Fluoride removal of a novel ultrasonic-assisted supported Fe/y-Al2O3 adsorbent

摘要：

　　γ-Al2O3 adsorbent modified with iron (Fe/γ-Al2O3) was prepared by impregnation and ultrasonic wave-assisted oxidation.The optimum pH range for fluoride adsorption was 3.0-9.0,which is preferable for actual application.The maximum adsorption capacity of the Fe/γ-Al2O3 adsorbent was 2.5 l mg g-1 and about 2 times of the plain γ-Al2O3 (γ-Al2O3).A column experiment was performed at an initial fluoride concentration of 30 mg l-l, space velocity of 1.7 h-1 and pH of 5.9,and the breakthrough time of the Fe/γ-Al2O3 was more than 210 min with the effluent fluoride under 10 mg l-1 and was about 5 times of the plain one.The samples were measured by X-ray diffraction (XRD) patterns and scanning electron microscope (SEM) images.

关键词： Ultrasonic-assisted supported Fe/y-Al2O3, fluoride y-Al2O3 adsorption

作者: Wenhui ZOU Yong LIU Li HONG Zhongyu LUO

作者单位: College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610066, P.R.China

会议类型: 国际会议

会议名称: 2013International Conference on Energy Engineering and Environmental Engineering(2013年能源工程与环境工程国际会议)(ICEEEE2013)

会议地点: 杭州

会议语种:英文

页码: 387-390

在线出版日期: 2013-01-18（万方平台首次上网日期，不代表论文的发表时间）