Evaluation of sewer infiltration/inflow using COD mass flux method: case study in Prague.
Evaluation of sewer infiltration/inflow using COD mass flux method: case study in Prague.
复制标题
使用 COD 质量通量法评估下水道渗透/流入：布拉格案例研究。
DOI：
10.2166/wst.2012.229
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
P. Sýkora
中科院分区：
文献类型：
--
作者：
V. Bareš;D. Stránský;P. Sýkora
布拉格市的合流下水道系统与其他相关地点类似，受到渗入沃茨的强烈影响。了解其体积是排水系统运行、维护和改造的重要参数之一。该方法是基于昼夜化学需氧量（COD）负荷的变化和连续的水质监测，使用在线吸收光谱。这种方法允许识别的昼夜废水过程线的各个组成部分，特别是寄生水流的废水排放的贡献。使用蒙特卡罗模拟对7年的流速数据系列进行统计相关性检验。结果表明，这种方法的应用提供了具体的相关信息，在整个下水道系统中的各个子集水区，特别是在绝对值和相对值的I/I和结构状态指标。长期数据系列的处理提供了关于监测期长度对所获得结果的相关性的重要性的明确信息。
The combined sewer system of the City of Prague, similar to other relevant locations, is strongly affected by infiltrating waters. The knowledge of their volume is one of the important parameters with respect to sewer system operation, maintenance and reconstruction. The methodology is based on the variation of diurnal chemical oxygen demand (COD) load and continuous water quality monitoring using in-line absorption spectrometry. This approach allows the identification of individual components of the diurnal wastewater hydrograph, in particular the contribution of parasitic water flow to wastewater discharge. The statistical relevance was tested using Monte Carlo simulations on a 7-year data series of flow rate. The results show that application of this methodology provides specific relevant information about individual sub-catchments within an entire sewer system, particularly in terms of absolute and relative values of I/I and structural state indicators. Processing of long-term data series gives clear information about the significance of the monitoring period length for the relevance of obtained results.