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首页> 外文期刊>Journal of Contaminant Hydrology >Simulation of estrogen transport and behavior in laboratory soil columns using a cellular automata model
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Simulation of estrogen transport and behavior in laboratory soil columns using a cellular automata model

机译：使用细胞自动机模型模拟实验室土壤中雌激素的运输和行为

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摘要

A cellular automata model (CA model) was used to simulate the soil column leaching process of estrogens during the processes of migration and transformation. The results of the simulated leaching experiment showed that the first-order degradation rates of 17α-ethynylestradiol (EE2), 17β-estradiol (E2) and estrone (El) were 0.131 h~(-1) for E2,0.099 h~(-1)for E1 and 0.064 h~(-1) for EE2 in the EE2 and E2 leaching process, and the first-order sorption rates were 5.94 h~(-1) for E2, 5.63 h~(-1) for EE2, 3.125 h~(-1) for E1. Their sorption rates were positively correlated with the n-octanol/water partition coefficients. When the diffusion rate was low, its impact on the simulation results was insignificant. The increase in sorption and degradation rates caused the decrease in the total estrogens that leached. In addition, increasing the sorption rate could delay the emerging time of the maximum concentration of estrogen that leached, whereas increasing the degradation rate could shorten the emerging time of the maximum concentration of estrogen that leached. The comparison made between the experimental data and the simulation results of the CA model and the HYDRUS-1D software showed that the establishment of one-component and multi-component CA models could simulate EE2 and E2 soil column leaching processes, and the CA models achieve an intuitive, dynamic, and visual simulation.
机译：利用细胞自动机模型（CA模型）模拟了迁移和转化过程中雌激素的土壤柱浸出过程。模拟浸出实验的结果表明，对于E2，17α-乙炔雌二醇（EE2），17β-雌二醇（E2）和雌酮（El）的一级降解速率为0.131 h〜（-1），0.099 h〜（- 1）在EE2和E2的浸出过程中，E1为EE2，EE2为0.064 h〜（-1），E2的一级吸附速率为5.94 h〜（-1），EE2为5.63 h〜（-1）， E1为3.125 h〜（-1）。它们的吸附速率与正辛醇/水分配系数呈正相关。当扩散速率较低时，其对模拟结果的影响不明显。吸附和降解速率的增加导致浸出的总雌激素减少。另外，增加吸附速率可以延迟浸出的最大雌激素的出现时间，而增加降解速率可以缩短浸出的最大雌激素的出现时间。通过对CA模型和HYDRUS-1D软件的实验数据与仿真结果的比较表明，建立单组分和多组分CA模型可以模拟EE2和E2土柱淋洗过程，CA模型可以达到直观，动态和视觉模拟。

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  • 来源
    《Journal of Contaminant Hydrology》 |2013年第3期|51-62|共12页
  • 作者

    Qingcai Chen; Jianghong Shi; Xiaowei Liu; Wei Wu; Bo Liu; Hui Zhang;

  • 作者单位

    State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China;

    State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China;

    State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China;

    State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China;

    State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China;

    State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    cellular automata; estrogens; soil column leaching; migration; transformation; HYDRUS-1D;

    机译：细胞自动机雌激素土柱浸出;移民;转型;HYDRUS-1D;

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