The Role of Electrochemistry and Electrochemical Technology in Environmental Protection, a review | ||
| International Journal of Materials Technology and Innovation | ||
| Article 6, Volume 3, Issue 2, June 2023, Pages 37-63 PDF (1.45 M) | ||
| Document Type: Review Article | ||
| DOI: 10.21608/ijmti.2023.168368.1062 | ||
| Author | ||
| E Elsayed* | ||
| Central metallurgical research and development institute | ||
| Abstract | ||
| Electrochemical technology has a very broad range of environmental protection applications and generally aims to improve the environment in a number of ways. Environmental electrochemistry is a novel field of study which has appeared recently. Environmental electrochemistry is the use of electrochemical methods to remove poisons from industrial wastewater before its discharged into the environment. The main goal of this article is to provide a full review of the choices of electrochemistry and electrochemical technology to clean the environment. We cover industrial applications for the electrochemical removal of heavy metals from diluted solutions. A careful survey of the various electrode types and cell designs like rotating cylinder electrode cells, Swiss-roll cells, fixed packed bed cells, fluidized bed cells, and spiral wounded steel electrodes is presented. All of these cells are used to extract toxic heavy metals from industrial solutions and waste liquids. These cells' activity is governed by a number of operating factors. These operational parameters that control reactor performance and efficiency are reviewed. We cover the advantages and disadvantages of various techniques for electrochemical recovering metals and cleaning up pollution is reviewed. The use of bench scale cells from Central Metallurgical R & D institute (CMRDI) researchers in this research proves the following: Copper refiners’ solutions were reduced using packed column electrode cell, and Swiss-roll cells. Toxic chromium was electrochemically removed from electroplating and tanning solutions using rotating cylinder electrode cells. In a three-dimensional cell, the electro removal of cadmium employing a spiral wound steel electrode from solution was evaluated. | ||
| Keywords | ||
| CMRDI; Environmental Protection; Electrowinning; current efficiency; reactor design | ||
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