Photovoltaic industry and semiconductor industry. Do you want to talk about the wastewater of the entire industrial chain? All semiconductor industries use pure water, i.e. deionized water, which is electronic grade. The wastewater is mainly acidic and alkaline, and there is no heavy metal pollution. But there will be solid waste. The national environmental protection department has established emission standards for sewage and waste gas.
You mean, let me ask you, the solar power failed and a lot of the copper pipes were bent from the inside. How much do these copper pipes cost per pound? the price of red copper could reach thirty yuan per pound. In recent years, the price of copper has fallen by more than ten yuan, and now the price of red copper is less than twenty yuan.