Record Display for the EPA National Library CatalogRECORD NUMBER: 18 OF 28
|Main Title||Recovery Process for Complexed Copper-Bearing Rinse Waters: A State-of-the-Art Review of the Advantages and Disadvantages of Currently Available Technologies.|
|Author||Spearot, R. M. ; Peck, J. V. ;|
|CORP Author||OMI International Corp., Warren, MI.;Environmental Protection Agency, Washington, DC.|
|Additional Subjects||Materials recovery ; Copper ; Water pollution control ; Reprints ; Metal finishing ; Electroplating ; Water treatment ; Chelating agents ; Industrial wastes ; Chemical reactions ; Electrochemistry ; Pollution control equipment ; Evaporators ; Technology transfer ; Electroless copper ; Rinse waters ; Reverse osmosis|
The presence of complexing agents in waste solutions increases the difficulty of removing heavy metals, such as copper. Treatment methods for electroless copper rinse waters depend greatly on the particular copper complexing agent used in the electroless copper process. Treatment methods to be discussed are grouped into three categories, chemical, physical, and electrochemical. The chemical methods include substitution, reduction of the metal ion, oxidation of the complexor, and ion exchange. The physical methods are evaporators and reverse osmosis. The electrochemical methods are electrolytic plate out, electrowinning and electrochemical displacement.