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Saadabadi, S.A. (author), van Linden, N. (author), Heinsbroek, Abel (author), Aravind, P.V. (author)This study investigates the feasibility of electricity production in a solid oxide fuel cell using methane recovered from groundwater as the fuel. Methane must be removed from groundwater for the production of drinking water to, amongst others, avoid bacterial regrowth. Instead of releasing methane to the atmosphere or converting it to carbon...journal article 2021
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Pereira Espíndola, S. (author), Pronk, M. (author), Zlopasa, J. (author), Picken, S.J. (author), van Loosdrecht, Mark C.M. (author)Wastewater solids could be an attractive source of secondary raw cellulose, mainly originating from toilet paper. Cellulose can be recovered through sieving of raw wastewater, return sludge, or excess sludge. In particular, a large fraction of cellulose (13–15%) can be found in the excess sludge of the aerobic granular sludge produced by the...journal article 2021
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Apostolidou, Elisavet (author)The transition towards sustainable and resource efficient urban water systems is a major challenge nowadays. To meet the high demands of urban life resources need to be efficiently used and resource recovery from generated “waste” streams should become a “new normal”. Water and wastewater can provide an alternative and environmentally viable...master thesis 2020
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Cerruti, M. (author), Stevens, B. (author), Ebrahimi, S. (author), Alloul, A. (author), Vlaeminck, Siegfried E. (author), Weissbrodt, D.G. (author)Mixed-culture biotechnologies are widely used to capture nutrients from wastewater. Purple non-sulfur bacteria (PNSB), a guild of anoxygenic photomixotrophic organisms, rise interest for their ability to directly assimilate nutrients in the biomass. One challenge targets the aggregation and accumulation of PNSB biomass to separate it from the...journal article 2020
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Wahaab, Rifaat Abdel (author), Mahmoud, Mohamed (author), van Lier, J.B. (author)Over the past 4 decades, the increasing amounts of excess sludge from municipal wastewater treatment plants (WWTPs) represent a challenge toward achieving the sustainability of the drinking water and sanitation sector in Egypt, resulting in a serious environmental pollution due to the uncontrolled use of non-stabilized sludge. Here, we report a...journal article 2020
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Kehrein, P.A. (author), van Loosdrecht, Mark C.M. (author), Osseweijer, P. (author), Posada Duque, J.A. (author), Dewulf, Jo (author)This paper guides decision making in more sustainable urban water management practices that feed into a circular economy by presenting a novel framework for conceptually designing and strategically planning wastewater treatment processes from a resource recovery perspective. Municipal wastewater cannot any longer be perceived as waste stream...journal article 2020
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Lindeboom, R.E.F. (author), De Paepe, J. (author), Vanoppen, M. (author), Alonso-Fariñas, B. (author), Coessens, W. (author), Alloul, A. (author), Christiaens, M. E.R. (author), Dotremont, C. (author), Beckers, H. (author), Lamaze, B. (author), Demey, D. (author), Clauwaert, P. (author), Verliefde, A. R.D. (author), Vlaeminck, S. E. (author)Long-term human Space missions will rely on regenerative life support as resupply of water, oxygen and food comes with constraints. The International Space Station (ISS) relies on an evaporation/condensation system to recover 74–85% of the water in urine, yet suffers from repetitive scaling and biofouling while employing hazardous chemicals....journal article 2020
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De Vrieze, Jo (author), Verbeeck, Kristof (author), Pikaar, Ilje (author), Boere, Jos (author), van Wijk, A.J.M. (author), Rabaey, Korneel (author), Verstraete, Willy (author)The carrying capacity of the planet is being exceeded, and there is an urgent need to bring forward revolutionary approaches, particularly in terms of energy supply, carbon emissions and nitrogen inputs into the biosphere. Hydrogen gas, generated by means of renewable energy through water electrolysis, can be a platform molecule to drive the...journal article 2020
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Chang, Kelly (author)Biogas is the well-known product of Anaerobic Digestion (AD), but nowadays, the intermediate products (volatile fatty acids - VFAs) of anaerobic metabolism have gained increasing attention inside the “carboxylate platform”. However, steering and optimizing the process for selective metabolite production is still an unraveled task inside this...master thesis 2019
