Polyoxymethylene passive samplers to assess the effectiveness of biochar by reducing the content of freely dissolved fipronil and ethiprole
文献类型：期刊论文
| 作者 | Dong, Fengshou; Li, Shasha ; Wang, Pingping; Zheng, Yongquan; Liu, Xingang; Wu, Xiaohu; Xu, Jun
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2018-07-15 |
| 卷号 | 630页码:960-966 |
| 关键词 | Fipronil Ethiprole Biochar Polyoxymethylene Freely dissolved concentrations |
| ISSN号 | 0048-9697 |
| 文献子类 | Article |
| 英文摘要 | An equilibrium passive sampler based on polyoxymethylene (POM) was used to determine the freely dissolved concentrations (C-free) of fipronil and ethiprole. The sorption equilibrium times of fipronil and ethiprole in POM were 14.2 d and 24.0 d, respectively. The POM-water partitioning coefficients (logK(POM-water)) were 2.6 for fipronil and 1.4 for ethiprole. The method was further used to evaluate the sorption behavior of biochars which produced by pyrolysis of Magnolia wood (Magnolia denudata) at 300 degrees C, 500 degrees C and 700 degrees C. The amounts of target compounds adsorbed increased with increasing pyrolysis temperature of the biodiars. Biochars characterized by a low polarity index had better sorption capacity for the target compounds. The additions of biochars to sediment were effective in reducing C-free and the enhancement was found to be more pronounced with high biochar content. C-free in sediment with more organic matter was significantly higher after biochar addition. Increasing the sediment-biochar contact Lime from 7 to 30 cl resulted in an increase in sorption of the compounds. We conclude that Magnolia wood biochar effectively reduces the content of freely dissolved fipronil and ethiprole content in sediment. (C) 2018 Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41014]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Dong, Fengshou,Li, Shasha,Wang, Pingping,et al. Polyoxymethylene passive samplers to assess the effectiveness of biochar by reducing the content of freely dissolved fipronil and ethiprole[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,630:960-966. |
| APA | Dong, Fengshou.,Li, Shasha.,Wang, Pingping.,Zheng, Yongquan.,Liu, Xingang.,...&Xu, Jun.(2018).Polyoxymethylene passive samplers to assess the effectiveness of biochar by reducing the content of freely dissolved fipronil and ethiprole.SCIENCE OF THE TOTAL ENVIRONMENT,630,960-966. |
| MLA | Dong, Fengshou,et al."Polyoxymethylene passive samplers to assess the effectiveness of biochar by reducing the content of freely dissolved fipronil and ethiprole".SCIENCE OF THE TOTAL ENVIRONMENT 630(2018):960-966. |
入库方式： OAI收割
来源：生态环境研究中心
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