Electrolytic Removal of Cadmium, Lead and Copper from Wastewater

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 Cd 2+ , Pb 2+ and Cu 2+. 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.

Remediation of Lead Ions from Wastewater Using Magnetic Iron Oxide Nanoadsorbents – A Review

“…This corrosion is critical for high acidic or low mineral content water.Many conventional methods are applicable for the disinfection of waste water like reverse osmosis, ion exchange, chemical precipitation, membrane filtration, electrolytic methods, solvent extraction. etc [8][9][10][11][12][13]. But most of these methods have drawbacks like high cost, difficulty of operation, significant energy consumption and toxic waste generation [14,15].…”

Reusable cysteine-ferrite-based magnetic nanopowders for removal of lead ions from water

“…Currently, the search for methods to remove Pb from water has been increasing. Some usual technologies are based on chemical precipitation 10 , ionic exchange 11,12 , membrane filtration 13 , electrolytic methods 14 , reverse osmosis 15 , and solvent extraction 16 . However, most of these methods have disadvantages due to limitations in the pH range since they use the reduction of metal ions as the main mechanism of action 17 , as well as the high cost, difficulty of operation and significant energy consumption 18 .…”