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首页> 外文期刊>Environmental engineering and management journal >LEACHABILITY OF HEAVY METALS FROM SLAG RESIDUES UNDER INTENSE TEMPERATURE AND STIRRING CONDITIONS
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LEACHABILITY OF HEAVY METALS FROM SLAG RESIDUES UNDER INTENSE TEMPERATURE AND STIRRING CONDITIONS

机译：高温和搅拌条件下渣渣中重金属的浸出能力

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摘要

Air cooled and water cooled slag samples were obtained from a demonstration plasma gasification / vitrification unit. The leachability of the major heavy metals present (Cr, Cu, Mn, Fe, Pb and Zn) in both the air cooled and water cooled slag when in contact with acidic solutions was investigated under different temperature, stirring and contact time conditions. Water cooled slag showed better resistance to heavy metals leaching. The vitrification process immobilised Cr and Pb. The leachability of Cu, Fe and Zn increased by heating and stirring, whereas the leachability of Mn was not affected by temperature and it was found to decrease with combined heating and stirring.
机译：从示范的等离子气化/玻璃化装置获得风冷和水冷炉渣样品。在不同温度，搅拌和接触时间条件下，研究了与酸性溶液接触时，风冷和水冷炉渣中存在的主要重金属（Cr，Cu，Mn，Fe，Pb和Zn）的浸出能力。水冷炉渣显示出更好的抗重金属浸出性。玻璃化过程固定了Cr和Pb。 Cu，Fe和Zn的浸出率通过加热和搅拌而增加，而Mn的浸出率不受温度的影响，并且发现随着加热和搅拌的组合而降低。

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    Konstantinos Moustakas; Alexandras Mavropoulos; Katherine-Joanne Haralambous; Maria Loizidou;

  • 作者单位

    National Technical University of Athens, School of Chemical Engineering, Unit of Environmental Science & Technology, 9, Heroon Polytechniou Street, Zographou Campus, P.C. 15773, Athens, Greece;

    National Technical University of Athens, School of Chemical Engineering, Unit of Environmental Science & Technology, 9, Heroon Polytechniou Street, Zographou Campus, P.C. 15773, Athens, Greece,D-Waste, 141 B, Acharnon Street, PC 104 46, Athens, Greece;

    National Technical University of Athens, School of Chemical Engineering, Unit of Environmental Science & Technology, 9, Heroon Polytechniou Street, Zographou Campus, P.C. 15773, Athens, Greece;

    National Technical University of Athens, School of Chemical Engineering, Unit of Environmental Science & Technology, 9, Heroon Polytechniou Street, Zographou Campus, P.C. 15773, Athens, Greece;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    gasification - vitrification unit; metal leachability; slag; stirring; temperature;

    机译：气化-玻璃化单元;金属浸出性矿渣;搅拌温度;

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