Abstract:Guixi Smelter, as the world's largest modern copper smelter, has been committed to building a safe and efficient,environmental friendly, clean, energy-saving and low-carbon green system, and creating a "green factory" model. Wastewater neutralization treatment is an important part of building a green system. Therefore, Guixi Smelter continuously optimizes PH control system to achieve further improvement and breakthrough of wastewater neutralization treatment process efficiency