Searched for: subject:"contaminants"
(1 - 20 of 34)

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Kleinherenbrink, M. (author), Smith, Walter H.F. (author), Naeije, M.C. (author), Slobbe, D.C. (author), Hoogeboom, P. (author)
We investigated the sensitivity of fully focused SAR (FF-SAR) processing of Cryosat-2 altimeter data to Earth rotation. Earth’s rotation causes scatterers at varying cross-track locations to have a different relative velocity with respect to the satellite. This second-order effect of Earth rotation on the phase is currently not corrected for...
journal article 2020
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Zietzschmann, F.E. (author), Dittmar, Stefan (author), Splettstößer, Lydia (author), Hunsicker, Jonas (author), Dittmann, Daniel (author), Meinel, Felix (author), Rößler, Annette (author), Metzger, Steffen (author), Jekel, Martin (author), Ruhl, Aki Sebastian (author)
Powdered activated carbon (PAC) for organic micro-pollutant (OMP) removal can be applied effectively on wastewater treatment plant (WWTP) effluents by using re-circulation schemes, accumulating the PAC in the system. This technique is complex because several factors are unknown: (i) the PAC concentration in the system, (ii) specific and...
journal article 2019
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Cavalli, A. (author), Bernardini, Roberta (author), Del Carlo, Tommaso (author), Purushothaman Vellayani, A. (author)
Integrated biomass gasifier solid oxide fuel cell systems are an alternative to fossil-fuel-based combined heat and power generators. However, biosyngas contaminants represent a bottleneck for small-scale systems. In this work, we present the results of experiments on the effects of H<sub>2</sub>S, HCl, and acetic acid as model primary tar on...
journal article 2019
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van Bel, Nikki (author), Hornstra, Luc M. (author), van der Veen, Anita (author), Medema, G.J. (author)
To ensure delivery of microbiologically safe drinking water, the physical integrity of the distribution system is an important control measure. During repair works or an incident the drinking water pipe is open and microbiologically contaminated water or soil may enter. Before taking the pipe back into service it must be cleaned. The efficacy of...
journal article 2019
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Kumar, P. (author), Luo, P. (author), Gaspar, Francisco J. (author), Oosterlee, C.W. (author)
A multilevel Monte Carlo (MLMC) method for Uncertainty Quantification (UQ) of advection-dominated contaminant transport in a coupled Darcy–Stokes flow system is described. In particular, we focus on high-dimensional epistemic uncertainty due to an unknown permeability field in the Darcy domain that is modelled as a lognormal random field....
journal article 2018
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Hartmann, J. (author), van der Aa, Monique (author), Wuijts, Susanne (author), de Roda Husman, Ana Maria (author), van der Hoek, J.P. (author)
The presence of emerging contaminants in the aquatic environment may affect human health via exposure to drinking water. And, even if some of these emerging contaminants are not a threat to human health, their presence might still influence the public perception of drinking water quality. Over the last decades, much research has been done on...
journal article 2018
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Marques Arsenio, A. (author), Salim, Iana Câmara (author), Hu, Mingming (author), Matsinhe, Nelson Pedro (author), Scheidegger, Ruth (author), Rietveld, L.C. (author)
In Maputo, the capital of Mozambique, nitrate concentrations above 250 mg L??1 in groundwater have been reported. This happens due to the widespread use of latrines and septic tanks that allow for constant infiltration of its content into the soil and eventually to groundwater sources, a situation that is widespread in the Global South and...
journal article 2018
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Cavalli, A. (author), Kunze, M. (author), Purushothaman Vellayani, A. (author)
Integrated Biomass Gasifier Solid Oxide Fuel Cell Systems represent an alternative to fossil fuel based power plants, and direct internal tar reforming allows achieving high efficiency and decreasing system complexity. However, at present, tar is removed or reformed externally since there is not yet general agreement on the fate of these...
journal article 2018
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van Breukelen, B.M. (author), Thouement, H.A.A. (author), Stack, Philip E. (author), Vanderford, Mindy (author), Philp, Paul (author), Kuder, Tomasz (author)
Reactive transport modeling of multi-element, compound-specific isotope analysis (CSIA) data has great potential to quantify sequential microbial reductive dechlorination (SRD) and alternative pathways such as oxidation, in support of remediation of chlorinated solvents in groundwater. As a key step towards this goal, a model was developed...
