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苏鸿英 《有色金属再生与利用》2007,(8):42-45
过去十年人们日益重视材料的可持续应用,因此在选择材料和接受产品时,材料能否回收和再利用起到了重要作用。如果管理得当,回收再利用具有延长资源使用的潜力,使能源消耗、污染物排放、废物处理数量最大程度减少,所以回收利用日益被认为是金属 相似文献
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<正>"金属破烂"是对废弃资源再生利用规模化发展的形象比喻,是指工业化和城镇化过程中产生和蕴藏于废旧机电设备、电线电缆、通讯工具、汽车、家电、电子产品、金属和塑料包装物以及废料中,可循环利用的钢铁、有色金属、贵金属等资源。经过工业革命300年的掠夺式开采,全球80%以上可工业化利用 相似文献
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"十五"期间,国家把实施可持续发展战略放在更加突出的位置.实施可持续发展战略要求节约资源,保护环境,正确处理好经济发展与资源,环境的关系问题. 相似文献
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电子垃圾的快速增长给我们带来困扰的同时也给我们提供一座资源丰富、价值极高的“城市矿山”;通过环保的科学手段获取其中的可用资源是处理电子垃圾的最终目的。文章介绍了目前从废旧印刷电路板中回收贵金属的4种主要技术,分析了各类技术的优缺点,展望了未来回收技术的发展趋势。 相似文献
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镁合金铸造及镁合金产品的广泛应用产生了大量的镁合金废料,本文讨论了镁合金废料的来源、分类、回收和再生技术,并分析了回收镁合金的质量及应用. 相似文献
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This article reviews the principal factors affecting the feasibility of recovering nonferrous metals from industrial wastes. Major emphasis is on available separation process technologies with potential for metal recovery and the economics of recycling. Consideration is also given to government regulations and the strategic character of certain metals that provide important incentives for recycling. 相似文献
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The hydrolysis and equilibrium of an iminodiacetic ion exchange resin has been successfully applied to an industrial-waste water with significant quantities of iron and base metals, including copper and cobalt.1,2 Equations based on the mass action law can be used to adequately meet global and individual retentions. When compared with batch tests, the results in fixed-bed load experiments show that kinetic and flow controls must be studied and considered in practice. Experiments of elution in column have also been performed with homogeneous or stratified distribution of the loaded resin as well as with constant and increasing concentrations of eluants. Elution results are highly dependent on the load method, and the results could be improved by employing a fluidized bed or mixing tank contactor during the load step. 相似文献
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