NES: Recent submissions

Now showing items 581-600 of 896

Assessment of the options for flood attenuation in Anhangabaú catchment (São Paulo, Brazil)

Leitão, J. P.; Canholi, A.; Maksimovic, C. (IWA, 2011-09)

Flooding events have been reported since 1920s in the Anhangabaú urban catchment located in the commercial central area of São Paulo (Brazil). This catchment has approximately 95% of the area occupied by buildings and roads ...
Urban drainage models for flood forecasting: 1D/1D, 1D/2D and hydrid models

Simões, N. E.; Ochoa, S.; Leitão, J. P.; Pina, R.; Sá Marques, A.; Maksimovic, C. (IWA, 2011-09)

Lead time between rainfall prediction results and flood prediction results obtained by hydraulic simulations is one of the crucial factors in the implementation of real-time flood forecasting systems. Therefore, hydraulic ...
Análise multicritério para a priorização de intervenções de reabilitação em sistemas de distribuição de água

Carriço, N.; Covas, D.; Almeida, M. C.; Alegre, H. (2011-01)

No presente artigo apresenta-se a aplicação de um método multicritério de apoio à decisão (ELECTRE TRI) para a priorização de intervenções de reabilitação em sistemas de distribuição de água, tendo em conta as dimensões ...
Prioritization of rehabilitation interventions for urban water assets using multiple criteria decision-aid

Carriço, N.; Covas, D.; Almeida, M. C.; Leitão, J. P.; Alegre, H. (IWA, 2011-09)

The aim of this paper is to compare sorting and ranking methods for prioritization of rehabilitation interventions of sewers, taking into account risk, performance and cost. For that purpose multiple criteria decision-aid ...
An integrated approach for infrastructure asset management of urban water systems

Alegre, H.; Covas, D.; Coelho, S. T.; Almeida, M. C.; Cardoso, M. A. (IWA, 2011-09)

This paper presents the integrated methodology for infrastructure asset management (IAM) developed in AWARE-P, an R&D project aimed at producing adequate and effective support tools for assisting urban water utilities in ...
Urban water infrastructure asset management -a structured approach in four Portuguese water utilities

Cardoso, M. A.; Silva, M. S.; Coelho, S. T.; Almeida, M. C.; Covas, D. (IWA, 2011-09)

Water services are a strategic sector of large social and economic relevance. Thus, it is essential that they are managed rationally and efficiently. Advanced water supply and wastewater infrastructure asset management is ...
Rehabilitation interventions in urban water supply assets using the multicriteria decision tool ELECTRE III

Carriço, N.; Covas, D.; Almeida, M. C.; Leitão, J. P.; Alegre, H. (2011-09)

The current paper briefly presents the infrastructure asset management (IAM) methodology developed in the framework of the AWARE-P project for the comparison of alternative rehabilitation solutions and applies it to a ...
Avaliação e controlo da eficiência do tratamento de águas residuais - Aplicação a sistemas de pequena dimensão

Ribeiro, R. (2011-07)

Assiste-se, actualmente, a uma exigência crescente nos requisitos de qualidade das descargas de efluentes urbanos no meio hídrico receptor e, em paralelo, a uma maior pressão no sentido do aumento da eficiência na operação ...
Preliminary results of "PASt21" - the Portuguese iniciative for performance assessment of water and wastewater treatment plants

Silva, C.; Ramalho, P.; Quadros, S.; Vieira, P.; Alegre, H.; Rosa, M. J. (2011-03)

Performance assessment of water supply and wastewater services is nowadays a major issue. Over the past six years, LNEC has been developing performance assessment systems (PASs) for water treatment plants (WTPs) and wastewater ...
Gestão patrimonial de infra-estruturas em sistemas de água. Uma metodologia estruturada

Alegre, H.; Almeida, M. C.; Covas, D.; Cardoso, M. A.; Coelho, S. T. (APESB, 2010-12)

