Analysis and Research on the Rainstorm Intensity Formula Establishment Algorithm in the Urban Drainage System Design

2016 ◽  
Vol 13 (7) ◽  
pp. 4064-4073
Author(s):  
Mao Libo ◽  
Tao Tao
Keyword(s):  
System Design ◽  
Drainage System ◽  
Urban Drainage ◽  
Urban Drainage System

scholarly journals Uncertainty Analysis in the Evaluation of Extreme Rainfall Trends and Its Implications on Urban Drainage System Design

Water ◽  
2015 ◽  
Vol 7 (12) ◽  
pp. 6931-6945 ◽  
Author(s):  
Vincenza Notaro ◽  
Lorena Liuzzo ◽  
Gabriele Freni ◽  
Goffredo La Loggia
Keyword(s):  
Uncertainty Analysis ◽  
System Design ◽  
Drainage System ◽  
Extreme Rainfall ◽  
Urban Drainage ◽  
Urban Drainage System ◽  
Rainfall Trends

scholarly journals Study on Copula-based Coordination of Urban Drainage system and Sewage system Design

2021 ◽  
Vol 233 ◽  
pp. 03038
Author(s):  
Zhong Yixuan ◽  
Liao Xiaolong ◽  
Yi Ling ◽  
Wu Leping
Keyword(s):  
System Design ◽  
Return Period ◽  
Drainage System ◽  
Urban Drainage ◽  
Urban Drainage System ◽  
Practical Solution ◽  
Sewage System ◽  
Water Logging

The urban drainage system is co-regulated by various governmental departments, who adopt different standards in designing the system, an attempt not conducive to the prevention of water logging. This study took Zhongshan and Zhuhai as the subjects, proposed the Copula-based design of a drainage system, and calculated the most practical solution to drainage, waterlogging and rainfall based on Kendall’s Return Period, providing references for construction of such projects.

Integrated modelling: comparison of state variables, processes and parameters in sewer and wastewater treatment plant models

1997 ◽  
Vol 36 (5) ◽  
pp. 373-380 ◽  
Author(s):  
C. Fronteau ◽  
W. Bauwens ◽  
P.A. Vanrolleghem
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Drainage System ◽  
Integrated Modelling ◽  
Urban Drainage ◽  
State Variables ◽  
Sewer System ◽  
Wastewater Treatment Process ◽  
Urban Drainage System

All the parts of an urban drainage system, i.e. the sewer system, the wastewater treatment plant (WWTP) and the river, should be integrated into one single model to assess the performance of the overall system and for the development of design and control strategies assisting in its sustainable and cost effective management. Existing models for the individual components of the system have to be merged in order to develop the integrated tool. One of the problems arising from this methodology is the incompatibility of state variables, processes and parameters used in the different modelling approaches. Optimisation of an urban drainage system, and of the wastewater treatment process in particular, requires a good knowledge of the wastewater composition. As important transformations take place between the emission from the household and the arrival at the treatment facility, sewer models should include these transformations in the sewer system. At present, however, research is still needed in order to increase our knowledge of these in-sewer processes. A comparison of the state variables, processes and parameters has been carried out in both sewer models (SMs) and activated sludge models (ASMs). An ASM approach is used for the description of reactions in sewer models. However, a difference is found in the expression for organic material (expressed in terms of BOD) and heterotrophic biomass is absent as a state variable, resulting in differences in processes and parameters. Reconciliation of both the models seems worthwhile and a preliminary solution is suggested in this paper.

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