Innovative Recycling of End of Life Silicon PV Panels: Materials Recovering and Glass Re-Use

Rakotoniaina, J.P.; Suitner, Harald; Sessa, Teresa; Nisi, Alessio; Attanasio, Agnese; Sabia, Gianpaolo; Tammaro, Marco; Dabalà, Manuele; Pezzato, Luca; Brunelli, Katya; Cerchier, Pietrogiovanni; Audoin, C.

doi:10.4229/eupvsec20192019-4av.2.55

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“…Dias (2015) concluded that the glass used in the modules had a composition similar to common glass, indicating that, after its segregation, it is possible to send it to already-known glass recycling processes. Audoin et al (2019) indicates a promising application of PV glass as a partial replacement for fine aggregate fractions commonly used in the construction industry, such as mortars, concrete and precast concrete.…”

Section: Mass Distribution Of the Different Materials Obtained Analys...mentioning

confidence: 99%

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

et al. 2023

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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°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°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.

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Section: Mass Distribution Of the Different Materials Obtained Analys...mentioning

confidence: 99%

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

et al. 2023

View full text Add to dashboard Cite

show abstract

Innovative Recycling of End of Life Silicon PV Panels: Materials Recovering and Glass Re-Use

Cited by 1 publication

References 0 publications

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

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

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