Recycling WEEE: Polymer characterization and pyrolysis study for waste of crystalline silicon photovoltaic modules

Dias, Pablo; Javimczik, Selene; Benevit, Mariana Gonçalves; Veit, Hugo Marcelo

doi:10.1016/j.wasman.2016.08.036

Cited by 106 publications

(68 citation statements)

References 26 publications

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“…The thermal treatment has been reported in several studies as the pretreatment method to remove the EVA binder from waste PV modules 8,9,[26][27][28] and it has been proven to be a better method compared to articial disassembly and organic solvent washing. 29 However, the pyrolysis process is oen overlooked during the recovery of whole PV modules; moreover, the pyrolysis products, reaction mechanisms and pyrolysis characteristics have not been studied in researches.…”

Section: Pyrolysis Product Analysis By Py-gc-msmentioning

confidence: 99%

“…8,9 In Pablo Dias's study, the polymer of PV modules was characterized by Fourier transform infrared spectroscopy (FTIR), and the removal of the EVA resin by pyrolysis was studied. 26 The results showed that >99% of the polymers from PV modules could be removed by pyrolysis. Nonetheless, the pyrolysis products and kinetic analysis were not studied in their research.…”

Section: Introductionmentioning

confidence: 99%

“…Apart from physical separation and organic solvent etching, thermal treatment is mostly used to separate the sandwich structure of crystalline silicon panels and serves as the pretreatment method for recycling silicon wafers. 8,9,[25][26][27][28] Nochang Park et al…”

Section: Introductionmentioning

confidence: 99%

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Pyrolysis-based separation mechanism for waste crystalline silicon photovoltaic modules by a two-stage heating treatment

et al. 2019

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Section: Pyrolysis Product Analysis By Py-gc-msmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pyrolysis-based separation mechanism for waste crystalline silicon photovoltaic modules by a two-stage heating treatment

et al. 2019

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“…Silicon wafer production is also reported to account for 50% or more of the environmental footprint of a crystalline-silicon PV module (10). Previous experimental work has shown that glass, aluminum, silicon, copper and silver can be recovered from the recycling of end-of-life PV modules (11) (12). Several processes have been suggested in which the initial step is the mechanical removal of the aluminum frame, junction box and wiring (7) (13) (14).…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Recovery of Silicon Photovoltaic Cells by Application of an Organic Solvent Method

Heninger¹,

Subramanian²

2020

Preprint

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The treatment of photovoltaic (PV) waste is gaining traction the world over, with the recovery of valuable materials from end-of-life, or damaged and out-of-spec polycrystalline silicon PV modules. These materials are a focus of recycling. However, the current recycling practices usually involve excessive damage to PV cells that could otherwise be reused if extracted undamaged. The ability to extract undamaged PV cells, capable of reuse, would serve to further reduce the carbon footprint and cost associated with PV module manufacturing. This study focuses on the recovery of silicon PV cells from end-of-life PV modules by application of an organic solvent method. Herein, recovery tests were carried out in which silicon PV cells were recovered relatively undamaged with the application of hexane as solvent. XRD measurements showed that the recovered PV cells could be used in the fabrication of new PV modules.

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“…Losses of precious and scarce metals (e.g., silver, gallium, indium, and germanium), conventional materials (e.g., aluminum and glass), and the leaching of hazardous substances (e.g., lead and cadmium) are defined as the most important environmental issues linked to the incorrect disposal of waste PV panels [6,7]. An adequate EoL management can assure the availability of secondary materials, proposing a cost efficient recovery of available resources [8].…”

Section: Introductionmentioning

confidence: 99%

Economic Feasibility for Recycling of Waste Crystalline Silicon Photovoltaic Modules

D’Adamo

Miliacca

Rosa

2017

International Journal of Photoenergy

102

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Cumulative photovoltaic (PV) power installed in 2016 was equal to 305 GW. Five countries (China, Japan, Germany, the USA, and Italy) shared about 70% of the global power. End-of-life (EoL) management of waste PV modules requires alternative strategies than landfill, and recycling is a valid option. Technological solutions are already available in the market and environmental benefits are highlighted by the literature, while economic advantages are not well defined. The aim of this paper is investigating the financial feasibility of crystalline silicon (Si) PV module-recycling processes. Two well-known indicators are proposed for a reference 2000 tons plant: net present value (NPV) and discounted payback period (DPBT). NPV/size is equal to −0.84 €/kg in a baseline scenario. Furthermore, a sensitivity analysis is conducted, in order to improve the solidity of the obtained results. NPV/size varies from −1.19 €/kg to −0.50 €/kg. The absence of valuable materials plays a key role, and process costs are the main critical variables.

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Recycling WEEE: Polymer characterization and pyrolysis study for waste of crystalline silicon photovoltaic modules

Cited by 106 publications

References 26 publications

Pyrolysis-based separation mechanism for waste crystalline silicon photovoltaic modules by a two-stage heating treatment

Pyrolysis-based separation mechanism for waste crystalline silicon photovoltaic modules by a two-stage heating treatment

An Investigation of the Recovery of Silicon Photovoltaic Cells by Application of an Organic Solvent Method

Economic Feasibility for Recycling of Waste Crystalline Silicon Photovoltaic Modules

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