[This article belongs to Volume - 57, Issue - 11]
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-04-12-2025-890

Title : Comparative Study of Synthetic and Natural Goethite From The Bauxite Extractive Industry as A Low-Cost Hexavalent Chromium Adsorbent
Della Kharisma, Adji Kawigraha, Nur Vita Permatasari,

Abstract : Contamination of water by hexavalent chromium [Cr(VI)] has garnered considerable attention because this ion is highly toxic and carcinogenic, posing serious threats to human health. In this work, we present an easy and effective method to eliminate Cr(VI) pollutants by reusing red mud. The prepared adsorbents were examined using XRD, FT-IR, FE-SEM, and XRF techniques. Red mud exhibited greater adsorption performance than synthetic goethite. Both materials are simple to operate and have the potential to be regenerated for repeated Cr(VI) removal. The key benefit of red mud lies in its wide availability and functional properties, making it a readily obtainable and efficient material for sorption studies. Therefore, this mining residue offers a practical option for treating wastewater containing hexavalent chromium.