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Belila, A. (author), Abbas, B. (author), Fazaa, I. (author), Saidi, N. (author), Snoussi, M. (author), Hassen, A. (author), Muyzer, G. (author)Several wastewater stabilization ponds (WSP) in Tunisia suffer periodically from the ‘red-water’ phenomenon due to blooming of purple sulfur bacteria, indicating that sulfur cycle is one of the main element cycles in these ponds. In this study, we investigated the microbial diversity of the El Menzeh WSP and focused in particular on the...journal article 2012
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Schutgens, G. (author)In order to achieve the Millennium development goals of the UN, different initiatives have been established worldwide. One of these initiatives has been developed in Matagalpa, Nicaragua. Through the program Agua para Todos – Agua para Siempre different institutions work together, the common goal being to provide safe drinking water and...master thesis 2011
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- Pothof, I.W.M. (author), Tukker, M. (author), Kooij, K. (author), Clemens, F.H.L.R. (author) conference paper 2011
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Schilperoort, R.P.S. (author)The wastewater system in the Netherlands comprises approximately 100,000 km of sewer pipes and more than 350 wastewater treatment plants (wwtp). The system collects and treats the majority of domestic and industrial wastewater. A small amount of untreated wastewater, however, is occasionally discharged to rivers and lakes, often resulting in a...doctoral thesis 2011
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Kampschreur, M.J. (author)Nitric oxide (NO) and nitrous oxide (N2O) emissions can be a serious threat to the environment. Rising levels of N2O in the atmosphere contribute to global warming and destruction of the ozone layer. This thesis describes an investigation on the emission of NO and N2O during nitrogen conversion processes. Emissions were measured at wastewater...doctoral thesis 2010
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Geilvoet, S.P. (author)Clean water is becoming a scarce resource. As a consequence reclaimed wastewater can be an attractive alternative to replace existing water resources for non-potable reuse options. In order to achieve this goal advanced treatment technologies are required. An example of such technology is the membrane bioreactor (MBR) process. In the MBR process...doctoral thesis 2010
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Ravazzini, A.M. (author)In the usual wastewater treatment schemes the application of membranes follows a biological process. However, ultrafiltration of untreated wastewater produces permeate free of particles and bacteria in one single step and could represent the starting point for new water-reuse concepts. This thesis focuses on crossflow ultrafiltration of raw...doctoral thesis 2008
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Van der Star, W.R.L. (author)The anoxic ammonium oxidation (anammox) process is the conversion of nitrite and ammonium under anoxic conditions- to form dinitrogen gas. The process is performed by deep-branching Planctomycetes. The startup of the first full-scale anammox reactor in the world is described in Chapter 2. The described full scale reactor was a granular sludge...doctoral thesis 2008
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Vélez, C. (author), Popescu, I. (author), Lobbrecht, A. (author), Galvis, A. (author), Cardona, D.A. (author), Mosquera, P.A. (author)Urban pollution managers are being forced to optimize the control of Urban Wastewater Systems (UWwS) in order to deal with more pressure and new criteria for performance. Furthermore, one of the main causes of the deficient control of the UWwSs is the lack of data in each subsystem and the lack of coordination within institutions to share the...report 2008
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Unesco-IHE (author)The pressure on the Urban Wastewater Systems (UWwS) increases as urbanization continues relentlessly and climate change appears to lead to more extreme rainfall events. These pressures have a negative effect on the efficiency of UWwS to reduce the urban pollution reaching water-receiving systems. One of the main causes of the problem is that the...report 2008
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De Kreuk, M.K. (author)Most conventional wastewater treatment plants need a large surface area for the treatment of their sewage. This is due to the open structure of the biomass used to convert the polluting components in wastewater. Because of the flocculated growth, sludge concentrations in reaction tanks are low and settling times need to be long in order to keep...doctoral thesis 2006
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Wilsenach, J.A. (author)Abstract not availabledoctoral thesis 2006
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Evenblij, H. (author)Causes of and remedies for membrane fouling in Membrane Bioreactors for wastewater treatment are only poorly understood and described in scientific literature. A Filtration Characterisation Installation and a measurement protocol were developed with the aim of a) unequivocally determination and quantification of the filterability of an activated...doctoral thesis 2006
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Langeveld, J.G. (author)Wastewater systems consist of sewer systems and wastewater treatment works. As the performance of a wastewater treatment plant is affected by the characteristics, i.e. operation and design, of the contributing sewer systems, knowledge of the interactions between sewers and wastewater treatment works is very important when trying to understand...doctoral thesis 2004
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Abu-Madi, M.O.R. (author)As a result of chronic water scarcity, the countries of the MENA region (Middle East and Northern Africa) recognize reclaimed wastewater as a non-conventional water resource. Nonetheless, in this region, substantial amounts of the wastewater that are collected are still discharged into the sea or water courses without treatment. Moreover, most...doctoral thesis 2004
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Meijer, S.C.F. (author)This thesis describes the full-scale validation and calibration of a integrated metabolic activated sludge model for biological phosphorus removal. In chapters 1 and 2 the metabolic model is described, in chapters 3 to 6 the model is tested and in chapters 7 and 8 the model is put into practice. Chapter 1 is a general introduction to this...doctoral thesis 2004
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Roorda, J.H. (author)With a growing need for water for many purposes on one side and an increasing degree of wastewater treatment producing water with an improved quality on the other side, the necessity of water reuse will grow, especially in highly industrialised countries with restricted natural water sources. Improvement of advanced treatment schemes for...doctoral thesis 2004
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Hesselink, M. (author), Smalberg, T. (author), Mekic, D. (author), Roem, B.J. (author)Document(en) uit de collectie Chemische Procestechnologiereport 2003
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Scenario Studies into Advanced Particle Removal in the Physical-Chemical Pre-treatment of WastewaterVan Nieuwenhuijzen, A.F. (author)The research dealt with in this dissertation had the objective identifying the specific roles of particulate matter in wastewater influent and its inherent characteristics. In addition, advanced particle removal techniques for the development of more sustainable treatment scenarios based on physical-chemical pre-treatment of wastewater were...doctoral thesis 2002
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- Strous, M. (author), Van Gerven, E. (author), Zheng, P. (author), Kuenen, J.G. (author), Jetten, M.S.M. (author) journal article 1997