Searched for: subject:"wastewater%5C+treatment"
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de Graaff, D.R. (author)
Increase in sea level will lead to an increase in salinity in domestic wastewater systems. In order to anticipate its effects on biological wastewater treatment, the impact has to be assessed with lab-scale experiments. Aerobic granular sludge (AGS) is a successful technology for simultaneous removal of organic carbon (COD), nitrogen, and...
doctoral thesis 2020
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Guo, H. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
Full-scale aerobic granular sludge technology under the trade name Nereda® has been implemented for municipal, as well as industrial wastewater treatment. Owing to the operational reactor procedures, two types of waste aerobic granular sludge can be clearly distinguished: 1) aerobic granular sludge selection discharge (AGS-SD) and 2) aerobic...
journal article 2020
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Guo, H. (author), Felz, S. (author), Lin, Y. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
Aerobic granular sludge (AGS) technology is an alternative to conventional activated sludge to reduce the process footprint and energy consumption. Strategies for the efficient management of its produced biomass, that is grown in a granular morphology as well, need further development. Anaerobic digestion (AD) is commonly applied in waste...
journal article 2020
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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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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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Saadabadi, S.A. (author), Thallam Thattai, A. (author), Fan, L. (author), Lindeboom, R.E.F. (author), Spanjers, H. (author), Aravind, P.V. (author)
Anaerobic Digestion (AD) is used worldwide for treating organic waste and wastewater. Biogas produced can be converted using conventional energy conversion devices to provide energy efficient, integrated waste solutions. Typically, the electrical conversion-efficiency of these devices is 30–40% and is lowered due to biogas utilization instead...
review 2019
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Zietzschmann, F.E. (author), Dittmar, Stefan (author), Splettstößer, Lydia (author), Hunsicker, Jonas (author), Dittmann, Daniel (author), Meinel, Felix (author), Rößler, Annette (author), Metzger, Steffen (author), Jekel, Martin (author), Ruhl, Aki Sebastian (author)
Powdered activated carbon (PAC) for organic micro-pollutant (OMP) removal can be applied effectively on wastewater treatment plant (WWTP) effluents by using re-circulation schemes, accumulating the PAC in the system. This technique is complex because several factors are unknown: (i) the PAC concentration in the system, (ii) specific and...
journal article 2019
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Conthe Calvo, M. (author), Lycus, Pawel (author), Arntzen, Magnus (author), Ramos da Silva, Aline (author), Frostegård, Åsa (author), Bakken, Lars R. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author)
The strong greenhouse gas nitrous oxide (N<sub>2</sub>O) can be emitted from wastewater treatment systems as a byproduct of ammonium oxidation and as the last intermediate in the stepwise reduction of nitrate to N<sub>2</sub> by denitrifying organisms. A potential strategy to reduce N<sub>2</sub>O emissions would be to enhance the activity of...
journal article 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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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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Le, Quan H. (author), Verheijen, Peter J.T. (author), van Loosdrecht, Mark C.M. (author), Volcke, Eveline I.P. (author)
A stepwise experimental design procedure to obtain reliable data from wastewater treatment plants (WWTPs) was developed. The proposed procedure aims at determining sets of additional measurements (besides available ones) that guarantee the identifiability of key process variables, which means that their value can be calculated from other,...
journal article 2018
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Muñoz Sierra, Julian (author), Oosterkamp, M.J. (author), Wang, W.W. (author), Spanjers, H. (author), van Lier, J.B. (author)
Industrial wastewaters are becoming increasingly associated with extreme conditions such as the presence of refractory compounds and high salinity that adversely affect biomass retention or reduce biological activity. Hence, this study evaluated the impact of long-term salinity increase to 20 gNa<sup>+</sup>.L<sup>−1</sup> on the...
