CAJ | 학술논문

在开展4A 沸石吸附—解吸模拟锰渣渗滤液中 Mn2＋实验的基础上，通过 X 射线衍射分析（XRD）和红外光谱分析（FTIR）研究了4A 沸石吸附 Mn2＋的机制及其解吸行为。结果表明：4A 沸石对模拟锰渣渗滤液中 Mn2＋的去除效率高达99．34％，吸附量最高可达92．84 mg／g，但化学解吸和化学—物理联合解吸对于沸石型离子交换吸附的解吸效果不佳，Mn2＋解吸率均未超过1．6％。XRD 和 FTIR 显示4A 沸石对 Mn2＋的吸附机制主要为离子交换。
재개전4A 비석흡부—해흡모의맹사삼려액중 Mn2＋실험적기출상，통과 X 사선연사분석（XRD）화홍외광보분석（FTIR）연구료4A 비석흡부 Mn2＋적궤제급기해흡행위。결과표명：4A 비석대모의맹사삼려액중 Mn2＋적거제효솔고체99．34％，흡부량최고가체92．84 mg／g，단화학해흡화화학—물리연합해흡대우비석형리자교환흡부적해흡효과불가，Mn2＋해흡솔균미초과1．6％。XRD 화 FTIR 현시4A 비석대 Mn2＋적흡부궤제주요위리자교환。
This paper discussed about the adsorption of Mn2 + from the simulated Mn residues leaching by using zeolite 4A.The adsorption mechanism and desorption activity were analyzed by XRD and FTIR.The results show that the removal rate of zeolite 4A was 99.34% and the highest adsorbance was 92.84 mg/g.However,the chemical solution desorption method and chemical solution assisted by ultrasonic wave desorption method had little impact on the desorption of zeolite 4A.The average desorption rate never reached 1.6%.The results of XRD and FTIR show that the adsorption mechanism of Mn2 + on zeolite 4A mainly depends on ion exchange.