TY - JOUR
T1 - The behavior of organic components in copper recovery from electroless plating bath effluents using 3D electrode systems
AU - Orhan, Gökhan
AU - Gürmen, Sebahattin
AU - Timur, Servet
PY - 2004/8/30
Y1 - 2004/8/30
N2 - An electrochemical method was applied for the recovery of copper both from the spent solutions and from the rinse waters of electroless copper plating baths, containing copper sulfate, formaldehyde, quadrol, and NaOH. Experiments were conducted in a rotating packed cell (Rollschichtzelle®) to investigate the effects of current density, electrolyte composition, temperature, and pH on the copper recovery. All the copper (final CCu = 0.1 ppm) was recovered from the waste and rinse waters of chemical copper plating plants with 70% current efficiency by the electrochemical treatment in a rotating packed cell at 130 A/m2 current density, room temperature, with 5 mm diameter cathode granules, with the presence of formaldehyde, and with a specific energy consumption of 3.2-3.5 kW h/kg Cu. On the other hand, final copper concentrations of 5 ppm were reached with 62% current efficiency and 5.5-5.8 kW h/kg Cu specific energy consumption, with electrolytes containing no formaldehyde.
AB - An electrochemical method was applied for the recovery of copper both from the spent solutions and from the rinse waters of electroless copper plating baths, containing copper sulfate, formaldehyde, quadrol, and NaOH. Experiments were conducted in a rotating packed cell (Rollschichtzelle®) to investigate the effects of current density, electrolyte composition, temperature, and pH on the copper recovery. All the copper (final CCu = 0.1 ppm) was recovered from the waste and rinse waters of chemical copper plating plants with 70% current efficiency by the electrochemical treatment in a rotating packed cell at 130 A/m2 current density, room temperature, with 5 mm diameter cathode granules, with the presence of formaldehyde, and with a specific energy consumption of 3.2-3.5 kW h/kg Cu. On the other hand, final copper concentrations of 5 ppm were reached with 62% current efficiency and 5.5-5.8 kW h/kg Cu specific energy consumption, with electrolytes containing no formaldehyde.
KW - Copper recovery
KW - Copper reduction electrolysis
KW - Electroless copper plating
KW - Formaldehyde
KW - Quadrol
UR - http://www.scopus.com/inward/record.url?scp=4043173396&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2004.05.012
DO - 10.1016/j.jhazmat.2004.05.012
M3 - Article
C2 - 15302447
AN - SCOPUS:4043173396
SN - 0304-3894
VL - 112
SP - 261
EP - 267
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 3
ER -