journal article 2017
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Movalli, Paola (author), Bode, P. (author), Dekker, René (author), Fornasari, Lorenzo (author), van der Mije, Steven (author), Yosef, Reuven (author)
This study examines the potential to use instrumental neutron activation analysis (INAA) to explore temporal and geographical variation in exposure to heavy metals and other selected elements in common kestrel Falco tinnunculus using feathers from a natural history collection. The study gathered samples of two breast feathers from each of 16...
journal article 2017
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Fischer, A. (author), ter Laak, T (author), Bronders, J. (author), Desmet, N. (author), Christoffels, E. (author), van Wezel, A (author), van der Hoek, J.P. (author)
Water authorities and drinking water companies are challenged with the question if, where and how to abate contaminants of emerging concern in the urban water cycle. The most effective strategy under given conditions is often unclear to these stakeholders as it requires insight into several aspects of the contaminants such as sources, properties...
journal article 2017
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van der Walle, P (author), Kramer, E. (author), van der Donck, J.C.J. (author), Mulckhuyse, W (author), Nijsten, L. (author), Bernal Arango, F.A. (author), de Jong, A. (author), van Zeijl, E. (author), Spruit, H. E.T. (author), van den Berg, J.H. (author), Nanda, G. (author), van Langen-Suurling, A.K. (author), Alkemade, P.F.A. (author), Pereira, S.F. (author), Maas, D.J. (author)
Particle defects are important contributors to yield loss in semi-conductor manufacturing. Particles need to be detected and characterized in order to determine and eliminate their root cause. We have conceived a process flow for advanced defect classification (ADC) that distinguishes three consecutive steps; detection, review and...
conference paper 2017
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Murias Gomes Lage, J. (author)
doctoral thesis 2016
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Robaey, Z.H. (author)
Genetically modified organisms are a technology now used with increasing frequency in agriculture. Genetically modified seeds have the special characteristic of being living artefacts that can reproduce and spread; thus it is difficult to control where they end up. In addition, genetically modified seeds may also bring about uncertainties for...
journal article 2016
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Lotfi, S. (author), Di Maio, F. (author), Xia, H. (author), Serranti, S. (author), Palmieri, R. (author), Bonifazi, G. (author)
One of the main challenging problems associated with the use of Recycled Aggregates (RA) is the level of mixed contaminants. For utilizing RA in high-grade applications, it is essential to monitor and minimise the content of the pollutants. To this extent the C2CA concrete recycling process investigates a combination of smart demolition,...
conference paper 2015
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Kiulia, Nicholas M. (author), Hofstra, Nynke (author), Vermeulen, Lucie C. (author), Obara, Maureen A. (author), Medema, G.J. (author), Rose, Joan B. (author)
Group A rotaviruses (RV) are the major cause of acute gastroenteritis in infants and young children globally. Waterborne transmission of RV and the presence of RV in water sources are of major public health importance. In this paper, we present the Global Waterborne Pathogen model for RV (GloWPa-Rota model) to estimate the global distribution...
journal article 2015
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Norrman, J. (author), Volchko, Y. (author), Maring, L (author), Hooimeijer, F.L. (author), Broekx, S. (author), Garcao, R. (author), Beames, A. (author), Kain, J.H. (author), Ivarsson, M. (author), Touchant, K. (author)
Land take as a result of urbanization is one of the major soil threats in Europe. One of the key measures to prevent further urban sprawl and additional land take, is redevelopment of urban brownfields: underused urban areas with, in many cases, soil and groundwater pollution. The latter issue can be a bottleneck for redevelopment of brownfields...
report 2015
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Ugur, D. (author)
In accordance with Gordon Moore’s law, the number of transistors that can be placed on an integrated chip of a certain size is increasing exponentially. This can only be realized with an increase in the spatial resolution of the lithography systems, allowing smaller feature sizes to be printed. Today, Extreme ultraviolet lithography (EUVL),...
doctoral thesis 2012
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Yenigül, N.B. (author), Hensbergen, A.T. (author), Elfeki, A.M.M. (author), Dekking, F.M. (author)
Contaminant leaks released from landfills are a threat to groundwater quality. The groundwater monitoring systems installed in the vicinity of such facilities are vital. In this study the detection probability of a contaminant plume released from a landfill has been investigated by means of both a simulation and an analytical model for both...
journal article 2011
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Yangali Quintanilla, V. (author)
The book contains a description of the presence of micropollutants (medicines, hormones, pesticides) in surface water and shows that conventional water treatment poorly removes micropollutants. Nanofiltration and reverse osmosis are more appropriate technologies; however removals can vary depending on the properties of compounds and types of...
doctoral thesis 2010
Searched for: subject:"contaminants"
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