Innovative Approaches to Recycling Methods for Photovoltaic (PV) Modules and Photovoltaic-Thermal (PV/T) Systems
Project no. 29603 · Status: Kapanmış (Yayın bekleniyor) · 2024
Summary
<p>The increasing use of photovoltaic (PV) panels in line with the global transition toward green energy has led to a growing need for effective solutions to manage photovoltaic waste. Various innovative approaches have been investigated to recover valuable materials from end-of-life photovoltaic panels. In this study, three different delamination processes, namely cavitation, ultrasonic cavitation, and subcritical fluid treatment, were applied for the recycling of PV module systems. The recovery efficiencies of glass, silicon, and valuable metals obtained by these methods were evaluated using gravimetric measurements together with spectroscopic characterization techniques. As a result, the hydrothermal subcritical delamination method was identified as the most effective process, achieving a 98.4% delamination efficiency within 30 min with an energy consumption of only 0.132 kWh. The ultrasonic cavitation method, performed using only deionized water without any chemical solvent, achieved a 82.2% delamination efficiency, demonstrating its potential as an environmentally sustainable alternative. Characterization analyses confirmed that the recovered silicon possessed a purity of 87.5 wt. % while maintaining its crystalline structure. Overall, the proposed delamination methods provide an effective, low-energy, and environmentally friendly approach for recovering high-purity silicon and valuable metals from end-of-life photovoltaic panels, thereby contributing to sustainable photovoltaic waste management and the circular economy.</p>