| 六氯苯和重金属复合污染沉积物的电动力学修复研究 |
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| 引用本文： | 李泰平,袁松虎,林莉,万金忠,徐懿,陆晓华.六氯苯和重金属复合污染沉积物的电动力学修复研究[J].环境工程,2009,27(2). |
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| 作者姓名： | 李泰平 袁松虎 林莉 万金忠 徐懿 陆晓华 |
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| 作者单位： | 华中科技大学环境科学研究所,武汉,430074 |
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| 基金项目： | 国家自然科学基金，华中科技大学自然科学基金 |
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| 摘 要： | 以某化工厂排污沟渠中受六氯苯(hexachlorobenzene,HCB)、锌和镍复合污染的实际沉积物为对象,研究非离子表面活性剂OP-10对沉积物中污染物的增溶解吸效果和电动力学修复污染物的强化迁移效果。解吸实验结果表明:OP-10对HCB增溶解吸效果较好,对重金属离子的解吸有一定的促进作用。电动力学修复发现,随电渗析流进入沉积物中的OP-10很快的吸附在靠近阳极沉积物上,从而阻碍了助剂的输送并影响HCB的迁移,而靠近阴极区域沉积物中的有机质迁移会促进HCB的去除。沉积物pH变化引起的重金属沉淀是制约锌迁移的主要因素。镍的整体迁移效果不明显。
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| 关 键 词： | 沉积物 六氯苯 重金属 OP-10 电动力学修复 |
STUDY ON THE ENHANCED ELECTROKINETIC REMEDY OF A REAL SEDIMENT CONTAMINATED WITH HEXACHLOROBENZENE AND HEAVY METALS |
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| Li Taiping,Yuan Songhu,Lin Li,Wan Jinzhong,Xu Yi,Lu Xiaohua.STUDY ON THE ENHANCED ELECTROKINETIC REMEDY OF A REAL SEDIMENT CONTAMINATED WITH HEXACHLOROBENZENE AND HEAVY METALS[J].Environmental Engineering,2009,27(2). |
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| Authors: | Li Taiping Yuan Songhu Lin Li Wan Jinzhong Xu Yi Lu Xiaohua |
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| Institution: | Environmental Science Research Institute;Huazhong University of Science and Technology;Wuhan 430074;China |
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| Abstract: | The desorption and enhanced electrokinetic(EK) remedy of hexachlorobenzene(HCB),zinc and nickel from a real contaminated sediment with nonionic surfactant OP-10 were investigated.The real sediment contaminated with multiple pollutants for decades were sampled from the ditch of a chemical plant.From the desorption experiment,it was demonstrated that HCB was effectively removed from the sediment and the desorption of heavy metals was also enhanced by OP-10.At the end of electrokinetic process,it was observed ... |
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| Keywords: | OP-10 |
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