Searched for: subject%3A%22phosphate%22
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Xu, J. (author), Vecstaudza, Jana (author), Wesdorp, Marinus A. (author), Labberté, Margot (author), Salerno, Manuela (author), Kok, Joeri (author), van Rietbergen, Bert (author), van Osch, G.J.V.M. (author), Locs, Janis (author), Brama, Pieter A.J. (author)
Osteochondral defect repair with a collagen/collagen-magnesium-hydroxyapatite (Col/Col-Mg-HAp) scaffold has demonstrated good clinical results. However, subchondral bone repair remained suboptimal, potentially leading to damage to the regenerated overlying neocartilage. This study aimed to improve the bone repair potential of this scaffold by...
journal article 2024
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Jaroensuk, Juthamas (author), Sutthaphirom, Chalermroj (author), Phonbuppha, Jittima (author), Chinantuya, Wachirawit (author), Kesornpun, Chatchai (author), Akeratchatapan, Nattanon (author), Kittipanukul, Narongyot (author), Phatinuwat, Kamonwan (author), Hollmann, F. (author)
Cofactor imbalance obstructs the productivities of metabolically engineered cells. Herein, we employed a minimally perturbing system, xylose reductase and lactose (XR/lactose), to increase the levels of a pool of sugar phosphates which are connected to the biosynthesis of NAD(P)H, FAD, FMN, and ATP in Escherichia coli. The XR/lactose system...
journal article 2024
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Belloni, C. (author), Korving, L. (author), Witkamp, G.J. (author), Brück, E.H. (author), Dugulan, A.I. (author)
Iron oxide-based adsorbents showed potential to reach ultra-low phosphorus (P) concentrations to prevent eutrophication and recover P. High affinity, high capacity at low P concentrations (&lt;1 mg L<sup>−1</sup>), good stability, and reusability of the adsorbent are key factors for economic viability. In this study, nanoparticles of goethite...
journal article 2024
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Pavez Jara, J.A. (author), Iswarani, W.P. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)
Thermal hydrolysis process (THP) is a widely used pre-treatment method in the anaerobic digestion (AD) of waste municipal sewage sludge. A post AD dewatering step of the digestate produces a liquid stream called reject water. THP increases the concentration of humic substances (HSs) and nutrients in the produced reject water. Struvite...
journal article 2024
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Li, Linghang (author)
Aerobic granular sludge (AGS) is an innovative biotechnology extensively applied for treating municipal wastewater, and it can potentially treat sugar industry wastewater. Glucose is a prevalent substrate in sugar industry wastewater; nevertheless, the effect of glucose on AGS systems remains unexplored. In this study, an AGS reactor using...
master thesis 2023
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Belloni, C. (author)
This thesis focuses on recycling resources while preserving water quality and availability. This concept is at the basis of a healthy and sustainable society yet works needs to be done. Water scarcity will be a growing challenge that humanity will have to face in the coming years, due to poor resource management and the climate change crisis....
doctoral thesis 2023
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Wang, Feifei (author), Hua, Yulin (author), Pan, Jiazheng (author), Zhou, Jie (author), Hea, Chiquan (author), Hofman, J.A.M.H. (author), Chu, Wenhai (author), van der Hoek, J.P. (author)
In drinking water treatment plants (DWTPs), the widely used biological activated carbon filters (BACFs), as the last barrier before disinfection, can remove dissolved organic matter (DOM) known as precursors of disinfection by-products (DBPs). Whether phosphate addition can improve water purification and DBP control of BACFs is still...
journal article 2023
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Tomas Martinez, S. (author), Zwolsman, Erwin J. (author), Merlier, Franck (author), Pabst, Martin (author), Lin, Y. (author), van Loosdrecht, Mark C.M. (author), Weissbrodt, D.G. (author)
Polyphosphate accumulating organisms (PAOs) are responsible for enhanced biological phosphate removal (EBPR) from wastewater, where they grow embedded in a matrix of extracellular polymeric substances (EPS). EPSs comprise a mixture of biopolymers like polysaccharides or (glyco)proteins. Despite previous studies, little is known about the...
journal article 2023
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Belloni, C. (author), Korving, L. (author), Witkamp, G.J. (author), Brück, E.H. (author), Dugulan, A.I. (author)
Phosphorus (P) removal from freshwater bodies to ultra-low concentrations is fundamental to prevent eutrophication, while its recovery is necessary to close the P usage cycle. Iron oxide-based adsorbents seem promising candidates, being abundant, cheap, and easy to synthesize compounds, with good affinity for P. Affinity is the key parameter...
journal article 2023
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Belloni, C. (author), Korving, L. (author), Witkamp, G. J. (author), Brück, E.H. (author), de Jager, P. (author), Dugulan, A.I. (author)
Hybrid anion exchange adsorbents (HAIX) seem promising to prevent eutrophication and recover phosphate (P). HAIX consist of an anion exchange resin (AIX) backbone, promoting anion physisorption (outer-sphere complex), impregnated with iron (hydr)oxide nanoparticles (NPs), for selective P chemisorption (inner-sphere complex). In this work, for...
