|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advances in Environmental Technologies: Recycling and Sustainability Joint Session
||D-6: Evaluation of the Silver Recovery from Solid Industrial Wastes in an Electrochemical Reactor
||Pedro Alberto Ramirez Ortega, Victor Esteban Reyes Cruz, Maria Aurora Veloz Rodriguez, Laura Garcia Hernandez
|On-Site Speaker (Planned)
||Pedro Alberto Ramirez Ortega
In this work the evaluation of an electrochemical reactor with stainless steel (A304) and titanium (Ti) electrodes was realized, applied in the silver recovery. The studies were performed at different flow velocities with empirical and dimensionless correlations, and parameters such as: current efficiency φe, energy consumption Es and space-time yield ρST. The results of the variation of the concentration of Ag at different flow linear velocities allowed the determination of the mass transfer coefficients of silver (order of 10-5) for A304 SS and Ti electrodes, which are consistent with the literature. The empirical and dimensionless correlations obtained pointed towards a fully developed turbulent flow. The current efficiency values above 100% indicated that the electrochemical process is coupled to an electroless process. The results showed low energy consumption Es and high φe and ρST values indicating that the reactor presents an excellent performance in the recovery of silver.