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Baan, J.W.M. (author)Traditional sewer flood management is often norm-based. An alternative approach is risk-based sewer flood management. In risk-based sewer management it is possible to decide upon which measures to take in a more expedient way; it is possible to judge which measure is the best in reaching the goal of reducing risks due to flooding. A risk is...master thesis 2016
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Cedillo Galarza, J.S. (author)In order to propose a new sewer inspection method, a velocity/turbidity profiler (Ubertone, UB Flow F-315) has been tested in a laboratory. A 50 m glass flume has been adapted with several lateral connections (with a range of diameters, angles, intrusions, cracks), supplied by a 1 m3 tank. Placed just below the free surface on a rotating (to...master thesis 2016
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Chen, Z. (author)The drinking water distribution network is a sealed and pressurized system which attached numerous biofilm and microorganism due to the long-time operation. In a foreseeable future, Oasen will adopt reverse osmosis to treat drinking water and thus the nutrient (biodegradable compounds) in drinking water will be slight. In that case, biofilms...master thesis 2016
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Verstegen, E. (author)Conventional hydrological models use a deterministic approach. One could think of it like a black box, having an input, parameters, relations and an output. The parameters are calibrated by comparing the model output with observations of the system response (for example river runoff). When assessing the uncertainty in models the focus is often...master thesis 2016
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Hamer, F.W. (author)The increase in salinity of groundwater is a global problem (Van Weert et al. 2009). In the west of the Netherlands, seepage of saline and brackish groundwater into layers of freshwater increases the salinity in polders and around drinking water wells (Grakist et al. 2002, Olsthoorn 2008). Systems like PURO and the Freshkeeper abstract brackish...master thesis 2016
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Gautier, D.D. (author)Vietnam these days is facing some major problems, such as a rapidly growing population which increase the pressure on the environment. Furthermore, fast urbanization which leads to concerns about urban planning and sufficient infrastructure. While the perception amongst the Vietnamese population prevails that the government is solely in charge...master thesis 2016
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Makris, K. (author)The most known problem of separate sewer systems is the existence of illicit connections and, hence, the deposition of untreated sewage to the receiving waters or the occurrence of urban flooding due to overloading of wastewater systems with storm water. Although there are several known and relative expensive techniques for inspection of storm...master thesis 2016
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Peters, T. (author)Differences in interpretation occur in everyday life. In projects, a set of requirements is developed to achieve a defined goal. Specifying these requirements may establish consensus on how to turn requirements into a preferred solution. However, this consensus achieved cannot hold. We argue that the perceptions, or ‘Modes’ actors have also...master thesis 2016
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Luijben, W.J.M. (author)PWN is the drinking water supplier for the Province of North Holland in the Netherlands. They manage a deep infiltration system (DWAT) since 1990 with wells between NAP -55 and NAP -90 meters, which are used to inject water and to extract it after at least 60 days to produce drinking water. Renovation of these wells will lead to an increased...master thesis 2016
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Cömert, T. (author)In this thesis, focus lays on converting a MATLAB model to Python. Models are used a lot by students and researchers at universities and they provide an unique way of calculating and reviewing data and results. However, at the Delft University of Technology, a lot of these models are written in MATLAB. MATLAB is a programming language which...bachelor thesis 2016
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Honingh, D. (author)In this thesis, the rain conditions of Yangon and Bago are studied. During the rainy season large rain quantities fall in a short period, which quite regularly causes major floods in Myanmar. The floods have a devastating impact on urban society, so it is important to address this problem. For forecasting these floods and designing a proper...bachelor thesis 2016
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van de Koppel, N. (author)In this thesis, focus lays on converting a MATLAB model to Python. Models are used a lot by students and researchers at universities and they provide an unique way of calculating and reviewing data and results. However, at the Delft University of Technology, a lot of these models are written in MATLAB. MATLAB is a programming language which...bachelor thesis 2016
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Beers, W.R. (author)Door klimaatveranderingen ontstaan grotere verschillen in de afvoeren van de rivieren. Als deze afvoeren groter worden geeft dit hogere waterstanden in de rivieren waardoor de afstand tussen het water en de bruggen over de rivieren kleiner wordt. In combinatie met de steeds meer gebruikte hogere high-cube containers door de binnenvaart kan dit...bachelor thesis 2016
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Van Dijk, J.C.D. (author)This master thesis investigated the origin of the seemingly perennial (base) flow in a hydrological complex, Inselberg (a type of mountain) dominated catchment in the Municipality of Messica, Manica Province, Mozambique. Smallholders rely on these perennial flows, since they have three growth seasons, two of them during the dry period. This year...master thesis 2016
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Sánchez Altamirano, C.A. (author)Some of the most cited analytical and numerical models that estimate the precipitation recycling ratio are used, and their results are compared. Also a simplified method that calculates the monthly recycling ratio from values of local evaporation is developed and tested for the U.S. Midwest.master thesis 2016
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Heinsbroek, A.R. (author)Nano Filtration (NF) is an advanced treatment process that is able to remove molecules and ions from water using special, synthetic, membrane modules. Under high pressure the so– called feed water enters the membrane module. Part of the water, the permeate, passes through the membrane wall while the rejected ions and molecules are flushed out...master thesis 2016
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Uribe Calvo, N. (author)This master thesis is an attempt to contribute to the understanding of urban water systems through the use of the urban metabolism (UM) framework. By developing steady-state models with STAN, a software used for material flow analysis (MFA), the urban water flows are quantified and analyzed as they enter the system boundary and are transformed...master thesis 2016
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Strohschein, P.M. (author)Since the 1990th Sasol, a local Non-Governmental-Organization (NGO), builds sand storage dams, to mitigate the consequences of droughts in the semi-arid county of Kitui, Kenya. Sand storage dams are dams constructed in ephemeral rivers which increase the storage capacity of the riverbeds. The water stored by sand storage dams enables local...master thesis 2016
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Strohschein, P.M. (author)Since the 1990th Sasol, a local Non-Governmental-Organization (NGO), builds sand storage dams, to mitigate the consequences of droughts in the semi-arid county of Kitui, Kenya. Sand storage dams are dams constructed in ephemeral rivers which increase the storage capacity of the riverbeds. The water stored by sand storage dams enables local...master thesis 2016
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Moors, J. (author)Small leaks in water supply networks often remain undiscovered, resulting in large amounts of lost water. Moreover, small leaks can grow larger over time and may result in pipe bursts, having negative consequences for the surroundings. An automatic leak localization method is required to decrease the search area and hence localize small leaks...master thesis 2016