Searched for: subject%3A%22water%255C+supply%22
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Bhuyan, Mohammad Amzad Hossain (author), Karkman, Antti (author), Prokkola, Hanna (author), Chen, B. (author), Perumal, Priyadharshini (author), Luukkonen, Tero (author)
Alkali-activated foams are ceramic-like materials prepared at near-ambient temperature. This study investigates them for point-of-use water disinfection, thus providing an alternative to ceramic filters fired at a high temperature. Alkali-activated foams with different compositions were characterized for the porosity, mechanical strength,...
journal article 2024
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Ferreira, J.P. (author), Ferràs, David (author), Covas, Dídia I.C. (author), van der Werf, Job (author), Kapelan, Z. (author)
The paper proposes a novel methodology to locate and quantify entrapped air pockets created during pipe-filling events often found in intermittent water supply systems. Different filling conditions were tested in an experimental pipe with a high point. Measurements were taken and video recordings were carried out to assess air pocket volumes...
journal article 2024
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Ferreira, P. (author), Ferràs, David (author), Covas, Dídia I.C. (author), Kapelan, Z. (author)
Intermittent water supply systems are prone to air entrapments during the pipe filling phase. This work aims to analyse and discuss the numerical results obtained by applying the recently developed AirSWMM model, an extension of SWMM incorporating air phase, to a laboratory network. Experimental data consisting of pressure-head at multiple...
journal article 2024
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Annor, F.O. (author)
The importance of small reservoirs for the livelihoods of people in the Upper East Region of Ghana cannot be over-emphasized. They are used for many purposes which include fishing, livestock watering, construction, irrigation, recreation, drinking water, and other domestic uses. The reservoirs were built most often close to communities to...
doctoral thesis 2023
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Besseling, Roos (author), van Marrewijk, Josine (author), Slokker, Marloes (author), van der Zwet, Ilse (author)
In many places in Uganda, people do not have a connection to the drinking water supply system and there is a lack of treated water supply, meaning that people only have access to water a certain part of the day. As a result many people rely on springs, handpumps, rivers or lakes, of which the quality cannot be monitored or controlled. <br/><br/...
student report 2023
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Yao, Mingchen (author), Zhang, Yue (author), Dai, Zihan (author), Ren, Anran (author), Fang, Jiaxing (author), Li, Xiaoming (author), van der Meer, Walter (author), Medema, G.J. (author), Rose, Joan B. (author), Liu, Gang (author)
Premise plumbing plays an essential role in determining the final quality of drinking water consumed by customers. However, little is known about the influences of plumbing configuration on water quality changes. This study selected parallel premise plumbing in the same building with different configurations, i.e., laboratory and toilet...
journal article 2023
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Li, Bin (author), Zheng, Yi (author), Di Baldassarre, Giuliano (author), Xu, Peng (author), Pande, S. (author), Sivapalan, Murugesu (author)
Groundwater depletion has become increasingly challenging, and many cities worldwide have adopted drastic policies to relieve water stress due to socioeconomic growth. Located on the declining aquifer of the North China Plain, Beijing, for example, has developed plans to limit the size of the city’s population. However, the effect of...
journal article 2023
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Houben, Georg J. (author), Collins, Sarah (author), Bakker, M. (author), Daffner, Thomas (author), Triller, Falk (author), Kacimov, Anvar (author)
Horizontal wells play an often overlooked role in hydrogeology and aquifer remediation but can be an interesting option for many applications. This study reviews the constructional and hydraulic aspects that distinguish them from vertical wells. Flow patterns towards them are much more complicated than those for vertical wells, which makes their...
journal article 2022
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Daulat, Shamsuddin (author), Rokstad, Marius Møller (author), Klein-Paste, Alex (author), Langeveld, J.G. (author), Tscheikner-Gratl, Franz (author)
The prosperity of urban life is dependent on its infrastructure. Urban underground infrastructure components (assets) are aging and need regular monitoring, maintenance and rehabilitation. These assets are often placed under pavements and in close vicinity to each other. Managing them in a coordinated way is rational considering costs and...
