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de Ridder, D.J. (author), van de Wetering, T. S.C.M. (author), van Dijk, T. (author), van Halem, D. (author)Our aim was to systematically investigate the influence of anions (HPO<sub>4</sub> <sup>2−</sup>), cations (Ca<sup>2+</sup>, Mg<sup>2+</sup>) and neutral H<sub>4</sub>SiO<sub>4</sub> on Fe flocculation and As(III) removal in the complex natural water matrix. For this purpose, three different anaerobic groundwaters were selected and...journal article 2018
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Hadi Mosleh, Mojgan (author), Turner, Matthew (author), Sedighi, Majid (author), Vardon, P.J. (author)Uncertainties exist on the efficiency of CO<sub>2</sub> injection and storage in deep unminable coal seems due to potential reduction in the permeability of coal that is induced by CO<sub>2</sub> adsorption into the coal matrix. In addition, there is a limited knowledge about the stability of CO<sub>2</sub> stored in coal due to changes in...journal article 2018
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Yang, Ning (author), Yang, Daoguo (author), Zhang, Kouchi (author), Chen, Liangbiao (author), Liu, Dongjing (author), Cai, Miao (author), Fan, Xuejun (author)The effects of graphene stacking are investigated by comparing the results of methane adsorption energy, electronic performance, and the doping feasibility of five dopants (i.e., B, N, Al, Si, and P) via first-principles theory. Both zigzag and armchair graphenes are considered. It is found that the zigzag graphene with Bernal stacking has...journal article 2018
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Erdös, M. (author), de Lange, M.F. (author), Kapteijn, F. (author), Moultos, O. (author), Vlugt, T.J.H. (author)A computational screening of 2930 experimentally synthesized metal-organic frameworks (MOFs) is carried out to find the best-performing structures for adsorption-driven cooling (AC) applications with methanol and ethanol as working fluids. The screening methodology consists of four subsequent screening steps for each adsorbate. At the end of...journal article 2018
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Zuo, Y. (author), Ye, G. (author)The pore structure of alkali-activated slag has a significant influence on its performance. However, the literature shows insufficient studies regarding the suitability of different techniques for characterizing the pore structure and the influences of Na2O and curing age on pore structure development. In pursuit of a better understanding, the...journal article 2018
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Suresh Kumar, P. (author), Ejerssa, Wondesen Workneh (author), Wegener, Carita Clarissa (author), Korving, Leon (author), Dugulan, A.I. (author), Temmink, Hardy (author), van Loosdrecht, Mark C.M. (author), Witkamp, G.J. (author)Phosphate is a vital nutrient for life but its discharge from wastewater effluents can lead to eutrophication. Adsorption can be used as effluent polishing step to reduce phosphate to very low concentrations. Adsorbent reusability is an important parameter to make the adsorption process economically feasible. This implies that the adsorbent...journal article 2018
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Ouyang, X. (author), Koleva, D.A. (author), Ye, G. (author), van Breugel, K. (author)A complete understanding of the mechanisms upon which a filler acts in a cement-based material, e.g. as a C–S–H nucleation and/or growth-inducing factor, is of high importance. Although various studies report on accelerated cement hydration in the presence of fillers, the reason behind these observations is not completely understood yet. This...journal article 2017
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van der Meer, Marcel (author)One of the major challenges that low income countries have been facing for decades is to attain food security. The project covered in this report investigates how solar adsorption refrigeration technology can be used to achieve a higher level of food security in West-Africa. More specifically, the study aims to conceptualize suitable product...master thesis 2017
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Liu, Qian (author)Due to the ascending of energy consumption and the development of renewable energy technologies, energy storage techniques has become a significant solution to match the increasing electricity generation. Among all the energy storage systems, the rechargeable battery is one of the most widely used technologies in industry and daily life. <br/...master thesis 2017
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Bots, M.J. (author)Cellular solids are characteristically excellent energy absorbers due to their capacity to store large amounts of energy through compression. A bioinspired design approach identified the Pomelo fruit (Citrus Maximus) as a biological role model for energy absorption. Fruit peels’ biologically most important functions lies in the need to provide...master thesis 2017
