| 零价铁处理4-氯硝基苯影响因素的研究 |
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| 引用本文： | 王璐璐,李燕,刘伟京,涂勇,徐军.零价铁处理4-氯硝基苯影响因素的研究[J].安徽农业科学,2011,39(7):4167-4169. |
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| 作者姓名： | 王璐璐 李燕 刘伟京 涂勇 徐军 |
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| 作者单位： | 1. 中国矿业大学江苏省资源环境信息工程重点实验室,江苏,徐州,221008
2. 江苏省环境科学研究院,江苏,南京,210036 |
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| 摘 要： | 目的]去除废水中有机污染物4-氯硝基苯（4-ClNB）。方法]采用零价铁还原技术,研究初始pH值、4-ClNB初始浓度和Fe0投加量3个因素对Fe0还原4-ClNB的影响。结果]pH值对Fe0还原4-ClNB影响较大,初始pH值为3和5时,4-ClNB还原率达100%;pH值为7时,4-ClNB还原率达90%左右,而pH值为9和12时,4-ClNB还原率为80.7%和33.3%。4-ClNB还原转化速率随4-ClNB初始浓度的增加而减小。试验范围内,Fe0投加量越大,4-ClNB的去除率越高。结论]零价铁还原技术可以有效去除废水中的4-ClNB。
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| 关 键 词： | 零价铁 4-氯硝基苯 反应机理 影响因素 |
Degradation of 4-Nitrochlorobenzene by Zero-valent Iron Treatment and Impact Factors |
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| Institution: | WANG Lu-lu et al(China University of Mining and Technology,Jiangsu Key Laboratory of Resources and Environmental Information Engineering,Xuzhou,Jiangsu 221008) |
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| Abstract: | Objective] The aim of the study was to use Fe0 to dispose 4-Nitrochlorobenzene(4-ClNB).Method]Using Fe0 reduction technology,three influences of initial pH,initial concentration of 4-ClNB and Fe0 dosage on degradation for 4-ClNB were investigated.Result]The results showed that pH had a greater impact on the reduction of 4-ClNB with Fe0.The initial pH value was 3 and 5,the reduction rate of 4-ClNB reached 100%;pH value was 7,the reduction rate of 4-ClNB was about 90%,while the pH value was 9 and 12,the reduction rate of 4-ClNB was only 80.7% and 33.3%.The reduction rate of 4-ClNB decreased with increasing of initial concentrations.With more Fe0 amount was added,higher removal efficiency of 4-ClNB was got.Conclusion]The technology of Fe0 reducthon was efficient that could be applied in the degradation of 4-ClNB. |
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| Keywords: | Zero-valent iron 4-Nitrochlorobenzene Reaction mechanism Impact factors |
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