Numerical investigation into the restoration of ocean environments using steelmaking slag
Numerical investigation into the restoration of ocean environments using steelmaking slag
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利用炼钢渣修复海洋环境的数值研究
DOI：
10.1016/j.marpolbul.2018.04.011
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发表时间：
2018
影响因子：
5.8
通讯作者：
Rahmawati Shade
中科院分区：
文献类型：
--
作者：
Mutsuda Hidemi;Miyata Yasuhito;Doi Yasuaki;Rahmawati Shade
在半封闭地区和沿海地区，利用炼钢渣保护海岸，改善海底沉积物的海洋环境。这是通过降低溶解的硫化物浓度来实现的。本文提出并建立了欧拉-拉格朗日模型与海洋环流模型相结合的数值模型，以计算溶解硫化物的平流-扩散以及海洋环流与炼钢渣之间的流体-颗粒相互作用。我们将该模型应用于濑户内海和东京湾的福山内港，并将结果与现场数据进行了比较。数值计算结果与实测结果吻合较好。本文论证了炼钢渣对硫化氢浓度的平流扩散具有控制作用。炼钢渣可作为封闭海域海洋环境修复的有用材料。
Steelmaking slag has been utilized in shore protection and to improve ocean environments of sea bottom sediments in semi-enclosed areas and coastal regions. This is achieved by reducing dissolved sulphide concentration. In this study, a numerical model is proposed and developed using a Eulerian-Lagrangian model coupled with an ocean circulation model to compute advection-diffusion of dissolved sulphides and fluid-particle interactions between ocean circulation and steelmaking slag. We applied the model to the Fukuyama inner harbour in the Seto Inland Sea and Tokyo Bay and compared our results with field data. The numerical results show good agreement with the field results. We demonstrate that steelmaking slag can control advection-diffusion with regard to concentration of hydrogen sulphide. The steelmaking slag could be a useful material in restoration of ocean environments at enclosed sea areas.