石英砂负载氧化铁吸附去除溶液中亚甲蓝的研究  

Removal of methylene blue in solution by iron-oxide coated quartz sand

作　　者：宣寒[1] 谢发之[1] 王颖[1] 曹田[1] 陈艳[1] 陈方平[1] 

机构地区：[1]安徽建筑工业学院材料与化学工程学院,安徽合肥230022

出　　处：《工业水处理》2013年第6期32-35,共4页Industrial Water Treatment

基　　金：国家自然科学基金项目(21107001)

摘　　要：以石英砂为原料制得石英砂负载氧化铁(IOCS),考察了IOCS的性能、吸附条件对IOCS吸附亚甲蓝效果的影响及吸附柱的再生,并对吸附过程进行了动力学研究。结果表明,采用高温烧结法制备的IOCS吸附亚甲蓝效果较好;IOCS对溶液中亚甲蓝吸附的适宜条件:pH为13.5,亚甲蓝质量浓度约为6 mg/L,温度为293 K,上样液吸附流速为4 BV/h;IOCS对溶液中亚甲蓝的吸附动力学曲线可以用Weber-Morris曲线来拟合;Langmuir吸附等温方程和Freundlich方程都能较好地描述IOCS对溶液中亚甲蓝的吸附过程;0.01 mol/L的HCl对IOCS吸附柱的再生效果较好。Using quartz sand as raw material, iron oxide coated quartz sand （IOCS） has been prepared. IOCS perfor- mance and the effect of adsorption conditions on the adsorption capacity for methylene blue and the regeneration of adsorptive column are investigated. The adsorption course has been studied kinetically. The results show that the IOCS prepared by high temperature sintering method has better adsorption capacity for methylene blue. The optimal conditions for IOCS to adsorb the methylene blue in solution are as follows ：pH is 13.5 ,mass concentration of methy- lene blue about 6 mg/L, temperature 293 K, and adsorptive sample flow velocity 4 BV/h. The curve of adsorptive ki- netics of methylene blue in solution can be fitted with Weber-Morris curve. isotherm equations can well describe the adsorption course of methylene blue efficacy of IOCS adsorptive column by using 0.01 mol/L of HC1 is pretty good.

关 键 词：石英砂负载氧化铁 亚甲蓝 吸附 

分 类 号：X703[环境科学与工程—环境工程]