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对资源、能源的开发利用以及某些大型工程的兴建必然排出大量废水,如果对废水不加处理随意排放,必然带来对环境的污染问题。关于重金属离子对水体的污染,在国外很早就引起重视,而且有过深刻的教训。因此,处理含重金属离子废水非常必要。在废水重金属离子的除去方法中,离子浮选法的沉淀浮选等各种浮选法被广泛开发
The development of resources and energy sources as well as the construction of certain large-scale projects inevitably discharge a large amount of waste water. If the waste water is discharged without any treatment, it will inevitably cause environmental pollution problems. On the pollution of heavy metal ions on water bodies, has long attracted attention abroad, but also had a profound lesson. Therefore, the treatment of wastewater containing heavy metal ions is very necessary. Among the methods for removing heavy metal ions in wastewater, various flotation methods such as precipitation flotation by the ionic flotation method have been widely developed