A distributed simulation model of water quality and storm water using PWRIM and SWMM in combined sewer pipe systems

使用 PWRIM 和 SWMM 在合流污水管道系统中进行水质和雨水的分布式模拟模型

基本信息

批准号：
10650541
负责人：
WATANABE Masahiro
金额：
$ 1.73万
依托单位：
Ehime University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

项目摘要

Owing to overflows from combined sewer pipe systems, water quality of receiving waters, including urban rivers, in Japan, has become worse year by year. Therefore, appropriate counter-measures that can mitigate the overflows must be developed promptly. In order to achieve this, a practical distributed simulation model of water quality and storm water runoff is investigated, which can simulate precisely both open-channel and surcharged flows and a temporal and spatial variation of runoff-water quality in the pipe systems.In this research, first PWRI Model, which is a lumped simulation model and was developed by the Public Works Research Institute, Japan, was transformed into a distributed simulation model. Second, PWRI Model was combined with LATERAL Model : these distributed models can simulate precisely storm water runoff with surcharge and a temporal and spatial variation of runoff-water quality in combined sewer pipe systems ; the models can be employed to evaluate the efficiency of various counter-measures that are designed to reduce CSOs and installed in the sewer pipe systems. Finally, the models were applied to a real urban drainage basin, and the adaptability of the models was investigated on the basis of the comparisons of observed and simulated runoff results. As a result, the following were pointed out (1) the agreement between the observed and simulated results, at this stage, is not necessarily adequate throughout the comparisons ; (2) the simulation model can reproduce well the runoff characteristics of pollutants influenced by flow regulations ; (3) the simulation model can be used to examine the efficiency of counter-measures mitigating CSOs.

由于下水道管道系统的溢出，包括日本城市河流在内的接收水的水质逐年变得越来越糟。因此，必须及时开发可以减轻溢出的适当的反测量。为了实现这一目标，研究了一个实用的水质和雨水径流的分布式模拟模型，该模型可以精确模拟管道系统中径流水质的时间和空间变化的时间和空间变化。在这项研究中，首先是PWRI模型，这是一个笨拙的模型，这是一个笨拙的模拟模型，该模型是由公共工程研究所开发的。其次，将PWRI模型与横向模型结合在一起：这些分布式模型可以通过附加费以及组合下水道管道系统中径流 - 水质的时间和空间变化模拟雨水径流；这些模型可用于评估旨在减少CSO并安装在下水道管系统中的各种对抗测量的效率。最后，将模型应用于真正的城市排水盆地，并根据观察到的和模拟的径流结果的比较研究了模型的适应性。结果，（1）在此阶段，在整个比较过程中，观察到的结果与模拟结果之间的一致性不一定是足够的；（2）模拟模型可以很好地再现受流量法规影响的污染物的径流特征；（3）模拟模型可用于检查缓解CSO的反测量的效率。