An Electrochemical Approach to Recycle and Extraction of Metals from Electronic Waste

Abstract

Scraped e-waste is a result of increased production and demand for Electrical and Electronic Appliances (EEA). Because the discarded EEA contains heavy metals, it must be carefully disposed of in order to prevent any environmental harm. Researchers and pollution control boards in the relevant nations are taking notice of this rapid increase in e-waste in order to properly dispose of and recycle the garbage. A variety of materials, including gold, silver, copper, iron, etc., are included in e-waste. For research, it is crucial to safely and sustainably remove all of those metals from old electrical and electronic products. Electrochemical, pyrometallurgical, hydrometallurgical, and bioleaching methods for extracting metals from waste scrap have all evolved in the development of environmentally friendly and sustainable technologies. Among all the methods for extracting metals that are accessible, electrochemical extraction is one of the most admired. One of the reported most effective techniques among all of these is electrochemical. (80-95%) of the metal is reported to have been extracted using the previously stated procedure and various electrolytes. Additionally, after processing and chemical leaching of the Waste, various combinations of electrodes are employed to independently recover the metals from E-Waste is presented in the paper.  The study presents an electrolysis method for copper extraction. In order to achieve the highest Cu extraction efficiency, a variety of electrode and electrolyte combinations are used in this study work, along with an energy model for the process. adjusting the electrolyte content to examine the Cu extraction rate for improved extraction efficiency. It is possible to extract copper with 99% efficiency using this electrolysis method.