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Delineation of wellhead protection areas in Crete, Greece using an analytic element model

机译:使用分析元素模型描绘克里特郡的井口保护区

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Groundwater is one of the main sources of drinking water in many regions and therefore investing in its protection is of paramount importance. A very important step in ensuring water of good quality is the delineation of well head protection areas (WHPAs), which is the focus of this research. The area of interest is the basin of the Keritis River, located near the city of Chania, Crete, Greece. The main contamination threats in the area are: i) olive oil industries ii) cemeteries and iii) urban waste from the towns located near or within the basin. The delineation of WHPAs in this work is performed using a more accurate method than a simple fixed radius around the well, which is currently common practice in Greece. A decision support modeling tool called Wellhead Analytical Element Model (WhAEM) was used for this purpose. WhAEM is a groundwater flow model designed to facilitate the delineation of capture zones and mapping well head protection, using the analytic element method. The unique hydrogeology of the modeled area (location of local heterogeneities, discontinuities, rivers, recharge, no-flow boundaries) is taken into account in order to prevent potentially harmful contaminants reaching the water supply. This process can be used as a management tool by water resources managers, stakeholders and public authorities in order to impose rational measures and potential restrictions in urban, agricultural and industrial activities developed in the area.
机译:地下水是许多地区的饮用水主要来源之一,因此投资其保护是至关重要的。确保良好质量水的一个非常重要的一步是井头保护区(WHPA)的划定,这是本研究的重点。兴趣领域是河流河盆地,位于希腊克里特岛克里特市附近。该地区的主要污染威胁是:i)橄榄油工业II)墓地和III)从盆地附近或内部的城镇废物。在这项工作中的WHPA描绘是使用比井周围简单的固定半径更准确的方法进行的,这是目前希腊的常见做法。用于井口分析元素模型(WHAEM)的决策支持建模工具用于此目的。 Whaem是一种地下水流量模型,旨在利用分析元件方法促进捕获区域的描绘和绘图井头保护。考虑到建模区域的独特水文地质(局部异质性,不连续,河流,充电,无流界限),以防止潜在有害的污染物达到供水。该过程可作为水资源管理人员,利益攸关方和公共当局用作管理工具,以便对该地区开发的城市,农业和工业活动施加理性措施和潜在限制。

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