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砷大多赋存在有色金属矿床中,随着有色金属矿山开采和有色金属冶炼,不可避免地要产生含砷废水。含砷量波动很大,从每升几毫克到数千毫克。这些含砷废液,不仅对环境的生态产生危害,有时还会对某些冶炼过程产生恶劣的影响。因此,无论从环境保护,还是从冶炼过程的要求出发,都需要考虑含砷废液的处理。
Arsenic is mostly present in non-ferrous metal deposits. With the development of non-ferrous metal mines and the smelting of non-ferrous metals, it is inevitable to produce arsenic-containing wastewater. The amount of arsenic varies widely from a few milligrams per liter to thousands of milligrams. These arsenic-containing wastewaters not only endanger the ecology of the environment, but sometimes also have adverse effects on some smelting processes. Therefore, no matter from the environmental protection, or from the smelting process requirements, all need to consider the treatment of arsenic-containing waste.