Researchers from the University of New South Wales have reported details about a new technology for making Sieving AIDS that improves the separation of metal fragments of other components in recycling PV panels at the end of life. The patented process reportedly improves the recovery of silver.
Researchers from the University of New South Wales (UNSW) in Australia reported research details of their improved sieve method to improve the recovery of silver and other metals from solar panels at the end of life. The technology is patented.
“The method is based on a simple mechanical seven-process and is improved with seven aids (stainless steel balls), which are cheap, durable and widely available,” said the corresponding author, Yansong Shen, said PV -MagazineAdding that the efficient separation of PV cells from other components facilitates a high-quality recovery of silicon and other valuable metals, making it ‘economically attractive’.
The seven process arrives after the pyrolysis delamination Stream -up step and before the chemical leaching electricity step for silver recovery.
In the experimental work, the team used monocrystalline silicon PV panels, standard ethylene vinylacetate (EVA) encapsulants, protective cover glass and a foil back plate in an anodized aluminum alloy frame.
These were processed via thermal delamination for polymer removal, mechanical separation and chemical length. Samples were then extracted. Measurements of the samples include particle weight and size, as well as scanning electron microscopy (SEM).
“The results indicate that more than 96.3 wage.
“The losing result shows that more than 98.9% of the silver in the PV modules can be recovered with this integrated method,” the team reported.
The research appears in “Improvement of particle separation and recovery of valuable materials from solar panels to the end of life‘Published by Sources, preservation and recycling.
With regard to commercialization potential, Shen said that although the current results were obtained on laboratory scale, the method could be developed into a practical product and integrated into industrial PV recycling lines through further optimization and upscaling.
The researchers are planning to continue to develop and improve the proposed separation method, with a focus on industrialization, and to investigate the thermal delamination process to develop a more “sustainable and effective approach to the removal of polymer”.
There is continuous activities at the National Research shub for recycling and sustainability of the solar panel Where the researchers work with industrial partners to commercialize recycling technology and to find new PV recycling technologies.
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