Publication Type
Journal Article
Publication Date (Issue Year)
6-1-2023
Journal Name
Water Reuse
Abstract
The loss of highly sought-after metals such as gold, silver, and platinum during extraction processes not only constitutes a significant waste of valuable resources but also contributes to alarming environmental pollution. The ever-growing adverse impacts of these highly valued metals significantly increase the contamination of water bodies on discharge, while reducing the reusability potential of their corresponding processed wastewater. It is, therefore, of great interest to identify pragmatic solutions for the recovery of precious materials from processed water. In this review, pollution from targeted precious metals such as gold, silver, platinum, palladium, iridium, ruthenium, and rhodium was reviewed and analyzed. Also, the hazardous effects are elicited, and detection techniques are enumerated. An insightful approach to more recent treatment techniques was also discussed. The study reveals nano-and bio-sorption techniques as adoptable pragmatic alternatives, among other techniques, especially for industrial applications with merits of cost, time, waste management, and eco-friendliness. The results indicate that gold (46.2%), palladium (23.1%), platinum (19.2%), and silver (11.5%) are of utmost interest when considering recent recovery techniques. High yield and cost analysis reduction are reasons for the observed preference of this recovery process when considering groups of precious metals. The challenges and prospects of nanomaterials are highlighted.
Keywords
biosorption, metal recovery, nanomaterials, precious metals, sequestration
Rsif Scholar Name
Joshua Oyetade
Thematic Area
Minerals, Mining and Materials Engineering
Africa Host University (AHU)
Nelson Mandela African Institution of Science and Technology (NM-AIST), Tanzania
Recommended Citation
Adeeyo, A., Bello, O., Agboola, O., Adeeyo, R., Oyetade, J., Alabi, M., Edokpayi, J., & Makungo, R. (2023). Recovery of precious metals from processed wastewater: conventional techniques nexus advanced and pragmatic alternatives. Water Reuse, 13 (2), 134-161. https://doi.org/10.2166/wrd.2023.068