Bares V, Stránský D, Sýkora P
Department of Sanitary and Ecological Engineering, Czech Technical University in Prague, Thakurova 7, 166 29 Prague 6, Czech Republic.
Water Sci Technol. 2009;60(1):1-7. doi: 10.2166/wst.2009.280.
The paper deals with a method for quantification of infiltrating groundwater based on the variation of diurnal pollutant load and continuous water quality and quantity monitoring. Although the method gives us the potential to separate particular components of wastewater hygrograph, several aspects of the method should be discussed. Therefore, the paper investigates the cost-effectiveness, the relevance of pollutant load from surface waters (groundwater) and the influence of measurement time step. These aspects were studied in an experimental catchment of Prague sewer system, Czech Republic, within a three-month period. The results indicate high contribution of parasitic waters on night minimal discharge. Taking into account the uncertainty of the results and time-consuming maintenance of the sensor, the principal advantages of the method are evaluated. The study introduces a promising potential of the discussed measuring concept for quantification of groundwater infiltrating into the sewer system. It is shown that the conventional approach is sufficient and cost-effective even in those catchments, where significant contribution of foul sewage in night minima would have been assumed.
本文探讨了一种基于日污染物负荷变化以及连续水质和水量监测来量化渗入地下水的方法。尽管该方法使我们有潜力分离出废水流量过程线的特定组成部分，但仍应讨论该方法的几个方面。因此，本文研究了成本效益、地表水（地下水）污染物负荷的相关性以及测量时间步长的影响。在捷克共和国布拉格下水道系统的一个实验集水区内，对这些方面进行了为期三个月的研究。结果表明寄生水对夜间最小流量有很大贡献。考虑到结果的不确定性以及传感器维护的耗时性，对该方法的主要优点进行了评估。该研究介绍了所讨论的测量概念在量化渗入下水道系统的地下水方面的广阔前景。结果表明，即使在那些本以为夜间最小流量中污水贡献显著的集水区，传统方法也足够且具有成本效益。
