About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction & Processing
|
| Presentation Title |
Efficient recovery of elemental selenium from seleni-um-containing wastewater via electrolysis |
| Author(s) |
Xueshuang Gong, Guozheng Zha, Wenlong Jiang |
| On-Site Speaker (Planned) |
Xueshuang Gong |
| Abstract Scope |
Selenium is widely used in optoelectronics, electronics, etc. The problem of re-source waste and environmental pollution caused by the discharge of seleni-um-containing wastewater is becoming increasingly serious. Traditional methods for recovering selenium-containing wastewater include wet metallurgy, chemical precipita-tion, adsorption, or biological methods. The emissions of carbon dioxide and sulfur ox-ides continue to increase, adding to the environmental burden. The recovery rate of low-concentration selenium is less than 70%, leading to the loss of rare metal resources. Additionally, there are issues of excessive energy consumption and high chemical rea-gent usage. Based on theoretical calculations, this work designs a green process based on an electrolytic circulation system: through electrochemical reduction, the elemental selenium in the wastewater is efficiently recovered. A closed electrolyte circulation sys-tem is constructed, and electrolysis conditions are optimized, resulting in metal selenium with a purity of over 99% and an electric current efficiency of 89.06%. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electrometallurgy, Extraction and Processing, Recycling and Secondary Recovery |