Technology of Recycling Silicon from Solar Panel
Against the backdrop of increasing global demand for renewable energy, solar panels are rapidly gaining popularity and adoption as an important energy source. However, with solar panel lifetimes typically ranging from 25-30 years, the next few decades will be challenged by many discarded solar panels. Disposal of these wastes will not only pollute the environment but may also waste valuable materials contained in them, such as silicon. Therefore, it is particularly important to develop efficient solar panel recycling technologies.
Automatic Solar PV Panels Recycling Line
Currently, solar panel recycling methods mainly include physical, chemical, and thermal treatment technologies. Physical methods involve disassembling and separating components such as aluminum frames, glass, and silicon wafers; chemical methods use chemical solvents to separate silicon and other materials; and thermal treatment methods separate silicon and other materials by heating them at high temperatures.
Among these methods, SUNY GROUP developed the physical-mechanical sorting technology to become one of the mainstream methods of silicon recycling. The technology includes the following key steps: firstly, dismantling the aluminum frame and junction box of solar panels; then crushing the solar panels into small pieces and grinding them into powder; and finally using equipment such as electrostatic sorting machines and airflow sorting sieves to realize the effective separation and purification of silicon and other materials.
Solar panel silicon recycling technology not only helps to reduce environmental pollution but also maximizes the recovery of valuable materials in the waste solar panels, reducing the need for new materials. With the continuous innovation and development of recycling technology, recycling efficiency and economic benefits will also continue to improve, contributing to sustainable development. These efforts will help drive the solar industry in a more environmentally friendly and sustainable direction, injecting new vitality into the future energy landscape.
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