评估合流制排水系统中雨水事件时污水沉积物对悬浮固体负荷的贡献。

Assessment of the contribution of sewer deposits to suspended solids loads in combined sewer systems during rain events.

机构信息

LEESU (UMR-MA-102), UPEC, UPEMLV, ENPC, Agro ParisTech, Université Paris-Est, 6 et 8 avenue Blaise Pascal, Cité Descartes, 77455, Champs-sur-Marne Cedex 2, France,

出版信息

Environ Sci Pollut Res Int. 2014 Apr;21(8):5311-7. doi: 10.1007/s11356-013-2395-1. Epub 2013 Dec 5.

DOI:10.1007/s11356-013-2395-1

PMID:24306728

Abstract

Within the French observatories network SOERE "URBIS," databases of continuous turbidity measurements accumulating hundreds of events and many dry weather days are available for two sites with different features (Clichy in Paris and Ecully in Lyon). These measurements, converted into total suspended solids (TSS) concentration using TSS-turbidity relationships and combined with a model of runoff event mean concentration, enable the assessment of the contribution of sewer deposits to wet weather TSS loads observed at the outlet of the two watersheds. Results show that the contribution of sewer deposits to wet weather suspended solid's discharges is important but variable (between 20 and 80 % of the mass at the outlet depending on the event), including a site allegedly free of (coarse) sewer deposits. The uncertainties associated to these results are assessed too.

摘要

在法国观测站网络 SOERE“URBIS”中，有两个具有不同特征的站点（巴黎克利希和里昂埃库利）的连续浊度测量数据库，积累了数百个事件和许多干燥天气日的数据。这些测量值通过浊度-总悬浮固体（TSS）关系转换为 TSS 浓度，并与径流事件平均浓度模型相结合，可评估两个流域出口处观测到的雨天 TSS 负荷中下水道沉积物的贡献。结果表明，下水道沉积物对雨天悬浮物排放的贡献是重要的，但具有变异性（取决于事件，在出口处的质量占比在 20%至 80%之间），包括据称没有（粗）下水道沉积物的站点。这些结果的不确定性也进行了评估。