Selective Reductant Electrowinning for Metal Recovery and Waste Reduction [ID 13001]



A selective reductant electrowinning process developed by Ohio University researcher, Dr. Gerrardine Botte, shows great promise in capturing metals in industrial processes and waste streams. This new process is highly efficient in comparison to existing approaches, and shows potential for both lowering costs and generating new revenue streams for companies in multiple industries.

Metals are often used as base catalysts (Ni, Co, Cr, Ag, Au, Fe, Cu, and Zn) in industrial processes. These metals  eventually lose their catalytic functions and become waste. In other situations, metals leach into water and waste streams during manufacturing processes. This new electrowinning process offers an economical and efficient means for capturing these metals, either for reuse or to be sold.

Various metals are also found in municipal wastewater streams. The use of this technology in water remediation allows for not just the removal of metals, but also inorganics and other organic compounds.


Energy efficient process, offering substantial savings over traditional electrowinning

Process is selective, allowing for specific metals to be targeted for recovery

Allows metal recovery from waste streams, allowing metals to be reused or sold

Commercial Applications

Manufacturing—especially electronics and batteries

Oil production and refining

Water treatment/remediation

Chemical plants

Issued Patents

2879727 France, Germany, United Kingdom

Published Patent Application

CA 2,879727

Printable Overview



Patent Information:
For Information, Contact:
Mark Foley
Technology and Commercialization Manager
Ohio University
Gerardine Botte