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de Jong, S.I. (author)
Alkaliphiles thrive in environments with a pH of 8.5 or above, while maintaining an internal pH closer to neutral. Thus, alkaliphilic microorganisms have a proton gradient inverted with respect to the normal orientation. Intuitively, this would nullify the potential to generate energy via respiration with regularly oriented respiratory chains...
doctoral thesis 2024
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Pereira Espíndola, S. (author)
The urgent need to address sustainability within material science, driven by global environmental concerns over pollution, climate change, and resource scarcity, has led to a growing interest in bio-based materials. This thesis explores the potential of biopolymers as alternatives to non-renewable resources, specifically the ones derived from...
doctoral thesis 2023
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Calderon Franco, D. (author)
Antibiotic resistance is one of the biggest threats to global health, food security, and development today, leading to a growing number of difficult-to-treat infections and an economic burden. It can affect anyone of any age and in any country. It is mainly accelerated by the misuse and abuse of antibiotics, poor hygiene, and a lack of...
doctoral thesis 2023
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Tomas Martinez, S. (author)
The majority of bacteria grow in the form of microbial aggregates known as biofilms. In these biofilms, microorganisms are embedded in a mixture of extracellular polymeric substances (EPS) produced by the microorganisms themselves. EPS is a complex mixture of biopolymers of different nature, such as polysaccharides, proteins, nucleic acids or...
doctoral thesis 2023
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Estevez Alonso, A. (author)
Microbes are the gears that sustain all forms of life in planet Earth and are expected to become key players in the transition towards a more sustainable society. In this thesis, microbes from sewage sludge are used for the production of polyhydroxyalkanoates, biodegradable polymers that have the potential to replace<br/>many of the petroleum...
doctoral thesis 2022
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Pei, R. (author)
Fossils derived plastics offer a wide range of services in applications, frompackaging to building and construction, to electronics and water distribution networks. The use of fossils to produce plastics releases the stored CO2 and contributes to climate change. Due to durability and resistance to degradation, discarded plastics accumulate in...
doctoral thesis 2022
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van Dijk, E.J.H. (author)
doctoral thesis 2022
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van den Berg, L. (author)
A large part of the wastewater produced worldwide is discharged without any treatment. This has several negative consequences, including the spread of diseases and contamination of the environment. One method to treat wastewater is called aerobic granular sludge (AGS), an advanced, compact technology that uses granules. Granules are spherical...
doctoral thesis 2022
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Kleikamp, H.B.C. (author)
The large unexplored space of microbial biodiversity forms a well of untapped potential of enzymes and bioactive compounds. Genomic methods have made significant improvements over the past decades in their analysis of microbial communities. However, several aspects of nature can’t be described by a genome alone, such as expressed functions in...
doctoral thesis 2022
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Lip, K.Y.F. (author)
Saccharomyces yeasts are common workhorses for the production of alcoholic beverage and bio-ethanol. In these production processes, temperature is one of the predominant factors determining the operational costs of the industrial fermentation processes and the quality of the products (alcoholic beverage) because it influences the functioning of...
doctoral thesis 2022
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Cerruti, M. (author)
A transition to a circular economy is necessary to mitigate the negative effects on the environment of the exploitation and disposal of materials and to achieve society-wide benefits. The current produce-waste-dispose model is slowly changing toward a more sustainable produce-userecycle- upcycle model. In this context, bio-based processes using...
doctoral thesis 2022
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Prot, T.J.F. (author)
Fertilizers are vital for our society since we use them to grow plants. These plants can produce fruits and vegetables that we can consume or use as feedstock for the animals, ending up in our plates. In short, we need fertilizers to make our food, and we are using an increasing quantity of it with the growing population. Phosphorus is an...
doctoral thesis 2021
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Pallares Vega, R. (author)
The rise of antibiotic resistant bacteria threatens the existing status quo of successful treatment of infectious diseases, leading to substantial personal and economic losses. Wastewater, carrying antibiotic resistant microorganisms from fecal origin, is an important route for disseminating anthropogenic-related resistant bacteria to natural...
doctoral thesis 2021
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Soler Jofra, A. (author)
One of the least studied nitrogen compounds is hydroxylamine. Hydroxylamine<br/>is a highly reactive and toxic inorganic compound that some microorganisms use<br/>as intermediate during nitrogen conversions. The aim of this thesis was to further<br/>understand the role of hydroxylamine in the nitrogen cycle.
doctoral thesis 2021
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Jafari Eshlaghi, M. (author)
Membranes are widely applied in water and waste water treatment as they provide an absolute barrier against the contaminants. Membranes are offered in wide pore size range and they are applied vastly due to their versatile and cost effective operation in dealing with wide range of streams. However, membranes, like any other filtration systems,...
doctoral thesis 2021
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Stouten, G.R. (author)
Quickly, the show is about the start. Date: 3.5 thousand million years ago, location: planet Earth, event: life. Naturally, life is starting small, even microscopically tiny. Life in the form of microorganisms endures eons of time in which the world changes. They survived, failed, adapted, thrived, and they actually changed the world. They have...
doctoral thesis 2021
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Barrios Hernandez, M.L. (author)
This book describes pathogen removal processes in aerobic granular sludge (AGS) wastewater treatment systems. Faecal indicators (E. coli, Enterococci, coliforms and bacteriophages) were tracked in full-scale AGS facilities and compared to parallel activated sludge (CAS) systems. AGS showed similar removals as the more complex CAS configurations....
doctoral thesis 2021
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Pinel, I.S.M. (author)
Open recirculating cooling systems have been vital elements in industry since the early 20th century. Their purpose is to release excess heat from processes through water evaporation so that production can be carried out at optimal temperature. With the global development of industrial activities such as manufacturing, electricity and chemical...
doctoral thesis 2021
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Soares Rodrigues, C.I. (author)
In recent decades, there has been an increase demand for renewable sources of energy and chemicals in replacement of their fossil-based counterparts to tackle the economic, social, and environmental issues associated with the processing and use of petrochemicals by humanity. Sucrose has proven to be a suitable alternative feedstock to substitute...
doctoral thesis 2021
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Gabriel Guedes da Silva, L. (author)
Cells are complex systems continuously exposed to changing, dynamic environments. Understanding how cells respond and adapt is of great interest not only from a fundamental viewpoint but also for the development of solutions for current challenges in medical, industrial and environmental research fields.<br/><br/>In this thesis, the bacterial...
doctoral thesis 2021
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