António Sampaio Duarte

Prof. António Sampaio Duarte

University of Minho, School of Engineering, Civil Engineering Dept.
orcid

Research Focus & Metrics

Academic Career Length

29Years (1998-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 December 2009 in Sustainability
Verified
Journal Article
Open access
PDF file
António Sampaio DuarteAntónio Sampaio Duarte
António Sampaio Duarte
SCSílvia J. A. Cardoso
Sílvia J. A. Cardoso
AAAntonio Alcada
Antonio Alcada
The impact of arsenic on human health has led its drinking water MCL to be drastically reduced from 50 to 10 ppb. Consequently, arsenic levels in many water supply sources have become critical. This has resulted in technical and operational impacts on many drinking water treatment plants that have required onerous upgrading to meet the new standard. This becomes a very sensitive issue in the context of water scarcity and climate change, given the expected increasing demand on groundwater sources. This work presents a case study that describes the development of low-cost techniques for efficient arsenic control in drinking water. The results obtained at the Manteigas WTP (Portugal) demonstrate the successful implementation of an effective and flexible process of reactive filtration using iron oxide. At real-scale, very high removal efficiencies of over 95% were obtained.

1 August 2013 in Science of The Total Environment
Verified
Journal Article
Closed access
Cristina MatosCristina Matos
Cristina Matos
Carlos Afonso TeixeiraCarlos Afonso Teixeira
Carlos Afonso Teixeira
António Sampaio DuarteAntónio Sampaio Duarte
António Sampaio Duarte
IBIsabel Bentes
Isabel Bentes

1 March 2012
Verified
Journal Article
Closed access
EFEduardo Ériko Tenório De França
Eduardo Ériko Tenório De França
FFFrancimar Ferrari
Francimar Ferrari
PFPatrícia Fernandes
Patrícia Fernandes
RCRenata Cavalcanti
Renata Cavalcanti
António Sampaio DuarteAntónio Sampaio Duarte
António Sampaio Duarte
MDMarta Cristina Paulete Damasceno
Marta Cristina Paulete Damasceno

16 April 2024 in Materials
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Journal Article
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AMAna Paula de Araújo Mattoso
Ana Paula de Araújo Mattoso
Sandra CunhaSandra Cunha
Sandra Cunha
Jose AguiarJose Aguiar
Jose Aguiar
António Sampaio DuarteAntónio Sampaio Duarte
António Sampaio Duarte
HLHelena Lemos
Helena Lemos
To address the growing global water demand, it is imperative to implement advanced treatment systems and sustainable alternatives for managing the large amount of waste generated during the water purification process, known as water treatment sludge (WTS). Worldwide, researchers and companies are exploring alternatives and methods for the valorization of WTS as a raw material in other processes. It is urgent that all productive sectors, which contribute significantly to greenhouse gas emissions, adopt this management principle to ensure more sustainable production, contributing to the global goal of climate neutrality. Notably, in civil construction, incorporating WTS as a supplementary cementitious material (SCM) shows great promise, considering that the industrial waste currently used for this purpose is increasingly restricted. The use of WTS as a raw material in the cement industry not only contributes to the reduction of the carbon footprint, but also reduces the high waste load still disposed of in landfills. The emerging applications for WTP sludge are reviewed, with emphasis on its valorization in the civil construction as an SCM. The main characteristics of this waste and their impacts on the environment are also addressed.

1 October 2011 in Engineering Failure Analysis
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Journal Article
Closed access
IBIsabel Bentes
Isabel Bentes
LAL. Afonso
L. Afonso
Humberto VarumHumberto Varum
Humberto Varum
JPJorge Tiago Pinto
Jorge Tiago Pinto
JVJoão Varajão
João Varajão
JAJ. Agarwal
J. Agarwal

26 July 2017
Verified
Book Chapter
Open access
PDF file
António Sampaio DuarteAntónio Sampaio Duarte
António Sampaio Duarte
MAMaria Teresa Pessoa Amorim
Maria Teresa Pessoa Amorim
The increasing of emerging micropollutants presence in drinking water sources has brought new challenges to existing water treatment systems (WTS), highlighting the need of innovative and low-cost technological solutions. Recent advances in nanotechnology enable highly efficient and multifunctional processes, providing sustainable alternatives to current water treatment practices. This chapter presents the results of several pilot-scale studies developed to assess the effects of TiO nanoparticles on antibiotic removal efficiency, using different low-cost photocatalytic reactors. The characterization of its photo-oxidation kinetics also performed considering different test scenarios in order to assess the effects of the major abiotic parameters on oxytetracycline (OTC) removal efficiency, which achieved the maximum values of 96% and 98% using the photocatalysis with TiO and the photocatalytic filtration, respectively. It must be highlighted the surprising regeneration ability showed by the photocatalytic porous medium, developed at a lab-scale, which can completely recover its oxidative properties after few hours of simple sun exposure.