DISTRIBUTION AND RETENTION OF PAHs IN A CONSTRUCTED WETLAND IN THE YANGTZE RIVER DELTA, CHINA
文献类型：期刊论文
| 作者 | Zheng, Jun ; Wang, Weidong ; Yin, Chengqing |
| 刊名 | FRESENIUS ENVIRONMENTAL BULLETIN
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:9页码:2594－2602 |
| 关键词 | Polycyclic aromatic hydrocarbons (PAHs) sedimentation ecological wetland systems the plant-bed/ditch systems drinking water source |
| ISSN号 | 1018-4619 |
| 中文摘要 | Shijiuyang constructed wetland (SJY-CW) is the largest drinking source water treatment wetland (110 hm(2)) in China so far. The performance of water quality improvement, with particular reference to persistent organic pollutants (POPs), through this wetland has attracted attention from the scientific community and makes great sense to human health. This work reported on the distribution and retention of 16 kinds of priority polycyclic aromatic hydrocarbons (PAHs) in the SJY-CW. The average content of total PAHs (Sigma PAHs) in the water phase of SJY-CW was 384.8 ng/L, and the overall removal efficiency was 26.1 %. After 1-year operation, the mean sedimentary Sigma PAHs content in the wetland was 166.8 ng/g and, compared with the sedimentary PAHs level in its source river, the wetland had relieved the sedimentary PAHs risk from the aquatic environment. The wetland sediments became a huge potential sink for PAHs from source water. The mean sedimentary Sigma PAHs value in the plant-bed/ditch system was 201.6 ng/g (about two to three times that of 90.1 ng/g in inlet and 69.4 ng/g in outlet). Notably, the mean of 4-6 ring PAHs proportion in the plant-bed/ditch system was 46.3 % (much higher than proportion of 26.3 % in inlet and outlet). It could be inferred that sedimentation was the major retention process for PAHs during the initial operation period of SJY-CW, and the highly heterogeneous plant-bed/ditch system exhibited effective accumulation of PAHs from source water. |
| WOS记录号 | WOS:000310112000010 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7845]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zheng, Jun,Wang, Weidong,Yin, Chengqing. DISTRIBUTION AND RETENTION OF PAHs IN A CONSTRUCTED WETLAND IN THE YANGTZE RIVER DELTA, CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2012,21(9):2594－2602. |
| APA | Zheng, Jun,Wang, Weidong,&Yin, Chengqing.(2012).DISTRIBUTION AND RETENTION OF PAHs IN A CONSTRUCTED WETLAND IN THE YANGTZE RIVER DELTA, CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,21(9),2594－2602. |
| MLA | Zheng, Jun,et al."DISTRIBUTION AND RETENTION OF PAHs IN A CONSTRUCTED WETLAND IN THE YANGTZE RIVER DELTA, CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 21.9(2012):2594－2602. |
入库方式： OAI收割
来源：生态环境研究中心
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