Influence of soil moisture on sunflower oil extraction of polycyclic aromatic hydrocarbons from a manufactured gas plant soil
文献类型：期刊论文
| 作者 | Gong, ZQ; Wilke, BM; Alef, K; Li, PJ; Li, PJ, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd,POB 417, Shenyang 110016, Peoples R China |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2005 |
| 卷号 | 343期号:1-3页码:51-59 |
| ISSN号 | 0048-9697 |
| 关键词 | Polycyclic Aromatic Hydrocarbons (Pah) Soil Remediation Moisture Vegetable Oil Extraction Manufactured Gas Plant (Mgp) |
| 英文摘要 | The influence of soil moisture on efficiency of sunflower oil extraction of polycyclic aromatic hydrocarbons (PAHs) from contaminated soil was investigated. The PAH-contaminated soil was collected from a manufactured gas plant (MGP) site in Berlin, Germany. Half of the soil was air-dried, and the other half was kept as field-moist soil. Batch experiments were performed using air-dried and field-moist soils, and sunflower oil was used as extractant at oil/soil ratios of 2:1 and 1:1 (v/m). The experimental data were fitted to a first-order empirical model to describe mass-transfer profiles of the PAHs. Column extraction experiments were also conducted. Field-moist and air-dried soils in the column were extracted using sunflower oil at an oil/soil ratio of 2:1. In the batch experiments, PAHs were more rapidly extracted from air-dried soil than from field-moist soil. Removal rate of total PAH increased 23% at oil/soil ratio of 1:1 and 15.5% at oil/soil ratio of 2:1 after the soil was air dried. The most favorable conditions for batch extraction were air-dried soil, with an oil/soil ratio of 2:1. In the column experiments, the removal rate of total PAH from air-dried soil was 30.7% higher than that from field-moist soil. For field-moist soil, extraction efficiencies of the batch extraction (67.2% and 81.5%) were better than that for column extraction (65.6%). However, this difference between the two methods became less significant for the air-dried soil, with a total removal rate of 96.3% for column extraction and 90.2% and 97% for batch extractions. A mass-balance test was carried out for analytical quality assurance. The results of both batch and column experiments indicated that drying the soil increased efficiency of extraction of PAHs from the MGP soil. (c) 2004 Elsevier B.V. All rights reserved. |
| 学科主题 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000229342400003 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/55133]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
| 通讯作者 | Li, PJ, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd,POB 417, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, ZQ,Wilke, BM,Alef, K,et al. Influence of soil moisture on sunflower oil extraction of polycyclic aromatic hydrocarbons from a manufactured gas plant soil[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2005,343(1-3):51-59. |
| APA | Gong, ZQ,Wilke, BM,Alef, K,Li, PJ,&Li, PJ, Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd,POB 417, Shenyang 110016, Peoples R China.(2005).Influence of soil moisture on sunflower oil extraction of polycyclic aromatic hydrocarbons from a manufactured gas plant soil.SCIENCE OF THE TOTAL ENVIRONMENT,343(1-3),51-59. |
| MLA | Gong, ZQ,et al."Influence of soil moisture on sunflower oil extraction of polycyclic aromatic hydrocarbons from a manufactured gas plant soil".SCIENCE OF THE TOTAL ENVIRONMENT 343.1-3(2005):51-59. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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