A gestão patrimonial de infra-estruturas (GPI) constitui, cada vez mais, uma actividade determinante para a garantia do cumprimento dos objectivos de gestão dos sistemas urbanos de água. Por um lado, as infra-estruturas ...
Medição, em tempo real, da toxicidade da água tratada da Estação de Tratamento de Água de Alcantarilha

Coelho, R.; Sancho, R.; Menaia, J.; Bentes, L.; Fava, C.; Calvinho, A.; Lucas, H. (APRH, 2010-03-23)

A Águas do Algarve, SA. tem investido, ao longo dos anos, em projectos de Investigação e Desenvolvimento dedicados à água, tanto na preservação das águas de origem, como na optimização dos processos de tratamento de águas ...
The Influence of Temperature on Full-Scale Inactivation of Aerobic Endospores by Ozone

entidade LNEC (IWA, 2010-09)

The surrogates (e.g., Escherichia coli) commonly used to monitor drinking water treatment are useless indicators of ozonation efficiency, as they are too sensitive to oxidants. Therefore, alternative indicators have been ...
Sensitivity analysis of surface runoff generation in urban flood forecasting

Simões, N. E.; Leitão, J. P.; Maksimovic, C.; Sá Marques, A.; Pina, R. (IWA, 2010)

Reliable flood forecasting requires hydraulic models capable to estimate pluvial flooding fast enough in order to enable successful operational responses. Increased computational speed can be achieved by using a 1D/1D ...
The urban flooding case study of Ribeira da Agualva (Azores, Portugal)

Leandro, J.; Leitão, J. P. (2010-06)

The village of Agualva, located in Terceira Island, Azores, Portugal, experienced severe flooding on the early morning of 15th of December 2010. The flooding was caused by a short-duration and extreme intensity rainfall ...
Urban pluvial flooding in Jakarta: applying state-of-the-art technology in a data scarce environment

Hurford, A.; Maksimovic, C.; Leitão, J. P. (IWA, 2010-10)

Available data relating to major pluvial flooding events in Jakarta, Indonesia were used to investigate the suitability of two different levels of sophistication in urban modelling tools for modelling these events. InfoWorks ...
Metodologias de Análise de Consumos para a Gestão Eficiente de Sistemas de Distribuição de Água

Loureiro, D. (2010-09)

Este trabalho de investigação teve como objectivo principal propor, aplicar e validar uma metodologia que permitisse transformar dados de consumo urbano de água, obtidos a partir de sistemas de telemetria, em informação ...
Estudo económico da aplicação de componentes SUDS a um caso de estudo

Nascimento, C.; Carvalho, R.; David, L. M. (APESB, 2010-10)

Os Sistemas Urbanos de Drenagem Sustentáveis (SUDS) consistem na aplicação de um conjunto diversificado de técnicas no sentido de diminuir o caudal de ponta por aumento da retenção e infiltração. Em novas urbanizações, ...
Real-time forecasting urban drainage models: full or simplified networks?

Leitão, J. P.; Simões, N. E.; Maksimovic, C.; Santos Ferreira, F.; Prodanovic, D.; Matos, J. S.; Sá Marques, A. (IWA, 2010-10)

Lead time between rainfall prediction results and flood prediction results obtained by hydraulic simulations is one of the crucial factors in the implementation of real-time flood forecasting systems. Therefore, hydraulic ...
A performance indicators system for urban wastewater treatment plants

Quadros, S.; Rosa, M. J.; Alegre, H.; Silva, C. (IWA, 2010-10)

A performance assessment system (PAS) is an important instrument to provide a costeffective and sustainable management of wastewater treatment plants (WWTPs). Despite the fact that many PASs have been developed in recent ...
Is strategic asset management applicable to small and medium utilities?

Alegre, H. (IWA, 2010-10)

Urban water infrastructures provide essential services to modern societies and represent a major portion of the value of municipal physical assets. Managing these assets rationally is therefore fundamental for the ...

Now showing items 581-600 of 896

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