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首页> 外文期刊>International Journal of Environmental Science and Technology >Removal of nitrobenzene from wastewater by vertical flow constructed wetland and optimizing substrate composition using Hydrus-1D: optimizing substrate composition of vertical flow constructed wetland for removing nitrobenzene from wastewater
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Removal of nitrobenzene from wastewater by vertical flow constructed wetland and optimizing substrate composition using Hydrus-1D: optimizing substrate composition of vertical flow constructed wetland for removing nitrobenzene from wastewater

机译：通过垂直流动构造的湿地从废水中除去硝基苯并使用氢气-1D优化衬底组成：优化垂直流动构成湿地用于从废水中除去硝基苯的纯净

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摘要

Nitrobenzene is a toxic chemical that is mainly used in industries to produce aniline and many other products, and eventually it is excessively present in industrial wastewaters. In this study, NB removal efficiency data were obtained by experimental scale vertical flow constructed wetlands. Four columns with same size and diameter named as A, B, C and D were used for the experiment and filled with the substrate in three layers having different soil compositions. Synthetic wastewater was prepared in the laboratory and fed to all the wetland columns. The Hydrus-1D model was used to mimic the removal and transport of nitrobenzene by these data with the same boundary conditions. The values of NB removal and the influence of water content and hydraulic conductivity were compared with all the columns, and best composition of substrate was selected on the basis of maximum removal of nitrobenzene. 76.2% was the maximum removal efficiency of NB exhibited by column D, while column A, B and C were having 50.2%, 55.8% and 65.9%, respectively.
机译：硝基苯是一种有毒化学品，主要用于生产苯胺和许多其他产品的行业，最终它过度存在于工业废水中。在本研究中，通过实验规模垂直流动构造的湿地获得了NB去除效率数据。使用具有相同尺寸和直径的四个柱，其名为A，B，C和D用于实验并用具有不同土壤组合物的三层填充基板。在实验室中制备合成废水，并送入所有湿地柱。氢气-1D模型用于模拟这些数据的除去和转运硝基苯，具有相同的边界条件。与所有柱进行比较去除Nb去除和水含量的影响和液压导电的影响，基于最大去除硝基苯，选择最佳的基材组成。 76.2％是柱D展示的Nb的最大去除效率，而柱A，B和C分别具有50.2％，55.8％和65.9％。

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