Browsing University of Galway Theses (PhD Theses) by Subject "Anaerobic digestion"
Now showing items 1-11 of 11
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Anaerobic digestion of nut and coffee wastes: different pretreatment techniques to enhance methane production
(NUI Galway, 2022-07-25)Lignocellulosic materials (LMs) are the most abundant residues on the planet and have a great potential for methane production. Nevertheless, the energy potential of LMs for biofuel production is limited by their complex ... -
Anaerobic digestion of selenium-rich wastewater for simultaneous methane and volatile fatty acid production and selenium bioremediation
(NUI Galway, 2022-09-09)This research aimed at investigating the anaerobic digestion (AD) of selenium (Se)-rich and lipid-rich wastewaters via evaluating the operational parameters in sequential and continuous bioreactors. In the first part of ... -
Anaerobic microbial hydrolysis and fermentation of food waste for volatile fatty acid production
(2016-04-28)Landfill, incineration, compositing and anaerobic digestion (AD) are the principal food-waste (FW) treatment methods used in the European Union. Because of the EU landfill directive and waste-management policies on organic ... -
Beyond Lolium perenne: the impact of grassland biodiversity on butyric acid and biomethane production in a forage-based anaerobic biorefinery
(NUI Galway, 2024-02-22)Permanent grassland fields are complex ecosystems consisting of graminoids (e.g., grasses) and forbs (e.g., legumes and herbs), which are crucial for environmental health and food production. Forbs are important players ... -
Deciphering anaerobic ethanol oxidation for better recovery of renewable energy from wastewater
(NUI Galway, 2024-03-28)Anaerobic digestion is a promising technology relying on complex microbial interactions to convert organics into methane, achieving sustainable energy recovery. Ethanol is an important low-molecular intermediate during ... -
Evaluation Of Biogas Production From Anaerobic Digestion Of Pig Manure And Grass Silage
(2012-10-19)The research project evaluated biogas production from anaerobic co-digestion of pig manure (PM) and grass silage (GS) in laboratory- and pilot- scale studies. In addition, improvement of the biogas yield from GS via ... -
Insights into microbial acclimation to salinity in high-rate anaerobic digestion
(NUI Galway, 2024-02-12)In recent years, anaerobic digestion (AD) has been investigated as a suitable biotechnology to treat wastewater at elevated salinities. Nevertheless, when starting up AD reactors with inocula that are not adapted to salinity, ... -
The life-cycle of methanogenic granular biofilms
(NUI Galway, 2019-08-19)Anaerobic granules, sometimes referred to as methanogenic granules, underpin the sustainable treatment of wastewater in high-rate anaerobic bioreactors. They are spontaneously-forming self-immobilised biofilm aggregates ... -
Low-temperature anaerobic digestion as a core technology for the sustainable treatment of municipal wastewater
(2013-11-29)The currently applied paradigm for municipal wastewater treatment in the European Union does not meet basic sustainability criteria. Indeed, it runs counter to the stated goals of recent European Council policies regarding ... -
Potential and optimisation of agriculture-based anaerobic digestion for environmental mitigation of agriculture-associated pollution
(NUI Galway, 2020-12-10)The current work has taken a holistic approach to understanding the potential for mitigation of pollution from agriculture using anaerobic digestion (AD), with a particular focus on reduction of pathogen load to the ... -
Pure culture, co-culture and whole ecosystem investigations of single anaerobes, partnerships and microbial communities in anaerobic digestion
(2017-10-20)Anaerobic digestion (AD) is a multi-stage process whereby biodegradable material is broken down by complex microbial consortia into renewable CH4 in the absence of oxygen during waste and wastewater treatment. Anaerobic ...