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In line with the trend of energy transformation, the development of photovoltaics is of great significance for achieving the goal of carbon peak and the vision of carbon neutrality. In the production of photovoltaic cells, a large amount of hydrofluoric acid, hydrochloric acid, potassium hydroxide/sodium, velvet additives, ammonia, etc. are used in processes such as alkaline polishing, plasma etching, and dephosphorization silicon glass. The corresponding wastewater mainly includes high fluoride wastewater, high nitrogen wastewater, etc. The compliance of high pollution wastewater treatment is a prerequisite for the smooth development of the industry.

For fluorine-containing wastewater, a new coagulation sedimentation enhanced fluoride removal process is adopted, which can reduce the cost of water treatment by 15% per ton. For high nitrogen wastewater, ISNA is adopted ®/ DGSB ® Upgrading the denitrification process can achieve complete removal of nitrogen pollutants and minimize treatment costs. By achieving stable compliance and optimal economic benefits, our company is committed to supporting the vigorous development of China's carbon neutrality industry.