Recovery of Copper Ions from Industrial Wastewater by Electrodeposition

Abstract

Electrodeposition is an attractive method used for the recovery and removal of metal ions from metal coatings, metal processing and electronic industry wastes. In this study, copper was both removed and recovered from industrial wastewater containing copper by using the electrodeposition method. Two series of experiments were conducted by using copper and stainless steel as cathodes. In both experiments, the effects of current, pH, conductivity and initial copper concentration on the electrodeposition efficiency were investigated, and optimum values were obtained. With this method, the amount of copper removed from industrial wastewater under optimum conditions was 66% in the experiments conducted with the copper cathode and 80% in the experiments conducted with the stainless steel cathode. It was also observed as a result of the experiments that the copper removed from the wastewater was deposited on the cathode. In addition, reaction kinetics suitable for the experimental conditions were investigated and generally found to be compatible with a second-order kinetic model.

Adsorption of Copper (II) from Aqueous Solutions with Alginate/Clay Hybrid Materials

“…This highlights the need for novel materials for the removal of low levels of Cu. Precipitation [ 39 , 40 ], chelation [ 41 ], and electrodeposition methods [ 42 ] are successful for Cu removal from wastewater.…”

One-step recovery of REE oxalates in electro-leaching of spent NdFeB magnets

“…11). Solution conductivity decreased during electro-leaching as the hydrogen ions were replaced by less conductive components released from the magnet [33].…”

Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent

“…Lead, arsenic, mercury, copper, nickel, chromium, and cadmium are the most common heavy metals in the environment, they can cause many diseases, including: cancers, kidney disease, disease of the cardiovascular system, as well as gastrointestinal disturbances, and neurological disorders [8]. Removal of the metals from industrial wastewater including precipitation [9], electrodepositing [10], ion exchange, membrane separation technologies [11], etc., is economically unpro table due to the high cost of these processes. Hence, the main advantages of the adsorption processes are the possibility to remove metals from the aqueous solution, reusing the adsorbent materials, as well as, low cost, and little use of the expensive chemicals [12].…”