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DHA/NES - Comunicações a congressos e artigos de revista: Recent submissions

Now showing items 281-300 of 528

A service-oriented approach to assessing the Infrastructure Value Index

Amaral, R.; Alegre, H.; Matos, J. S. (IWA, 2015-11-19)

Many national and regional administrations are currently facing challenges to ensure long-term sustainability of urban water services, as infrastructures continue to accumulate alarming levels of deferred maintenance and ...
How to communicate IAM in water losses and energy management – the experience of a collaborative project

Ribeiro, R.; Alegre, H.; Loureiro, D.; Mamade, A. (IWA, 2015-11-19)

Water utilities have to deal with different challenges including ageing infrastructures, climate change and increased societal expectations. The ISO 50 000 and 55 000 standards are effective tools for implementing procedures ...
Innovation results of IAM planning in urban water services

Cardoso, M. A.; Poças, A.; Silva, M. S.; Ribeiro, R.; Almeida, M. C.; Brito, R.; Coelho, S. T.; Alegre, H. (IWA, 2015-11-19)

The requirement to provide continuously the urban water services while infrastructures are ageing, impose the need for increasingly sustainable infrastructure asset management (IAM). To achieve and maintain the adequate ...
Assessing human resources renovation needs in water utilities

Feliciano, J.; Almeida, R.; Santos, A.; Ramalho, P.; Ganhão, A.; Covas, D.; Alegre, H. (IWA, 2015-11-19)

Human resources are one of the most important assets of water utilities being responsible for assuring systems’ management and playing an important role in the tacit forms of the organisational knowledge. In organisations ...
Finding new trends through data analytics in infrastructure asset management – rehabilitation investments versus operational management

Feliciano, J.; Almeida, R.; Santos, A.; Ramalho, P.; Ganhão, A.; Covas, D.; Alegre, H. (IWA, 2015-11-19)

Water utilities sustainable management is a leading challenge in which data and information analysis play a key role. Nowadays data generated in information systems is too much, evolves too fast and is too diverse, requiring ...
Avaliação da qualidade do serviço prestado pelas entidades gestoras aos utilizadores dos serviços de águas

Freixial, P.; Alegre, H.; Cardoso, M. A.; Rodrigues, R.; Monte, M. (APDA, 2015-12-04)

No âmbito da avaliação anual da qualidade do serviço prestado aos utilizadores, a ERSAR avalia, desde 2011, o nível de conhecimento que as entidades gestoras detêm relativamente às infraestruturas dos serviços de abastecimento ...
Novos desafios para a gestão patrimonial de infraestruturas

Cardoso, M. A.; Silva, M. S.; Brito, R.; Poças, A.; Almeida, M. C.; David, L. M.; Ribeiro, R.; Alegre, H. (APDA, 2015-12-04)

Com os sistemas urbanos de água construídos e operacionais torna-se essencial que as Entidades Gestoras (EG) destes serviços apostem numa gestão eficiente das infraestruturas existentes e dos investimentos necessários, ...
Sewer asset management planning – implementation of a structured approach in wastewater utilities

Cardoso, M. A.; Almeida, M. C.; Silva, M. S. (Taylor & Francis, 2015-09-15)

Wastewater services are fundamental for the protection of public health and environment, population well-being and sustainable development of communities. The value of urban water assets represents a major part of all ...
How big data can enhance multi-utilities’ management?

Feliciano, J.; Almeida, R.; Santos, A.; Ganhão, A.; Coelho, J.; Covas, D.; Alegre, H. (IWA WWC, 2014-09-21)

Water utilities sustainable management is nowadays a leading challenge in which data management and information analysis play a key role. Data generated is too many, moves too fast and is too diverse. As other cases of ...
Origem e potencial de mitigação da água com coloração amarela acastanhada na torneira do consumidor

Poças, A.; Rebola, N.; Cordeiro, B.; Rodrigues, S.; Benoliel, M. J.; Rietveld, L.; Vreeburg, J.; Menaia, J. (2013-12)

O aparecimento da água amarela acastanhada tem origem nos sedimentos que se acumulam nos sistemas de distribuição e que, por alterações na velocidade ou no sentido do escoamento, podem ser ressuspendidos e chegar à torneira ...
Assessment of the flow predictions from a large urban drainage model forced by distinct spatial resolution weather forecasts

