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

页码：17767 / 17773

页数：7

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