FERROUS OXALATE FROM METAL WASTE FOR ADVANCED MATERIALS: A REVIEW

Abstract

The rapid development of the manufacturing industry, particularly in the machining sector, generates a significant volume of metal waste. Most of this waste ends up as scrap without undergoing any valuable recycling process, which poses environmental challenges and potential contamination risks. However, the large amount of waste produced contains potentially high material value, presenting opportunities to develop new approaches to waste management based on sustainability principles, thereby creating new economic opportunities. Previous research has demonstrated that metal waste can be converted into ferrous oxalate using various methods and tests, making it a valuable material. Therefore, further scientific studies are needed in the form of journal reviews of previous research to identify, analyze, and evaluate the potential of ferrous oxalate from metal waste materials to become advanced sustainable materials. The method used is a scoping review of the literature. Findings indicate that a variety of iron-rich wastes can be effectively converted into high-purity ferrous oxalate through environmentally friendly processes. Ferrous oxalate exhibits remarkable potential in energy storage, heavy metal removal from wastewater, pigment, sustainable cement, electrorheological fluids, and gas sensors. This review is expected to open new perspectives on utilizing iron waste as value-added materials with high economic value.