Searched for: author%3A%22Vrouwenvelder%2C+J.S.%22
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Yan, Bin (author), Blankert, Bastiaan (author), Vogt, Sarah J. (author), Vrouwenvelder, J.S. (author), Johns, Michael L. (author), Fridjonsson, Einar O. (author)
In this study non-invasive low field magnetic resonance imaging (MRI) technology was used to monitor fouling induced changes in fiber-by-fiber hydrodynamics inside a multi-fiber hollow fiber membrane module containing 401 fibers. Using structural and velocity images the fouling evolution of these membrane modules were shown to exhibit...
journal article 2023
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Huisman, Kees Theo (author), Franco-Clavijo, Natalia (author), Vrouwenvelder, J.S. (author), Blankert, Bastiaan (author)
In this study, a biofouling index based on the relative pressure drop is presented to quantitatively evaluate the amount of fouling in spacer-filled membrane filtration channels. The biofouling index was defined as the inverse of the time to reach a relative pressure drop of 100% and can be interpreted as a fouling rate or cleaning frequency....
journal article 2023
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Yan, Bin (author), Vogt, Sarah J. (author), Blankert, Bastiaan (author), Vrouwenvelder, J.S. (author), Johns, Michael L. (author), Fridjonsson, Einar O. (author)
Early fouling warning is important for the economical operation of membrane separation systems. In parallel multi-channel flow systems, flow re-distribution between channels due to fouling is often associated with maloperation. In the current research we use low magnetic field NMR to monitor multi-fiber hollow fiber membrane modules...
journal article 2023
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Ali, Muhammad (author), Singh, Yogesh (author), Fortunato, Luca (author), Rehman, Zahid Ur (author), Manjunath, Sarvajith (author), Vrouwenvelder, J.S. (author), Pronk, M. (author), van Loosdrecht, Mark C.M. (author), Saikaly, Pascal E. (author)
This study describes a novel integration of aerobic granular sludge (AGS) with a gravity-driven membrane (GDM) system at a pilot scale with a treatment capacity of approximately 150 L per day to treat raw domestic wastewater. The treatment performance and energy consumption of the AGS-GDM system were compared to the neighboring full-scale...
journal article 2023
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Farhat, Nadia (author), Kim, Lanhee (author), Mineta, Katsuhiko (author), Alarawi, Mohammed (author), Gojobori, Takashi (author), Saikaly, Pascal (author), Vrouwenvelder, J.S. (author)
Monitoring the changes that occur to water during distribution is vital to ensure water safety. In this study, the biological stability of reverse osmosis (RO) produced drinking water, characterized by low cell concentration and low assimilable organic carbon, in combination with chlorine disinfection was investigated. Water quality at...
journal article 2022
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Desmond, Peter (author), Huisman, Kees Theo (author), Sanawar, Huma (author), Farhat, Nadia M. (author), Traber, Jacqueline (author), Fridjonsson, Einar O. (author), Johns, Michael L. (author), Flemming, Hans Curt (author), Picioreanu, C. (author), Vrouwenvelder, J.S. (author)
The application of membrane technology for water treatment and reuse is hampered by the development of a microbial biofilm. Biofilm growth in micro-and ultrafiltration (MF/UF) membrane modules, on both the membrane surface and feed spacer, can form a secondary membrane and exert resistance to permeation and crossflow, increasing energy demand...
journal article 2022
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Javier, Luisa (author), Pulido-Beltran, Laura (author), Vrouwenvelder, J.S. (author), Farhat, Nadia M. (author)
Nutrient limitation has been proposed as a biofouling control strategy for membrane systems. However, the impact of permeation on biofilm development under phosphorus-limited and enriched conditions is poorly understood. This study analyzed biofilm development in membrane fouling simulators (MFSs) with and without permeation supplied with...
journal article 2022
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Pinel, I.S.M. (author), Hankinson, P. M. (author), Moed, D. H. (author), Wyseure, L. J. (author), Vrouwenvelder, J.S. (author), van Loosdrecht, Mark C.M. (author)
Efficient control of pathogenic bacteria, specifically Legionella pneumophila, is one of the main concerns when operating industrial cooling towers. Common practices to limit proliferation involves use of disinfectants, leading to formation of disinfection by-product and increase in water corrosiveness. A disinfectant-free Legionella control...
journal article 2021
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Pinel, I.S.M. (author), Biskauskaite, R. (author), Palova, E. (author), Vrouwenvelder, J.S. (author), van Loosdrecht, Mark C.M. (author)
Temperature change over the length of heat exchangers might be an important factor affect-ing biofouling. This research aimed at assessing the impact of temperature on biofilm accumulation and composition with respect to bacterial community and extracellular polymeric substances. Two identical laboratory-scale plate heat exchanger modules...
journal article 2021
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Blankert, Bastiaan (author), Van der Bruggen, Bart (author), Childress, Amy E. (author), Ghaffour, Noreddine (author), Vrouwenvelder, J.S. (author)
The manner in which membrane-fouling experiments are conducted and how fouling performance data are represented have a strong impact on both how the data are interpreted and on the conclusions that may be drawn. We provide a couple of examples to prove that it is possible to obtain misleading conclusions from commonly used representations of...
