China State Grid Qinghai Electric Power Company disclosed on the 10th that China has made a major breakthrough in the recycling of solar panels in China. It has developed a recycling device for resources and has proposed a new environmentally friendly recycling process for solar panels. It has completely independent property rights.
In recent years, China ’s new and cumulative installed photovoltaic capacity is the first in the world. Although it has the production process of the entire photovoltaic industry chain, the solar panel resource recycling industry lags behind in terms of industrial layout, recycling technology research and standard construction. European and American countries.
Data Figure: Distributed photovoltaic power station in the eastern region of Qinghai. Photo by Luo Yunpeng
According to Kang Jun, deputy dean of the Electric Power Research Institute of China State Grid Qinghai Electric Power Company, the previous investigation found that the decommissioning process of decommissioned solar panels is relatively primitive, which easily generates waste liquid and waste gas, and cannot effectively separate valuable components, which consumes energy. At the same time, there are higher environmental risks.
It is understood that most of the retired solar panel photovoltaic modules can be recycled and have considerable recycling value.
"Development of a solar panel resource recycling device based on the hydroelectric effect to form a new environmentally friendly panel resource recycling process." Song Baipeng, an assistant researcher in the high-voltage teaching and research department of the School of Electrical Engineering, Xi'an Jiaotong University, said, "After nearly two years of technical research and systems Research, tens of thousands of pulse discharge experiments, we finally obtained optimized power parameters. "
According to reports, through the application of new technology, neither chemical reagents nor waste water or waste liquid will be generated in the recycling process, while dust pollution is avoided, the recycling process is harmless, and the effective separation and separation of different components are achieved. Enrichment can achieve selective dissociation and recovery of different components such as glass, metal, silicon powder and so on.
Kang Jun said that in the future, he will further optimize and upgrade the recycling process, and build an exemplary industrial production line with a certain scale, formulate a standardized process of solar panel recycling based on the hydroelectric effect, improve the recycling efficiency and yield of high-value materials, and solve the actual industry. The technical and management problems that may arise in production lay the foundation for large-scale market promotion and application. (Luo Yunpeng He Bingxun Jiang Ling)
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