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甲基β环糊精对污染场地土壤中多环芳烃的异位增效洗脱修复研究
文献类型：期刊论文
| 作者 | 孙明明 ; 滕应 ; 骆永明 ; 李振高 ; 贾仲君 ; 张满云 |
| 刊名 | 环境科学
 |
| 出版日期 | 2013-06-15 |
| 卷号 | 34期号:6页码:2428-2435 |
| 关键词 | 多环芳烃 甲基β环糊精 土壤淋洗 Tenax 终点判断 |
| ISSN号 | 0250-3301 |
| 其他题名 | Ex-situ Ｒemediation of PAHs Contaminated Site by Successive Methyl-β-Cyclodextrin Enhanced Soil Washing |
| 产权排序 | 中国科学院土壤环境与污染修复重点实验室(南京土壤研究所);中国科学院大学;中国科学院烟台海岸带研究所; |
| 通讯作者 | 滕应 E-mail:yteng@ issas.ac.cn |
| 中文摘要 | 针对长三角典型区域内某焦化厂PAHs污染场地土壤,运用环境友好的淋洗剂甲基β环糊精(MCD),嵌合超声强化、升温辅助等增效技术,筛选出在100 g·L-1MCD,50℃水浴和35 kHz超声30 min条件下,对土壤连续淋洗5次,发现土壤中3环、4环、5(+6)环和全量PAHs的最大去除率分别为96.7%±2.4%、89.7%±3.2%、76.3%±2.2%和91.3%±3.1%.同时采用Tenax TA树脂时间连续提取法,监测每次连续淋洗后土壤中各组分PAHs解吸特性,发现随着淋洗次数的增加,土壤中PAHs的400 h Tenax可提取量逐渐减少,PAHs的快速解吸组分(Fr)和慢速解吸组分... |
| 英文摘要 | Polycyclic aromatic hydrocarbon (PAH) polluted sites caused by abandoned coking plants have attracted great attentions. This study investigated the feasibility of using methyl-β-cyclodextrin (MCD) solution to enhance ex situ soil washing for extracting PAHs. Treatment with elevated temperature (50℃) in combination with ultrasonication (35 kHz, 30 min) at 100 g·L~(-1) was effective. It was found that 96.7%±2.4% of 3-ring PAH, 89.7%±3.2% of 4-ring PAH, 76.3%±2.2% of 5(+6)-ring PAH and 91.3%±3.1% of total PAHs were removed from soil after five successive washing cycles. The desorption kinetics of PAHs from contaminated soil was determined before and after successive washings. The 400 h Tenax extraction of PAHs from soil was decreasing gradually with increasing washing times. Furthermore, the F_r, F_(sl),k_r,k_(sl) and k_(vl) were significantly lower than those of CK (P<0.01). Therefore, considering the removal efficiency and potential environmental risk after soil washing, successive washing three times was selected as a reasonable parameter. These results have practical implications for site risk assessment and cleanup strategies. |
| 学科主题 | 环境工程学 |
| 收录类别 | CSCD |
| 资助信息 | 国家自然科学基金项目(41271329);; 江苏省自然科学基金创新学者攀登项目(BK2009016) |
| 语种 | 中文 |
| CSCD记录号 | CSCD:4838160 |
| 公开日期 | 2013-08-15 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/6553]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 推荐引用方式 GB/T 7714 | 孙明明,滕应,骆永明,等. 甲基β环糊精对污染场地土壤中多环芳烃的异位增效洗脱修复研究[J]. 环境科学,2013,34(6):2428-2435. |
| APA | 孙明明,滕应,骆永明,李振高,贾仲君,&张满云.(2013).甲基β环糊精对污染场地土壤中多环芳烃的异位增效洗脱修复研究.环境科学,34(6),2428-2435. |
| MLA | 孙明明,et al."甲基β环糊精对污染场地土壤中多环芳烃的异位增效洗脱修复研究".环境科学 34.6(2013):2428-2435. |
入库方式： OAI收割
来源：烟台海岸带研究所
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