| 还原法修复六价铬污染土壤的研究 |
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| 引用本文： | 梁金利,蔡焕兴,段雪梅,戴玄吏,余益军.还原法修复六价铬污染土壤的研究[J].环境科学与管理,2013(3):80-83. |
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| 作者姓名： | 梁金利 蔡焕兴 段雪梅 戴玄吏 余益军 |
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| 作者单位： | [1]常州大学环境与安全工程学院,江苏常州213164 [2]常州市环境监测中心,江苏常州213001 |
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| 基金项目： | 国家自然基金（21107006）和国家环境保护部公益性项目（201109052）联合资助 |
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| 摘 要： | 摘要：铬渣中含有毒性较强的六价铬化合物，其严重污染环境。本文通过实验室模拟试验，研究了硫代硫酸钠、亚硫酸钠、抗坏血酸和硫酸亚铁等还原剂对铬渣污染土壤中六价铬的解毒效果。探讨了还原剂的浓度、pH和反应时间对六价铬还原效果的影响。结果表明：亚硫酸钠浓度为1mol／L、pH9．5和反应时间为15min时对六价铬的还原效果最佳。
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| 关 键 词： | 还原 修复 六价铬 污染土壤 |
Study on Remediation of Hexavalent Chromic -polluted Soils by Reduction Method |
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| Liang Jinli,＇,Cai Huanxing,＇,Duan Xuemeiz,Dai Xuanli,Yu Yijun.Study on Remediation of Hexavalent Chromic -polluted Soils by Reduction Method[J].Environmental Science and Management,2013(3):80-83. |
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| Authors: | Liang Jinli ＇ Cai Huanxing ＇ Duan Xuemeiz Dai Xuanli Yu Yijun |
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| Institution: | 1. School of Environment and Safety Engineering, Changzhou University, Changzhou 213164, China; 2. Changzhou Environment Monitoring Center, Changzhou 213001, China) |
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| Abstract: | Chromium （VI） contained in chromic slag is one of the most dangerous toxic pollutants. Laboratory simulation tests were conducted to examine the effects of different reducing reagents such as Na2S203 , Na2SO3 , ascorbic acid and FeSO4 ~ 7H20 in extracting VI from contaminated soils. The effects of reagent concentration, pH and reaction time on removal efficiency were investigated. The highest removal rate was obtained under the optimal conditions of 1 mol/L NaESO3 and pH 9. 5 for a reac- tion time of 15 min. |
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| Keywords: | ：reduction remediation hexavalent chromic polluted soil |
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