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首页> 外文期刊>International journal of sustainable development and planning >STORMWATER QUALITY CONTROL FOR SUSTAINABLE URBAN DRAINAGE SYSTEMS
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STORMWATER QUALITY CONTROL FOR SUSTAINABLE URBAN DRAINAGE SYSTEMS

机译：可持续城市排水系统的暴雨质量控制

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The paper deals with the performance assessment of stormwater facilities in mitigating the negative effects of urban runoff pollutants carried both to the receiving environment and to the urban drainage system. Experimental campaigns and numerical simulations have been carried out on a residential catchment of Pavia, Lombardia, Italy. The rainfall-runoff process and the pollutant dynamics in the catchment and combined sewer network were simulated using a conceptual model based on an instantaneous unit hydrograph of a single linear reservoir system for individual events as well as for a continuous run of events and inter-event periods over one year. Several design configurations and operating conditions of flow regulators (FRs) and stormwater detention tanks (SWDTs) have been evaluated by defining performance indicators that simultaneously account for a large number of technical, environmental, and socio-economic constraints. On many occasions, wet-weather pollutant concentrations substantially exceeded what might normally be expected of raw wastewater, which thus required stormwater treatment facilities for the environmental and ecological protection of the receiving water. FR was unable to control the acute pollution impact on the river, thereby causing severe ecological deterioration. SWDT was very appropriate to safeguard both the quantity and the quality of the entire chain, consisting of the sewer system, the treatment plant, and the receiving water. The results of this research provide information about a key issue related to the implementation of environmental policies in large urban areas for the recovery of impacted receiving water bodies.
机译：本文讨论了雨水设施在减轻城市径流污染物对接收环境和城市排水系统的负面影响方面的性能评估。在意大利伦巴第大区帕维亚的住宅集水区进行了实验活动和数值模拟。使用基于单个线性水库系统瞬时单位水位图的单个事件以及连续事件和事件间的概念模型模拟集水区和联合下水道网络中的降雨径流过程和污染物动态一年以上的期限。通过定义性能指标来评估流量调节器（FR）和雨水滞留池（SWDT）的几种设计配置和运行条件，这些性能指标同时考虑了许多技术，环境和社会经济方面的限制。在许多情况下，潮湿天气的污染物浓度大大超过了原废水通常所期望的水平，因此需要雨水处理设施来对接收水进行环境保护和生态保护。 FR无法控制对河流的严重污染影响，从而导致严重的生态恶化。 SWDT非常适合维护包括下水道系统，污水处理厂和接收水在内的整个链条的数量和质量。这项研究的结果提供了有关在大城市地区实施环境政策以恢复受影响的接收水体的关键问题的信息。

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