中文摘要：

为研究分子筛对水体中重金属的吸附效果,选取了13X分子筛作为实验材料,研究其对钒离子的吸附效果。分别研究了在不同温度、时间、溶液pH值和初始钒浓度的条件下,13X分子筛对钒离子的吸附量,结果表明：酸性条件更利于13X分子筛对钒的吸附,溶液pH≥5时吸附量趋于0;随着反应温度的升高,13X分子筛对钒离子的吸附量逐渐增加;13X分子筛对钒离子的吸附符合Langmuir模型和拟二级动力学模型。13X分子筛对钒离子具有一定的吸附效果,在一定的处理工艺条件下,可作为水体钒污染的修复材料。但针对不同来源废水的特点,需对分子筛进行改性并进一步优化修复工艺条件以实际应用。

英文摘要：

To study the potential of using zeolite molecular sieve to remove heavy metals from aqueous environment,the adsorption of vanadium（ V） on 13 X molecular sieve were studied under different temperatures,solution pH values,and initial V（ V） concentrations. The results shows that 1） the adsorption amount of V on 13 X molecular sieve was much higher in acidic solution than in alkaline solution; 13 X molecular sieve had no adsorption ability towards V（ V） at pH ≥ 5; 2） the amount of V adsorbed on 13 X molecular sieve increased gradually with increasing temperature; 3） the adsorption of V（ V） on 13 X molecular sieve fitted the Langmuir model and the pseudo-second-order kinetic model well. These results indicate that 13 X molecular sieve is a potential absorbent that can be used to remediate V-contaminated water. However,before this technology is used widely in water treatment,more detailed studies are required on V absorbed on 13 X molecular sieve under different environmental conditions and on the modification of 13 X molecular sieve to improve the removal rate.