| Fenton氧化处理爆炸物污染土壤的实验研究 |
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| 引用本文： | 何义亮,Joseph B.Hughes,Sung SooHan.Fenton氧化处理爆炸物污染土壤的实验研究[J].环境科学学报,2007,27(10):1657-1662. |
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| 作者姓名： | 何义亮 Joseph B.Hughes Sung SooHan |
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| 作者单位： | 1. School of Civil and Environmental Engineering,Georgia Institute of Technology,Atlanta.,GA,30332,USA;上海交通大学环境科学与工程学院,上海,200240
2. School of Civil and Environmental Engineering,Georgia Institute of Technology,Atlanta.,GA,30332,USA |
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| 摘 要： | 采用摇瓶和玻璃柱试验考察了Fenton氧化处理爆炸物污染土壤中2,4-DNT、2,6-DNT以及COD等的去除效果及其最佳参数.当3%H2O2投加量达到26.46mmol、FeSO4和H2O2的物质的量之比约为1∶73.56时,2,4-DNT和2,6-DNT均可被完全氧化,COD去除率可达到87%.对于2,4-DNT和2,6-DNT,反应时间只需要2h,但要同时去除其它芳香族硝基化合物,则反应时间需要超过8h.土壤直接Fenton氧化的效果并不理想,而对洗出液进行Fenton氧化可以取得很好的效果.通过反应动力学分析和丙酮抑制试验得出,2,4-DNT比2,6-DNT容易氧化.GC-MS分析结果表明,不仅土壤中的2,4-DNT、2,6-DNT可被氧化,其它的硝基芳香族有机化合物也可被氧化去除.
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| 关 键 词： | Fenton氧化 爆炸物污染土壤 2 4-DNT 2 6-DNT |
| 文章编号： | 0253-2468（2007）10-1657-06 |
| 收稿时间： | 2006/9/28 0:00:00 |
| 修稿时间： | 2006-09-28 |
Fenton treatment of 2,4-and 2,6-dinitrotoluene in soil contaminated with explosive compounds |
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| HE Yiliang,Joseph B.Hughes and Sung SooHan.Fenton treatment of 2,4-and 2,6-dinitrotoluene in soil contaminated with explosive compounds[J].Acta Scientiae Circumstantiae,2007,27(10):1657-1662. |
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| Authors: | HE Yiliang Joseph BHughes and Sung SooHan |
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| Institution: | 1. School of Civil and Environmental Engineering, Georgia Institute of Technology , Atlanta, GA, 30332, USA; 2. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240 |
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| Abstract: | The performance and technical parameters of Fenton treatment of 2,4-and 2,6-dinitrotoluene(DNT)in soil contaminated with explosive compounds has been investigated at laboratory scale.The experimental results showed that 2,4-and 2,6-DNT were removed completely in two hours while 87% of COD was removed in eight hours.The optimal H2O2 concentration was 26.46mmol,corresponding to a FeSO4:H2O2 mole ratio of 1:36.78~73.56.Much better removal performance can be achieved by Fenton oxidation treatment of washing-out liquid than by direct oxidation of contaminated soil on a column.Based on kinetic analysis and acetone inhibition assays,it was concluded that Fenton oxidation of 2,4-DNT is easier than oxidation of 2,6-DNT.GC-MS analysis showed that not only 2,4-DNT and 2,6-DNT but also other nitroaromatic organic compounds were totally removed during Fenton oxidation treatment. |
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| Keywords: | Fenton oxidation explosives contaminated soil 2 4-DNT 2 6-DNT |
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