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随着工业的发展,镉的应用越来越广泛。在天然化合物中镉常与锌同时存在,如锌矿和锌铅矿中都含有镉。由于这些矿石的开采、提炼及镉在工业中的应用,废金属的回收,工业污水、污泥和废塑料的处理,往往造成对环境的污染,从
With the development of industry, the application of cadmium is more and more widely. In natural compounds, cadmium often co-exists with zinc, such as zinc and zinc-lead ore contains cadmium. Due to the exploitation of these ores, their extraction and the application of cadmium in industry, the recovery of scrap metal, the treatment of industrial effluents, sludge and waste plastics often result in environmental pollution