University of Lyon, INSA Lyon, Laboratory of Wastes Waters Environment and Pollutions (DEEP), 69621 Villeurbanne, France.
University of Lyon, INSA Lyon, Laboratory of Fluid Mechanics and Acoustics (LMFA), 69621 Villeurbanne, France.
J Environ Manage. 2018 Jun 1;215:273-282. doi: 10.1016/j.jenvman.2018.03.043.
In the past ten years, governments from the European Union have been encouraged to collect volume and quality data for all the effluent overflows from separated stormwater and combined sewer systems that result in a significant environmental impact on receiving water bodies. Methods to monitor and control these flows require improvements, particularly for complex Combined Sewer Overflow (CSO) structures. The DSM-flux (Device for Stormwater and combined sewer flows Monitoring and the control of pollutant fluxes) is a new pre-designed and pre-calibrated channel that provides appropriate hydraulic conditions suitable for measurement of overflow rates and volumes by means of one water level gauge. In this paper, a stage-discharge relation for the DSM-flux is obtained experimentally and validated for multiple inflow hydraulic configurations. Uncertainties in CSO discharges and volumes are estimated within the Guide to the expression of Uncertainty in Measurement (GUM) framework. Whatever the upstream hydraulic conditions are, relative uncertainties are lower than 15% and 2% for the investigated discharges and volumes, respectively.
在过去的十年中，鼓励来自欧盟的政府收集所有对受纳水体造成重大环境影响的雨水和合流制污水系统的溢流水量和水质数据。监测和控制这些水流的方法需要改进，特别是对于复杂的合流制污水溢流（CSO）结构。DSM-flux（用于雨水和合流制污水流量监测以及污染物通量控制的设备）是一种新的预设计和预校准的渠道，提供了合适的水力条件，适合通过一个水位计测量溢流水量和体积。在本文中，通过实验获得了 DSM-flux 的水位-流量关系，并针对多种入流水力配置进行了验证。在测量不确定度表示指南（GUM）框架内估算了 CSO 排放量和体积的不确定度。无论上游水力条件如何，对于研究中的排放量和体积，相对不确定度分别低于 15%和 2%。
