|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Deriving Value from Challenging Waste Materials: Recycling and Sustainability Joint Session
||D-11: Alternative Method for Materials Separation from Crystalline Silicon Photovoltaic Modules
||Pedro Forastieri de Almeida Prado, Jorge Alberto Soares Tenório, Denise Crocce Romano Espinosa
|On-Site Speaker (Planned)
||Jorge Alberto Soares Tenório
There has been an increasing push to develop environmentally sound recycling processes of electronic waste (WEEE), including end-of-life photovoltaic modules, to reclaim materials such as silver which is both valuable and pollutant to human health and wildlife. However, process sustainability and economic feasibility of PV panels recycling is strongly tied to the materials separation step, which currently presents challenges due to use of high temperature treatments and strongly acidic solutions. A method using an easily accessible solvent - isopropanol - dissolved the silicone-based encapsulant of crystalline silicon PV modules in 2 days at room temperature, separating the module into semiconductor wafer, glass, ribbon and backsheet.