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首页> 外文期刊>Journal of Solid Waste Technology and Management >INFLUENCE OF CONTAMINANT SOURCE NODE SPACING AND DISPERSIVITY ON DETECTION CAPABILITY OF GROUNDWATER MONITORING NETWORKS
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INFLUENCE OF CONTAMINANT SOURCE NODE SPACING AND DISPERSIVITY ON DETECTION CAPABILITY OF GROUNDWATER MONITORING NETWORKS

机译：污染源节点间距和分散度对地下水监测网络检测能力的影响

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摘要

Effects of contaminant source node spacing and dispersivity on the detection capability of groundwater monitoring networks were evaluated. The analysis considered five-, seven-, and nine-well networks near a rectangular landfill located 100 m from a buffer zone boundary, a distance limit within which contaminants should be detected. Various combinations of source node spacing, longitudinal and transverse dispersivity, and contaminant source width were input to a computer model, which computed the detection capability of groundwater monitoring networks. Varying contaminant source node spacing from 1 to 10 m had little effect on the capability of monitoring networks to detect contaminants released from the landfill. Similarly, over a range of 0.2 to 10 m, longitudinal dispersivity had little effect on the detection efficiency of any monitoring network. By contrast, changing transverse dispersivity had considerable effect on detection capability of monitoring networks. For a longitudinal dispersivity and contaminant source width of 1 m, increasing transverse dispersivity from 0.1 to 0.2 m increased detection efficiency by 8 to 20%. This study suggests that transverse dispersivity should be carefully evaluated for site specific-conditions, and groundwater monitoring strategies should emphasize uncertainty in this parameter.
机译：评估了污染物源节点间距和分散度对地下水监测网络检测能力的影响。分析考虑了在距缓冲区边界100 m处的矩形垃圾填埋场附近的五井，七井和九井网络，该距离应在其中检测污染物的距离限制内。源节点间距，纵向和横向分散度以及污染物源宽度的各种组合被输入到计算机模型中，该模型计算了地下水监测网络的探测能力。污染物源节点的间距在1到10 m之间变化对监视网络检测从垃圾填埋场释放的污染物的能力影响不大。同样，在0.2至10 m的范围内，纵向色散对任何监测网络的探测效率几乎没有影响。相比之下，改变横向分散度对监测网络的检测能力有很大影响。对于1m的纵向分散度和污染物源宽度，将0.1到0.2m的横向分散度增加可以将检测效率提高8-20％。这项研究表明，应针对特定地点的条件仔细评估横向分散性，而地下水监测策略应强调该参数的不确定性。

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