Frehmann T, Niemann A, Ustohal P, Geiger W F
Dept. of Civil Engineering, Urban Water Management, University of Essen, Germany.
Water Sci Technol. 2002;45(3):229-37.
Four individual mathematical submodels simulating different subsystems of urban drainage were intercoupled to an integral model. The submodels (for surface runoff, flow in sewer system, wastewater treatment plant and receiving water) were calibrated on the basis of field data measured in an existing urban catchment investigation. Three different strategies for controlling the discharge in the sewer network were defined and implemented in the integral model. The impact of these control measures was quantified by representative immission state-parameters of the receiving water. The results reveal that the effect of a control measure may be ambivalent, depending on the referred component of a complex drainage system. Furthermore, it is demonstrated that the drainage system in the catchment investigation can be considerably optimised towards environmental protection and operation efficiency if an appropriate real time control on the integral scale is applied.
四个模拟城市排水不同子系统的独立数学子模型被相互耦合为一个整体模型。这些子模型（用于地表径流、下水道系统水流、污水处理厂和受纳水体）是根据在现有城市集水区调查中测量的现场数据进行校准的。在整体模型中定义并实施了三种控制下水道网络排放的不同策略。这些控制措施的影响通过受纳水体的代表性排放状态参数进行量化。结果表明，控制措施的效果可能是矛盾的，这取决于复杂排水系统的相关组成部分。此外，研究表明，如果在整体尺度上应用适当的实时控制，集水区调查中的排水系统在环境保护和运行效率方面可以得到显著优化。
