CAJ | 학술논문

对阜新天然丝光沸石进行NaOH-Al2(SO4)3改性，改性沸石用于高氟废水的除氟实验，并采用扫描电镜（SEM）、能谱（EDS）和X射线衍射（XRD）对样品的形貌进行了表征。分别用动力学和热力学模型对吸附过程进行了模拟，结果表明：改性沸石的除氟效果达到94.78%，吸附过程接近准二级动力学速率方程，且Freundlich等温线吸附模型能较好地模拟吸附热力学过程；由吸附过程的热力学函数吉布斯自由能ΔG 0＜0，焓变ΔH 0＜0，熵变ΔS 0＜0，表明吸附过程属于自发的和放热的。
대부신천연사광비석진행NaOH-Al2(SO4)3개성，개성비석용우고불폐수적제불실험，병채용소묘전경（SEM）、능보（EDS）화X사선연사（XRD）대양품적형모진행료표정。분별용동역학화열역학모형대흡부과정진행료모의，결과표명：개성비석적제불효과체도94.78%，흡부과정접근준이급동역학속솔방정，차Freundlich등온선흡부모형능교호지모의흡부열역학과정；유흡부과정적열역학함수길포사자유능ΔG 0＜0，함변ΔH 0＜0，적변ΔS 0＜0，표명흡부과정속우자발적화방열적。
The Fuxin natural mordenites were modiifed by NaOH-Al2(SO4)3 then were used to remove lfuoride in the wastewater , the results were characterized by SEM, EDS and XRD. The adsorption process was dealed with the model of kinetics and thermodynamics, the results showed that: the effect of removing lfuoride has reached 94.7%, the adsorption process could be well described by the accurate secondary kinetic rate equation and the Freundlich isotherm adsorption model; some important thermodynamics functions such asΔG0<0,ΔH0<0 andΔH0<0 were calculated and all the negative value showed that adsorption process is spontaneous and exothermic.