The disposal and treatment of wasted computers become a hot-topic in solid waste research field increasingly, and the wasted computer circuit boards is one of the most primary study objects.
废旧电脑的无害化处理与处置日益成为固废研究的热点问题，其中废旧电脑线路板是主要研究对象之一。
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Waste water of metallurgy, pulp and paper, tanneries, food and chemicals industries, in primary or secondary treatment plants.