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首页> 外文期刊>Advances in Environmental Technology >Simulation of municipal landfill leachate movement in soil by HYDRUS-1D model
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Simulation of municipal landfill leachate movement in soil by HYDRUS-1D model

机译：利用HYDRUS-1D模型模拟市政垃圾渗滤液在土壤中的运动。

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Different numerical and analytical models are presently available that provide the tools to predict pollutant and water transfer processes between the soil surface and the groundwater level. Among the existing models, the Hydrus-1D model has been used for years in the prediction of water and pollutants transfer in the unsaturated zone. The main purpose of this paper was to model the movement of the landfill leachate in the soil at the Aradkouh landfill and predict the changes in nitrogen and phosphorus concentration in the leachate at different depths. Two pilots were used in this study, one included the local soil and the other contained local soil with Vetiver grass (Chrysopogon zizanioides). After its initial purification, the resultant leachate entered the pilot and was collected after passing through the soil. Finally, the flow of the leachate movement as well as the nitrogen and phosphorus concentration changes in soil were modeled by using Hydrus-1D. The prediction model for the phosphate and nitrogen concentration changes at different depths showed that the best results were obtained in the surface charge of 0.12 m3/m2.week and by the pilot with the Vetiver grass. The results showed that the use of Vetiver grass in surface purification increased the efficiency of the purification.
机译：目前可使用不同的数值和分析模型，这些模型提供了预测土壤表面和地下水位之间污染物和水的转移过程的工具。在现有模型中，Hydrus-1D模型已用于预测非饱和区中水和污染物的转移多年。本文的主要目的是模拟Aradkouh垃圾填埋场土壤中垃圾渗滤液的运动，并预测不同深度渗滤液中氮和磷的浓度变化。在这项研究中使用了两个试点，一个试点包括当地土壤，另一个试点包含香根草（Chrysopogon zizanioides）。初步提纯后，所得渗滤液进入中试，并在穿过土壤后收集。最后，利用Hydrus-1D模拟了渗滤液运动的流量以及土壤中氮和磷的浓度变化。对于不同深度的磷酸盐和氮浓度变化的预测模型表明，在香根草的试验下，在表面电荷为0.12 m3 / m2.week时获得了最佳结果。结果表明，香根草在表面净化中的使用提高了净化效率。

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