David Gabriel

Nitrogen-to-phosphorus limitation shift in a polyhydroxyalkanoate-enriched mixed microbial community

Serena Falcioni, Leandro Di Gloria, A. Manmeen, Eleftherios Touloupakis et autres

Polyhydroxyalkanoates are biodegradable polyesters considered promising alternatives to conventional plastics. To reduce costs associated with pure cultures, increasing attention has been given to mixed microbial communities and low-cost substrates. Uncoupled feeding of carbon and nutrients enables the separation of growth and polyhydroxyalkanoates …

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Energy-efficient selection of high-yield PHA producers via microaerophilic uncoupled feeding

Serena Falcioni, Alessio Castagnoli, Ajchareeya Manmeen, Elia Biagini et autres

Uncoupled feeding (UnF), supplying organic carbon and nutrients separately, is a promising strategy to enrich polyhydroxyalkanoates (PHA)-accumulating mixed microbial communities (MMCs) and has shown higher productivity than conventional approaches. UnF enables improved oxygen control, which is particularly relevant for PHA production, where …

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Assessing the temperature effect on the kinetics of a hydrogenotrophic methanogenic culture using a novel headspace-free methodology

Manuel Fachal-Suárez, Àlex Gaona, Pablo Hernández Benavides, Javier Lafuente et autres

• Headspace-free methodology enables continuous monitoring of dissolved H₂ kinetics. • H₂ uptake rate increases with temperature, reaching 773 mmol H₂·gVSS⁻¹·d⁻¹ at 65°C. • PHF-HUR avoids gas-liquid transfer limitations. Time is reduced compared to SBT. • Temperature dependent half-saturation constant ranges from …

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RECYCLES Decision Support Tool - DST

E Valdés, Alessio Castagnoli, Cecilia Polizzi, Erika Pasciucco et autres

The RECYCLES Decision Support Tool (DST) is designed to evaluate and compare up to three different treatment scenarios for combustion gases emitted by the pigment industry. The tool provides a structured and quantitative framework to support decision-making based on technical and environmental …

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Gaseous Emissions, Best Practices and Treatment: Biofiltration and Complementary Systems

Daniel González, David Gabriel, M.C. Gutiérrez, M.A. Martı́n

Despite composting being an economical and environmentally friendly technology, impacts on the surroundings may be produced due to the gaseous emissions generated during waste decomposition, especially if the process is not appropriately managed. This chapter addresses the typical characteristics of composting gaseous …

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Modelling the long-term dynamics and inhibitory effects of crude glycerol impurities in a methanogenic and sulfidogenic UASB bioreactor

E Valdés, David Gabriel, Daniel González, Giulio Munz

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Impact of Shifting Nitrogen to Phosphorus Limitation on Performance and Microbial Structure of a Polyhydroxyalkanoates Accumulating Population Selected with an Uncoupled Feeding

Serena Falcioni, Leandro Di Gloria, Ajchareeya Manmeen, Eleftherios Touloupakis et autres

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Assessing the Temperature Effect on the Kinetics of a Hydrogenotrophic Methanogenic Culture Using a Novel Headspace-Free Methodology

Manuel Fachal-Suárez, Àlex Gaona, Pablo Hernández Benavides, Javier Lafuente et autres

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Assessing the temperature effect on the kinetics of a hydrogenotrophic methanogenic culture using a novel headspace-free methodology

David Gabriel, Manuel Fachal-Suárez, Àlex Gaona, Pablo Hernández Benavides et autres

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An overview of biomethanation and the use of membrane technologies as a candidate to overcome H2 mass transfer limitations

Manuel Fachal-Suárez, Santhana Krishnan, Sumate S. Chaiprapat, Daniel González et autres

Energy produced from renewable sources such as sun or wind are intermittent, depending on circumstantial factors. This fact explains why energy supply and demand do not match. In this context, the interest in biomethanation has increased as an interesting contribution to the …

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A critical evaluation of platinum deposition techniques for hydrogen production in microbial electrolysis cells

Pilar Sánchez‐Peña, Jesús Rodríguez, Juan Antonio Baeza, David Gabriel et autres

Despite its high cost, Pt is the usual catalyst for hydrogen production in the cathode of Microbial Electrolysis Cells (MECs). Its effectiveness depends not only on the amount deposited but also on the availability and distribution of Pt nanoparticles on the cathode …

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Elucidating the role of sub-thermophilic temperature and pre-hydrolyzation for effective upgrading scheme of old swine manure digesters

Worakan Chetawan, Santhana Krishnan, Kanyarat Saritpongteeraka, Arkom Palamanit et autres

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