With the transition of the global energy structure, solar power generation is gradually becoming a core force in clean energy. Many customers are concerned about one question: Is the solar panel recycling process safe for the environment? Although solar panels generate clean electricity, their manufacturing and recycling processes involve complex materials. This article will explore the greening process of photovoltaic recycling by drawing on the practical experience of YUSHUNXIN’s PV recylying technology.
What are the potential environmental risks of solar panels?
Solar panels feature a complex structure, which consists of multiple layers of materials including glass, silikon wafers, metal conductors, encapsulation film, and backsheets. Glass and aluminum are easily recyclable, but the internal solder, conductive paste, and encapsulation layers may contain elements such as lead, silver, cadmium, and selenium. If improperly handled during recycling, these substances can contaminate soil and water bodies.
How Does YUSHUNXIN Recycling Technology Ensure Environmental Safety?
Our solar panel recycling methods primarily encompass three approaches: mechanical dismantling, thermal separation, and chemical extraction. Each method possesses distinct characteristics in terms of energy efficiency and environmental safety.
This method physically dismantles aluminum frames, glas, and wires, which is the most widely applied process currently. Our vibrating screen separator, air classifier, en electrostatic separator can separate glass from silicon layers without chemical solvents, with a recovery rate exceeding 90%.
Traditional high-temperature degassing methods can recover high-purity silicon materials, but they have the risk of flue gas emissions. Our pyrolysis tunnel kiln incorporates controlled oxygen environment pyrolysis technology. Hierdie PV pirolise tegnologie precisely controls temperature and atmosphere. Verder, it works with a multi-stage flue gas purification system to reduce carbon emissions by approximately 30%.
As gevolg hiervan, the efficient recovery of elements such as gallium and indium not only reduces dependence on mineral resources but also ensures the environmental sustainability of the entire process.
What are the differences in recycling challenges among various battery technologies?
Crystalline silicon panels are the most common type of solar cell. Their structure is relatively simple, so the main challenge lies in separating intact silicon wafers from the EVA adhesive layer. YUSHUNXIN has developed a low-temperature de-bonding and vibration delamination system for such components, enabling direct reuse of silicon wafers in solar panel production line.
Thin-film solar panel contains more rare metal elements, such as CdTe and CIGS, which require chemical dissolution or evaporation separation for extraction. YUSHUNXIN uses its unique closed-loop wet recycling process to repeatedly utilize all chemical solvents within the system. It can both enhance metal recovery rates and ensure zero liquid discharge.
