TITLE:
Electrolytic Removal of Cadmium, Lead and Copper from Wastewater
AUTHORS:
Isaque C. A. Santos, Isabela O. Santos, Leandro V. Pontual, Luciane P. C. Monteiro, Fernando B. Mainier
KEYWORDS:
Copper, Lead, Cadmium, Electrolytic Removal, Effluents, Contaminations
JOURNAL NAME:
Journal of Environmental Protection,
Vol.7 No.5,
April
18,
2016
ABSTRACT: The respective compounds of copper, cadmium and lead, owing to their
strong toxic potential, as a result of industrial effluent, have left a trail
of contamination in humans and the environment. This paper aimed to study the
electrode position on the removal of aqueous solutions of cadmium, lead and
copper, using an electrolytic cell with a metallic screen cathode of carbon
steel and platinum anode. Removal efficiencies were obtained by analysis of the
solutions before and after treatment, using the methodology of cathodic-stripping
voltammetry with a mercury drop electrode to quantify the concentrations of Cd2+,
Pb22+ and Cu2+. Removal
efficiencies were obtained of 94.07% for cadmium, 94.71% for lead and 96.19%
for copper, demonstrating that electrolytic removal is an effective technique
for the removal of these metals from simulated industrial wastewater.