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Meulenbroek, B.J. (author), Farajzadeh, R. (author), Bruining, J. (author)Recently, there is an increased interest in reactive flow in porous media, in groundwater, agricultural and fuel recovery applications. Reactive flow modeling involves vastly different reaction rates, i.e., differing by many orders of magnitude. Solving the ensuing model equations can be computationally intensive. Categorizing reactions...journal article 2020
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de Graaff, D.R. (author), van Loosdrecht, Mark C.M. (author), Pronk, M. (author)Seawater can be introduced or intrude in sewer systems and can thereby negatively influence biological wastewater treatment processes. Here we studied the impact of artificial seawater on the enhanced biological phosphate removal (EBPR) process performance by aerobic granular sludge (AGS) with synthetic wastewater. Process performance,...journal article 2020
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Muñoz Sierra, Julian (author), Garcia Rea, V.S. (author), Cerqueda Garcia, D. (author), Spanjers, H. (author), van Lier, J.B. (author)Closing water loops in chemical industries result in hot and highly saline residual streams, often characterized by high strength and the presence of refractory or toxic compounds. These streams are attractive for anaerobic technologies, provided the chemical compounds are biodegradable. However, under such harsh conditions, effective biomass...journal article 2020
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de Graaff, D.R. (author), van Loosdrecht, Mark C.M. (author), Pronk, M. (author)Abstract: Candidatus Accumulibacter phosphatis is an important microorganism for enhanced biological phosphorus removal (EBPR). In a previous study, we found a remarkable flexibility regarding salinity, since this same microorganism could thrive in both freshwater- and seawater-based environments, but the mechanism for the tolerance to saline...journal article 2020
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Daniël, Maäyan (author)The municipality of Amsterdam has come forth with a request for architecture students of the Technical University of Delft within the studio of Complex Projects to investigate the future challenges of Amsterdam through scenario-research and hence come up with proposed spatial and/or architectural configurations for the year 2050. This all with...master thesis 2019
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Nair, Revathy (author)This study is part of a project titled: “Phenolic compounds degradation in AnMBR under mesophilic and thermophilic operation: BioXtreme-following up”. <br/>Phenol is a toxic contaminant found widely in industrial effluents. It is toxic to humans and animals even at very low concentrations. Anaerobic digestion uses phenol as a carbon source and...student report 2019
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Zhang, Z. (author)Saltwater intrusion is a crucial issue in estuaries. The spread of salinity is described by the dispersion coefficient. A purely empirical equation which links the effective tidal average dispersion to the freshwater discharge was developed by Van der Burgh [1972]. Combining it with the salt balance equation, Savenije [1986] derived a one...doctoral thesis 2019
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Muñoz Sierra, Julian (author), Oosterkamp, M.J. (author), Wang, W. (author), Spanjers, H. (author), van Lier, J.B. (author)Anaerobic membrane bioreactors (AnMBRs) offer an attractive option for treating industrial wastewaters under extreme conditions that might hamper granulation, biomass retention and reduce biological activity. This study assesses the long-term performance of an upflow anaerobic sludge blanket reactor (UASB) and an AnMBR treating highly saline...journal article 2019
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de Graaff, D.R. (author), Felz, S. (author), Neu, Thomas R. (author), Pronk, M. (author), van Loosdrecht, Mark C.M. (author), Lin, Y. (author)Sialic acids have been discovered in the extracellular polymeric substances (EPS) of seawater-adapted aerobic granular sludge (AGS). Sialic acids are a group of monosaccharides with a nine-carbon backbone, commonly found in mammalian cells and pathogenic bacteria, and frequently described to protect EPS molecules and cells from attack by...journal article 2019
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Zhou, Z. (author), Ge, Jianzhong (author), Wang, Zhengbing (author), van Maren, D.S. (author), Ma, Jianfei (author), Ding, Ping Xing (author)Lateral flow significantly contributes to the near-bottom mass transport of salinity in a channel-shoal system. In this study, an integrated tripod system was deployed in the transition zone of a channel-shoal system of the Changjiang Estuary (CE), China, to observe the near-bottom physics with high temporal/spatial resolution, particularly...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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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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Muñoz Sierra, Julian (author), Oosterkamp, M.J. (author), Wang, W.W. (author), Spanjers, H. (author), van Lier, J.B. (author)Industrial wastewaters are becoming increasingly associated with extreme conditions such as the presence of refractory compounds and high salinity that adversely affect biomass retention or reduce biological activity. Hence, this study evaluated the impact of long-term salinity increase to 20 gNa<sup>+</sup>.L<sup>−1</sup> on the...journal article 2018
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Hagedooren, Hugo (author)In deep polders in the Netherlands the dominant mechanism of salinization is via intense seepage through boils. These are local connections between the surface water and a deep saline aquifer. The study area of this research is the Lissertocht. This catchment, which is located inside the Haarlemmermeerpolder, contains a lot of boils that can...master thesis 2018
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Wang, Zhongwei (author), Dunne, Aislinn (author), van Loosdrecht, Mark C.M. (author), Saikaly, Pascal E. (author)Saline wastewater is known to affect the performance of phosphate-accumulating organisms (PAOs) in enhanced biological phosphorus removal (EBPR) process. However, studies comparing the effect of salinity on different PAO clades are lacking. In this study, 'Candidatus Accumulibacter phosphatis' Clade I and II (hereafter referred to as PAOI and...journal article 2018
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Abdullah, A.D.A. (author), Castro-Gama, Mario (author), Popescu, Ioana (author), van der Zaag, P. (author), Karim, Usama (author), Al Suhail, Qusay (author)Wastewater effluents from irrigation and the domestic and industrial sectors have serious impacts in deteriorating water quality in many rivers, particularly in areas under tidal influence. There is a need to develop an approach that considers the impact of human and natural causes of salinization. This study uses a multi-objective...journal article 2018
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Ratering Arntz, Lexy (author)More than half of Vietnam's national rice production is produced in the Mekong Delta. Many hectares of rice were damaged due to extensive salinity intrusion during the dry season of 2016. The impact of salinity intrusion on rice production is studied by (1) mapping the impact using remote sensing data (MODIS NDVI time-series) and (2)...master thesis 2018
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de Graaff, D.R. (author), van Dijk, E.J.H. (author), van Loosdrecht, Mark C.M. (author), Pronk, M. (author)For a stable operation, the aerobic granular sludge process requires mechanically strong granules in balance with the shear forces in the reactor. Despite a wide general interest in granular stability, the mechanical strength of both anaerobic and aerobic granular sludge received very little attention. In this study, a high-shear method for...journal article 2018
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Muñoz Sierra, Julian (author), Wang, W.W. (author), Cerqueda Garcia, D. (author), Oosterkamp, M.J. (author), Spanjers, H. (author), van Lier, J.B. (author)This study examined the temperature susceptibility of a continuous-flow lab-scale anaerobic membrane bioreactor (AnMBR) to temperature shifts from 35 °C to 55 °C and its bioconversion robustness treating synthetic phenolic wastewater at 16 gNa<sup>+.</sup>L<sup>−1</sup>. During the experiment, the mesophilic reactor was subjected to stepwise...journal article 2018
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Alshiroofi, Duaa (author)Subsurface carbon dioxide (CO2) sequestration is a promising technology to reduce the CO2 emission into the atmosphere. After injection into subsurface formation, the carbon dioxide plume can migrate several kilometres until it is fully trapped. Four major mechanisms play an important role in trapping which include structural trapping, residual...master thesis 2017