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van Zanten, Jimmy (author)
Hydrogen is an interesting and promising alternative for fuels. Currently, most hydrogen is produced via a process called steam reforming, where a reaction between methane and water occurs, with carbon monoxide and carbon dioxide as waste products and released in the atmosphere. This work presents a study on the sustainable production of...
master thesis 2024
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Hendriks, Fiona (author)
Biofuels offer the potential to significantly reduce greenhouse gas (GHG) emissions in merchant ships by up to 90% and can be seamlessly integrated into existing engines as drop-in fuel. Utilising residual biomass sources for biofuel production presents financial and environmental advantages. In Spain's Jaén province, approximately 2,05 million...
master thesis 2024
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Kolff, Fenna (author)
The world is witnessing unprecedented climate changes, which have worsened over the past couple of years. Despite significant progress in renewable energy, achieving a reduction of global warming remains challenging. Renewable energy sources like solar, wind, and hydroelectric technologies offer promising solutions, but challenges persist due to...
master thesis 2024
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Leijten, Effie (author)
In the ever-changing landscape of the 21st century, complex issues like climate change demand holistic solutions. However, traditional scientific approaches often fall short by employing reductionism, breaking problems into isolated parts. This executive summary introduces a thesis that calls for a shift towards a more holistic and...
master thesis 2023
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Christofi, Andreas (author)
Dating back to 10,000 B.C.E., fermentation has served as a vital tool primarily for food preservation. In the nineteenth century, Louis Pasteur put forth the proposition that the occurrence of fermentation is predominantly facilitated by the presence of microorganisms. Pasteur’s discovery spurred comprehensive studies on microorganisms,...
master thesis 2023
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van Rechteren Limpurg, Elisabeth (author)
The use of encroacher bush in Namibia for the production of sustainable maritime biofuel can play a role in reducing greenhouse gas emissions within the maritime sector. However, it is crucial to ensure that biofuel is produced sustainably, to mitigate any potential negative social, economic and environmental impacts. This thesis focuses on...
master thesis 2023
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Waling, Loulotte (author)
In recent years, biotechnological processes have gained increased interest due to their potential for high-value compound production and waste recycling. This shift towards biotechnology is driven by global challenges such as food security, climate change, and the transition to renewable resources. To address the limitations of large-scale...
master thesis 2023
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Eijsberg, Daan (author)
Fermentation processes are considered to be essential to decrease our reliance on fossil fuel based products. However, the scale-up from lab-scale to industrial-scale has proven to be difficult. Computational Fluid Dynamics (CFD) has the potential to be a tool to optimize the scale-up and to help engineers understand the relevant hydrodynamics...
master thesis 2023
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Cohen, Hod (author)
Malaria is both an economically and medically burdensome disease taunting people worldwide. Treatments for the disease – transmitted by malarial Aedes and Anopheles mosquitoes infected with Plasmodium – are either temporary or in developmental stages, while rising insecticidal resistance and mosquitoes’ behavioral changes call for a lasting...
bachelor thesis 2022
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van der Wilt, Pieter (author)
The traditional Eulerian view of biomass in bioprocess modelling results in issues when modelling large-scale bioreactors in which heterogeneous conditions are common. As the field increasingly moves from “scale-up” to “scale-down” philosophy, in which such heterogeneities are included from the start of process design, accurate modelling of the...
bachelor thesis 2022
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El Hassnaoui, Yassine (author)
master thesis 2022
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Zwaan, Ramon (author)
The first full-scale Kaumera extraction plants are in operation and increases the circularity of WWTP already. However, to reach a goal of zero waste production it is necessary to look into the waste stream of the Kaumera extraction itself. Roughly 30% of organics is extracted in the process and the remaining organics in the waste can be further...
master thesis 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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Brocades Zaalberg, Laura (author)
The use of syngas, a renewable energy source, has raised increasing interest for the production of chemicals. Syngas, a mixture containing CO, H2, and CO2, can be converted into hydrocarbons, such as ethanol and 2,3-butanediol, via biochemical conversion. In this process, the microorganism Clostridium auto ethanogenum (C. auto ethanogenum)...
master thesis 2021
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Depaz, Lena (author)
Medium chain length polyhydroxyalkanoate (mcl-PHA) is a form of polyhydroxyalkanoate (PHA) which has properties similar to rubber. However, most of the research on mcl-PHA has been focused on pure cultures with artificial substrates, both of which increase the cost of the production to economically unviable levels. This is especially the case...
master thesis 2021
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LU, Mu-En (author)
Comammox bacteria are capable of catalysing the full nitrification pathway – oxidation of ammonium to nitrate – and have been encountered in many ecosystems recently (Lawson & Lücker, 2018). What the ecological role of comammox bacteria is in hypoxic enrichment cultures remains unclear. Based on the thermodynamics and biochemistry of known...
master thesis 2020
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van Langen Rosón, Andrea (author)
The rapid advancements in synthetic biology have allowed for the development of revolutionary technologies such as bacteriophage-mediated gene and microbiome therapies. These technologies create the need for management of the upcoming risks and uncertainties. Safe-by-Design is a strategy to build in safety measures in an effort to mitigate and...
bachelor thesis 2020
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Puiman, Lars (author)
master thesis 2020
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Schouteren, Madelon (author)
Nowadays the use of aerobic granular sludge, also known as Nereda™ in municipal wastewater treatment, is applied worldwide. The next innovation in for this technology is the implementation of granular sludge in continuous flow through configuration. However, many challenges will have to be faced before this technology can be applied in full...
master thesis 2019
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Brouwer, Rik (author)
The development of research evaluation frameworks sparked a focus on research impact. Therefore, this study explores the concept of research impact, looking at its various interpretations, and possible indicators and enablers. Finally, a design proposal for an impact mapping tool is made, to give scientists more awareness of the impact of their...
master thesis 2019
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