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| 难降解有机物污染底质原位修复技术研究进展 | |
| 引用本文： | 李轶,李晶,胡洪营,冯毅.难降解有机物污染底质原位修复技术研究进展[J].生态环境,2008,17(6). |
| 作者姓名： | 李轶 李晶 胡洪营 冯毅 |
| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,江苏,南京,210098 2. 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 3. 江苏省泰兴中学生物组,江苏,泰兴,225400 |
| 基金项目： | 水文水资源与水利工程科学国家重点实验室开放基金项目 |
| 摘 要： | 随着水环境外污染源得到有效控制,底质污染逐渐成为人们关注的焦点.底质中的污染物尤其是难降解有机物可通过生物富集和生物放大等过程,进一步影响陆生生物和人类的健康.因此,对底质中难降解有机物的修复是目前所迫切需要解决的环境问题之一.基于异位修复成本较高易造成二次污染等缺点,文章针对难降解有机物污染底质,探讨了原位修复技术的研究进展,自然修复成本较低,对生态环境不产生干扰,但不适用于高浓度污染底质;植物修复操作简单,能有效防止污染底质再悬浮,但对高浓度难降解有机物耐受性较低;微生物修复适用范围广,修复效果较为显著,但菌体易流失,对环境的适应性较差.于是,固定化修复技术应运而生,固定化技术能解决传统的微生物修复存在的很多问题,但固定化载体的重复可利用性和再生性问题仍有待解决.文章最后对今后难降解有机物污染底质的研究方向进行了展望,由于污染底质多为复合污染,各取所长的联合修复技术将成为未来的研究热点. |
| 关 键 词： | 原位修复 难降解有机物 底质污染 |
Review on in-situ remediation of sediments contaminated by refractory organic pollutants |
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| Li Yi,Li Jing,Hu Hongying,Feng Yi.Review on in-situ remediation of sediments contaminated by refractory organic pollutants[J].Ecology and Environmnet,2008,17(6). | |
| Authors: | Li Yi Li Jing Hu Hongying Feng Yi |
| Institution: | Li Yi1,Li Jing1,Hu Hongying2,Feng Yi3 1. State Key Laboratory of Hydrology Water Resources , Hydraulic Engineering,Hohai University,Nanjing 210098,China,2. ESPC State Key Joint Laboratory,Department of Environmental Science , Engineering,Tsinghua University,Beijing 100084,3. Department of Biology,High School of Taixing,Taixing 225400 |
| Abstract: | Sediment contamination has recently been paid more attention to along with external source of pollution in the aquatic environment. Some sediment pollutants, especially the refractory organic pollutants can be bioaccumulated through the food chain and pose health risks to wildlife and human consumers. Consequently, remediation of sediments contaminated by refractory organic pollutants is one of the urgent environmental issues at present. Ex-situ remediation has been well studied all over the world, but it h... |
| Keywords: | in-situ remediation refractory organics sediment contamination |
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