How to recycle solar photovoltaic panels?
Solar panels can convert light energy into electrical energy, which brings great convenience to outdoor lighting. As a new energy source, solar energy reduces environmental pollution to a large extent, but at the same time it may involve another problem. That is the equipment that utilizes these new energy sources. For example, if the solar panels are damaged and scrapped, will they cause new pollution? This involves the recycling of the panels. How to recycle the discarded solar photovoltaic panels? Use it?
From a circular economy perspective, discarded photovoltaic panels are a huge resource. These alternative e-wastes contain a lot of valuable raw materials, which can be effectively recycled and reused as long as they are properly disposed of. Like other electronic waste, photovoltaic panels are treated by separating and recycling heavy metals (cadmium telluride, germanium, gallium, etc.), and then dismantling and recycling materials such as glass, plastic and aluminum.
Because many materials of solar panels can still be recycled, for example, the core material crystalline silicon can be reused in the heavy metal industry, glass panels can be sent to glass manufacturing, aluminum frames can be sent to aluminum refineries, cables, After the joints are crushed, they can be reused in the form of copper beads, and waste plastics and the like can be used as fuel... So as long as they are handled properly, you don't have to worry too much about the solar panels that will bring new life to the environment after they are scrapped. The current developed photovoltaic panel recycling equipment can recycle photovoltaic panels well without causing pollution.
The specific process of photovoltaic panel recycling and processing equipment: first, disassemble the glass on the photovoltaic panel; second step, disassemble, remove the back plate and wires; third step, break the components and remove the outer tempered glass; fourth step Pyrolysis, the main purpose of this step is to dissolve the EVA; the latter step is to extract the valuable metals and silicon materials in the components. It has been officially put into operation, and can disassemble, sort, process and recycle 95% of the materials in the crystalline silicon photovoltaic panels: 2/3 of the glass is recycled into broken glass and sent to the glass factory; the aluminum frame is sent to aluminum refineries; waste plastics can be used as fuel in cement plants; recycled silicon can be reused in the precious metals industry; remaining cables and connectors are crushed and sold as copper beads.
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