journal article 2023
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Nederveen, Tim (author)
Environmental guidelines (EU WFD) impose a strict effluent phosphate target on wastewater treatment plants (WWTP). An abundance of phosphate (and other nutrients) in a water body is called eutrophication. Eutrophication can lead to algal blooms which result in very low oxygen concentrations in the water. Other species, like fish and aquatic...
master thesis 2022
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Garcia Valicente, Mila (author)
Flame retardants are added to plastics in passenger vehicles to save lives. However, their releases can, in some cases, be accompanied by undesired impacts to human health and the environment. In the context of a transition to a Circular Economy, it is therefore important to keep track of the flow of flame retardants in passenger vehicle...
master thesis 2022
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Tiesma, Menno (author)
Leaching of phosphorus (P) from agricultural land is an important source of eutrophication in the Bollenstreek in the Netherlands. This is because floriculture has led to high P concentrations in the sandy soils with low organic carbon content, which are characterised by a low retention capacity for P. In this study, P concentrations in...
master thesis 2022
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Mangal, Muhammad Nasir (author), Salinas-Rodriguez, Sergio G. (author), Dusseldorp, Jos (author), Blankert, Bastiaan (author), Yangali-Quintanilla, Victor A. (author), Kemperman, Antoine J.B. (author), Schippers, Jan C. (author), van der Meer, Walter G.J. (author), Kennedy, M.D. (author)
The objectives of this study are to assess the performance of antiscalants in increasing the recovery (≥85%) of a reverse osmosis (RO) plant treating anaerobic groundwater (GW) in Kamerik (the Netherlands), and to identify scalants/foulant that may limit RO recovery. Five different commercially available antiscalants were compared on the...
journal article 2022
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Javier, Luisa (author), Pulido-Beltran, Laura (author), Vrouwenvelder, J.S. (author), Farhat, Nadia M. (author)
Nutrient limitation has been proposed as a biofouling control strategy for membrane systems. However, the impact of permeation on biofilm development under phosphorus-limited and enriched conditions is poorly understood. This study analyzed biofilm development in membrane fouling simulators (MFSs) with and without permeation supplied with...
journal article 2022
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Varela, Romina Fernández (author), Valino, Ana Laura (author), Abdelraheem, E.M.M. (author), Medici, R. (author), Sayé, Melisa (author), Pereira, Claudio A. (author), Hagedoorn, P.L. (author), Hanefeld, U. (author), Iribarren, Adolfo (author), Lewkowicz, Elizabeth (author)
In nature 2-deoxy-D-ribose-5-phosphate aldolase (DERA) catalyses the reversible formation of 2-deoxyribose 5-phosphate from D-glyceraldehyde 3-phosphate and acetaldehyde. In addition, this enzyme can use acetaldehyde as the sole substrate, resulting in a tandem aldol reaction, yielding 2,4,6-trideoxy-D-erythro-hexapyranose, which...
journal article 2022
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Prot, T.J.F. (author), Pannekoek, W. (author), Belloni, C. (author), Dugulan, A.I. (author), Hendrikx, R.W.A. (author), Korving, L. (author), van Loosdrecht, Mark C.M. (author)
It was recently discovered that vivianite (Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>.8H<sub>2</sub>O) could be magnetically extracted from digested activated sludge which opened a new route for phosphorus recovery (Wijdeveld et al. 2022). While its formation in digested sludge is regularly reported, it is not yet studied for fresh,...
journal article 2022
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Canongia Lopes Correia Diniz, Beatriz (author)
Phosphate accumulating organisms (PAOs) perform a storage polymer metabolism within an anaerobic-aerobic cycle. Anaerobically, PAOs take up volatile fatty acids (VFA) and store them as poly-ẞ-hydroxyalkanoates (PHA). The energy (mainly ATP) necessary for the transport and storage of VFA (and general maintenance) is obtained through the cleavage...
master thesis 2021
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Prot, T.J.F. (author), Korving, L. (author), Dugulan, A.I. (author), Goubitz, K. (author), van Loosdrecht, Mark C.M. (author)
The presence of soluble iron and phosphorus in wastewater sludge can lead to vivianite scaling. This problem is not often reported in literature, most likely due to the difficult identification and quantification of this mineral. It is usually present as a hard and blue deposit that can also be brown or black depending on its composition and...
journal article 2021
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Mohamed, A. Y.A. (author), Welles, L. (author), Siggins, A. (author), Healy, M. (author), Brdjanovic, Damir (author), Rada-Ariza, A. M. (author), Lopez-Vazquez, C. M. (author)
Photo-activated sludge (PAS) systems are an emerging wastewater treatment technology where microalgae provide oxygen to bacteria without the need for external aeration. There is limited knowledge on the optimal conditions for enhanced biological phosphorus removal (EBPR) in systems containing a mixture of polyphosphate accumulating organisms ...
journal article 2021
Searched for: subject%3A%22phosphate%22
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