Biochar amendment effectively reduces the transport of 3,5,6-trichloro-2-pyridinol (a main degradation product of chlorpyrifos) in purple soil: Experimental and modeling
文献类型：期刊论文
| 作者 | Lei Wenjuan1,4; Tang Xiangyu3 ; Zhou Xiangyang2
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2020 |
| 卷号 | 245页码:UNSP 125651 |
| 关键词 | Biochar 3,5.6-Trichloro-2-pyridinol Reduce leaching Experiment and simulation |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2019.125651 |
| 产权排序 | 3 |
| 通讯作者 | Tang, Xiangyu(xytang@imde.ac.cn) |
| 文献子类 | Article |
| 英文摘要 | This study investigates biochar amendment effectively reduces the transport of polar pollutant 3,5,6-trichloro-2-pyridinol, TCP, a main degradation product of chlorpyrifos, and quantitatively explores the physical and chemical mechanisms through inversion simulation. Thus, five biochar addition rates to soil, 0.0%, 0.5%, 1.0%, 2.5% and 5.0%, are tested and compared. The adsorption isotherms experiment, breakthrough curves, BTCs, in both repacked and undisturbed soil columns are also compared. And finally the non-equilibrium convection-diffusion equation, CDE, is used to uncover the change of hydraulic properties of soil and mass non-equilibrium of TCP in the soils mixed with different contents of biochar. The results show that the addition of biochar can reduce the transportation of TCP significantly in the purple soil with macro pores, and the reduction is mainly attributed to two aspects: increase of adsorption ability and decrease of diffusion coefficient and convection velocity. The former is reflected by the linear increase of K c i value with the increase of biochar addition rate and soil organic matter content. The latter is demonstrated by the dramatic reduction of TCP concentration in outflow of BTC experiment and the delayed leaching time. The inversely simulated results also reveal that the diffusion coefficient decrease from 5.35 to 3.95 when biochar addition rate increases from 0 to 5%. Compared with the repacked soil columns, the preferential flow does not disappear in the undisturbed soil columns, accompanied by a higher maximum concentration, an earlier equilibrium time and a less residual amount. (C) 2019 Elsevier Ltd. All rights reserved. |
| 电子版国际标准刊号 | 1879-1298 |
| WOS关键词 | HYDRAULIC-PROPERTIES ; PYRAZOSULFURON-ETHYL ; PHYSICAL-PROPERTIES ; SORPTION ; DESORPTION ; ATRAZINE ; HERBICIDES ; BIOAVAILABILITY ; WATER ; CHLOROTHALONIL |
| 资助项目 | National Natural Science Foundation of China[41701558] ; 135 Strategic Program of the CAS Institute of Mountain Hazards Environment[SDS-135-1702] ; Science and Technology Funding of Guizhou Province[LH [2017]7290] ; Science and Technology Funding of Guizhou Province[[2018]5781-45] ; Science and Technology Funding of Guizhou Province[[2019]2875] ; Talent Project of Guizhou University[[2018]08] ; Talent Project of Guizhou University[[2017]79] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000521513100092 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; 135 Strategic Program of the CAS Institute of Mountain Hazards Environment ; Science and Technology Funding of Guizhou Province ; Talent Project of Guizhou University |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34120]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Tang Xiangyu |
| 作者单位 | 1.College of Tea Science, Guizhou University, Guiyang, 550025, China; 2.College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China 3.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; 4.College of Architecture & Environment, Sichuan University, Chengdu, 610065, China; |
| 推荐引用方式 GB/T 7714 | Lei Wenjuan,Tang Xiangyu,Zhou Xiangyang. Biochar amendment effectively reduces the transport of 3,5,6-trichloro-2-pyridinol (a main degradation product of chlorpyrifos) in purple soil: Experimental and modeling[J]. CHEMOSPHERE,2020,245:UNSP 125651. |
| APA | Lei Wenjuan,Tang Xiangyu,&Zhou Xiangyang.(2020).Biochar amendment effectively reduces the transport of 3,5,6-trichloro-2-pyridinol (a main degradation product of chlorpyrifos) in purple soil: Experimental and modeling.CHEMOSPHERE,245,UNSP 125651. |
| MLA | Lei Wenjuan,et al."Biochar amendment effectively reduces the transport of 3,5,6-trichloro-2-pyridinol (a main degradation product of chlorpyrifos) in purple soil: Experimental and modeling".CHEMOSPHERE 245(2020):UNSP 125651. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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