions chelating with EDTA. In contrast, pure chemical coagulant failed to remove the cupric ions. The anodic reactions which occur on the electrode consist of Cu Fe replacement, dissolution of iron and EDTA decomposition. The importance of each reaction with respect to operation variables has also been analyzed.
ISSN:0043-1354
1879-2448
DOI:10.1016/0043-1354(94)00169-8