| Remediation of Cr（Ⅵ） in solution using vitamin C |
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| 作者姓名： | Liu Y Xu XH He P |
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| 作者单位： | DepartmentofEnvironmentalEngineering,ZhejiangUniversity,Hangzhou310027,China |
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| 摘 要： | The effectiveness of vitamin C in treating Cr(Ⅵ)-contaminated water is being evaluated. Cr(Ⅵ) is an identified pollutant of some soils and groundwater. Vitamin C, an important biological reductant in humans and animals, can be used to transform Cr(Ⅵ) to essentially nontoxic Cr(Ⅲ). The removal efficiency was 89% when the mass concentration of vitamin C was 80 mg/L in 60 min, and nearly 100% Cr(Ⅵ) was removed when the mass concentration was 100 mg/L. Our data demonstrated that the removal efficiency was affected by vitamin C concentration, the reaction temperature and the dissolved oxygen concentration.The reaction mechanism of Cr(Ⅵ) by vitamin C was presented. Our study opens the way to use vitamin C to remediate Cr(Ⅵ)-contaminated soils and groundwater.
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| 关 键 词： | 铬化物 维生素C 水污染 污染物质 地下水 |
Remediation of Cr(VI) in solution using vitamin C |
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| Liu Y,Xu XH,He P.Remediation of Cr(VI) in solution using vitamin C[J].Journal of Zhejiang University Science,2005,6(6):540-542. |
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| Authors: | Liu Yong Xu Xin-hua He Ping |
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| Institution: | Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China. |
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| Abstract: | The effectiveness of vitamin C in treating Cr(VI)-contaminated water is being evaluated. Cr(VI) is an identified pollutant of some soils and groundwater. Vitamin C, an important biological reductant in humans and animals, can be used to transform Cr(VI) to essentially nontoxic Cr(III). The removal efficiency was 89% when the mass concentration of vitamin C was 80 mg/L in 60 min, and nearly 100% Cr(VI) was removed when the mass concentration was 100 mg/L. Our data demonstrated that the removal efficiency was affected by vitamin C concentration, the reaction temperature and the dissolved oxygen concentration. The reaction mechanism of Cr(VI) by vitamin C was presented. Our study opens the way to use vitamin C to remediate Cr(VI)-contaminated soils and groundwater. |
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