journal article 2018
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Mannina, Giorgio (author), Chandran, Kartik (author), Capodici, Marco (author), Cosenza, Alida (author), Di Trapani, Daniele (author), van Loosdrecht, Mark C.M. (author)
This study aimed at evaluating the nitrous oxide (N2O) emissions from membrane bioreactors (MBRs) for wastewater treatment. The study investigated the N2O emissions considering multiple influential factors over a two-year period: (i) different MBR based process configurations; (ii) wastewater composition (municipal or industrial); (iii)...
journal article 2018
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van den Brand, Tessa (author), Snip, Laura (author), Palmen, Luc (author), Weij, Paul (author), Sipma, Jan (author), van Loosdrecht, Mark C.M. (author)
The application of sulfate reducing bacteria (SRB) to treat municipal wastewater is seldom considered. For instance, due to low sludge yield it can reduce the amount of excess sludge produced significantly. Several studies, mainly at laboratory-scale, revealed that SRB can proliferate in artificial wastewater systems at temperatures of 20°C...
journal article 2018
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Hoekstra, M. (author), Geilvoet, Stefan P. (author), Hendrickx, Tim L.G. (author), van Erp Taalman Kip, Charlotte S. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author)
The aim of this research was to study the biological feasibility of the Partial Nitritation/Anammox (PN/A) technology to remove nitrogen from municipal mainstream wastewaters. During stable process operations at summer temperatures (23.2 ± 1.3°C), the total nitrogen removal rate was 0.223 ± 0.029 kg N (m<sup>3 </sup>d)<sup>−1</sup> while at...
journal article 2018
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Zhao, X. (author), Yang, Jixian (author), Ma, Fang (author)
For wastewater-related issues (WRI), life cycle assessment (LCA) is often used to evaluate environmental impacts and derive optimization strategies. To promote the application of LCA for WRI, it is critical to incorporate local impact of water pollutants. Organic pollution, a main type of water pollution, has not been given much consideration...
journal article 2018
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Rubio-Rincón, Francisco (author), Lopez-Vazquez, Carlos (author), Welles, L. (author), van den Brand, Tessa (author), Abbas, B.A. (author), van Loosdrecht, Mark C.M. (author), Brdjanovic, Damir (author)
The concentration of sulphate present in wastewater can vary from 10 to 500 mg SO<sub>4</sub> <sup>2−</sup>/L. During anaerobic conditions, sulphate is reduced to sulphide by sulphate-reducing bacteria (SRB). Sulphide generation is undesired in wastewater treatment plants (WWTPs). Previous research indicated that SRB are inhibited by the...
journal article 2017
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Zahmatkesh, M. (author), Spanjers, H. (author), van Lier, J.B. (author)
In this study, we tested a new approach to facilitate the application of white rot fungi (WRF) under non-sterile conditions, by introducing grain sorghum as carrier and sole carbon and nutrient source for WRF. To this end, Trametes versicolor was immobilized on sorghum, and its ability to remove humic acid (HA) from synthetic and real...
journal article 2017
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Fischer, A. (author), ter Laak, T (author), Bronders, J. (author), Desmet, N. (author), Christoffels, E. (author), van Wezel, A (author), van der Hoek, J.P. (author)
Water authorities and drinking water companies are challenged with the question if, where and how to abate contaminants of emerging concern in the urban water cycle. The most effective strategy under given conditions is often unclear to these stakeholders as it requires insight into several aspects of the contaminants such as sources, properties...
journal article 2017
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Jakab, Agnes (author), Pode, Rodica (author), Pop, Aniela (author), Schoonman, J. (author), Orha, Corina (author), Manea, Florica (author)
Three types of composite electrode materials, i.e. carbon nanotubes-epoxy (CNT), zeolite-carbon nanotubes-epoxy (ZCNT) and TiO<sub>2</sub>-modified zeolite-carbon nanotubes-epoxy (TiZCNT), were synthesized, morphologically and electrically characterized, and tested in the photoelectrodegradation of pentachlorophenol (PCP) from water. The...
journal article 2017
Searched for: subject:"wastewater%5C+treatment"
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