Removal of Cr(VI) from wastewater by FeOOH supported on Amberlite IR120 resin

被引：7
|
作者：
Wu, Shijiao [1 ]
Fu, Fenglian [1 ]
Cheng, Zihang [1 ]
Tang, Bing [1 ]
机构：
[1] Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 38期
基金：
中国国家自然科学基金;
关键词：
Cr(VI) wastewater; Resin; FeOOH; Supported; R-FeOOH; Removal efficiency; HEXAVALENT CHROMIUM; ADSORPTION; PERFORMANCE; OXIDATION; REDUCTION; MECHANISM; CHROMATE;
D O I：
10.1080/19443994.2015.1087340
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Resin-supported FeOOH (R-FeOOH) was synthesized by the chemical reaction of Fe3+-exchange resin with H2O2. R-FeOOH was characterized with scanning electron microscopy and X-ray powder diffraction. The optimum R-FeOOH was synthesized in the presence of 0.5 mol/L Fe3+ and 0.09 mol/L H2O2. Then, R-FeOOH was employed to remove Cr(VI) from aqueous solutions under different conditions. The results indicated that the removal efficiencies of Cr(VI) were all over 98% for initial Cr(VI) concentration of 20.0 mg/L at initial pH of 2.0, 3.0, 5.0, and 7.0, with R-FeOOH dose of 15.0 g/L after reaction for 120 min. The Cr(VI) removal efficiency can attain 100% at pH 3.0 after reaction for 90 min. Besides, a test on the reuse of the R-FeOOH was conducted. The removal of Cr(VI) by R-FeOOH was through adsorption, ion exchange, and reduction. R-FeOOH can be an effective agent for Cr(VI) removal from wastewater.
引用
收藏
页码：17767 / 17773
页数：7
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