journal article 2022
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Sarisen, Dondu (author), Koukoravas, Vasilis (author), Farmani, Raziyeh (author), Kapelan, Z. (author), Memon, Fayyaz Ali (author)
Intermittent water supply (IWS) is widely used around the world, and with the increase in population and predicted future water scarcity, IWS applications seem to continue. While most of the existing studies on water supply concentrate on continuous water supply (CWS), the research focused on the IWS is now becoming mainstream. Hydraulic...
review 2022
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Ophof, Oscar (author)
The historic inner-cities in The Netherlands are largely known for their iconic channels and their accompanying quay walls, of which a significant number were constructed over 100 years ago. Due to the limited available space in the sub-surface of the urban environment, a high number of utility lines (i.e. potable water pipes and sewer systems)...
master thesis 2021
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Verboeket, Rik (author)
The Volkerak-Zoommeer is a former estuary located the Rhine Meuse Delta in the southwestern part of the Netherlands. After the completion of the Volkerakdam, Philipsdam and Oesterdam as part of the Delta Works, this estuary was cut of from the Oosterschelde and a fresh water lake was formed in a sea water environment. This new lake became the...
master thesis 2021
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Nguyen, T (author)
This MSc thesis is a contribution to the African Water Corridor (AWC) project that gains insight into the future of water supply systems in the Sub-Saharan African small towns. The future water demand in these areas constitute a great challenge in the effort to provide safe water for everyone. Unfortunately, there are high uncertainties in the...
master thesis 2021
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Verbart, Joost (author)
This thesis proposes a novel design approach for a monitoring system that can detect hidden leaks in intermittent water supply (IWS) systems. Cities with IWS conditions in their drinking water network, such as Nairobi and Harare, often have a high percentage of non-revenue water (NRW) in their system. Estimations of the amount of NRW in these...
master thesis 2021
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Daniel, D. (author), Prawira, Julivius (author), Djono, Trimo Pamudji Al (author), Subandriyo, S. (author), Rezagama, Arya (author), Purwanto, Aries (author)
The sustainability of the water supply program in developing countries is influenced by many inter-linked and dynamic factors, suggesting the need to analyse the system behaviour of the water supply program. However, no study analyses factors influencing the sustainability of rural drinking water supply programs holistically, and this study...
journal article 2021
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Daniel, D. (author), Djohan, Dennis (author), Machairas, Ilias (author), Pande, S. (author), Arifin, Arifin (author), Djono, Trimo Pamudji Al (author), Rietveld, L.C. (author)
Background: There is increasing recognition of the complexity underlying WASH conditions in developing countries. This article explores the complexity by assessing the vulnerability of a specific area to poor WASH conditions using a qualitative approach. Methods: We present our findings for the district of East Sumba in Indonesia. This area...
journal article 2021
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Versteeg, Niki (author), Hermans, L.M. (author), Ahrari, Sara (author), van de Walle, B.A. (author)
Most water and development interventions aim to contribute to long-term sustainable impacts. Given the uncertainties involved in these longer-term water development projects, adaptive planning approaches hold promise to connect planning, implementation and evaluation. Recent innovations report promising results, but find limited wide-spread...
journal article 2021
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Loen, S.S. (author)
Securing fresh water supply on the Dutch Caribbean islands, former colonial overseas territories of The Netherlands from the 17th century, always has been, and still is, a challenge. Between 1904 and 1915 the cartographers Werbata and Jonckheer drew the first topographical maps of the islands. Detailed data was needed for the (re-)development of...
conference paper 2021
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Al-Washali, T.M.Y. (author)
Water utilities worldwide lose 128 billion cubic meters annually, causing annual monetary losses estimated at USD 40 billion. Most of these losses occur in developing countries (74%). This calls for a rethinking of the challenges facing water utilities in developing countries, foremost of which is the assessment of water losses in intermittent...
doctoral thesis 2020
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Guo, Cheng (author)
In Bangladeshi rural areas, the groundwater may get contaminated with chemical contaminants. Aiming at removing chemical contaminants, piped water supply(PWS) systems were built. However, due to insufficient water quality tests, a lack of households' participation with the monitoring and maintenance of the PWS system, together with a lack of an...
master thesis 2020
Searched for: subject%3A%22water%255C+supply%22
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