Searched for: subject%3A%22Nanofiltration%22
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Lin, B. (author), Heijman, Sebastiaan (author), Rietveld, L.C. (author)
Ceramic nanofiltration (NF) is a promising alternative for direct surface water treatment, but is hampered for full-scale applications by fouling and a lack of eco-friendly cleaning regimes. In this work, an innovative reactive pre-coat layer, consisting of an iron oxychloride catalyst, was constructed on top of commercial ceramic NF...
journal article 2024
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Rutten, Samuel Benjamin (author), Ojobe, Bukola Lois (author), Hernández Leal, Lucia (author), de Grooth, Joris (author), Roesink, Hendrik D.W. (author), Bartacek, Jan (author), Schmitt, H. (author)
Source-separated gray water reclamation using nanofiltration as an advanced post-treatment option has received substantial interest in meeting the growing water demand. During reclamation, membrane integrity is crucial to ensure the water’s safety. This study evaluated several chemical and novel microbial indicators as indirect membrane...
journal article 2023
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Lin, B. (author), Rietveld, L.C. (author), Yao, Lu (author), Heijman, Sebastiaan (author)
Catalytic ceramic nanofiltration (NF) is a promising technology for direct wastewater reclamation, given its high separation selectivity and reactive surfaces for oxidative removal of fouling. A better understanding of the relation between fouling types and oxidative cleaning efficacy under high organic loading conditions is of practical...
journal article 2023
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Lin, B. (author), Heijman, Sebastiaan (author), Shang, Ran (author), Rietveld, L.C. (author)
Ceramic nanofiltration (NF) is a newly-developed technology for water recycling, but is still limited to pilot-scale applications. Lacking efficient and eco-friendly strategies for cleaning ceramic NF membrane impedes its scaling-up in industries. Forward flush, backwash and acidic/caustic cleaning are not efficient enough. In this work, a...
journal article 2021
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Micari, M. (author), Diamantidou, D. (author), Heijman, Sebastiaan (author), Moser, M. (author), Haidari, A.H. (author), Spanjers, H. (author), Bertsch, V. (author)
This work presents a joint experimental and simulation campaign aimed at characterizing two nanofiltration membranes (TS80 and NF270) in the presence of a multi-ionic water solution simulating the spent regenerant of cationic ion exchange resins employed for water softening. We identified the membrane parameters, which allowed for predicting...
journal article 2020
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Caltran, I. (author), Rietveld, L.C. (author), Shorney-Darby, H. L. (author), Heijman, Sebastiaan (author)
In drinking water treatment, natural organic matter (NOM) is effectively removed from surface water using ion exchange (IEX). A main drawback of using IEX for NOM removal is the production of spent IEX regeneration brine, a polluting waste that is expensive to discharge. In this work, we studied ceramic nanofiltration as a treatment for the...
journal article 2020
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van Linden, N. (author), Shang, R. (author), Stockinger, Georg (author), Heijman, Sebastiaan (author), Spanjers, H. (author)
The application of zero liquid discharge (ZLD) results in the generation of solid residual streams, which are often not fit for reuse. In this study, we assessed the separation of natural organic matter (NOM) and sodium chloride (NaCl) by nanofiltration (NF), electrodialysis (ED) and ion exchange (IEX) in reverse osmosis brine (RO-brine) and by...
journal article 2020
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Kramer, F.C. (author), Shang, R. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)
Using ceramic nanofiltration membranes for treatment of municipal sewage is upcoming. However, the knowledge on fouling control methods for this application are very limited. The most commonly used fouling control method, chemical cleaning, has disadvantages. Chemical cleaning negatively impacts (i) the glass seal layer of tubular ceramic...
journal article 2020
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Kramer, F.C. (author)
Worldwide population growth, water scarcity, and climate change contribute to an urgent need for alternative water sources for irrigation water, industry water, and, in some countries even, drinking water. The implementation of municipal sewage reclamation is an upcoming trend in water treatment. The use of municipal sewage has the advantage of...
doctoral thesis 2019
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Moyo, Welldone (author), Motsa, Machawe M. (author), Chaukura, Nhamo (author), Msagati, Titus A.M. (author), Mamba, Bhekie B. (author), Heijman, Sebastiaan (author), Nkambule, Thabo T.I. (author)
This work reports on the fundamental factors influencing inter-foulant and foulant-membrane interactions during simulated dissolved organic matter removal using ceramic nanofiltration. Fouling tests were performed using sodium alginate (SAL), humic acid (HA) and bovine serum albumin (BSA) as model foulants. Fouling potentials of each foulant and...