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Huynh Thanh Le, T. (author)Corrosion on the car underbody can affect critical parts, which poses safety risks. The current corrosion protection methods such as wax, sealers and coatings are not effective enough and an advance form of corrosion protection is desired. Implementation of smart coatings might be an effective solution. These coatings contain a self-healing...master thesis 2017
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Suresh Kumar, P. (author), Prot, T.J.F. (author), Korving, Leon (author), Keesman, Karel J. (author), Dugulan, A.I. (author), van Loosdrecht, Mark C.M. (author), Witkamp, G.J. (author)Adsorption is often suggested for to reach very low phosphate levels in municipal wastewater effluent and even to recover phosphate. Adsorbent performance is usually associated with surface area but the exact role of the pore size distribution (PSD) is unclear. Here, we show the effect of the PSD on phosphate adsorption. Granular activated...journal article 2017
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Luna-Triguero, Azahara (author), Vicent Luna, J.M. (author), Becker, T. (author), Vlugt, T.J.H. (author), Dubbeldam, D. (author), Gomez-Alvarez, Paula (author), Calero, Sofia (author)An increase in demand for energy efficient processes for the separation of saturated and unsaturated light hydrocarbons mixtures drives the need of noncryogenic processes. The adsorptive separation using Metal-Organic Frameworks with coordinatively unsaturated metal sites may provide a cost-effective alternative due to the strong binding of the...journal article 2017
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Fernandez Dacosta, C. (author), Van Der Spek, Mijndert (author), Hung, Christine Roxanne (author), Oregionni, Gabriel David (author), Skagestad, Ragnhild (author), Parihar, Prashant (author), Gokak, D. T. (author), Strømman, Anders Hammer (author), Ramirez, Andrea (author)CO<sub>2</sub> utilisation is gaining interest as a potential element towards a sustainable economy. CO<sub>2</sub> can be used as feedstock in the synthesis of fuels, chemicals and polymers. This study presents a prospective assessment of carbon capture from a hydrogen unit at a refinery, where the CO<sub>2</sub> is either stored, or partly...journal article 2017
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Sajadi, B. (author), Goosen, J.F.L. (author), van Keulen, A. (author)The electrostatic instability (pull-in) of a flat electrode in a parallel plate capacitor has been shown to be highly sensitive to external mechanical loads such as pressure. In this paper, we substantiate the possibility of prompting additional unstable configurations in such a system, with a remarkable sensitivity to the applied pressure....journal article 2017
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van der Spek, Mijndert (author), Ramirez, Andrea (author), Faaij, André (author)this work addresses the methodological challenges of undertaking techno-economic assessments of very early stage (technology readiness level 3–4) CO<sub>2</sub> capture technologies. It draws lessons from a case study on CO<sub>2</sub> capture from a natural gas combined cycle with exhaust gas recycle and electric swing adsorption technology....journal article 2017
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Ramani, B. (author)Coal is certain to play a major role in the world’s energy future due to its low cost and widespread distribution around the world. At the same time, being the largest contributor to global CO2 emissions from energy use, coal faces significant environmental challenges in terms of air pollution and global warming. The study focuses on developing...master thesis 2016
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De Flart, S. (author)Direct Air Capture processes capture carbon dioxide directly from the air and aim to utilize the captured carbon dioxide; this would allow CO2 capture independent of source and location and can therefore address all CO2 emissions. Although already quite some processes and materials exist that are capable of this, it is still not yet widely...master thesis 2016
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Farajzadeh, R. (author), Bedrikovetsky, P. (author), Lotfollahi, M. (author), Lake, L. W. (author)Physical adsorption and mechanical entrapment are two major causes of polymer retention in porous media. Physical adsorption is considered an equilibrium process and is often modeled by assuming a Langmuir isotherm. The outcome is a steady state pressure response because the permeability reduction is also accounted for by adsorption. However,...journal article 2016
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Thorat, R.R. (author), Bruining, H. (author)Gas injection leads to foam formation in porous media in the presence of surfactant solutions, which is used for flow diversion and enhanced oil recovery. We present here laboratory experiments of co-injecting nitrogen and sodium C14?16 alpha olefin sulfonate with two concentrations: 20× the critical micelle concentration (CMC) in an...journal article 2016