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Mehta, Divvay (author)Magnesium is one of the most critical natural resources and 96% of magnesium used in Europe is imported. The present study investigated possible ways of implementing circularity in the magnesium cycle within the borders of Waternet, a water utility in the Netherlands. The wastewater treatment plant at Amsterdam-West produces struvite from...master thesis 2022
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Schouten, Sander (author)Natural organic matter is one of the key components to remove from source water during drinking water production. NOM not only negatively influences the colour, taste and smell of the water, it also decreases the effectiveness of common water treatment steps such as (membrane) filtration and UV desinfectation. A big fraction of natural organic...master thesis 2022
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Kramer, Zino (author)This research aims to analyse the non-ohmic resistance of multiple ion-exchange membranes (IEM) in series, for a better understanding of membrane resistances. These membranes can be found in series in energy storage systems such as acid-base flow batteries (ABFB).<br/>The effect of different current densities on the ohmic and non-ohmic...master thesis 2022
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Qian, Z. (author), Miedema, Henk (author), de Smet, Louis C.P.M. (author), Sudhölter, Ernst J. R. (author)We investigated in detail the permeation selectivity in the electro-dialysis of Na<sup>+</sup>, K<sup>+</sup>, Mg<sup>2+</sup> and Ca<sup>2+</sup> in both binary and quaternary mixtures using a supported liquid membrane (SLM). The SLM consisted of the organic liquid 2-nitrophenyl octyl ether (NPOE) containing a lipophilic anion, i.e. tetrakis...journal article 2022
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Culcasi, A. (author), Ktori, R. (author), Pellegrino, A. (author), Rodriguez Pascual, M. (author), van Loosdrecht, Mark C.M. (author), Tamburini, A. (author), Cipollina, A. (author), Xevgenos, Dimitris (author), Micale, G. (author)European policy encourages the adoption of sustainable systems that promote the efficient use and recovery of minerals and chemicals. In this respect, desalination brines do contain a dramatic amount of valuable minerals and can be valorized through appropriate treatments rather than releasing them into the environment. This paper proposes an...journal article 2022
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Liu, Zhen (author), Solliec, Morgan (author), Papineau, Isabelle (author), Lompe, K.M. (author), Mohseni, Madjid (author), Bérubé, Pierre R. (author), Sauvé, Sébastien (author), Barbeau, Benoit (author)Biological ion exchange (BIEX) refers to operating ion exchange (IX) filters with infrequent regeneration to favor the microbial growth on resin surface and thereby contribute to the removal of organic matter through biodegradation. However, the extent of biodegradation on BIEX resins is still debatable due to the difficulty in discriminating...journal article 2022
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Ding, Lei (author), Wanga, Dandan (author), Li, Ling (author), Jia, Yunhan (author), Ma, Jiangya (author), Wang, Feifei (author), van der Hoek, J.P. (author)Natural organic matter in waters varies in different fractions. To better understand the removal of different fractions by a magnetic ion exchange (MIEX) resin and the mechanism behind it, this study investigated adsorption kinetics, equilibrium and thermodynamics of humic acid (HA) fractions with different hydrophilic-hydrophobic properties...journal article 2022
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Tufa, Ramato Ashu (author), Blommaert, M.A. (author), Chanda, Debabrata (author), Li, Qingfeng (author), Vermaas, D.A. (author), Aili, David (author)Bipolar membranes (BPMs) are recently emerging as a promising material for application in advanced electrochemical energy systems such as (photo)electrochemical CO2 reduction and water splitting. BPMs exhibit a unique property to accelerate water dissociation and ionic separation that allows for maintaining a steady-state pH gradient in...review 2021
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Moreno Gonzalez, M. (author), Chuekitkumchorn, Pattra (author), Silva, Marcelo (author), Groenewoud, Roos (author), Ottens, M. (author)Proteins derived from plant resources such as oilseed meals, canola and sunflower, are considered a viable alternative to animal proteins for food consumption. This work presents a rational methodology, using high throughput experimentation (HTE), for the separation of cruciferin and napin, the two major proteins of canola meal, by...journal article 2021
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Marin, Nicoleta Mirela (author), Stanculescu, I.R. (author)Despite Acid Blue 113 (AB 113)’s extensive use and negative environmental impact, very few studies have focused on its efficient and environmentally friendly removal. This research aims the removal of AB 113 from environmental aqueous media and its consequent enzymatic biodegradation. A strongly basic anion exchange resin in Cl<sup>−</sup>...journal article 2021
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Gkoutzamani, Ioanna (author)Biofouling and scaling are ongoing challenges for reverse osmosis (RO) membranes application in wastewater reclamation. Adequate RO feed pretreatment is necessary for biofouling and scaling control. The objective of this thesis was evaluated the effectiveness of ion exchange treatment with weak acid cation (WAC) and strong base anion (SBA)...master thesis 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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Verbist, Victor (author)A model is developed to simulate NaCl concentrations across a cation exchange membrane in the transient regime. The convectionless Nersnt-Planck equation is combined with the continuity equation to obtain a partial dierential equation in time and space. The boundary conditions at the edges of the cell for this equationare a constant bulk...bachelor thesis 2019
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Cabrera Rodriguez, C.I. (author), Cartin Caballero, C.M. (author), Platarou, E. (author), de Weerd, F.A. (author), van der Wielen, L.A.M. (author), Straathof, Adrie J.J. (author)Production of bio-based acetate is commonly hindered by the high costs of the downstream processing. In this paper, a model is developed to describe a new method that recovers acetate salts using anion exchange resins, and subsequently desorbs and upgrades them using CO<sub>2</sub>-expanded alcohol. The model consists of equilibrium...journal article 2018
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Hordijk, Chris (author)This thesis provided an overview of the achievable ammonium concentrations, and the energy used to achieve these concentrations, by ion exchange, electrodialysis and reverse osmosis. The need for this overview arose during research for the N2kWh project, where one step in the process focused on increasing the ammonium concentration of (anaerobic...master thesis 2017
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Van Linden, N. (author)In the application of the Zero Liquid Discharge (ZLD) strategy, not a single drop of water leaves the waste water treatment plant (WWTP). In the recovery strategy of an actual full-scale ZLD WWTP, the focus lies on high quality water, which is fully recovered from reverse osmosis brine (RO-brine). A residual solid stream is generated and...master thesis 2016
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Zwart, M.M. (author)The necessary removal of organically bound nitrogen and ammonium from sewage conventionally requires energy for aeration and reduces the potential biogas production in the following anaerobic stage due to the required carbon source for de-nitrification. It has recently been demonstrated that fuel cells can generate electricity, using ammonia as...master thesis 2014
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- Ouwerkerk, U.P. (author) master thesis 2013
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Lobino, M. (author), Marshall, G.D. (author), Xiong, C. (author), Clark, A.S. (author), Bonneau, D. (author), Natarajan, C.M. (author), Tanner, M.G. (author), Hadfield, R.H. (author), Dorenbos, S.N. (author), Zijlstra, T. (author), Zwiller, V. (author), Marangoni, M. (author), Ramponi, R. (author), Thompson, M.G. (author), Eggleton, B.J. (author), O'Brien, J.L. (author)We demonstrate photon-pair generation in a reverse proton exchanged waveguide fabricated on a periodically poled magnesium doped stoichiometric lithium tantalate substrate. Detected pairs are generated via a cascaded second order nonlinear process where a pump laser at wavelength of 1.55 ?m is first doubled in frequency by second harmonic...journal article 2011
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