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Wang, Yundan (author)Nitrogen (N) removal is one of the key tasks for every wastewater treatment plant under the growing pressure of environmental protection. Prevailing applied N treatment technologies are mostly energy-intensive. This dilemma triggers a rethinking of the way to approach N management. “N2kWh-From pollutant to power” is a project that aims at...master thesis 2019
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van der Hoek, J.P. (author), Duijff, R. (author), Reinstra, Otto (author)Due to an increased food production the demand for nitrogen and phosphorus as fertilizers grows. Nitrogen based fertilizers are produced with the Haber-Bosch process through industrial fixation of N2 into ammonia. Through wastewater treatment the nitrogen is finally released back to the atmosphere as N2 gas. This nitrogen cycle is characterized...book chapter 2019
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Eijlander, Sabine (author), Mulder, K.F. (author)Global society is confronted with various challenges: climate change should be mitigated, and society should adapt to the impacts of climate change, resources will become scarcer and hence resources should be used more efficiently and recovered after use, the growing world population and its growing wealth create unprecedented emissions of...journal article 2019
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van der Hoek, J.P. (author), Duijff, R. (author), Reinstra, Otto (author)Due to increased food production, the demand for nitrogen and phosphorus as fertilizers grows. Nitrogen-based fertilizers are produced with the Haber-Bosch process through the industrial fixation of N2 into ammonia. Through wastewater treatment, the nitrogen is finally released back to the atmosphere as N2 gas. This nitrogen cycle is...journal article 2018
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Marang, L. (author)Polyhydroxyalkanoates (PHAs) are microbial storage polymers accumulated by many different prokaryotes as an intracellular carbon and energy reserve. The polymer properties make PHA interesting as bioplastic. Moreover, the monomers could serve as chiral building blocks or be used as a biofuel.<br/>Currently, PHA is commercially produced using...doctoral thesis 2017
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Groenewegen, Mathijs (author)The purpose of this thesis is to aid in the development of vertical cutting mining as a mining method. In order to do so, the technical feasibility and viability, and environmental benefit of vertical cutting as a complementary mining method were investigated. The investigation was performed for the case of the Victor Diamond mine in northern...master thesis 2017
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van der Hoek, J.P. (author), de Fooij, Heleen (author), Struker, André (author)Resources are becoming scarce. Therefore, reuse of resources is becoming more and more attractive. Wastewater can be used as a resource, since it contains many resources like organic matter, phosphorus, nitrogen, heavy metals, thermal energy, etc. This study focused on the reuse of organic matter and phosphorus from Amsterdam’s wastewater. There...journal article 2016
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Bellstedt, C.H. (author)Massive material flows that are mostly originating from the lithosphere are entering the cities, adding to and shaping the stock of the built environment. Due to concerns with material resource scarcity and the finiteness of virgin materials, resources will have to be measured and tracked. As a result of insufficient data on (average) civil...master thesis 2015
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Tamis, J. (author)Polyhydroxyalkanoate (PHA) is a natural product that can potentially replace a part of the chemicals and plastics derived from fossil sources. One of the main barriers for market entry of PHA is its relatively high price compared to conventional (fossil) feedstocks. This high price is related to current industrial production methods which are...doctoral thesis 2015
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Tamis, J. (author), Sorokin, D.Y. (author), Jiang, Y. (author), Van Loosdrecht, M.C.M. (author), Kleerebezem, R. (author)Background Many waste streams have a relatively high vegetable oil content, which is a potential resource that should be recovered. Microbial storage compound production for the recovery of lipids from lipid-water emulsions with open (unsterilized) microbial cultures was investigated in a sequencing batch reactor using a diluted vegetable oil...journal article 2015
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Mardones, J.P. (author)This thesis studies the zinc extraction from spinels through hydro and pyrometallurgical processing. Two zinc-bearing spinels are covered: zinc ferrite ZnO·Fe2O3 to a limited extent and gahnite ZnO·Al2O3 as the main subject, compounds which are found naturally on the Earth’s crust as well as in industrial residues from the zinc industry, steel...master thesis 2012