LIBS as a Tool for Transforming E-Waste into Valuable Resources

Laser-Induced Breakdown Spectroscopy (LIBS) is becoming a powerful tool in the recycling industry, proving its efficacy in various applications. Our previous article highlighted how LIBS can significantly aid in battery recycling, thereby contributing to sustainable resource management and promoting environmental sustainability. In that study, we delved into the specifics of black mass and battery recycling, illustrating the remarkable potential of LIBS in this domain.

Building on this foundation, our latest study extends the application of LIBS to the recycling of electronic waste. This is particularly crucial given the increasing amount of e-waste generated globally and the environmental challenges it poses. By leveraging LIBS, we can identify and recover valuable metals from e-waste, which not only mitigates environmental harm but also supports the circular economy.

In our recent analysis for a customer, we examined various metal samples using our Sci-Trace and detected Copper (Cu) and Nickel (Ni) in almost all samples. Additionally, we discovered substantial amounts of Tin (Sn) and  Silver (Ag) in many samples, alongside smaller quantities of Gold (Au). Our analysis also extended to electrolytes, where we primarily identified Ni, Cu, Ag and Magnesium (Mg). The presence of  many of these identified metals is significant as they are commonly used in electronic components and have high recycling value.

                                                Composition of a metal sample

Quantifying metal concentrations in e-waste using LIBS will be the next step towards enabling efficient metal recovery processes. This will not only help to conserve natural resources but also significantly reduce the environmental footprint associated with traditional mining and processing of raw materials. By recovering metals from e-waste, we can decrease the demand for virgin materials, thereby lessening the ecological impact and fostering a more sustainable approach to resource management.

With its ability to detect a wide range of elements, Sci-trace and M-trace prove to be the right tool to help alleviate environmental sustainability challenges. As we continue to refine and expand the use of this technology, its role in supporting efficient and eco-friendly recycling processes will undoubtedly become even more critical. LIBS addresses the pressing need for sustainable resource management and paves the way for a greener future.

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