Urban Flood Estimation and Evaluation of the Performance of an Urban Drainage System in a Semi-Arid Urban Area Using SWMM

2018 ◽  
Vol 90 (12) ◽  
pp. 2075-2082 ◽  
Author(s):  
Ali Moafi Rabori ◽  
Reza Ghazavi
Keyword(s):  
Urban Area ◽  
Drainage System ◽  
Urban Drainage ◽  
Urban Flood ◽  
Urban Drainage System ◽  
Flood Estimation ◽  
Semi Arid

scholarly journals Índice de satisfação de drenagem urbana na zona urbana de Pau dos Ferros/RN

2021 ◽  
Vol 14 (1) ◽  
pp. 229
Author(s):  
Talita Tássia da Costa ◽  
Joel Medeiros Bezerra ◽  
Bruna Monallize Duarte Moura ◽  
Alana Ticiane Alves do Rêgo ◽  
Rafael Silva de Souza ◽  
...  
Keyword(s):  
Urban Area ◽  
Drainage System ◽  
Urban Drainage ◽  
Urban Drainage System ◽  
Social Transformations ◽  
Sanitation Services ◽  
Satisfaction Index ◽  
Basic Sanitation ◽  
Medium Level ◽  
High Level

A drenagem urbana se constitui uma das quatro vertentes do saneamento básico, sendo importante no destino adequado das águas pluviais de maneira que não venha a causar impactos socioambientais. Diante desta realidade, ferramentas para a análise da percepção de usuários dos serviços do saneamento básico tornaram-se imprescindíveis para garantia de uma melhor eficiência do sistema, como também promoção da qualidade de vida da população. Nessa perspectiva, pretende-se analisar o índice de satisfação da drenagem urbana prestados à população da zona urbana de Pau dos Ferros/RN, e com isso proporcionar a quantificação da eficiência deste serviço, como também sugerir ações direcionadas nas áreas mais afetadas. Dessa forma, a metodologia empregada consistiu na avaliação da satisfação do sistema de drenagem urbana a partir de percepção dos residentes de 17 bairros da zona urbana do município em apreço, tal como mapeamento da ocorrência dos índices obtidos, relacionando a feições topográficas, sendo que o índice de satisfação foi calculado de acordo com o grau de satisfação, insatisfação e o número de respostas dos questionários aplicados, em que o intervalo de variação desse índice varia entre -1 a 1, com maior satisfação do usuário próximo a 1. Assim, verificou-se que o índice proporcionou uma satisfação de nível baixo em 35,3 % dos bairros analisados, 52,9 % como nível médio e 11,8 % como nível alto. Pode-se considerar que o índice de satisfação desse serviço no município, apresentou-se majoritariamente deficitário, não se limitando apenas a aspectos de infraestrutura, mas também a inexistência de manutenção deste sistema.  Satisfaction index of the urban drainage system of the urban area of Pau dos Ferros/RN A B S T R A C TDue to a scenario marked by economic, political and social transformations, several adverse impacts were promoted on public health and the environment. Facing this reality, tools for analyzing the perception of users of basic sanitation services have become essential to guarantee a better efficiency of the system, as well as to promote the population's quality of life. In this perspective, this work intended to analyze the satisfaction index of urban drainage provided to the population of the urban area of Pau dos Ferros/RN, and thereby provide the quantification of the efficiency of this service, as well as suggesting actions targeting at the most affected areas. Therefore, the methodology employed was focused in assessing the satisfaction of the urban drainage system from the perception of residents of 17 neighborhoods in the urban area of the city under consideration, such as mapping the occurrence of the indexes obtained, relating to topographic features. It was found that the satisfaction index was classified as “low level” in 35.3% of the neighborhoods analyzed, 52.9% as a “medium level” and 11.8% as a “high level”. It can be considered that the satisfaction index of this service in the municipality, presented mostly deficit, not limited only to aspects of infrastructure, but also the lack of maintenance of the system.Keywords: environmental perception, rainwater management, urban environmental quality, basic sanitation.

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.

Energy optimization of the urban drainage system by integrated real-time control during wet and dry weather conditions

2018 ◽  
Vol 15 (4) ◽  
pp. 362-370 ◽  
Author(s):  
Stefan Kroll ◽  
Alessio Fenu ◽  
Tom Wambecq ◽  
Marjoleine Weemaes ◽  
Jan Van Impe ◽  
...  
Keyword(s):  
Real Time ◽  
Energy Optimization ◽  
Drainage System ◽  
Weather Conditions ◽  
Urban Drainage ◽  
Real Time Control ◽  
Urban Drainage System ◽  
Time Control
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