Abstract Fly ash and slag were examined for the removal processes of Pb(II) ions from water in batch experiments under different conditions of adsorbent dosage, initial concentration, pH and contact time. The materials are industrial waste generated from the high temperature treatment of sewage sludge by the circulating fluidized bed combustion (CFBC) technology. Physical and chemical properties, as well as adsorption efficiency and calculated maximum adsorption capacity of Pb(II) ions were determined using a variety of methods. The kinetic analysis revealed that the adsorption process is better described by the pseudo-second order equation and it is well fitted to the Freundlich model.

中文翻译：

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CFBC技术获得的粉煤灰和矿渣吸附Pb(II)离子的对比研究

摘要 在不同的吸附剂用量、初始浓度、pH 值和接触时间条件下，通过批量实验，研究了粉煤灰和炉渣对水中 Pb(II) 离子的去除过程。原料是利用循环流化床燃烧（CFBC）技术对污水污泥进行高温处理后产生的工业废弃物。物理和化学性质，以及吸附效率和计算的 Pb(II) 离子的最大吸附容量是使用多种方法确定的。动力学分析表明吸附过程可以用伪二阶方程更好地描述，并且很好地拟合了 Freundlich 模型。