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中文摘要：
以煤矸石为原料,利用ZnCl2对其进行改性处理,以甲基橙溶液模拟染料废水,在恒温振荡条件下进行吸附实验。研究了ZnCl2和煤矸石的质量比、煅烧温度、煅烧时间对改性煤矸石吸附甲基橙效果的影响。结果表明：最佳的改性条件为ZnCl2和煤矸石的质量比为0.7∶1,煅烧温度为550℃,煅烧时间为3 h。利用X射线衍射和扫描电子显微镜对改性煤矸石进行了表征,并研究了改性煤矸石对甲基橙的吸附性能。吸附热力学研究表明,去除甲基橙的过程符合Langmuir吸附等温式;吸附动力学研究表明,改性煤矸石对甲基橙的吸附过程符合拟二级动力学模型。
英文摘要：
The coal gangue is modified by zinc chloride（ZnCl2）. The effects of mass ratio of ZnCl2 and coal gangue,calcination temperature and calcination time are studied. The ZnCl2 modified coal gangue is characterized by Xray diffraction and scanning electron microscopy（ SEM）. The adsorption performance of ZnCl2 modified coal gangue is evaluated by using methyl orange as simulated dye wastewater. The results show that the optimal modification conditions are 0. 7 mass ratio of ZnCl2 and coal gangue,550℃ of calcination temperature and 3 hours of calcination time. The adsorption thermodynamics shows that the removal process of methyl orange is in accord with the Langmuir isotherm equation. In addition,the adsorption kinetics shows that the adsorption process is well fitted with the pesudo-second-order kinetic model.
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