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首页> 外文期刊>Journal of water resource and protection >Linking a Simulated Annealing Based Optimization Model with PHT3D Simulation Model for Chemically Reactive Transport Processes to Optimally Characterize Unknown Contaminant Sources in a Former Mine Site in Australia
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Linking a Simulated Annealing Based Optimization Model with PHT3D Simulation Model for Chemically Reactive Transport Processes to Optimally Characterize Unknown Contaminant Sources in a Former Mine Site in Australia

机译：用PHT3D仿真模型将基于模拟的退火的优化模型与化学反应运输过程进行了最佳特征在澳大利亚前矿山现场未知污染源的最佳污染源

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摘要

Historical mining activities often lead to continuing wide spread contaminants in both groundwater and surface water in previously operational mine site areas. The contamination may continue for many years after closing down the mining activities. The essential first step for sustainable management of groundwater and development of remediation strategies is the unknown contaminant source characterization. In a mining site, there are multiple species of contaminants involving complex geochemical processes. It is difficult to identify the potential sources and pathways incorporating the chemically reactive multiple species of contaminants making the source characterization process more challenging. To address this issue, a reactive transport simulation model PHT3D is linked to a Simulated Annealing based the optimum decision model. The numerical simulation model PHT3D is utilized for numerically simulating the reactive transport process involving multiple species in the former mine site area. The simulation results from the calibrated PHT3D model are illustrated, with and without incorporating the chemical reactions. These comparisons show the utility of using a reactive, geochemical transport process' simulation model. Performance evaluation of the linked simulation optimization methodology is evaluated for a contamination scenario in a former mine site in Queensland, Australia. These performance evaluation results illustrate the applicability of linked simulation optimization model to identify the source characteristics while using PHT3D as a numerical reactive chemical species' transport simulation model for the hydro-geochemically complex aquifer study area.
机译：历史采矿活动往往导致地下水和地表水中的持续普遍蔓延污染物在以前的运营矿山地区。缩小采矿活动后，污染可能持续多年。可持续管理地下水和修复策略发展的重要第一步是未知的污染源表征。在采矿部位，有多种涉及复杂地球化学过程的污染物。难以识别包含化学反应性多种污染物的潜在来源和途径，使得源表征过程更具挑战性。为了解决这个问题，反应运输仿真模型PHT3D与基于最佳决策模型的模拟退火相关联。数值模拟模型PHT3D用于数值模拟涉及前矿地区多种物种的反应运输过程。校准PHT3D模型的模拟结果被示出，有和不掺入化学反应。这些比较显示了使用反应性地球化学运输过程模拟模型的效用。在澳大利亚昆士兰州前矿场的污染情况评估了链接模拟优化方法的性能评估。这些性能评估结果说明了链接模拟优化模型的适用性，以识别使用PHT3D作为水力地球化学复杂含水层研究区域的数值反应化学物质的运输模拟模型的源特征。

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