| 基于伴随状态方法的地下水污染源识别研究 |
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| 引用本文： | 曹彤彤,曾献奎,吴吉春,卢文喜.基于伴随状态方法的地下水污染源识别研究[J].高校地质学报,2016,22(3):563. |
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| 作者姓名： | 曹彤彤 曾献奎 吴吉春 卢文喜 |
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| 摘 要： | 地下水污染源的识别不仅可为地下水治理方案的制定提供依据,还可用于追究相关排污对象的责任。传统的污染源识别方法面临计算负荷的困难,而伴随状态方法只需运行少量的污染物运移模型。通过灵敏度矩阵建立污染源特征与污染物分布的数学关系,根据溶质运移模型推导出伴随状态下的污染源识别模型。分别考虑二维均质、非均质含水层中的单点与多点污染源污染问题,将伴随状态方法应用于污染源特征识别的四个案例中,根据监测数据识别污染源的位置及源强。结果表明,伴随状态方法在地下水污染源识别中有较好的适用性,可用于识别地下水污染源的位置及源强特征,并具有很高的计算效率。
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| 关 键 词： | 伴随状态方法 污染源识别 溶质运移 灵敏度矩阵 |
Identification of Groundwater Contaminant Source Based on Adjoint-state Method |
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| CAO Tongtong,ZENG Xiankui,WU Jichun,LU Wenxi.Identification of Groundwater Contaminant Source Based on Adjoint-state Method[J].Geological Journal of China Universities,2016,22(3):563. |
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| Authors: | CAO Tongtong ZENG Xiankui WU Jichun LU Wenxi |
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| Abstract: | The identification of contaminant source can not only provide a basis for developing groundwater management plan, but also
be convenient to investigate for responsibility of relevant polluters. First, the sensitivity matrix is used to establish the mathematical
relationship between monitoring data and characteristics of contaminant source. Then, adjoint-state method is applied to derive the
identification model of contaminant source. Second, adjoint-state method is applied to four cases where single or multiple sources exist
in two-dimensional homogeneous or heterogeneous media, the location and strength of contaminant sources can be identified according
to the monitoring data. Finally, the availability and effectiveness of adjoint-state method should be validated by comparing the results
from the adjoint-state method with the real characteristics of the contaminant source. The results show that the adjoint-state method has
good applicability in indentifying contaminant source, which can be used to identify the position and strength of groundwater
contaminant source, and can improve calculation efficiency. |
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| Keywords: | adjoint-state method identification of contaminant source solute transport sensitivity matrix |
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