![]() In the first method, the modules were milled, sieved and leached in 64% nitric acid solution with 99% sodium chloride the silver concentration yield was 94%. ![]() Moreover, two methods to concentrate silver from waste modules were studied, and the use of pyrolysis was evaluated. It is shown that the silver content in crystalline silicon photovoltaic modules reaches 600 g/t. ![]() In this study, the extraction of silver from waste modules is justified and evaluated. ![]() To date, there have been few published studies on recycling silver from silicon photovoltaic panels, even though silicon technology represents the majority of the photovoltaic market. Thus, recycling such waste is of great importance. The modules contain known pollutants and valuable materials such as silicon, silver, copper, aluminum and glass. Photovoltaic modules (or panels) are important power generators with limited lifespans.
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