journal article 2021
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Putri, Ratna E. (author), Kim, Lan Hee (author), Farhat, Nadia (author), Felemban, Mashael (author), Saikaly, Pascal E. (author), Vrouwenvelder, J.S. (author)
Desalination technology based on Reverse Osmosis (RO) membrane filtration has been resorted to provide high-quality drinking water. RO produced drinking water is characterized by a low bacterial cell concentration. Monitoring microbial quality and ensuring membrane-treated water safety has taken advantage of the rapid development of DNA-based...
journal article 2021
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Sanawar, H. (author), Kim, L. H. (author), Farhat, N. M. (author), van Loosdrecht, Mark C.M. (author), Vrouwenvelder, J.S. (author)
Biofouling is one of the major factors causing decline in membrane performance in reverse osmosis (RO) plants, and perhaps the biggest hurdle of membrane technology. Chemical cleaning is periodically carried out at RO membrane installations aiming to restore membrane performance. Typical cleaning agents used in the water treatment industry...
journal article 2021
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Javier, Luisa (author), Pulido-Beltran, Laura (author), Kruithof, Joop (author), Vrouwenvelder, J.S. (author), Farhat, Nadia M. (author)
Biofouling is a problem that hinders sustainable membrane-based desalination and the stratification of bacterial populations over the biofilm’s height is suggested to compromise the efficiency of cleaning strategies. Some studies reported a base biofilm layer attached to the membrane that is harder to remove. Previous research suggested...
journal article 2021
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Javier, Luisa (author), Farhat, Nadia M. (author), Vrouwenvelder, J.S. (author)
A critical problem in seawater reverse osmosis (RO) filtration processes is biofilm accumulation, which reduces system performance and increases energy requirements. As a result, membrane systems need to be periodically cleaned by combining chemical and physical protocols. Nutrient limitation in the feed water is a strategy to control biofilm...
journal article 2021
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Pinel, I.S.M. (author), Moed, D. H. (author), Vrouwenvelder, J.S. (author), van Loosdrecht, Mark C.M. (author)
Understanding the bacterial dynamics in cooling towers is imperative for the assessment of disinfection efficiency and management of microbial risks linked to aerosol formation. The objective of this study was to evaluate the impact of feed water on the cooling water bacterial microbiome and investigate the survival ability of its members...
journal article 2020
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Blankert, Bastiaan (author), Vrouwenvelder, J.S. (author), Witkamp, Geert Jan (author), Ghaffour, Noreddine (author)
In this study, we analyzed the heat requirement of membrane distillation (MD) to investigate the trade-off between the evaporation efficiency and driving force efficiency in a single effect MD system. We found that there exists a non-zero net driving temperature difference that maximizes efficiency. This is the minimum net driving temperature...
journal article 2020
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Pinel, I.S.M. (author), Kim, Lan Hee (author), Proença Borges, Vitor R. (author), Farhat, Nadia M. (author), Witkamp, Geert Jan (author), van Loosdrecht, Mark C.M. (author), Vrouwenvelder, J.S. (author)
Phosphate limitation has been suggested as a preventive method against biofilms. P-limited feed water was studied as a preventive strategy against biofouling in cooling towers (CTs). Three pilot-scale open recirculating CTs were operated in parallel for five weeks. RO permeate was fed to the CTs (1) without supplementation (reference), (2)...
journal article 2020
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Farhat, Nadia (author), Kim, Lan Hee (author), Vrouwenvelder, J.S. (author)
The use of traditional drinking water microbial quality monitoring methods, including heterotrophic plate counts (HPCs) and total coliform counts, are not only laborious and time-consuming but also do not readily allow identification of risk areas in the network. Furthermore, if areas of concern are identified, and mitigation measures are...
journal article 2020
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Jafari Eshlaghi, M. (author), D'haese, A. (author), Zlopasa, J. (author), Cornelissen, E. R. (author), Vrouwenvelder, J.S. (author), Verbeken, K. (author), Verliefde, A. (author), van Loosdrecht, Mark C.M. (author), Picioreanu, C. (author)
Chemical cleaning is vital for the optimal operation of membrane systems. Membrane chemical cleaning protocols are often developed in the laboratory flow cells (e.g., Membrane Fouling Simulator (MFS)) using synthetic feed water (nutrient excess) and short experimental time of typically days. However, full-scale Reverse Osmosis (RO) membranes...
journal article 2020
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Pinel, I.S.M. (author), Kleikamp, H.B.C. (author), Pabst, Martin (author), Vrouwenvelder, J.S. (author), van Loosdrecht, Mark C.M. (author), Lin, Y. (author)
Sialic acids in the structural matrix of biofilms developing in engineered water systems constitute a potential target in the battle against biofouling. This report focuses specifically on the presence of sialic acids as part of the extracellular polymeric substances (EPS) of biofilms forming in cooling towers and the potential effect of...
journal article 2020
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