Experiment and Simulation on Adsorption of 3,5,6-Trichloro-2-Pyridinol in Typical Farmland of Purple Soil, Southwestern China
文献类型：期刊论文
| 作者 | Lei, Wenjuan1,2 ; Zhou, Xiangyang3
|
| 刊名 | SOIL & SEDIMENT CONTAMINATION
 |
| 出版日期 | 2017 |
| 卷号 | 26期号:4页码:345-363 |
| 关键词 | Isothermal Adsorption 3 Breakthrough Curve 5 Simulation 6-trichloro-2-pyridinol Purple Soil |
| ISSN号 | 1532-0383 |
| DOI | 10.1080/15320383.2017.1299687 |
| 通讯作者 | Wenjuan Lei |
| 英文摘要 | The adsorption behaviors of 3,5,6-trichloro-2-pyridinol (TCP) are explored by experiment and simulation on typical farmland of purple soil in southwestern China. Samples are collected from three farmlands with seasonal crop rotation of wheat-corn, rice-rape and vegetables respectively, and isothermal adsorption, breakthrough curves (BTCs) of packed and intact soil column experiments are tested. Adsorption parameters are also obtained by inversion simulation of appropriate model. The results reveal that the adsorption varies substantially in different farmlands and environmental conditions. Isothermal adsorption displays a decrease trend from the soil with crop of wheat-corn to rice-rape, then vegetables, and the main influencing factor is content of clay and silt. Langmuir model fits the isothermal adsorption best (R-2 = 0.99), and the estimated adsorption capacity (q(m)) of soil is 2.73, 1.19 and 0.55 mg/g, corresponding to the sample from farmland of wheat-corn, rice-rape and vegetable, respectively. However, the adsorbed amount by unit mass is almost the same in packed columns because of the incomplete interaction between TCP and soil, accounting for 0.59-3.24% of q(m). In intact soil columns, the adsorption on TCP decreases further, 0.13-1.15% of q(m). Thomas model fits TCP's adsorption well in packed soil columns (R-2 >= 0.97) but poorly in intact soil because of the preferential flow, and the fact that the more intensive the preferential flow, the poorer is the performance of the model. |
| 语种 | 英语 |
| WOS记录号 | WOS:000417652400001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20720]  |
| 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 |
| 作者单位 | 1.Univ Sichuan, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Sichuan, Peoples R China 3.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lei, Wenjuan,Zhou, Xiangyang. Experiment and Simulation on Adsorption of 3,5,6-Trichloro-2-Pyridinol in Typical Farmland of Purple Soil, Southwestern China[J]. SOIL & SEDIMENT CONTAMINATION,2017,26(4):345-363. |
| APA | Lei, Wenjuan,&Zhou, Xiangyang.(2017).Experiment and Simulation on Adsorption of 3,5,6-Trichloro-2-Pyridinol in Typical Farmland of Purple Soil, Southwestern China.SOIL & SEDIMENT CONTAMINATION,26(4),345-363. |
| MLA | Lei, Wenjuan,et al."Experiment and Simulation on Adsorption of 3,5,6-Trichloro-2-Pyridinol in Typical Farmland of Purple Soil, Southwestern China".SOIL & SEDIMENT CONTAMINATION 26.4(2017):345-363. |
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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