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首页> 外文会议>Global Symposium on Recycling, Waste Treatment and Clean Technology; 20040926-29; Madrid(ES) >STUDY OF DIVALENT HEAVY METAL IONS ADSORPTION BY USING RADIATA BARK PINE
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STUDY OF DIVALENT HEAVY METAL IONS ADSORPTION BY USING RADIATA BARK PINE

机译：辐射松皮吸附不同重金属离子的研究

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Radiata bark pine has arisen as one of the possible heavy metals extracting agent from aqueous solutions. This innocuous treatment pathway, example of the so-called clean technology, has been studied for numerous authors nevertheless some issues, like global mechanism, are still not well described. This work is devoted to determine the effect of initial-normal heavy metal content present in radiata bark pine over its own ion extraction capability. Separate batch experiences at different conditions of both Cu(Ⅱ) and Pb(Ⅱ) adsorption were performed. Many authors have demonstrated that pulp density affect largely the bark pine extraction capability. In equilibrium conditions, the solid/liquid ratio itself defines the adsorption capacity independently of both heavy metal concentration and bark surface state. FTIR, PIXE and SEM analysis corroborated these facts and also proved the existence of different adsorption energy sites. Further kinetic analysis was performed to understand the different adsorption behavior of Cu(Ⅱ) and Pb(Ⅱ).
机译：放射状的树皮松已经作为水溶液中可能的重金属提取剂之一出现。这种无害的治疗途径，即所谓的清洁技术的例子，已经为许多作者研究过，但是，诸如全局机制之类的一些问题仍然没有得到很好的描述。这项工作致力于确定辐射树皮中存在的初始正常重金属含量对其自身离子提取能力的影响。在不同条件下分别进行了Cu（Ⅱ）和Pb（Ⅱ）的吸附过程。许多作者已经证明，纸浆密度在很大程度上影响树皮松的提取能力。在平衡条件下，固/液比本身决定了吸附能力，而与重金属浓度和树皮表面状态无关。 FTIR，PIXE和SEM分析证实了这些事实，并证明了存在不同的吸附能位。进行了进一步的动力学分析，以了解Cu（Ⅱ）和Pb（Ⅱ）的不同吸附行为。

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