TY - JOUR
T1 - Organic matter and heavy metal removals from complexed metal plating effluent by the combined electrocoagulation/Fenton process
AU - Kabdaşli, I.
AU - Arslan, T.
AU - Arslan-Alaton, I.
AU - Ölmez-Hanci, T.
AU - Tünay, O.
PY - 2010
Y1 - 2010
N2 - In the present study, the treatment of metal plating wastewater containing complexed metals originating from the nickel and zinc plating process by electrocoagulation (EC) using stainless steel electrodes was explored. In order to improve the organic matter removal efficiency, the effect of H 2O2 addition to the electrocoagulation (the combined EC/Fenton process) application was investigated. For this purpose, a wide range of H2O2 concentrations varying between 15 and 230 mM was tested. All EC and EC/Fenton processes were performed at an initial pH of 2.6 and at an optimized current density of 22 mA/cm2. Although up to 30 mM H2O2 addition improved the EC process performance in terms of organic matter abatement, the highest COD and TOC removal efficiencies were obtained for the combined EC/Fenton process in the presence of 20 mM H 2O2. Nickel and zinc were completely removed for all runs tested in the present study after pH adjustments. At the optimized operation conditions, the combined EC/Fenton process proved to be an alternative treatment method for the improvement of organic matter reduction as well as complexed metal removal from metal plating industry wastewater.
AB - In the present study, the treatment of metal plating wastewater containing complexed metals originating from the nickel and zinc plating process by electrocoagulation (EC) using stainless steel electrodes was explored. In order to improve the organic matter removal efficiency, the effect of H 2O2 addition to the electrocoagulation (the combined EC/Fenton process) application was investigated. For this purpose, a wide range of H2O2 concentrations varying between 15 and 230 mM was tested. All EC and EC/Fenton processes were performed at an initial pH of 2.6 and at an optimized current density of 22 mA/cm2. Although up to 30 mM H2O2 addition improved the EC process performance in terms of organic matter abatement, the highest COD and TOC removal efficiencies were obtained for the combined EC/Fenton process in the presence of 20 mM H 2O2. Nickel and zinc were completely removed for all runs tested in the present study after pH adjustments. At the optimized operation conditions, the combined EC/Fenton process proved to be an alternative treatment method for the improvement of organic matter reduction as well as complexed metal removal from metal plating industry wastewater.
KW - Complexed metal removal
KW - Complexing agent removal
KW - Electrocoagulation/Fenton
KW - Metal plating effluent
KW - Organic matter removal
KW - Stainless steel electrodes
UR - http://www.scopus.com/inward/record.url?scp=77954515667&partnerID=8YFLogxK
U2 - 10.2166/wst.2010.202
DO - 10.2166/wst.2010.202
M3 - Article
C2 - 20453336
AN - SCOPUS:77954515667
SN - 0273-1223
VL - 61
SP - 2617
EP - 2624
JO - Water Science and Technology
JF - Water Science and Technology
IS - 10
ER -
