上海市桃浦地区的玻搪化工厂是我国最大的搪瓷原料生产企业。每年的产品数量基本上满足了国内需要,节省了大量外汇并为国家创造了巨额利润。因此,从发展国民经济、实现“四化”的目标看,还需大量增加产量。但另一方面玻搪化工厂生产过程中又排放出巨量的“三废”,其中含镉污染物占整个上海市含镉污染物的60～70 ％ ,是全 The glassy chemical plant in Taopu, Shanghai is the largest enamel raw material manufacturer in China. The number of products each year basically meets domestic needs, saving a lot of foreign exchange and creating huge profits for the country. Therefore, from the perspective of developing the national economy and realizing the goal of “four modernizations,” we must also increase production in a large amount. However, on the other hand, a huge amount of “three wastes” was emitted during the production process of Krypton Chemical Plant, among which cadmium-containing pollutants accounted for 60 to 70% of the cadmium-containing pollutants in Shanghai.