journal article 2019
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Sanawar, Huma (author), Bucs, Szilárd S. (author), Pot, Martin A. (author), Zlopasa, J. (author), Farhat, Nadia M. (author), Witkamp, Geert Jan (author), Kruithof, Joop C. (author), van Loosdrecht, Mark C.M. (author), Vrouwenvelder, J.S. (author)
Routine chemical cleaning with the combined use of sodium hydroxide (NaOH) and hydrochloric acid (HCl) is carried out as a means of biofouling control in reverse osmosis (RO) membranes. The novelty of the research presented herein is in the application of urea, instead of NaOH, as a chemical cleaning agent to full-scale spiral-wound RO...
journal article 2019
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Gonzalez Rodriquez, B.J. (author), Heijman, Sebastiaan (author), Rietveld, L.C. (author), van Halem, D. (author)
In Nicaragua, a Central American country, geothermally influenced waters are frequently found to be contaminated with arsenic (as As(V)). This study investigated the effect of high-temperatures (25–50 °C), as found in geothermally influenced source waters, on the rejection of monovalent H2AsO4 - and divalent HAsO4 2- species (at pH 6,7 and 8)...
journal article 2019
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Amirilargani, M. (author), Merlet, Renaud B. (author), Yokota, Giovana (author), Vermeij, Gijs (author), Delen, Guusje (author), Mandemaker, Laurens D.B. (author), Weckhuysen, Bert M. (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author)
Microporous polymer frameworks have attracted considerable attention to make novel separation layers owing to their highly porous structure, high permeability, and excellent molecular separation. This study concerns the fabrication and properties of thin melamine-based microporous polymer networks with a layer thickness of around 400 nm,...
journal article 2019
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Gonzalez Rodriquez, B.J. (author), Heijman, Sebastiaan (author), Rietveld, L.C. (author), van Halem, D. (author)
This research evaluated the effect of different fluxes (16, 23 &amp; 30 L/m <sup>2</sup> h) and temperatures (31,35 &amp; 43 °C) on the rejection of As(V) during nanofiltration (NF) of natural geothermal influenced groundwater in Nicaragua. A NF pilot plant powered by solar panels was built and operated in rural community Telica, exposed to...
journal article 2019
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Kramer, F. C. (author), Shang, R. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)
Ceramic nanofiltration is an emerging technology for the recovery of water and nutrients (including phosphate) from municipal sewage which becomes more imperative worldwide. In order to use ceramic nanofiltration for phosphate recovery from municipal sewage, more knowledge is needed. This is the first paper reporting the phosphate retention of...
journal article 2019
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Shang, R. (author), Goulas, A (author), Tang, CY (author), De Frias Serra, X. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)
Tight ceramic nanofiltration (NF) membranes allow efficient separation of organic matter and ions for advanced water treatment. These membranes are typically produced by the sol-gel method. Recently, atomic layer deposition (ALD), a self-limiting gas phase coating technique, has been explored for membrane fabrication and modification. In this...
journal article 2017
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Shang, R. (author)
During the last decade, water reuse has been widely recognized in many regions of the world. Fouling of ceramic membranes, especially hydraulically irreversible fouling, is a critical aspect affecting the operational cost and energy consumption in water treatment plants. In addition, the reverse osmosis (RO) membranes, that are often used for...
doctoral thesis 2014
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Hajibabania, S. (author), Verliefde, A.R.D. (author), Drewes, J.E. (author), Nghiem, L.D. (author), McDonald, J. (author), Khan, S. (author), Le-Clech, P. (author)
The fate of chemical of concern is not yet fully understood during treatment of impaired waters. The aim of this paper is to assess the impact of different organic-based fouling layers on the removal of a large range of trace organics. Both model and real water samples (mixed with trace organic contaminants at environmental concentration of 2 ?g...
journal article 2011
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Yangali Quintanilla, V. (author)
The book contains a description of the presence of micropollutants (medicines, hormones, pesticides) in surface water and shows that conventional water treatment poorly removes micropollutants. Nanofiltration and reverse osmosis are more appropriate technologies; however removals can vary depending on the properties of compounds and types of...
doctoral thesis 2010
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Vrouwenvelder, J.S. (author)
Biofouling of spiral wound membrane systems High quality drinking water can be produced with membrane filtration processes like reverse osmosis (RO) and nanofiltration (NF). Because the global demand for fresh clean water is increasing, these membrane technologies will increase in importance in the coming decades. One of the most serious...
doctoral thesis 2009
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