Mota, T.; David, L. M.; Rocha , A .; Jesus, G.; Oliveira, A. (2014-09-07)

This paper assesses calibration and verification results of the Alcântara catchment model (Lisbon) and of the flow model forecasts forced by two different resolutions in Weather Forecasting: the 9 km WRF model from the ...
Real-time monitoring and forecasting system for early warning of recreational waters contamination

David, L. M.; Oliveira, A.; Rodrigues, M.; Fortunato, A. B.; Rogeiro, J.; Antunes, G. J.; Mota, T.; Costa, J.; Menaia, J.; Póvoa, P.; David, C.; Ferreira, F.; Matos, J. S.; Matos, R. S. (2014-09-07)

A new WebGIS platform for urban drainage management was developed based on the integration of catchment-to-receiving waters modelling and on real-time on-line monitoring networks. The platform is devoted to the surveillance ...
Discolouration loose deposits: balancing views and practices

Poças, A.; Menaia, J.; Vreeburg, J.; Rietveld, L.; Rodrigues, S.; Rebola, N.; Benoliel, M. J. (IWA WWC, 2014-09)

Tap water discolouration incidents may occur due to resuspension of loose deposits (LD) that accumulate in drinking water distribution systems (DWDS), due to velocity increases or rapid changes. While lowering the consumers’ ...
Impact of slurry management strategies on potential leaching of nutrients and pathogens in a sandy soil amended withc attle slurry

Fangueiro, D.; Surgy, S.; Napier, V.; Menaia, J.; Vasconcelos, E.; Coutinho, J. (Elsevier, 2014)

For farmers, management of cattle slurry (CS) is now a priority, in order to improve the fertilizer value of the slurry and simultaneously minimize its environmental impact. Several slurry pre-treatments and soil application ...
iGPI and PGPI: national-scale cooperative R&D rollout of IAM planning methods and tools

Coelho, S. T.; Alegre, H.; Leitão, J. P.; Cardoso, M. A.; Silva, M. S.; Ramalho, P.; Ribeiro, R.; Covas, D.; Vitorino, D.; Almeida, M. C.; Feliciano, J.; Almeida, R. (IWA WWC, 2014-09-22)

The National Iniciative for Infrastructure Asset Management (iGPI) led by LNEC, IST and Addition, and its twin initiative PGPI, led by AGS, were collaborative projects through wich a total of 30 Portuguese water utilities ...
From the water safety plan to the water cycle safety plan - EPAL´s experience

Luis, A.; Martins, B.; Martins, A. V.; Azevedo, L.; Aprisco, P.; Rodrigues, A.; Almeida, M. C.; Vieira, P.; Cardoso, M. A. (IWA WWC, 2014-09-22)

With its participation in PREPARED - Enabling Change, EPAL aims to demonstrate the feasibility of the innovative Water Cycle Safety Plan (WCSP) framework approach to climate change related risk management. The demonstration ...
Removal of microcystins by PAC/UF

Campinas, M.; Rosa, M. J. (Elsevier, 2010)

The removal of microcystins (MC) by powdered activated carbon adsorption/ultraﬁltration (PAC/UF) was investigated, focusing on PAC dose and addition mode, MC initial concentration (expressed as MC-LReq) and on the impact ...
Evaluation of cyanobacterial cells removal and lysis by ultraﬁltration

Campinas, M.; Rosa, M. J. (Elsevier, 2010)

The aim of this study was to evaluate the ultraﬁltration (UF) performance for removing Microcystis aeruginosa cells under different growthages (1, 2, 3 and 4 months old). Special attention was given to cell damaging and ...
The ionic strength effect on microcystin and natural organic matter surrogate adsorption onto PAC

Campinas, M.; Rosa, M. J. (Elsevier, 2006)

This work aims to contribute to a better understanding of the ionic strength effect on microcystin and natural organic matter (NOM) surrogate adsorption by analyzing the importance of adsorbate molecular size, and surface ...
Assessing PAC contribution to the NOM fouling control in PAC/UF systems

Campinas, M.; Rosa, M. J. (Elsevier, 2010)

This paper investigates the powdered actuivated carbon (PAC) contribution to the fouling control by natural organic maitter (NON) in PAC/UF hybrid process, as well as the foulant behaviour of the PAC itself. Solutions of ...

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