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Slinger, J (author)Water renewal and flushing in small, intermittently open or closed estuaries is receiving increasing attention particularly in light of the climate change induced alterations in run-off, wave and sediment transport conditions along coasts. The challenges of predicting the stratification-circulation state and the balance between tidal or...journal article 2024
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Glijnis, Erik (author)Hydropower plants have proven to generate electricity reliably and predictably, store water to meet water demands during dry periods, improve navigability and reduce flood risk. The reservoirs of these hydropower plants face ongoing sedimentation, negatively effecting the electricity generation, water storage volume, navigability and flood risk....master thesis 2022
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Klaassens, Vincent (author)Due to the energy transition, an increasing number of oil pipelines will be decommissioned in the foreseeable future. As a part of the decommissioning process, the oil needs to be flushed from the pipelines. Some models to predict the required water velocity to flush oil from pipelines are available, but these are limited in accuracy, and data...master thesis 2022
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Hooimeijer, F.L. (author), Yoshida, Y. (author), Bortolotti, A. (author), Iuorio, Luca (author)Spatial design integrates social, cultural, economic, and political perspectives with natural site conditions and man-made construction to plan for sustainable urban development. The current flood-risk-related challenges induced by climate change place pressure on designing cities in which both natural and man-made conditions can be imbalanced....book chapter 2022
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Groen, Gijs-Bart (author)Laparoscopy is a type of minimally invasive surgery in which instruments with long, slender shafts between handle and end effector are inserted through small incisions in the abdominal wall. A laparoscopic aspirator-irrigator (LAI) has a hollow shaft used to evacuate undesirable substances using a vacuum pressure, rinse tissue using a stream of...master thesis 2021
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Kusumawardhana, Agung (author), Zlatanovic, L. (author), Bosch, Arne (author), van der Hoek, J.P. (author)The aim of this study was to assess the health risks that may arise from the implementation of greywater reuse and rainwater harvesting for household use, especially for toilet flushing. In addition, the risk of cross connections between these systems and the drinking water system was considered. Quantitative microbial risk assessment (QMRA) is...journal article 2021
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Montes, Carlos (author), Ortiz, Hachly (author), Vanegas, Sergio (author), Kapelan, Z. (author), Berardi, Luigi (author), Saldarriaga, Juan (author)This paper presents a novel model for predicting the sediment transport rate during flushing operation in sewers. The model was developed using the Evolutionary Polynomial Regression Multi-Objective Genetic Algorithm (EPR-MOGA) methodology applied to new experimental data collected. Using the new model, a series of design charts were...journal article 2021
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Kramer, F.C. (author), Shang, R. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)Using ceramic nanofiltration membranes for treatment of municipal sewage is upcoming. However, the knowledge on fouling control methods for this application are very limited. The most commonly used fouling control method, chemical cleaning, has disadvantages. Chemical cleaning negatively impacts (i) the glass seal layer of tubular ceramic...journal article 2020
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Kwakman, Koen (author)Since ramjet propulsion eliminates the need for oxidizers, it provides an alternative to classic rocket engines for missiles and projectiles. However, to capture free-stream air, ramjet engines require large supersonic air intakes, which can be an operational nuisance. A possible alternative is to make the supersonic intakes flush with the...master thesis 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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Aydin, B.E. (author), Hagedooren, Hugo (author), Rutten, M.M. (author), Delsman, Joost (author), Essink, Gualbert H.P.Oude (author), van de Giesen, N.C. (author), Abraham, E. (author)We present a systematic approach for salinity sensor placement in a polder network, where the objective is to estimate the unmeasured salinity levels in the main polder channels. We formulate this problem as optimization of the estimated salinity levels using root mean square error (RMSE) as the "goodness of fit" measure. Starting from a...journal article 2019
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Fajar Muhammad Rahman, F. (author)The new concept of sewer mining which utilizes the ceramic nanofiltration (C-NF) membranes offers a compact solution for water and other resources recovery. However, since it has very limited pre-treatment process, membrane fouling is a common problem due to the direct contact between the membrane and sewage water. Sewage water contains a lot of...master thesis 2018
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Aydin, B.E. (author), Rutten, M.M. (author), Abraham, E. (author)Surface water salinization in deltaic areas due to saline groundwater exfiltration is an important issue. Fresh water diverted from the rivers is used for flushing the canals and the ditches in coastal areas to remove the low quality saline surface water mixed with saline groundwater. Worldwide, deltaic areas are under stress due to climate...conference paper 2018
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Hofman-Caris, R (author), Bertelkamp, Cheryl (author), de Waal, Luuk (author), van den Brand, Tessa (author), van der Aa, René (author), van der Hoek, J.P. (author)Often rainwater harvesting is considered as an important contribution to a more sustainable society. Rainwater is assumed to be clean water, requiring only limited treatment, and it is thought that there is sufficient rainwater available to provide people with drinking water. In order to check these assumptions, we carried out a desk study into...journal article 2018
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El Chakhtoura, J. (author), Saikaly, Pascal E. (author), van Loosdrecht, Mark C.M. (author), Vrouwenvelder, J.S. (author)We sampled the tap water of seven unique, full-scale drinking water distribution systems at different locations as well as the corresponding treatment plant effluents to evaluate the impact of distribution and the potential presence of a core drinking water microbiome. The water was also sampled during network flushing to examine its effect on...journal article 2018
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van Griethuijsen, Philip (author)Implanted intra-peritoneal insulin infusion (‘i4’) devices administer insulin into the peritoneum of diabetic patients with extreme blood glucose swings, that are highly difficult to control. The flushing procedures of i4 devices to clear obstructions from its conduits caused by insulin degradation are not always fully effective. The goal of...master thesis 2017
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van Egeraat, Hugo (author)Traditionally, steel joints are calculated by the calculation rules described in the Eurocode 3: NEN-EN 1993-1-8. Effective lengths are important parameters to determine the different resistances of the components in the steel joint. Finite Element Analyses (FEA)...master thesis 2017
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Rijnsdorp, J. (author)Re-entry is a term that is applied when one would like to transport some (human) payload from an orbit around a certain body towards the surface of that body. With an entry velocity of multiple kilometers per second, having the vehicle carrying this payload not smashed into pieces at the end of flight is one of the key points of re-entry. Using...master thesis 2017
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Aydin, B.E. (author), Rutten, M.M. (author), Oude Essink, GHP (author)More than 35% of the world’s population live within 100 km of the coast. Groundwater resources in these areas are the main source for domestic, industrial and agricultural use. Worldwide, deltaic areas are under stress due to climate change, sea level increase and decrease in fresh water availability. In addition, in deltaic coastal areas around...journal article 2016
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Liu, Xiaoming (author), Dai, Ji (author), Wu, Di (author), Jiang, Feng (author), Chen, Guanghao (author), Chui, Ho Kwong (author), van Loosdrecht, Mark C.M. (author)Global water security is a severe issue that threatens human health and well-being. Finding sustainable alternative water resources has become a matter of great urgency. For coastal urban areas, desalinated seawater could serve as a freshwater supply. However, since 20%–30% of the water supply is used for flushing waste from the city,...journal article 2016
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