| Title | c-Si PV module recycling: Analysis of the use of a mechanical pre-treatment to reduce the environmental impact of thermal treatment and enhance materials recovery |
|---|---|
| ID_Doc | 6904 |
| Authors | Camargo, PSS; Domingues, AD; Palomero, JPG; Cenci, MP; Kasper, AC; Dias, PR; Veit, HM |
| Title | c-Si PV module recycling: Analysis of the use of a mechanical pre-treatment to reduce the environmental impact of thermal treatment and enhance materials recovery |
| Year | 2023 |
| Published | Waste Management & Research, 41, 11 |
| Abstract | The current increase in the use of photovoltaic (PV) energy demands the search for solutions to recycle end-of-life modules. This study evaluated the use of a mechanical pre-treatment in the thermal recycling of c-Si crystalline PV modules, which were submitted to recycling routes to separate and concentrate the materials of interest. The first route was constituted by only thermal treatment, and the second route was constituted by a mechanical pre-treatment to remove the polymers from the backsheet, and subsequent thermal treatment. The exclusively thermal route was performed at 500 degrees C, varying dwell times between 30 and 120 minutes in the furnace. In this route, the best results were obtained in 90 minutes, with a maximum degradation of 68% of the polymeric mass. In route 2, a micro-grinder rotary tool was used to remove the polymers from the backsheet and, subsequently, thermal treatment performed at 500 degrees C, with dwell times in the furnace ranging between 5 and 30 minutes. The mechanical pre-treatment removed about 10.32 +/- 0.92% of the mass of the laminate PV module. By this route, only 20 minutes of thermal treatment were needed for the total decomposition of the polymers, that is, a reduction of 78% in the oven time. With route 2, it was possible to obtain a concentrate with 30 times more silver than the PV laminate and 40 times more than a high-concentration ore. Furthermore, with route 2 it was possible to reduce the environmental impact of heat treatment and energy consumption. [GRAPHICS] . |
Similar Articles
| ID | Score | Article |
|---|---|---|
9677
|
Farrell, C; Osman, AI; Zhang, XL; Murphy, A; Doherty, R; Morgan, K; Rooney, DW; Harrison, J; Coulter, R; Shen, D Assessment of the energy recovery potential of waste Photovoltaic (PV) modules(2019) | |
| 16521
|
Bogacka, M; Potempa, M; Milewicz, B; Lewandowski, D; Pikon, K; Klejnowska, K; Sobik, P; Misztal, E PV Waste Thermal Treatment According to the Circular Economy Concept(2020)Sustainability, 12, 24 | |
| 10250
|
Tembo, PM; Subramanian, V Current trends in silicon-based photovoltaic recycling: A technology, assessment, and policy review(2023) | |
| 5199
|
Thomassen, G; Dewulf, J; Van Passel, S Prospective material and substance flow analysis of the end-of-life phase of crystalline silicon-based PV modules(2022) | |
| 13184
|
Ansanelli, G; Fiorentino, G; Tammaro, M; Zucaro, A A Life Cycle Assessment of a recovery process from End-of-Life Photovoltaic Panels(2021) | |
| 13881
|
Gahlot, R; Mir, S; Dhawan, N Recycling of Discarded Photovoltaic Solar Modules for Metal Recovery: A Review and Outlook for the Future(2022)Energy & Fuels, 36, 24 | |
| 5208
|
Heath, GA; Silverman, TJ; Kempe, M; Deceglie, M; Ravikumar, D; Remo, T; Cui, H; Sinha, P; Libby, C; Shaw, S; Komoto, K; Wambach, K; Butler, E; Barnes, T; Wade, A Research and development priorities for silicon photovoltaic module recycling to support a circular economy(2020)Nature Energy, 5, 7 | |
| 25863
|
Isherwood, PJM Reshaping the Module: The Path to Comprehensive Photovoltaic Panel Recycling(2022)Sustainability, 14, 3 | |
| 23321
|
Crespo, B; Cavanaugh, C; Potter, A; Yaniger, S; Gaustad, G; Wilkinson, C Technoeconomic feasibility of photovoltaic recycling(2024)International Journal Of Applied Glass Science, 15, 4 | |
| 9909
|
Ko, JW; Kim, K; Sohn, JW; Jang, H; Lee, HS; Kim, D; Kang, YM Review on Separation Processes of End-of-Life Silicon Photovoltaic Modules(2023)Energies, 16.0, 11 |